./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product57_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/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 52d4df169e32a92349e61a4b5d4d731cb2f40ee9 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 01:34:26,840 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 01:34:26,841 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 01:34:26,847 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 01:34:26,848 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 01:34:26,848 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 01:34:26,849 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 01:34:26,849 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 01:34:26,850 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 01:34:26,851 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 01:34:26,851 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 01:34:26,851 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 01:34:26,852 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 01:34:26,852 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 01:34:26,853 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 01:34:26,853 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 01:34:26,854 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 01:34:26,854 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 01:34:26,855 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 01:34:26,856 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 01:34:26,856 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 01:34:26,857 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 01:34:26,858 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 01:34:26,858 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 01:34:26,858 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 01:34:26,859 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 01:34:26,859 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 01:34:26,860 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 01:34:26,860 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 01:34:26,861 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 01:34:26,861 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 01:34:26,861 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 01:34:26,861 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 01:34:26,861 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 01:34:26,862 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 01:34:26,862 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 01:34:26,862 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 01:34:26,869 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 01:34:26,869 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 01:34:26,870 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 01:34:26,870 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 01:34:26,870 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 01:34:26,870 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 01:34:26,870 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 01:34:26,870 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 01:34:26,871 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 01:34:26,871 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 01:34:26,871 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 01:34:26,871 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 01:34:26,871 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 01:34:26,871 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 01:34:26,871 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 01:34:26,871 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 01:34:26,871 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 01:34:26,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 01:34:26,872 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 01:34:26,872 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 01:34:26,872 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 01:34:26,872 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 01:34:26,872 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 01:34:26,872 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 01:34:26,872 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 01:34:26,872 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 01:34:26,872 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 01:34:26,872 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 01:34:26,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 01:34:26,873 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 01:34:26,873 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 01:34:26,873 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 01:34:26,873 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 01:34:26,873 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 01:34:26,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 01:34:26,873 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 01:34:26,873 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_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/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 -> 52d4df169e32a92349e61a4b5d4d731cb2f40ee9 [2018-12-02 01:34:26,891 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 01:34:26,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 01:34:26,903 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 01:34:26,904 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 01:34:26,905 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 01:34:26,905 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product57_true-unreach-call_false-termination.cil.c [2018-12-02 01:34:26,948 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/data/a059f13bc/f3dad593bad742b9aa34d96b933db529/FLAG50c1807b6 [2018-12-02 01:34:27,385 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 01:34:27,385 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/sv-benchmarks/c/product-lines/minepump_spec4_product57_true-unreach-call_false-termination.cil.c [2018-12-02 01:34:27,392 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/data/a059f13bc/f3dad593bad742b9aa34d96b933db529/FLAG50c1807b6 [2018-12-02 01:34:27,400 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/data/a059f13bc/f3dad593bad742b9aa34d96b933db529 [2018-12-02 01:34:27,402 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 01:34:27,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 01:34:27,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 01:34:27,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 01:34:27,406 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 01:34:27,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:34:27" (1/1) ... [2018-12-02 01:34:27,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc82c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27, skipping insertion in model container [2018-12-02 01:34:27,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:34:27" (1/1) ... [2018-12-02 01:34:27,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 01:34:27,433 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 01:34:27,582 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 01:34:27,627 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 01:34:27,668 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 01:34:27,684 INFO L195 MainTranslator]: Completed translation [2018-12-02 01:34:27,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27 WrapperNode [2018-12-02 01:34:27,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 01:34:27,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 01:34:27,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 01:34:27,685 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 01:34:27,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27" (1/1) ... [2018-12-02 01:34:27,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27" (1/1) ... [2018-12-02 01:34:27,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 01:34:27,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 01:34:27,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 01:34:27,705 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 01:34:27,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27" (1/1) ... [2018-12-02 01:34:27,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27" (1/1) ... [2018-12-02 01:34:27,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27" (1/1) ... [2018-12-02 01:34:27,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27" (1/1) ... [2018-12-02 01:34:27,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27" (1/1) ... [2018-12-02 01:34:27,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27" (1/1) ... [2018-12-02 01:34:27,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27" (1/1) ... [2018-12-02 01:34:27,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 01:34:27,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 01:34:27,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 01:34:27,727 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 01:34:27,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 01:34:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 01:34:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 01:34:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-02 01:34:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-02 01:34:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 01:34:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 01:34:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-02 01:34:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-02 01:34:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 01:34:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 01:34:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 01:34:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 01:34:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 01:34:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 01:34:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 01:34:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 01:34:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 01:34:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 01:34:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 01:34:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-02 01:34:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-02 01:34:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-02 01:34:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-02 01:34:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 01:34:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 01:34:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 01:34:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 01:34:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 01:34:27,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 01:34:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 01:34:27,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 01:34:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 01:34:27,762 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 01:34:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 01:34:27,762 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 01:34:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 01:34:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 01:34:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 01:34:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 01:34:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 01:34:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 01:34:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 01:34:27,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 01:34:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 01:34:27,764 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 01:34:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 01:34:27,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 01:34:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 01:34:27,764 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 01:34:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 01:34:27,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 01:34:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 01:34:27,764 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 01:34:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 01:34:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 01:34:27,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 01:34:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 01:34:27,765 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 01:34:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 01:34:27,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 01:34:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 01:34:27,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 01:34:28,045 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 01:34:28,045 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 01:34:28,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:34:28 BoogieIcfgContainer [2018-12-02 01:34:28,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 01:34:28,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 01:34:28,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 01:34:28,049 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 01:34:28,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:34:27" (1/3) ... [2018-12-02 01:34:28,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60459800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:34:28, skipping insertion in model container [2018-12-02 01:34:28,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:27" (2/3) ... [2018-12-02 01:34:28,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60459800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:34:28, skipping insertion in model container [2018-12-02 01:34:28,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:34:28" (3/3) ... [2018-12-02 01:34:28,052 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57_true-unreach-call_false-termination.cil.c [2018-12-02 01:34:28,060 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 01:34:28,065 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 01:34:28,074 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 01:34:28,092 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 01:34:28,092 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 01:34:28,092 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 01:34:28,092 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 01:34:28,092 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 01:34:28,093 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 01:34:28,093 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 01:34:28,093 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 01:34:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2018-12-02 01:34:28,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 01:34:28,116 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:28,117 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:28,119 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:28,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:28,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1585836956, now seen corresponding path program 1 times [2018-12-02 01:34:28,124 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:28,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:28,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:28,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:28,151 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:28,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:34:28,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 01:34:28,271 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:28,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 01:34:28,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 01:34:28,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 01:34:28,283 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 2 states. [2018-12-02 01:34:28,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:28,306 INFO L93 Difference]: Finished difference Result 286 states and 349 transitions. [2018-12-02 01:34:28,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 01:34:28,307 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 01:34:28,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:28,314 INFO L225 Difference]: With dead ends: 286 [2018-12-02 01:34:28,314 INFO L226 Difference]: Without dead ends: 143 [2018-12-02 01:34:28,316 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 01:34:28,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-12-02 01:34:28,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-12-02 01:34:28,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-12-02 01:34:28,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2018-12-02 01:34:28,345 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 46 [2018-12-02 01:34:28,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:28,346 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2018-12-02 01:34:28,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 01:34:28,346 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2018-12-02 01:34:28,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 01:34:28,347 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:28,347 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:28,347 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:28,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:28,348 INFO L82 PathProgramCache]: Analyzing trace with hash 215568744, now seen corresponding path program 1 times [2018-12-02 01:34:28,348 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:28,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:28,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:28,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:28,349 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:28,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:28,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:34:28,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 01:34:28,408 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:28,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 01:34:28,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 01:34:28,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 01:34:28,410 INFO L87 Difference]: Start difference. First operand 143 states and 166 transitions. Second operand 3 states. [2018-12-02 01:34:28,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:28,428 INFO L93 Difference]: Finished difference Result 235 states and 271 transitions. [2018-12-02 01:34:28,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 01:34:28,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 01:34:28,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:28,430 INFO L225 Difference]: With dead ends: 235 [2018-12-02 01:34:28,430 INFO L226 Difference]: Without dead ends: 134 [2018-12-02 01:34:28,432 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 01:34:28,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-12-02 01:34:28,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-12-02 01:34:28,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-12-02 01:34:28,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 154 transitions. [2018-12-02 01:34:28,443 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 154 transitions. Word has length 47 [2018-12-02 01:34:28,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:28,443 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 154 transitions. [2018-12-02 01:34:28,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 01:34:28,443 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 154 transitions. [2018-12-02 01:34:28,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 01:34:28,444 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:28,444 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:28,444 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:28,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:28,445 INFO L82 PathProgramCache]: Analyzing trace with hash -2137158565, now seen corresponding path program 1 times [2018-12-02 01:34:28,445 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:28,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:28,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:28,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:28,446 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:28,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:28,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:34:28,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 01:34:28,534 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:28,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 01:34:28,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 01:34:28,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 01:34:28,535 INFO L87 Difference]: Start difference. First operand 134 states and 154 transitions. Second operand 7 states. [2018-12-02 01:34:28,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:28,688 INFO L93 Difference]: Finished difference Result 244 states and 285 transitions. [2018-12-02 01:34:28,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 01:34:28,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-02 01:34:28,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:28,690 INFO L225 Difference]: With dead ends: 244 [2018-12-02 01:34:28,690 INFO L226 Difference]: Without dead ends: 134 [2018-12-02 01:34:28,691 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 01:34:28,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-12-02 01:34:28,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-12-02 01:34:28,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-12-02 01:34:28,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 153 transitions. [2018-12-02 01:34:28,698 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 153 transitions. Word has length 51 [2018-12-02 01:34:28,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:28,699 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 153 transitions. [2018-12-02 01:34:28,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 01:34:28,699 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 153 transitions. [2018-12-02 01:34:28,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-02 01:34:28,700 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:28,700 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:28,701 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:28,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:28,701 INFO L82 PathProgramCache]: Analyzing trace with hash 146173488, now seen corresponding path program 1 times [2018-12-02 01:34:28,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:28,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:28,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:28,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:28,702 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:28,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:28,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:34:28,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 01:34:28,768 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:28,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 01:34:28,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 01:34:28,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 01:34:28,769 INFO L87 Difference]: Start difference. First operand 134 states and 153 transitions. Second operand 5 states. [2018-12-02 01:34:29,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:29,078 INFO L93 Difference]: Finished difference Result 340 states and 405 transitions. [2018-12-02 01:34:29,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 01:34:29,079 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-02 01:34:29,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:29,081 INFO L225 Difference]: With dead ends: 340 [2018-12-02 01:34:29,081 INFO L226 Difference]: Without dead ends: 230 [2018-12-02 01:34:29,082 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 01:34:29,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-12-02 01:34:29,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 212. [2018-12-02 01:34:29,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-12-02 01:34:29,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 240 transitions. [2018-12-02 01:34:29,105 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 240 transitions. Word has length 64 [2018-12-02 01:34:29,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:29,105 INFO L480 AbstractCegarLoop]: Abstraction has 212 states and 240 transitions. [2018-12-02 01:34:29,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 01:34:29,105 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 240 transitions. [2018-12-02 01:34:29,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-02 01:34:29,107 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:29,107 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:29,107 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:29,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:29,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1166900812, now seen corresponding path program 1 times [2018-12-02 01:34:29,108 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:29,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:29,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:29,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:29,109 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:29,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:29,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:34:29,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 01:34:29,217 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:29,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 01:34:29,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 01:34:29,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 01:34:29,218 INFO L87 Difference]: Start difference. First operand 212 states and 240 transitions. Second operand 10 states. [2018-12-02 01:34:29,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:29,506 INFO L93 Difference]: Finished difference Result 686 states and 844 transitions. [2018-12-02 01:34:29,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 01:34:29,507 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2018-12-02 01:34:29,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:29,510 INFO L225 Difference]: With dead ends: 686 [2018-12-02 01:34:29,510 INFO L226 Difference]: Without dead ends: 498 [2018-12-02 01:34:29,511 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-02 01:34:29,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2018-12-02 01:34:29,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 488. [2018-12-02 01:34:29,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-12-02 01:34:29,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 571 transitions. [2018-12-02 01:34:29,534 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 571 transitions. Word has length 78 [2018-12-02 01:34:29,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:29,534 INFO L480 AbstractCegarLoop]: Abstraction has 488 states and 571 transitions. [2018-12-02 01:34:29,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 01:34:29,534 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 571 transitions. [2018-12-02 01:34:29,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-12-02 01:34:29,536 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:29,537 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, 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] [2018-12-02 01:34:29,537 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:29,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:29,537 INFO L82 PathProgramCache]: Analyzing trace with hash -942496390, now seen corresponding path program 1 times [2018-12-02 01:34:29,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:29,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:29,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:29,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:29,538 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-02 01:34:29,584 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:29,585 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:34:29,585 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-12-02 01:34:29,587 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [59], [62], [64], [65], [80], [83], [84], [85], [94], [98], [102], [105], [110], [116], [118], [121], [136], [137], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [173], [174], [206], [210], [216], [224], [228], [231], [233], [236], [239], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [275], [277], [278], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318], [319], [320] [2018-12-02 01:34:29,610 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:34:29,610 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:34:29,823 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 01:34:29,823 INFO L272 AbstractInterpreter]: Visited 50 different actions 50 times. Never merged. Never widened. Performed 2047 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2047 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 01:34:29,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:29,828 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 01:34:30,003 INFO L227 lantSequenceWeakener]: Weakened 74 states. On average, predicates are now at 96.79% of their original sizes. [2018-12-02 01:34:30,003 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 01:34:30,071 INFO L418 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2018-12-02 01:34:30,071 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 01:34:30,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 01:34:30,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-12-02 01:34:30,072 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:30,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-02 01:34:30,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-02 01:34:30,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-12-02 01:34:30,073 INFO L87 Difference]: Start difference. First operand 488 states and 571 transitions. Second operand 14 states. [2018-12-02 01:34:31,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:31,627 INFO L93 Difference]: Finished difference Result 1303 states and 1577 transitions. [2018-12-02 01:34:31,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-02 01:34:31,627 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 152 [2018-12-02 01:34:31,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:31,629 INFO L225 Difference]: With dead ends: 1303 [2018-12-02 01:34:31,630 INFO L226 Difference]: Without dead ends: 839 [2018-12-02 01:34:31,631 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-12-02 01:34:31,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2018-12-02 01:34:31,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 819. [2018-12-02 01:34:31,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2018-12-02 01:34:31,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 958 transitions. [2018-12-02 01:34:31,657 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 958 transitions. Word has length 152 [2018-12-02 01:34:31,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:31,657 INFO L480 AbstractCegarLoop]: Abstraction has 819 states and 958 transitions. [2018-12-02 01:34:31,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-02 01:34:31,658 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 958 transitions. [2018-12-02 01:34:31,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-02 01:34:31,659 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:31,660 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:31,660 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:31,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:31,660 INFO L82 PathProgramCache]: Analyzing trace with hash -741599736, now seen corresponding path program 1 times [2018-12-02 01:34:31,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:31,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:31,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:31,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:31,661 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 01:34:31,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:31,738 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:34:31,738 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-12-02 01:34:31,738 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [108], [110], [113], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [170], [172], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [287], [288], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-12-02 01:34:31,740 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:34:31,740 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:34:33,998 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 01:34:33,999 INFO L272 AbstractInterpreter]: Visited 132 different actions 1359 times. Merged at 20 different actions 112 times. Widened at 1 different actions 1 times. Performed 65546 root evaluator evaluations with a maximum evaluation depth of 5. Performed 65546 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 26 fixpoints after 6 different actions. Largest state had 132 variables. [2018-12-02 01:34:34,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:34,002 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 01:34:34,002 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:34,002 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 01:34:34,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:34,009 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 01:34:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:34,078 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:34:34,174 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-02 01:34:34,174 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 01:34:34,813 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 01:34:34,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 01:34:34,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 18 [2018-12-02 01:34:34,831 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:34,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 01:34:34,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 01:34:34,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-12-02 01:34:34,832 INFO L87 Difference]: Start difference. First operand 819 states and 958 transitions. Second operand 8 states. [2018-12-02 01:34:34,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:34,999 INFO L93 Difference]: Finished difference Result 1996 states and 2373 transitions. [2018-12-02 01:34:34,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 01:34:35,000 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 151 [2018-12-02 01:34:35,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:35,004 INFO L225 Difference]: With dead ends: 1996 [2018-12-02 01:34:35,004 INFO L226 Difference]: Without dead ends: 1201 [2018-12-02 01:34:35,007 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 283 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-12-02 01:34:35,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2018-12-02 01:34:35,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1198. [2018-12-02 01:34:35,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1198 states. [2018-12-02 01:34:35,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1391 transitions. [2018-12-02 01:34:35,054 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1391 transitions. Word has length 151 [2018-12-02 01:34:35,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:35,055 INFO L480 AbstractCegarLoop]: Abstraction has 1198 states and 1391 transitions. [2018-12-02 01:34:35,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 01:34:35,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1391 transitions. [2018-12-02 01:34:35,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-12-02 01:34:35,057 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:35,057 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:35,057 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:35,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:35,057 INFO L82 PathProgramCache]: Analyzing trace with hash -2118320924, now seen corresponding path program 1 times [2018-12-02 01:34:35,058 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:35,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:35,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:35,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:35,058 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:35,097 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 01:34:35,097 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:35,097 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:34:35,097 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-12-02 01:34:35,098 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-12-02 01:34:35,100 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:34:35,100 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:34:36,227 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 01:34:36,228 INFO L272 AbstractInterpreter]: Visited 127 different actions 846 times. Merged at 18 different actions 68 times. Never widened. Performed 32162 root evaluator evaluations with a maximum evaluation depth of 5. Performed 32162 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 13 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-02 01:34:36,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:36,229 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 01:34:36,229 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:36,229 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/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 [2018-12-02 01:34:36,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:36,237 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 01:34:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:36,309 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:34:36,393 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 01:34:36,393 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 01:34:36,595 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-02 01:34:36,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 01:34:36,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 10] total 19 [2018-12-02 01:34:36,610 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:36,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 01:34:36,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 01:34:36,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-12-02 01:34:36,611 INFO L87 Difference]: Start difference. First operand 1198 states and 1391 transitions. Second operand 11 states. [2018-12-02 01:34:37,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:37,296 INFO L93 Difference]: Finished difference Result 2251 states and 2852 transitions. [2018-12-02 01:34:37,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-02 01:34:37,296 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2018-12-02 01:34:37,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:37,302 INFO L225 Difference]: With dead ends: 2251 [2018-12-02 01:34:37,303 INFO L226 Difference]: Without dead ends: 1602 [2018-12-02 01:34:37,305 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 272 SyntacticMatches, 12 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2018-12-02 01:34:37,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2018-12-02 01:34:37,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1440. [2018-12-02 01:34:37,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2018-12-02 01:34:37,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1697 transitions. [2018-12-02 01:34:37,363 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1697 transitions. Word has length 147 [2018-12-02 01:34:37,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:37,363 INFO L480 AbstractCegarLoop]: Abstraction has 1440 states and 1697 transitions. [2018-12-02 01:34:37,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 01:34:37,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1697 transitions. [2018-12-02 01:34:37,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-12-02 01:34:37,365 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:37,366 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:37,366 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:37,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:37,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1693560222, now seen corresponding path program 1 times [2018-12-02 01:34:37,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:37,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:37,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:37,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:37,367 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:37,415 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 01:34:37,416 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:37,416 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:34:37,416 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-12-02 01:34:37,416 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-12-02 01:34:37,418 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:34:37,418 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:34:38,359 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 01:34:38,360 INFO L272 AbstractInterpreter]: Visited 122 different actions 650 times. Merged at 16 different actions 51 times. Never widened. Performed 28182 root evaluator evaluations with a maximum evaluation depth of 5. Performed 28182 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 7 fixpoints after 2 different actions. Largest state had 132 variables. [2018-12-02 01:34:38,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:38,362 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 01:34:38,362 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:38,362 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/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 [2018-12-02 01:34:38,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:38,367 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 01:34:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:38,424 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:34:38,439 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-02 01:34:38,440 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 01:34:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 01:34:38,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 01:34:38,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-02 01:34:38,576 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:38,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 01:34:38,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 01:34:38,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 01:34:38,577 INFO L87 Difference]: Start difference. First operand 1440 states and 1697 transitions. Second operand 6 states. [2018-12-02 01:34:38,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:38,669 INFO L93 Difference]: Finished difference Result 2940 states and 3566 transitions. [2018-12-02 01:34:38,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 01:34:38,670 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-12-02 01:34:38,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:38,675 INFO L225 Difference]: With dead ends: 2940 [2018-12-02 01:34:38,675 INFO L226 Difference]: Without dead ends: 1524 [2018-12-02 01:34:38,678 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 283 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 01:34:38,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2018-12-02 01:34:38,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1500. [2018-12-02 01:34:38,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1500 states. [2018-12-02 01:34:38,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1761 transitions. [2018-12-02 01:34:38,737 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1761 transitions. Word has length 143 [2018-12-02 01:34:38,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:38,737 INFO L480 AbstractCegarLoop]: Abstraction has 1500 states and 1761 transitions. [2018-12-02 01:34:38,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 01:34:38,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1761 transitions. [2018-12-02 01:34:38,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-12-02 01:34:38,739 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:38,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:38,739 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:38,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:38,740 INFO L82 PathProgramCache]: Analyzing trace with hash 74585308, now seen corresponding path program 1 times [2018-12-02 01:34:38,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:38,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:38,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:38,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:38,740 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:38,783 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 01:34:38,783 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:38,783 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:34:38,783 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-12-02 01:34:38,784 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-12-02 01:34:38,785 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:34:38,785 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:34:38,851 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 01:34:38,851 INFO L272 AbstractInterpreter]: Visited 52 different actions 52 times. Never merged. Never widened. Performed 1933 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1933 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 01:34:38,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:38,853 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 01:34:38,934 INFO L227 lantSequenceWeakener]: Weakened 62 states. On average, predicates are now at 96.57% of their original sizes. [2018-12-02 01:34:38,934 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 01:34:38,993 INFO L418 sIntCurrentIteration]: We unified 142 AI predicates to 142 [2018-12-02 01:34:38,994 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 01:34:38,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 01:34:38,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2018-12-02 01:34:38,994 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:38,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-02 01:34:38,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-02 01:34:38,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-12-02 01:34:38,995 INFO L87 Difference]: Start difference. First operand 1500 states and 1761 transitions. Second operand 14 states. [2018-12-02 01:34:39,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:39,874 INFO L93 Difference]: Finished difference Result 2756 states and 3245 transitions. [2018-12-02 01:34:39,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 01:34:39,874 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 143 [2018-12-02 01:34:39,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:39,877 INFO L225 Difference]: With dead ends: 2756 [2018-12-02 01:34:39,877 INFO L226 Difference]: Without dead ends: 1280 [2018-12-02 01:34:39,879 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2018-12-02 01:34:39,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2018-12-02 01:34:39,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1280. [2018-12-02 01:34:39,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1280 states. [2018-12-02 01:34:39,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1500 transitions. [2018-12-02 01:34:39,915 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1500 transitions. Word has length 143 [2018-12-02 01:34:39,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:39,916 INFO L480 AbstractCegarLoop]: Abstraction has 1280 states and 1500 transitions. [2018-12-02 01:34:39,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-02 01:34:39,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1500 transitions. [2018-12-02 01:34:39,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-12-02 01:34:39,918 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:39,918 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 01:34:39,918 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:39,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:39,918 INFO L82 PathProgramCache]: Analyzing trace with hash -819962258, now seen corresponding path program 1 times [2018-12-02 01:34:39,918 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:39,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:39,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:39,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:39,919 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:39,972 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-12-02 01:34:39,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:34:39,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 01:34:39,972 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:39,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 01:34:39,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 01:34:39,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 01:34:39,973 INFO L87 Difference]: Start difference. First operand 1280 states and 1500 transitions. Second operand 6 states. [2018-12-02 01:34:40,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:40,022 INFO L93 Difference]: Finished difference Result 2225 states and 2649 transitions. [2018-12-02 01:34:40,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 01:34:40,022 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2018-12-02 01:34:40,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:40,025 INFO L225 Difference]: With dead ends: 2225 [2018-12-02 01:34:40,025 INFO L226 Difference]: Without dead ends: 1300 [2018-12-02 01:34:40,027 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 01:34:40,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2018-12-02 01:34:40,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1300. [2018-12-02 01:34:40,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1300 states. [2018-12-02 01:34:40,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1520 transitions. [2018-12-02 01:34:40,063 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1520 transitions. Word has length 200 [2018-12-02 01:34:40,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:40,064 INFO L480 AbstractCegarLoop]: Abstraction has 1300 states and 1520 transitions. [2018-12-02 01:34:40,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 01:34:40,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1520 transitions. [2018-12-02 01:34:40,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-12-02 01:34:40,066 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:40,066 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:40,066 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:40,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:40,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1329435348, now seen corresponding path program 1 times [2018-12-02 01:34:40,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:40,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:40,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:40,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:40,067 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:40,161 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 43 proven. 11 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-12-02 01:34:40,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:40,162 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:34:40,162 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-12-02 01:34:40,162 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [243], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [283], [284], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318], [321], [322] [2018-12-02 01:34:40,164 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:34:40,164 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:34:41,045 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 01:34:41,045 INFO L272 AbstractInterpreter]: Visited 135 different actions 710 times. Merged at 22 different actions 74 times. Never widened. Performed 25854 root evaluator evaluations with a maximum evaluation depth of 5. Performed 25854 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 16 fixpoints after 5 different actions. Largest state had 132 variables. [2018-12-02 01:34:41,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:41,047 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 01:34:41,047 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:41,047 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 01:34:41,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:41,053 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 01:34:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:41,142 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:34:41,243 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 79 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 01:34:41,243 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 01:34:41,531 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 47 proven. 23 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-02 01:34:41,546 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 01:34:41,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2018-12-02 01:34:41,546 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 01:34:41,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-02 01:34:41,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-02 01:34:41,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2018-12-02 01:34:41,547 INFO L87 Difference]: Start difference. First operand 1300 states and 1520 transitions. Second operand 16 states. [2018-12-02 01:34:42,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:42,705 INFO L93 Difference]: Finished difference Result 3424 states and 4295 transitions. [2018-12-02 01:34:42,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-12-02 01:34:42,705 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 200 [2018-12-02 01:34:42,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:42,711 INFO L225 Difference]: With dead ends: 3424 [2018-12-02 01:34:42,711 INFO L226 Difference]: Without dead ends: 2475 [2018-12-02 01:34:42,714 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 393 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2018-12-02 01:34:42,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2018-12-02 01:34:42,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2182. [2018-12-02 01:34:42,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2182 states. [2018-12-02 01:34:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 2536 transitions. [2018-12-02 01:34:42,783 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 2536 transitions. Word has length 200 [2018-12-02 01:34:42,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:42,784 INFO L480 AbstractCegarLoop]: Abstraction has 2182 states and 2536 transitions. [2018-12-02 01:34:42,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-02 01:34:42,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 2536 transitions. [2018-12-02 01:34:42,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-12-02 01:34:42,786 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:42,786 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 01:34:42,786 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:42,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:42,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1907693870, now seen corresponding path program 1 times [2018-12-02 01:34:42,787 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:42,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:42,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:42,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:42,788 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:42,856 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-12-02 01:34:42,856 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:42,856 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:34:42,856 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-12-02 01:34:42,857 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [243], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [283], [284], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318], [321], [322] [2018-12-02 01:34:42,858 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:34:42,858 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:34:43,730 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 01:34:43,730 INFO L272 AbstractInterpreter]: Visited 134 different actions 719 times. Merged at 19 different actions 68 times. Never widened. Performed 26204 root evaluator evaluations with a maximum evaluation depth of 5. Performed 26204 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 13 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-02 01:34:43,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:43,732 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 01:34:43,732 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:43,732 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 01:34:43,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:43,759 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 01:34:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:43,818 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:34:43,866 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-02 01:34:43,867 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 01:34:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-12-02 01:34:44,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 01:34:44,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-12-02 01:34:44,017 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:44,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 01:34:44,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 01:34:44,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-02 01:34:44,017 INFO L87 Difference]: Start difference. First operand 2182 states and 2536 transitions. Second operand 6 states. [2018-12-02 01:34:44,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:44,078 INFO L93 Difference]: Finished difference Result 3819 states and 4484 transitions. [2018-12-02 01:34:44,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 01:34:44,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2018-12-02 01:34:44,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:44,083 INFO L225 Difference]: With dead ends: 3819 [2018-12-02 01:34:44,083 INFO L226 Difference]: Without dead ends: 1996 [2018-12-02 01:34:44,086 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 395 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-12-02 01:34:44,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2018-12-02 01:34:44,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1996. [2018-12-02 01:34:44,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1996 states. [2018-12-02 01:34:44,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2315 transitions. [2018-12-02 01:34:44,141 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2315 transitions. Word has length 200 [2018-12-02 01:34:44,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:44,142 INFO L480 AbstractCegarLoop]: Abstraction has 1996 states and 2315 transitions. [2018-12-02 01:34:44,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 01:34:44,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2315 transitions. [2018-12-02 01:34:44,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-12-02 01:34:44,144 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:44,144 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 01:34:44,144 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:44,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:44,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1278825688, now seen corresponding path program 1 times [2018-12-02 01:34:44,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:44,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:44,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:44,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:44,145 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:44,214 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-12-02 01:34:44,214 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:44,214 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:34:44,214 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-12-02 01:34:44,215 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [63], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-12-02 01:34:44,216 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:34:44,216 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:34:45,087 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 01:34:45,087 INFO L272 AbstractInterpreter]: Visited 128 different actions 673 times. Merged at 22 different actions 84 times. Never widened. Performed 26960 root evaluator evaluations with a maximum evaluation depth of 5. Performed 26960 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 10 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-02 01:34:45,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:45,089 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 01:34:45,089 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:45,089 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 01:34:45,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:45,114 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 01:34:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:45,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:34:45,223 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-12-02 01:34:45,224 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 01:34:45,416 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-12-02 01:34:45,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 01:34:45,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-02 01:34:45,432 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:45,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 01:34:45,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 01:34:45,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-02 01:34:45,432 INFO L87 Difference]: Start difference. First operand 1996 states and 2315 transitions. Second operand 5 states. [2018-12-02 01:34:45,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:45,462 INFO L93 Difference]: Finished difference Result 2749 states and 3176 transitions. [2018-12-02 01:34:45,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 01:34:45,462 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 262 [2018-12-02 01:34:45,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:45,462 INFO L225 Difference]: With dead ends: 2749 [2018-12-02 01:34:45,463 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 01:34:45,466 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 521 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-02 01:34:45,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 01:34:45,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 01:34:45,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 01:34:45,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 01:34:45,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 262 [2018-12-02 01:34:45,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:45,466 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 01:34:45,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 01:34:45,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 01:34:45,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 01:34:45,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 01:34:45,580 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,668 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,781 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,781 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,781 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,792 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:45,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:34:46,397 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 34 [2018-12-02 01:34:47,111 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 26 [2018-12-02 01:34:47,485 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 486 492) the Hoare annotation is: true [2018-12-02 01:34:47,486 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 486 492) no Hoare annotation was computed. [2018-12-02 01:34:47,486 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 493 501) no Hoare annotation was computed. [2018-12-02 01:34:47,486 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 493 501) the Hoare annotation is: true [2018-12-02 01:34:47,486 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 493 501) no Hoare annotation was computed. [2018-12-02 01:34:47,486 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 336 360) the Hoare annotation is: true [2018-12-02 01:34:47,486 INFO L444 ceAbstractionStarter]: At program point L350(line 350) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or (< ~waterLevel~0 2) .cse0))) [2018-12-02 01:34:47,486 INFO L448 ceAbstractionStarter]: For program point L348(lines 348 354) no Hoare annotation was computed. [2018-12-02 01:34:47,486 INFO L444 ceAbstractionStarter]: At program point L346(line 346) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or (< ~waterLevel~0 2) .cse0))) [2018-12-02 01:34:47,486 INFO L448 ceAbstractionStarter]: For program point L346-1(line 346) no Hoare annotation was computed. [2018-12-02 01:34:47,486 INFO L448 ceAbstractionStarter]: For program point L344(lines 344 357) no Hoare annotation was computed. [2018-12-02 01:34:47,486 INFO L448 ceAbstractionStarter]: For program point L344-1(lines 336 360) no Hoare annotation was computed. [2018-12-02 01:34:47,486 INFO L451 ceAbstractionStarter]: At program point L342(line 342) the Hoare annotation is: true [2018-12-02 01:34:47,486 INFO L448 ceAbstractionStarter]: For program point L342-1(line 342) no Hoare annotation was computed. [2018-12-02 01:34:47,486 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 336 360) no Hoare annotation was computed. [2018-12-02 01:34:47,486 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 575 597) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 01:34:47,486 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 575 597) no Hoare annotation was computed. [2018-12-02 01:34:47,486 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 575 597) no Hoare annotation was computed. [2018-12-02 01:34:47,487 INFO L444 ceAbstractionStarter]: At program point L587(line 587) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 01:34:47,487 INFO L444 ceAbstractionStarter]: At program point L587-1(line 587) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 01:34:47,487 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 592) no Hoare annotation was computed. [2018-12-02 01:34:47,487 INFO L448 ceAbstractionStarter]: For program point L585-1(lines 585 592) no Hoare annotation was computed. [2018-12-02 01:34:47,487 INFO L448 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2018-12-02 01:34:47,487 INFO L444 ceAbstractionStarter]: At program point L582(line 582) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 01:34:47,487 INFO L444 ceAbstractionStarter]: At program point L581(line 581) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 01:34:47,487 INFO L444 ceAbstractionStarter]: At program point L581-1(line 581) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 01:34:47,487 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 250 258) no Hoare annotation was computed. [2018-12-02 01:34:47,487 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 250 258) the Hoare annotation is: true [2018-12-02 01:34:47,487 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 250 258) no Hoare annotation was computed. [2018-12-02 01:34:47,487 INFO L451 ceAbstractionStarter]: At program point L321(line 321) the Hoare annotation is: true [2018-12-02 01:34:47,487 INFO L448 ceAbstractionStarter]: For program point L323-2(lines 323 327) no Hoare annotation was computed. [2018-12-02 01:34:47,487 INFO L448 ceAbstractionStarter]: For program point L321-1(line 321) no Hoare annotation was computed. [2018-12-02 01:34:47,487 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 314 332) the Hoare annotation is: true [2018-12-02 01:34:47,487 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 314 332) no Hoare annotation was computed. [2018-12-02 01:34:47,487 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 327) no Hoare annotation was computed. [2018-12-02 01:34:47,487 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 314 332) no Hoare annotation was computed. [2018-12-02 01:34:47,487 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 479 485) no Hoare annotation was computed. [2018-12-02 01:34:47,487 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 479 485) the Hoare annotation is: true [2018-12-02 01:34:47,488 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 565 574) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 565 574) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 565 574) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 239 249) the Hoare annotation is: true [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 239 249) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 239 249) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L451 ceAbstractionStarter]: At program point L244(line 244) the Hoare annotation is: true [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point L244-1(line 244) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 231 238) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1))) [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 231 238) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 231 238) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point L445(lines 445 451) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 441 454) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 441 454) the Hoare annotation is: true [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 441 454) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L444 ceAbstractionStarter]: At program point L190(line 190) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (<= 1 processEnvironment_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point L188(lines 188 196) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L444 ceAbstractionStarter]: At program point L186(line 186) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point L186-1(line 186) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point L184(lines 184 201) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 180 204) no Hoare annotation was computed. [2018-12-02 01:34:47,488 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 180 204) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 01:34:47,489 INFO L444 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1))) [2018-12-02 01:34:47,489 INFO L448 ceAbstractionStarter]: For program point L199-1(lines 180 204) no Hoare annotation was computed. [2018-12-02 01:34:47,489 INFO L444 ceAbstractionStarter]: At program point L194(line 194) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 01:34:47,489 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 146 152) no Hoare annotation was computed. [2018-12-02 01:34:47,489 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 146 152) the Hoare annotation is: true [2018-12-02 01:34:47,489 INFO L444 ceAbstractionStarter]: At program point L97(lines 54 99) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 01:34:47,489 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 70) no Hoare annotation was computed. [2018-12-02 01:34:47,489 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 44 107) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 01:34:47,489 INFO L448 ceAbstractionStarter]: For program point L64-1(lines 64 70) no Hoare annotation was computed. [2018-12-02 01:34:47,489 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2018-12-02 01:34:47,489 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 44 107) no Hoare annotation was computed. [2018-12-02 01:34:47,489 INFO L444 ceAbstractionStarter]: At program point L100(lines 53 101) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 01:34:47,489 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2018-12-02 01:34:47,489 INFO L444 ceAbstractionStarter]: At program point L90-2(lines 84 95) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 01:34:47,489 INFO L448 ceAbstractionStarter]: For program point L55(lines 54 99) no Hoare annotation was computed. [2018-12-02 01:34:47,489 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 95) no Hoare annotation was computed. [2018-12-02 01:34:47,489 INFO L444 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 01:34:47,489 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 80) no Hoare annotation was computed. [2018-12-02 01:34:47,489 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 44 107) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L444 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 01:34:47,490 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 205 212) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)))) [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 205 212) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 205 212) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 455 463) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 455 463) the Hoare annotation is: true [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 455 463) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L444 ceAbstractionStarter]: At program point L225(line 225) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point L225-1(lines 214 230) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point L221(lines 221 227) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 214 230) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L444 ceAbstractionStarter]: At program point L219(line 219) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point L219-1(line 219) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 214 230) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-02 01:34:47,490 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 432 440) the Hoare annotation is: true [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 432 440) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 432 440) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 295 313) no Hoare annotation was computed. [2018-12-02 01:34:47,490 INFO L448 ceAbstractionStarter]: For program point L304(lines 304 308) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L451 ceAbstractionStarter]: At program point L302(line 302) the Hoare annotation is: true [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point L304-2(lines 304 308) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point L302-1(line 302) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 295 313) the Hoare annotation is: true [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 295 313) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 388 399) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or (< |old(~methaneLevelCritical~0)| 1) .cse0 (< ~waterLevel~0 1) .cse1 (<= 1 ~methaneLevelCritical~0)) (or .cse0 .cse2 .cse1 (not (= ~waterLevel~0 1)) .cse3) (or .cse2 .cse1 .cse3 (not (= ~waterLevel~0 2))))) [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point L392-1(lines 388 399) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 388 399) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 400 408) the Hoare annotation is: true [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 400 408) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 400 408) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L451 ceAbstractionStarter]: At program point L514-2(lines 514 528) the Hoare annotation is: true [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 504 533) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L451 ceAbstractionStarter]: At program point L510(line 510) the Hoare annotation is: true [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point L510-1(line 510) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 504 533) the Hoare annotation is: true [2018-12-02 01:34:47,491 INFO L451 ceAbstractionStarter]: At program point L529(lines 504 533) the Hoare annotation is: true [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point L525(line 525) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 522) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L451 ceAbstractionStarter]: At program point L518-1(lines 518 522) the Hoare annotation is: true [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-02 01:34:47,491 INFO L444 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (or (< |old(~waterLevel~0)| 2) .cse0) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse0))) [2018-12-02 01:34:47,491 INFO L448 ceAbstractionStarter]: For program point L126(lines 125 144) no Hoare annotation was computed. [2018-12-02 01:34:47,492 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 122 145) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse1 .cse0))) [2018-12-02 01:34:47,492 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 122 145) no Hoare annotation was computed. [2018-12-02 01:34:47,492 INFO L444 ceAbstractionStarter]: At program point L135(line 135) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse1)) (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse1) (or (< |old(~waterLevel~0)| 2) .cse0)))) [2018-12-02 01:34:47,492 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 122 145) no Hoare annotation was computed. [2018-12-02 01:34:47,492 INFO L444 ceAbstractionStarter]: At program point L133(lines 133 139) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (= ~systemActive~0 1))) (let ((.cse3 (and (<= 2 ~waterLevel~0) .cse4 .cse5)) (.cse2 (= 0 ~pumpRunning~0)) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse1 (not .cse5))) (and (or (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) .cse2) (or (not (= 0 |old(~pumpRunning~0)|)) .cse3 (< |old(~waterLevel~0)| 1) .cse1 (and .cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse3 (and .cse2 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (or .cse0 .cse1))))) [2018-12-02 01:34:47,492 INFO L448 ceAbstractionStarter]: For program point L368-1(lines 364 375) no Hoare annotation was computed. [2018-12-02 01:34:47,492 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 364 375) the Hoare annotation is: (or (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1))) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-12-02 01:34:47,492 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 364 375) no Hoare annotation was computed. [2018-12-02 01:34:47,492 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 558 564) no Hoare annotation was computed. [2018-12-02 01:34:47,492 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 558 564) the Hoare annotation is: true [2018-12-02 01:34:47,492 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 01:34:47,492 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-12-02 01:34:47,492 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 01:34:47,492 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 01:34:47,492 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 154 178) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-02 01:34:47,492 INFO L444 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-02 01:34:47,492 INFO L448 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2018-12-02 01:34:47,492 INFO L448 ceAbstractionStarter]: For program point L158(lines 158 175) no Hoare annotation was computed. [2018-12-02 01:34:47,492 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 154 178) no Hoare annotation was computed. [2018-12-02 01:34:47,492 INFO L444 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 01:34:47,492 INFO L448 ceAbstractionStarter]: For program point L173-1(lines 154 178) no Hoare annotation was computed. [2018-12-02 01:34:47,493 INFO L444 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: (or (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 01:34:47,493 INFO L444 ceAbstractionStarter]: At program point L164(line 164) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 01:34:47,493 INFO L448 ceAbstractionStarter]: For program point L162(lines 162 170) no Hoare annotation was computed. [2018-12-02 01:34:47,493 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 376 387) no Hoare annotation was computed. [2018-12-02 01:34:47,493 INFO L448 ceAbstractionStarter]: For program point L380-1(lines 376 387) no Hoare annotation was computed. [2018-12-02 01:34:47,493 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 376 387) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (< |old(~waterLevel~0)| 2)) (or (< |old(~waterLevel~0)| 1) .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1)))) [2018-12-02 01:34:47,493 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 965 972) no Hoare annotation was computed. [2018-12-02 01:34:47,493 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 965 972) the Hoare annotation is: true [2018-12-02 01:34:47,493 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2018-12-02 01:34:47,493 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 965 972) no Hoare annotation was computed. [2018-12-02 01:34:47,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:34:47 BoogieIcfgContainer [2018-12-02 01:34:47,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 01:34:47,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 01:34:47,500 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 01:34:47,500 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 01:34:47,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:34:28" (3/4) ... [2018-12-02 01:34:47,503 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 01:34:47,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-02 01:34:47,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-02 01:34:47,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-02 01:34:47,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 01:34:47,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-02 01:34:47,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-02 01:34:47,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-02 01:34:47,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-02 01:34:47,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-02 01:34:47,507 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 01:34:47,508 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-02 01:34:47,508 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-02 01:34:47,512 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-12-02 01:34:47,512 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-02 01:34:47,512 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-02 01:34:47,512 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-02 01:34:47,512 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 01:34:47,513 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 01:34:47,530 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (2 <= waterLevel && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-02 01:34:47,530 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-02 01:34:47,552 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d0c50a39-eabf-4c80-b6fa-810e0dbfc3b6/bin-2019/utaipan/witness.graphml [2018-12-02 01:34:47,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 01:34:47,553 INFO L168 Benchmark]: Toolchain (without parser) took 20150.44 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.3 GB). Free memory was 947.2 MB in the beginning and 975.7 MB in the end (delta: -28.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. [2018-12-02 01:34:47,553 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 01:34:47,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 947.2 MB in the beginning and 1.1 GB in the end (delta: -140.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-12-02 01:34:47,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 01:34:47,554 INFO L168 Benchmark]: Boogie Preprocessor took 21.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 01:34:47,554 INFO L168 Benchmark]: RCFGBuilder took 319.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 11.5 GB. [2018-12-02 01:34:47,554 INFO L168 Benchmark]: TraceAbstraction took 19453.42 ms. Allocated memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 33.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. [2018-12-02 01:34:47,554 INFO L168 Benchmark]: Witness Printer took 52.57 ms. Allocated memory is still 2.3 GB. Free memory was 1.0 GB in the beginning and 975.7 MB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-12-02 01:34:47,555 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 947.2 MB in the beginning and 1.1 GB in the end (delta: -140.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 319.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19453.42 ms. Allocated memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 33.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. * Witness Printer took 52.57 ms. Allocated memory is still 2.3 GB. Free memory was 1.0 GB in the beginning and 975.7 MB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 969]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (2 <= waterLevel && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 156 locations, 1 error locations. SAFE Result, 19.4s OverallTime, 14 OverallIterations, 4 TraceHistogramMax, 5.5s AutomataDifference, 0.0s DeadEndRemovalTime, 2.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2647 SDtfs, 2936 SDslu, 7332 SDs, 0 SdLazy, 4242 SolverSat, 1380 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2641 GetRequests, 2439 SyntacticMatches, 33 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2182occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.2s AbstIntTime, 8 AbstIntIterations, 2 AbstIntStrong, 0.9982149322355278 AbsIntWeakeningRatio, 0.8976109215017065 AbsIntAvgWeakeningVarsNumRemoved, 52.153583617747444 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 530 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 64 LocationsWithAnnotation, 4767 PreInvPairs, 4872 NumberOfFragments, 1040 HoareAnnotationTreeSize, 4767 FomulaSimplifications, 5414 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 64 FomulaSimplificationsInter, 15999 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 2987 NumberOfCodeBlocks, 2987 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 4064 ConstructedInterpolants, 0 QuantifiedInterpolants, 950838 SizeOfPredicates, 25 NumberOfNonLiveVariables, 5571 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 26 InterpolantComputations, 11 PerfectInterpolantSequences, 1518/1611 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...