./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product46_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product46_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/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 e7c5f28f8e853ca099a40c34c7e85dac8d6464b4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:50:44,821 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:50:44,822 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:50:44,830 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:50:44,830 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:50:44,831 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:50:44,832 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:50:44,833 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:50:44,834 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:50:44,835 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:50:44,835 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:50:44,835 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:50:44,836 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:50:44,837 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:50:44,837 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:50:44,838 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:50:44,838 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:50:44,839 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:50:44,841 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:50:44,842 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:50:44,842 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:50:44,843 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:50:44,845 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:50:44,845 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:50:44,845 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:50:44,846 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:50:44,847 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:50:44,848 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:50:44,848 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:50:44,849 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:50:44,849 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:50:44,850 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:50:44,850 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:50:44,850 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:50:44,851 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:50:44,851 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:50:44,852 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:50:44,862 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:50:44,862 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:50:44,862 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:50:44,863 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:50:44,863 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:50:44,863 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:50:44,863 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:50:44,863 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:50:44,863 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:50:44,864 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:50:44,864 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:50:44,864 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:50:44,865 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:50:44,865 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:50:44,865 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:50:44,865 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:50:44,866 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:50:44,866 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:50:44,866 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:50:44,866 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:50:44,866 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:50:44,866 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:50:44,866 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:50:44,866 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:50:44,867 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:50:44,867 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:50:44,867 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:50:44,867 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:50:44,867 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:50:44,867 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:50:44,868 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:50:44,868 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:50:44,868 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:50:44,868 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:50:44,868 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:50:44,868 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:50:44,868 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:50:44,868 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_239b2d35-c3cd-475f-9c2f-cff8d29691e0/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 -> e7c5f28f8e853ca099a40c34c7e85dac8d6464b4 [2018-11-18 12:50:44,890 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:50:44,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:50:44,902 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:50:44,904 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:50:44,904 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:50:44,904 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product46_true-unreach-call_false-termination.cil.c [2018-11-18 12:50:44,950 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/data/d42a4b270/49200abe40c8436cbf9af5da911a3a68/FLAG15c2f1b1d [2018-11-18 12:50:45,308 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:50:45,309 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/sv-benchmarks/c/product-lines/minepump_spec1_product46_true-unreach-call_false-termination.cil.c [2018-11-18 12:50:45,317 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/data/d42a4b270/49200abe40c8436cbf9af5da911a3a68/FLAG15c2f1b1d [2018-11-18 12:50:45,708 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/data/d42a4b270/49200abe40c8436cbf9af5da911a3a68 [2018-11-18 12:50:45,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:50:45,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:50:45,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:50:45,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:50:45,714 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:50:45,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:50:45" (1/1) ... [2018-11-18 12:50:45,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37764a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:45, skipping insertion in model container [2018-11-18 12:50:45,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:50:45" (1/1) ... [2018-11-18 12:50:45,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:50:45,753 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:50:45,950 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:50:45,958 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:50:46,065 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:50:46,082 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:50:46,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:46 WrapperNode [2018-11-18 12:50:46,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:50:46,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:50:46,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:50:46,083 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:50:46,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:46" (1/1) ... [2018-11-18 12:50:46,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:46" (1/1) ... [2018-11-18 12:50:46,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:50:46,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:50:46,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:50:46,109 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:50:46,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:46" (1/1) ... [2018-11-18 12:50:46,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:46" (1/1) ... [2018-11-18 12:50:46,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:46" (1/1) ... [2018-11-18 12:50:46,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:46" (1/1) ... [2018-11-18 12:50:46,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:46" (1/1) ... [2018-11-18 12:50:46,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:46" (1/1) ... [2018-11-18 12:50:46,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:46" (1/1) ... [2018-11-18 12:50:46,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:50:46,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:50:46,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:50:46,141 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:50:46,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:50:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 12:50:46,191 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 12:50:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:50:46,191 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:50:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:50:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 12:50:46,191 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 12:50:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 12:50:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 12:50:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 12:50:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 12:50:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 12:50:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 12:50:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 12:50:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 12:50:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 12:50:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 12:50:46,193 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 12:50:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 12:50:46,193 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 12:50:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 12:50:46,193 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 12:50:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 12:50:46,193 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 12:50:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 12:50:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 12:50:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 12:50:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-18 12:50:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-18 12:50:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 12:50:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 12:50:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 12:50:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 12:50:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 12:50:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 12:50:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 12:50:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 12:50:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 12:50:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 12:50:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 12:50:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 12:50:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 12:50:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 12:50:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 12:50:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 12:50:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-11-18 12:50:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-11-18 12:50:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:50:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:50:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 12:50:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 12:50:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 12:50:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 12:50:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:50:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:50:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-11-18 12:50:46,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-11-18 12:50:46,619 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:50:46,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:50:46 BoogieIcfgContainer [2018-11-18 12:50:46,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:50:46,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:50:46,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:50:46,623 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:50:46,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:50:45" (1/3) ... [2018-11-18 12:50:46,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49412361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:50:46, skipping insertion in model container [2018-11-18 12:50:46,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:46" (2/3) ... [2018-11-18 12:50:46,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49412361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:50:46, skipping insertion in model container [2018-11-18 12:50:46,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:50:46" (3/3) ... [2018-11-18 12:50:46,626 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product46_true-unreach-call_false-termination.cil.c [2018-11-18 12:50:46,634 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:50:46,641 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:50:46,653 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:50:46,675 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:50:46,675 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:50:46,675 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:50:46,675 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:50:46,675 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:50:46,676 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:50:46,676 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:50:46,676 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:50:46,692 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2018-11-18 12:50:46,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 12:50:46,699 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:46,700 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:50:46,702 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:46,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:46,707 INFO L82 PathProgramCache]: Analyzing trace with hash 77671679, now seen corresponding path program 1 times [2018-11-18 12:50:46,708 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:46,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:46,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:46,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:46,744 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:50:46,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:50:46,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:50:46,918 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:46,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:50:46,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:50:46,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:50:46,931 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2018-11-18 12:50:46,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:46,955 INFO L93 Difference]: Finished difference Result 272 states and 337 transitions. [2018-11-18 12:50:46,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:50:46,956 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 12:50:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:46,966 INFO L225 Difference]: With dead ends: 272 [2018-11-18 12:50:46,966 INFO L226 Difference]: Without dead ends: 136 [2018-11-18 12:50:46,969 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:50:46,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-11-18 12:50:47,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-11-18 12:50:47,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-11-18 12:50:47,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 160 transitions. [2018-11-18 12:50:47,009 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 160 transitions. Word has length 46 [2018-11-18 12:50:47,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:47,009 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 160 transitions. [2018-11-18 12:50:47,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:50:47,009 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 160 transitions. [2018-11-18 12:50:47,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 12:50:47,011 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:47,011 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:50:47,011 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:47,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:47,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1417796806, now seen corresponding path program 1 times [2018-11-18 12:50:47,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:47,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:47,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:47,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:47,012 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:47,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:50:47,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:50:47,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:50:47,099 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:47,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:50:47,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:50:47,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:50:47,102 INFO L87 Difference]: Start difference. First operand 136 states and 160 transitions. Second operand 3 states. [2018-11-18 12:50:47,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:47,120 INFO L93 Difference]: Finished difference Result 215 states and 253 transitions. [2018-11-18 12:50:47,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:50:47,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 12:50:47,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:47,122 INFO L225 Difference]: With dead ends: 215 [2018-11-18 12:50:47,122 INFO L226 Difference]: Without dead ends: 126 [2018-11-18 12:50:47,123 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:50:47,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-11-18 12:50:47,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-11-18 12:50:47,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-11-18 12:50:47,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2018-11-18 12:50:47,134 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 48 [2018-11-18 12:50:47,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:47,135 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2018-11-18 12:50:47,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:50:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2018-11-18 12:50:47,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 12:50:47,137 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:47,137 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:50:47,137 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:47,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:47,137 INFO L82 PathProgramCache]: Analyzing trace with hash 2066543372, now seen corresponding path program 1 times [2018-11-18 12:50:47,137 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:47,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:47,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:47,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:47,139 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:47,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:50:47,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:50:47,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:50:47,296 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:47,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:50:47,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:50:47,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:50:47,297 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 7 states. [2018-11-18 12:50:47,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:47,616 INFO L93 Difference]: Finished difference Result 228 states and 271 transitions. [2018-11-18 12:50:47,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:50:47,616 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2018-11-18 12:50:47,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:47,617 INFO L225 Difference]: With dead ends: 228 [2018-11-18 12:50:47,618 INFO L226 Difference]: Without dead ends: 126 [2018-11-18 12:50:47,618 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:50:47,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-11-18 12:50:47,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-11-18 12:50:47,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-11-18 12:50:47,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 146 transitions. [2018-11-18 12:50:47,629 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 146 transitions. Word has length 53 [2018-11-18 12:50:47,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:47,629 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 146 transitions. [2018-11-18 12:50:47,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:50:47,630 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 146 transitions. [2018-11-18 12:50:47,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 12:50:47,631 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:47,632 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:50:47,636 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:47,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:47,636 INFO L82 PathProgramCache]: Analyzing trace with hash -9481001, now seen corresponding path program 1 times [2018-11-18 12:50:47,636 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:47,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:47,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:47,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:47,638 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:47,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:50:47,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:50:47,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 12:50:47,714 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:47,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 12:50:47,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:50:47,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:50:47,715 INFO L87 Difference]: Start difference. First operand 126 states and 146 transitions. Second operand 5 states. [2018-11-18 12:50:48,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:48,046 INFO L93 Difference]: Finished difference Result 336 states and 404 transitions. [2018-11-18 12:50:48,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:50:48,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2018-11-18 12:50:48,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:48,048 INFO L225 Difference]: With dead ends: 336 [2018-11-18 12:50:48,048 INFO L226 Difference]: Without dead ends: 234 [2018-11-18 12:50:48,049 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:50:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-11-18 12:50:48,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 214. [2018-11-18 12:50:48,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-11-18 12:50:48,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 243 transitions. [2018-11-18 12:50:48,069 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 243 transitions. Word has length 66 [2018-11-18 12:50:48,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:48,069 INFO L480 AbstractCegarLoop]: Abstraction has 214 states and 243 transitions. [2018-11-18 12:50:48,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 12:50:48,069 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 243 transitions. [2018-11-18 12:50:48,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-11-18 12:50:48,071 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:48,071 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:50:48,072 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:48,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:48,072 INFO L82 PathProgramCache]: Analyzing trace with hash -269532413, now seen corresponding path program 1 times [2018-11-18 12:50:48,072 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:48,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:48,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:48,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:48,073 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:48,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:50:48,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:50:48,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:50:48,163 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:48,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:50:48,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:50:48,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:50:48,164 INFO L87 Difference]: Start difference. First operand 214 states and 243 transitions. Second operand 6 states. [2018-11-18 12:50:48,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:48,399 INFO L93 Difference]: Finished difference Result 579 states and 679 transitions. [2018-11-18 12:50:48,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:50:48,403 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2018-11-18 12:50:48,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:48,406 INFO L225 Difference]: With dead ends: 579 [2018-11-18 12:50:48,406 INFO L226 Difference]: Without dead ends: 389 [2018-11-18 12:50:48,407 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:50:48,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2018-11-18 12:50:48,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 383. [2018-11-18 12:50:48,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-11-18 12:50:48,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 436 transitions. [2018-11-18 12:50:48,434 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 436 transitions. Word has length 80 [2018-11-18 12:50:48,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:48,434 INFO L480 AbstractCegarLoop]: Abstraction has 383 states and 436 transitions. [2018-11-18 12:50:48,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:50:48,434 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 436 transitions. [2018-11-18 12:50:48,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 12:50:48,436 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:48,436 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:50:48,436 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:48,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:48,436 INFO L82 PathProgramCache]: Analyzing trace with hash 151645383, now seen corresponding path program 1 times [2018-11-18 12:50:48,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:48,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:48,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:48,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:48,437 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:48,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:50:48,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:50:48,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:50:48,550 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:48,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:50:48,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:50:48,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:50:48,551 INFO L87 Difference]: Start difference. First operand 383 states and 436 transitions. Second operand 7 states. [2018-11-18 12:50:49,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:49,132 INFO L93 Difference]: Finished difference Result 420 states and 492 transitions. [2018-11-18 12:50:49,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:50:49,132 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2018-11-18 12:50:49,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:49,134 INFO L225 Difference]: With dead ends: 420 [2018-11-18 12:50:49,135 INFO L226 Difference]: Without dead ends: 417 [2018-11-18 12:50:49,135 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-18 12:50:49,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2018-11-18 12:50:49,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 383. [2018-11-18 12:50:49,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-11-18 12:50:49,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 435 transitions. [2018-11-18 12:50:49,161 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 435 transitions. Word has length 84 [2018-11-18 12:50:49,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:49,161 INFO L480 AbstractCegarLoop]: Abstraction has 383 states and 435 transitions. [2018-11-18 12:50:49,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:50:49,161 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 435 transitions. [2018-11-18 12:50:49,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-18 12:50:49,163 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:49,163 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 12:50:49,163 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:49,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:49,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1349966712, now seen corresponding path program 1 times [2018-11-18 12:50:49,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:49,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:49,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:49,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:49,164 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:49,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 12:50:49,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:50:49,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:50:49,222 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:49,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:50:49,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:50:49,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:50:49,223 INFO L87 Difference]: Start difference. First operand 383 states and 435 transitions. Second operand 6 states. [2018-11-18 12:50:49,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:49,258 INFO L93 Difference]: Finished difference Result 756 states and 878 transitions. [2018-11-18 12:50:49,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:50:49,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2018-11-18 12:50:49,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:49,260 INFO L225 Difference]: With dead ends: 756 [2018-11-18 12:50:49,261 INFO L226 Difference]: Without dead ends: 397 [2018-11-18 12:50:49,261 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:50:49,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2018-11-18 12:50:49,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 393. [2018-11-18 12:50:49,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2018-11-18 12:50:49,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 445 transitions. [2018-11-18 12:50:49,280 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 445 transitions. Word has length 100 [2018-11-18 12:50:49,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:49,280 INFO L480 AbstractCegarLoop]: Abstraction has 393 states and 445 transitions. [2018-11-18 12:50:49,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:50:49,280 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 445 transitions. [2018-11-18 12:50:49,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-18 12:50:49,281 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:49,282 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 12:50:49,282 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:49,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:49,282 INFO L82 PathProgramCache]: Analyzing trace with hash -2051514246, now seen corresponding path program 1 times [2018-11-18 12:50:49,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:49,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:49,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:49,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:49,283 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:49,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 12:50:49,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:50:49,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 12:50:49,363 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:49,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 12:50:49,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 12:50:49,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:50:49,364 INFO L87 Difference]: Start difference. First operand 393 states and 445 transitions. Second operand 8 states. [2018-11-18 12:50:49,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:49,389 INFO L93 Difference]: Finished difference Result 776 states and 900 transitions. [2018-11-18 12:50:49,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:50:49,390 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 100 [2018-11-18 12:50:49,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:49,392 INFO L225 Difference]: With dead ends: 776 [2018-11-18 12:50:49,392 INFO L226 Difference]: Without dead ends: 407 [2018-11-18 12:50:49,393 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:50:49,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2018-11-18 12:50:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 401. [2018-11-18 12:50:49,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2018-11-18 12:50:49,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 453 transitions. [2018-11-18 12:50:49,407 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 453 transitions. Word has length 100 [2018-11-18 12:50:49,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:49,407 INFO L480 AbstractCegarLoop]: Abstraction has 401 states and 453 transitions. [2018-11-18 12:50:49,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 12:50:49,407 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 453 transitions. [2018-11-18 12:50:49,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-18 12:50:49,409 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:49,409 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 12:50:49,409 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:49,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:49,409 INFO L82 PathProgramCache]: Analyzing trace with hash -2059273605, now seen corresponding path program 1 times [2018-11-18 12:50:49,409 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:49,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:49,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:49,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:49,410 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:49,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 12:50:49,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:50:49,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 12:50:49,489 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:49,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:50:49,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:50:49,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:50:49,490 INFO L87 Difference]: Start difference. First operand 401 states and 453 transitions. Second operand 4 states. [2018-11-18 12:50:49,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:49,645 INFO L93 Difference]: Finished difference Result 1193 states and 1416 transitions. [2018-11-18 12:50:49,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:50:49,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 100 [2018-11-18 12:50:49,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:49,649 INFO L225 Difference]: With dead ends: 1193 [2018-11-18 12:50:49,649 INFO L226 Difference]: Without dead ends: 816 [2018-11-18 12:50:49,650 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:50:49,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2018-11-18 12:50:49,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 801. [2018-11-18 12:50:49,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 801 states. [2018-11-18 12:50:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 931 transitions. [2018-11-18 12:50:49,677 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 931 transitions. Word has length 100 [2018-11-18 12:50:49,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:49,677 INFO L480 AbstractCegarLoop]: Abstraction has 801 states and 931 transitions. [2018-11-18 12:50:49,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:50:49,678 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 931 transitions. [2018-11-18 12:50:49,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-18 12:50:49,679 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:49,680 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 12:50:49,680 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:49,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:49,680 INFO L82 PathProgramCache]: Analyzing trace with hash -2055283487, now seen corresponding path program 1 times [2018-11-18 12:50:49,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:49,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:49,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:49,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:49,681 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:49,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 12:50:49,781 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:50:49,781 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:50:49,781 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 105 with the following transitions: [2018-11-18 12:50:49,783 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [36], [37], [38], [39], [42], [44], [45], [48], [52], [53], [54], [69], [72], [74], [78], [84], [88], [92], [95], [100], [103], [108], [114], [117], [127], [128], [129], [130], [131], [133], [138], [141], [142], [144], [149], [151], [152], [157], [159], [160], [161], [194], [198], [212], [220], [224], [225], [228], [230], [233], [235], [238], [247], [248], [249], [250], [251], [252], [253], [254], [255], [257], [258], [259], [260], [265], [267], [268], [275], [276], [277], [278], [279], [280], [283], [287], [288], [289], [290], [291], [292], [299], [300], [301], [303], [304], [305], [307], [308], [309], [310], [311] [2018-11-18 12:50:49,809 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:50:49,809 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:50:50,235 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 12:50:50,236 INFO L272 AbstractInterpreter]: Visited 78 different actions 78 times. Never merged. Never widened. Performed 2517 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2517 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 12:50:50,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:50,252 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 12:50:50,512 INFO L227 lantSequenceWeakener]: Weakened 76 states. On average, predicates are now at 97.24% of their original sizes. [2018-11-18 12:50:50,513 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 12:50:50,636 INFO L415 sIntCurrentIteration]: We unified 103 AI predicates to 103 [2018-11-18 12:50:50,636 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 12:50:50,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:50:50,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [13] total 29 [2018-11-18 12:50:50,637 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:50,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 12:50:50,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 12:50:50,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-11-18 12:50:50,638 INFO L87 Difference]: Start difference. First operand 801 states and 931 transitions. Second operand 18 states. [2018-11-18 12:50:54,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:54,231 INFO L93 Difference]: Finished difference Result 1775 states and 2096 transitions. [2018-11-18 12:50:54,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 12:50:54,231 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 104 [2018-11-18 12:50:54,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:54,235 INFO L225 Difference]: With dead ends: 1775 [2018-11-18 12:50:54,235 INFO L226 Difference]: Without dead ends: 998 [2018-11-18 12:50:54,238 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 113 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2018-11-18 12:50:54,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2018-11-18 12:50:54,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 994. [2018-11-18 12:50:54,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 994 states. [2018-11-18 12:50:54,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1128 transitions. [2018-11-18 12:50:54,287 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1128 transitions. Word has length 104 [2018-11-18 12:50:54,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:54,287 INFO L480 AbstractCegarLoop]: Abstraction has 994 states and 1128 transitions. [2018-11-18 12:50:54,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 12:50:54,287 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1128 transitions. [2018-11-18 12:50:54,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-18 12:50:54,291 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:54,291 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:50:54,291 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:54,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:54,291 INFO L82 PathProgramCache]: Analyzing trace with hash -819170510, now seen corresponding path program 1 times [2018-11-18 12:50:54,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:54,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:54,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:54,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:54,292 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:54,360 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 12:50:54,361 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:50:54,361 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:50:54,361 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-11-18 12:50:54,361 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [33], [36], [37], [38], [39], [42], [44], [45], [48], [52], [53], [54], [57], [59], [65], [69], [72], [73], [74], [78], [84], [88], [92], [95], [98], [100], [103], [106], [108], [114], [117], [127], [128], [129], [130], [131], [133], [138], [141], [142], [144], [149], [151], [152], [157], [159], [160], [161], [191], [194], [198], [204], [209], [211], [212], [220], [224], [225], [228], [230], [233], [235], [238], [244], [246], [247], [248], [249], [250], [251], [252], [253], [254], [255], [257], [258], [259], [260], [263], [264], [265], [267], [268], [269], [270], [273], [274], [275], [276], [277], [278], [279], [280], [283], [284], [287], [288], [289], [290], [291], [292], [297], [298], [299], [300], [301], [302], [303], [304], [305], [307], [308], [309], [310], [311] [2018-11-18 12:50:54,364 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:50:54,364 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:50:55,915 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:50:55,915 INFO L272 AbstractInterpreter]: Visited 125 different actions 944 times. Merged at 19 different actions 81 times. Never widened. Performed 31322 root evaluator evaluations with a maximum evaluation depth of 3. Performed 31322 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 19 fixpoints after 6 different actions. Largest state had 133 variables. [2018-11-18 12:50:55,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:55,925 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:50:55,925 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:50:55,925 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:50:55,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:55,949 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:50:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:56,031 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:50:56,086 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 12:50:56,086 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:50:56,271 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 12:50:56,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:50:56,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2018-11-18 12:50:56,288 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:56,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 12:50:56,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:50:56,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:50:56,289 INFO L87 Difference]: Start difference. First operand 994 states and 1128 transitions. Second operand 5 states. [2018-11-18 12:50:56,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:56,747 INFO L93 Difference]: Finished difference Result 1953 states and 2357 transitions. [2018-11-18 12:50:56,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:50:56,747 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-11-18 12:50:56,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:56,751 INFO L225 Difference]: With dead ends: 1953 [2018-11-18 12:50:56,751 INFO L226 Difference]: Without dead ends: 1334 [2018-11-18 12:50:56,753 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 312 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:50:56,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2018-11-18 12:50:56,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1182. [2018-11-18 12:50:56,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1182 states. [2018-11-18 12:50:56,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1358 transitions. [2018-11-18 12:50:56,803 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1358 transitions. Word has length 157 [2018-11-18 12:50:56,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:56,804 INFO L480 AbstractCegarLoop]: Abstraction has 1182 states and 1358 transitions. [2018-11-18 12:50:56,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 12:50:56,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1358 transitions. [2018-11-18 12:50:56,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-18 12:50:56,806 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:56,806 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:50:56,807 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:56,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:56,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1230217332, now seen corresponding path program 1 times [2018-11-18 12:50:56,807 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:56,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:56,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:56,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:56,808 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 12:50:56,916 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:50:56,916 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:50:56,916 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-11-18 12:50:56,916 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [33], [36], [37], [38], [39], [42], [44], [45], [48], [52], [53], [54], [57], [59], [65], [69], [72], [73], [74], [78], [84], [88], [92], [95], [98], [100], [103], [106], [108], [114], [117], [127], [128], [129], [130], [131], [133], [138], [141], [142], [144], [149], [151], [152], [157], [159], [160], [161], [191], [194], [198], [204], [207], [211], [212], [220], [224], [225], [228], [230], [233], [235], [238], [244], [246], [247], [248], [249], [250], [251], [252], [253], [254], [255], [257], [258], [259], [260], [263], [264], [265], [267], [268], [269], [270], [273], [274], [275], [276], [277], [278], [279], [280], [283], [284], [287], [288], [289], [290], [291], [292], [297], [298], [299], [300], [301], [302], [303], [304], [305], [307], [308], [309], [310], [311] [2018-11-18 12:50:56,919 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:50:56,919 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:50:58,058 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:50:58,059 INFO L272 AbstractInterpreter]: Visited 125 different actions 927 times. Merged at 19 different actions 72 times. Never widened. Performed 29767 root evaluator evaluations with a maximum evaluation depth of 3. Performed 29767 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 17 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-18 12:50:58,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:58,068 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:50:58,068 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:50:58,068 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:50:58,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:58,128 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:50:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:58,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:50:58,344 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 12:50:58,344 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:50:58,734 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 12:50:58,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:50:58,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-18 12:50:58,760 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:58,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 12:50:58,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 12:50:58,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 12:50:58,761 INFO L87 Difference]: Start difference. First operand 1182 states and 1358 transitions. Second operand 8 states. [2018-11-18 12:50:59,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:59,131 INFO L93 Difference]: Finished difference Result 1896 states and 2209 transitions. [2018-11-18 12:50:59,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:50:59,132 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2018-11-18 12:50:59,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:59,132 INFO L225 Difference]: With dead ends: 1896 [2018-11-18 12:50:59,132 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:50:59,136 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 299 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 12:50:59,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:50:59,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:50:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:50:59,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:50:59,137 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2018-11-18 12:50:59,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:59,137 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:50:59,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 12:50:59,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:50:59,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:50:59,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:50:59,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,285 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,290 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,388 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,389 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,389 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,391 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,393 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,618 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:50:59,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:51:00,420 WARN L180 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 39 [2018-11-18 12:51:00,701 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 39 [2018-11-18 12:51:01,045 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2018-11-18 12:51:01,621 WARN L180 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2018-11-18 12:51:02,114 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 441 447) the Hoare annotation is: true [2018-11-18 12:51:02,114 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 441 447) no Hoare annotation was computed. [2018-11-18 12:51:02,114 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 448 456) no Hoare annotation was computed. [2018-11-18 12:51:02,114 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 448 456) the Hoare annotation is: true [2018-11-18 12:51:02,114 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 448 456) no Hoare annotation was computed. [2018-11-18 12:51:02,114 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 399 421) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:51:02,115 INFO L421 ceAbstractionStarter]: At program point L411(line 411) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= main_~tmp~5 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:51:02,115 INFO L421 ceAbstractionStarter]: At program point L411-1(line 411) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= main_~tmp~5 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:51:02,115 INFO L425 ceAbstractionStarter]: For program point L409(lines 409 416) no Hoare annotation was computed. [2018-11-18 12:51:02,115 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 399 421) no Hoare annotation was computed. [2018-11-18 12:51:02,115 INFO L425 ceAbstractionStarter]: For program point L409-1(lines 409 416) no Hoare annotation was computed. [2018-11-18 12:51:02,115 INFO L425 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-18 12:51:02,115 INFO L421 ceAbstractionStarter]: At program point L406(line 406) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:51:02,115 INFO L421 ceAbstractionStarter]: At program point L405(line 405) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:51:02,115 INFO L421 ceAbstractionStarter]: At program point L405-1(line 405) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:51:02,115 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 399 421) no Hoare annotation was computed. [2018-11-18 12:51:02,115 INFO L425 ceAbstractionStarter]: For program point L162-1(line 162) no Hoare annotation was computed. [2018-11-18 12:51:02,115 INFO L425 ceAbstractionStarter]: For program point L160(lines 160 177) no Hoare annotation was computed. [2018-11-18 12:51:02,115 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 156 180) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-18 12:51:02,116 INFO L421 ceAbstractionStarter]: At program point L175(line 175) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1) (or .cse2 .cse0 .cse1) (or (not (= ~methaneLevelCritical~0 1)) .cse2 .cse0))) [2018-11-18 12:51:02,116 INFO L425 ceAbstractionStarter]: For program point L175-1(lines 156 180) no Hoare annotation was computed. [2018-11-18 12:51:02,116 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 156 180) no Hoare annotation was computed. [2018-11-18 12:51:02,116 INFO L421 ceAbstractionStarter]: At program point L170(line 170) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (and (= 0 processEnvironment__wrappee__methaneQuery_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (not (= ~methaneLevelCritical~0 1)) (not .cse2) .cse0) (or .cse0 .cse1 .cse3))) [2018-11-18 12:51:02,116 INFO L421 ceAbstractionStarter]: At program point L166(line 166) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= ~methaneLevelCritical~0 1)) (not (= 0 |old(~pumpRunning~0)|)) .cse0 (and .cse1 .cse2)) (or (and .cse1 (= 0 ~pumpRunning~0) .cse2) .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 12:51:02,116 INFO L425 ceAbstractionStarter]: For program point L164(lines 164 172) no Hoare annotation was computed. [2018-11-18 12:51:02,116 INFO L421 ceAbstractionStarter]: At program point L162(line 162) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or (not (= ~methaneLevelCritical~0 1)) (not .cse2) .cse3 .cse0))) [2018-11-18 12:51:02,116 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 251 259) no Hoare annotation was computed. [2018-11-18 12:51:02,116 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 251 259) the Hoare annotation is: true [2018-11-18 12:51:02,116 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 251 259) no Hoare annotation was computed. [2018-11-18 12:51:02,116 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 434 440) no Hoare annotation was computed. [2018-11-18 12:51:02,117 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 434 440) the Hoare annotation is: true [2018-11-18 12:51:02,117 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 386 395) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:51:02,117 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 386 395) no Hoare annotation was computed. [2018-11-18 12:51:02,117 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 386 395) no Hoare annotation was computed. [2018-11-18 12:51:02,117 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 240 250) the Hoare annotation is: true [2018-11-18 12:51:02,117 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 240 250) no Hoare annotation was computed. [2018-11-18 12:51:02,117 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 240 250) no Hoare annotation was computed. [2018-11-18 12:51:02,117 INFO L428 ceAbstractionStarter]: At program point L245(line 245) the Hoare annotation is: true [2018-11-18 12:51:02,117 INFO L425 ceAbstractionStarter]: For program point L245-1(line 245) no Hoare annotation was computed. [2018-11-18 12:51:02,117 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 232 239) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (= ~methaneLevelCritical~0 1)) .cse1 .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-11-18 12:51:02,117 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 232 239) no Hoare annotation was computed. [2018-11-18 12:51:02,117 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 232 239) no Hoare annotation was computed. [2018-11-18 12:51:02,118 INFO L425 ceAbstractionStarter]: For program point L577(lines 577 583) no Hoare annotation was computed. [2018-11-18 12:51:02,118 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 573 586) no Hoare annotation was computed. [2018-11-18 12:51:02,118 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 573 586) the Hoare annotation is: true [2018-11-18 12:51:02,118 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 573 586) no Hoare annotation was computed. [2018-11-18 12:51:02,118 INFO L421 ceAbstractionStarter]: At program point L192(line 192) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~2) .cse0) .cse3 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse4 .cse1))) [2018-11-18 12:51:02,118 INFO L425 ceAbstractionStarter]: For program point L190(lines 190 198) no Hoare annotation was computed. [2018-11-18 12:51:02,118 INFO L421 ceAbstractionStarter]: At program point L188(line 188) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse4 .cse1))) [2018-11-18 12:51:02,118 INFO L425 ceAbstractionStarter]: For program point L188-1(line 188) no Hoare annotation was computed. [2018-11-18 12:51:02,118 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 203) no Hoare annotation was computed. [2018-11-18 12:51:02,118 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 182 206) no Hoare annotation was computed. [2018-11-18 12:51:02,118 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 182 206) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (not (= ~methaneLevelCritical~0 1)) .cse1))) [2018-11-18 12:51:02,119 INFO L421 ceAbstractionStarter]: At program point L201(line 201) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse4 .cse0 .cse2) (or .cse4 .cse3 .cse0))) [2018-11-18 12:51:02,119 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 182 206) no Hoare annotation was computed. [2018-11-18 12:51:02,119 INFO L421 ceAbstractionStarter]: At program point L196(line 196) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (not (= ~methaneLevelCritical~0 1)) .cse0))) [2018-11-18 12:51:02,119 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 148 154) no Hoare annotation was computed. [2018-11-18 12:51:02,119 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 148 154) the Hoare annotation is: true [2018-11-18 12:51:02,119 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 45 110) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:51:02,119 INFO L425 ceAbstractionStarter]: For program point L93(lines 93 97) no Hoare annotation was computed. [2018-11-18 12:51:02,119 INFO L421 ceAbstractionStarter]: At program point L93-2(lines 85 98) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-18 12:51:02,119 INFO L425 ceAbstractionStarter]: For program point L56(lines 55 102) no Hoare annotation was computed. [2018-11-18 12:51:02,120 INFO L421 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-18 12:51:02,120 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 45 110) no Hoare annotation was computed. [2018-11-18 12:51:02,120 INFO L425 ceAbstractionStarter]: For program point L85(lines 85 98) no Hoare annotation was computed. [2018-11-18 12:51:02,120 INFO L421 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= ~methaneLevelCritical~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-18 12:51:02,120 INFO L425 ceAbstractionStarter]: For program point L75(lines 75 81) no Hoare annotation was computed. [2018-11-18 12:51:02,120 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2018-11-18 12:51:02,120 INFO L421 ceAbstractionStarter]: At program point L100(lines 55 102) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= ~methaneLevelCritical~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-18 12:51:02,120 INFO L421 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (and (= 0 ~pumpRunning~0) .cse0 .cse1) (= ~methaneLevelCritical~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-18 12:51:02,120 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2018-11-18 12:51:02,120 INFO L425 ceAbstractionStarter]: For program point L65-1(lines 65 71) no Hoare annotation was computed. [2018-11-18 12:51:02,120 INFO L425 ceAbstractionStarter]: For program point L57(lines 57 61) no Hoare annotation was computed. [2018-11-18 12:51:02,121 INFO L425 ceAbstractionStarter]: For program point L55-1(lines 55 102) no Hoare annotation was computed. [2018-11-18 12:51:02,121 INFO L421 ceAbstractionStarter]: At program point L103(lines 54 104) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 12:51:02,121 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 45 110) no Hoare annotation was computed. [2018-11-18 12:51:02,121 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 207 214) the Hoare annotation is: (or (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2)) [2018-11-18 12:51:02,121 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 207 214) no Hoare annotation was computed. [2018-11-18 12:51:02,121 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 207 214) no Hoare annotation was computed. [2018-11-18 12:51:02,121 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:51:02,121 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 12:51:02,121 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:51:02,121 INFO L425 ceAbstractionStarter]: For program point L226-1(lines 215 231) no Hoare annotation was computed. [2018-11-18 12:51:02,121 INFO L425 ceAbstractionStarter]: For program point L222(lines 222 228) no Hoare annotation was computed. [2018-11-18 12:51:02,121 INFO L421 ceAbstractionStarter]: At program point L220(line 220) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse2 .cse3 .cse1))) [2018-11-18 12:51:02,122 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 215 231) no Hoare annotation was computed. [2018-11-18 12:51:02,122 INFO L425 ceAbstractionStarter]: For program point L220-1(line 220) no Hoare annotation was computed. [2018-11-18 12:51:02,122 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 215 231) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse2 .cse3 .cse1))) [2018-11-18 12:51:02,122 INFO L421 ceAbstractionStarter]: At program point L226(line 226) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2))) [2018-11-18 12:51:02,122 INFO L425 ceAbstractionStarter]: For program point L305(lines 305 309) no Hoare annotation was computed. [2018-11-18 12:51:02,122 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 296 314) no Hoare annotation was computed. [2018-11-18 12:51:02,122 INFO L428 ceAbstractionStarter]: At program point L303(line 303) the Hoare annotation is: true [2018-11-18 12:51:02,122 INFO L425 ceAbstractionStarter]: For program point L305-2(lines 305 309) no Hoare annotation was computed. [2018-11-18 12:51:02,122 INFO L425 ceAbstractionStarter]: For program point L303-1(line 303) no Hoare annotation was computed. [2018-11-18 12:51:02,122 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 296 314) the Hoare annotation is: true [2018-11-18 12:51:02,122 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 296 314) no Hoare annotation was computed. [2018-11-18 12:51:02,123 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 520 531) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= |old(~methaneLevelCritical~0)| 1)) (not (= 0 ~pumpRunning~0)) (= ~methaneLevelCritical~0 1) .cse0) (or .cse0 (not (= |old(~methaneLevelCritical~0)| 0)) (= 0 ~methaneLevelCritical~0)))) [2018-11-18 12:51:02,123 INFO L425 ceAbstractionStarter]: For program point L524-1(lines 520 531) no Hoare annotation was computed. [2018-11-18 12:51:02,123 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 520 531) no Hoare annotation was computed. [2018-11-18 12:51:02,123 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 532 540) the Hoare annotation is: true [2018-11-18 12:51:02,123 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 532 540) no Hoare annotation was computed. [2018-11-18 12:51:02,123 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 532 540) no Hoare annotation was computed. [2018-11-18 12:51:02,123 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 325 354) no Hoare annotation was computed. [2018-11-18 12:51:02,123 INFO L425 ceAbstractionStarter]: For program point L339(lines 339 343) no Hoare annotation was computed. [2018-11-18 12:51:02,123 INFO L428 ceAbstractionStarter]: At program point L339-1(lines 339 343) the Hoare annotation is: true [2018-11-18 12:51:02,123 INFO L425 ceAbstractionStarter]: For program point L335-1(lines 335 349) no Hoare annotation was computed. [2018-11-18 12:51:02,123 INFO L428 ceAbstractionStarter]: At program point L335-3(lines 335 349) the Hoare annotation is: true [2018-11-18 12:51:02,123 INFO L428 ceAbstractionStarter]: At program point L331(line 331) the Hoare annotation is: true [2018-11-18 12:51:02,123 INFO L425 ceAbstractionStarter]: For program point L331-1(line 331) no Hoare annotation was computed. [2018-11-18 12:51:02,123 INFO L428 ceAbstractionStarter]: At program point L350(lines 325 354) the Hoare annotation is: true [2018-11-18 12:51:02,124 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 325 354) the Hoare annotation is: true [2018-11-18 12:51:02,124 INFO L425 ceAbstractionStarter]: For program point L346(line 346) no Hoare annotation was computed. [2018-11-18 12:51:02,124 INFO L425 ceAbstractionStarter]: For program point L336(line 336) no Hoare annotation was computed. [2018-11-18 12:51:02,124 INFO L425 ceAbstractionStarter]: For program point L128(lines 127 146) no Hoare annotation was computed. [2018-11-18 12:51:02,124 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 124 147) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| 1))) (let ((.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse6 (= ~waterLevel~0 2)) (.cse7 (= 1 ~waterLevel~0)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse8 (not .cse1)) (.cse3 (not (= ~waterLevel~0 1))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not (= ~systemActive~0 1))) (.cse9 (not (= ~methaneLevelCritical~0 0))) (.cse10 (and (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (or .cse0 .cse4 .cse2 .cse5) .cse6) (or .cse4 .cse7 .cse2 .cse8 .cse9) (or (or .cse4 .cse2 .cse9 .cse5) .cse6) (or .cse7 .cse0 .cse4 .cse2 .cse8) (or .cse1 .cse2 .cse3 .cse9) (or .cse0 .cse10 .cse2) (or .cse2 .cse9 .cse10)))) [2018-11-18 12:51:02,124 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 124 147) no Hoare annotation was computed. [2018-11-18 12:51:02,124 INFO L421 ceAbstractionStarter]: At program point L137(line 137) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| 1))) (let ((.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse6 (= ~waterLevel~0 2)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse7 (= 1 ~waterLevel~0)) (.cse8 (not .cse9)) (.cse10 (and (not (= ~waterLevel~0 1)) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or (or .cse3 .cse4 .cse1 .cse5) .cse6) (or .cse4 .cse7 .cse1 .cse8 .cse2) (or (or .cse4 .cse1 .cse2 .cse5) .cse6) (or .cse9 .cse10 .cse4 .cse1 .cse2) (or .cse7 .cse3 .cse4 .cse1 .cse8) (or .cse3 .cse9 .cse10 .cse4 .cse1) (or .cse3 .cse0 .cse1)))) [2018-11-18 12:51:02,124 INFO L421 ceAbstractionStarter]: At program point L135(lines 135 141) the Hoare annotation is: (let ((.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (= 0 ~pumpRunning~0)) (.cse11 (= ~systemActive~0 1)) (.cse9 (= |old(~waterLevel~0)| 1))) (let ((.cse7 (= 1 ~waterLevel~0)) (.cse8 (not .cse9)) (.cse1 (and .cse6 .cse5 .cse11)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse10 (and (not (= ~waterLevel~0 1)) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse2 (not .cse11))) (and (or .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2) (or (or .cse4 .cse6 .cse2 (not (= |old(~waterLevel~0)| 2))) (= ~waterLevel~0 2)) (or .cse6 .cse7 .cse2 .cse8 .cse3) (or .cse7 .cse4 .cse6 .cse2 .cse8) (or .cse9 .cse10 .cse2 .cse1 (and .cse6 .cse0) .cse3) (or .cse4 .cse9 .cse10 .cse6 .cse2)))) [2018-11-18 12:51:02,124 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 124 147) no Hoare annotation was computed. [2018-11-18 12:51:02,125 INFO L421 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (and (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse1 .cse0))) [2018-11-18 12:51:02,125 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 496 507) the Hoare annotation is: (let ((.cse0 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or .cse0 (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2)) (or (not (= ~methaneLevelCritical~0 1)) .cse0 (or .cse1 .cse2)))) [2018-11-18 12:51:02,125 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 496 507) no Hoare annotation was computed. [2018-11-18 12:51:02,125 INFO L425 ceAbstractionStarter]: For program point L500-1(lines 496 507) no Hoare annotation was computed. [2018-11-18 12:51:02,125 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 379 385) no Hoare annotation was computed. [2018-11-18 12:51:02,125 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 379 385) the Hoare annotation is: true [2018-11-18 12:51:02,125 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:51:02,125 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-18 12:51:02,125 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:51:02,125 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:51:02,125 INFO L425 ceAbstractionStarter]: For program point startSystemEXIT(lines 315 322) no Hoare annotation was computed. [2018-11-18 12:51:02,126 INFO L421 ceAbstractionStarter]: At program point startSystemENTRY(lines 315 322) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 1)) (.cse0 (not (= |old(~systemActive~0)| 1)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= ~methaneLevelCritical~0 1)) .cse1 .cse0))) [2018-11-18 12:51:02,126 INFO L425 ceAbstractionStarter]: For program point startSystemFINAL(lines 315 322) no Hoare annotation was computed. [2018-11-18 12:51:02,126 INFO L425 ceAbstractionStarter]: For program point L512-1(lines 508 519) no Hoare annotation was computed. [2018-11-18 12:51:02,126 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 508 519) no Hoare annotation was computed. [2018-11-18 12:51:02,126 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 508 519) the Hoare annotation is: (let ((.cse4 (not (= 0 ~pumpRunning~0))) (.cse6 (not (= ~systemActive~0 1)))) (let ((.cse5 (= 1 ~waterLevel~0)) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse1 (or .cse4 .cse6)) (.cse9 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= ~waterLevel~0 2)) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse5 .cse0 .cse4 .cse6 .cse7) (or (or .cse6 .cse8) .cse9) (or .cse0 .cse1 .cse9) (or .cse2 (or .cse4 .cse6 .cse8) .cse3)))) [2018-11-18 12:51:02,126 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 458 465) no Hoare annotation was computed. [2018-11-18 12:51:02,126 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 462) no Hoare annotation was computed. [2018-11-18 12:51:02,126 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 458 465) the Hoare annotation is: true [2018-11-18 12:51:02,126 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 458 465) no Hoare annotation was computed. [2018-11-18 12:51:02,126 INFO L421 ceAbstractionStarter]: At program point L481(line 481) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= ~methaneLevelCritical~0 1)) (not (= 0 ~pumpRunning~0)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 12:51:02,127 INFO L425 ceAbstractionStarter]: For program point L479(lines 479 485) no Hoare annotation was computed. [2018-11-18 12:51:02,127 INFO L421 ceAbstractionStarter]: At program point L477(line 477) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-11-18 12:51:02,127 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 467 491) the Hoare annotation is: true [2018-11-18 12:51:02,127 INFO L425 ceAbstractionStarter]: For program point L477-1(line 477) no Hoare annotation was computed. [2018-11-18 12:51:02,127 INFO L425 ceAbstractionStarter]: For program point L475(lines 475 488) no Hoare annotation was computed. [2018-11-18 12:51:02,127 INFO L425 ceAbstractionStarter]: For program point L475-1(lines 467 491) no Hoare annotation was computed. [2018-11-18 12:51:02,127 INFO L428 ceAbstractionStarter]: At program point L473(line 473) the Hoare annotation is: true [2018-11-18 12:51:02,127 INFO L425 ceAbstractionStarter]: For program point L473-1(line 473) no Hoare annotation was computed. [2018-11-18 12:51:02,127 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 467 491) no Hoare annotation was computed. [2018-11-18 12:51:02,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:51:02 BoogieIcfgContainer [2018-11-18 12:51:02,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:51:02,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:51:02,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:51:02,138 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:51:02,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:50:46" (3/4) ... [2018-11-18 12:51:02,141 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:51:02,146 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 12:51:02,146 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 12:51:02,146 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:51:02,146 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-11-18 12:51:02,146 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__highWaterSensor [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 12:51:02,147 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 12:51:02,148 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 12:51:02,148 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 12:51:02,148 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 12:51:02,148 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 12:51:02,148 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 12:51:02,148 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-18 12:51:02,148 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 12:51:02,148 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 12:51:02,148 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-11-18 12:51:02,154 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-11-18 12:51:02,155 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 12:51:02,155 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 12:51:02,183 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == \old(pumpRunning)) || (((0 == pumpRunning && methaneLevelCritical == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((0 == methaneLevelCritical && systemActive == 1) && splverifierCounter == 0) [2018-11-18 12:51:02,183 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 12:51:02,217 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_239b2d35-c3cd-475f-9c2f-cff8d29691e0/bin-2019/utaipan/witness.graphml [2018-11-18 12:51:02,217 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:51:02,218 INFO L168 Benchmark]: Toolchain (without parser) took 16507.63 ms. Allocated memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: 812.6 MB). Free memory was 955.4 MB in the beginning and 1.4 GB in the end (delta: -405.0 MB). Peak memory consumption was 407.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:51:02,219 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:51:02,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 955.4 MB in the beginning and 1.2 GB in the end (delta: -196.0 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:51:02,219 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:51:02,219 INFO L168 Benchmark]: Boogie Preprocessor took 31.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:51:02,219 INFO L168 Benchmark]: RCFGBuilder took 478.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:51:02,220 INFO L168 Benchmark]: TraceAbstraction took 15516.98 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 649.6 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -275.0 MB). Peak memory consumption was 945.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:51:02,220 INFO L168 Benchmark]: Witness Printer took 80.00 ms. Allocated memory is still 1.8 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 186.0 kB). Peak memory consumption was 186.0 kB. Max. memory is 11.5 GB. [2018-11-18 12:51:02,222 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 370.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 955.4 MB in the beginning and 1.2 GB in the end (delta: -196.0 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 478.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15516.98 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 649.6 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -275.0 MB). Peak memory consumption was 945.5 MB. Max. memory is 11.5 GB. * Witness Printer took 80.00 ms. Allocated memory is still 1.8 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 186.0 kB). Peak memory consumption was 186.0 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 462]: 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: 335]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((((!(0 == \old(pumpRunning)) || (((0 == pumpRunning && methaneLevelCritical == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((0 == methaneLevelCritical && systemActive == 1) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 149 locations, 1 error locations. SAFE Result, 15.4s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 6.2s AutomataDifference, 0.0s DeadEndRemovalTime, 2.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 2283 SDtfs, 1449 SDslu, 5844 SDs, 0 SdLazy, 2352 SolverSat, 430 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 853 GetRequests, 743 SyntacticMatches, 7 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1182occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.1s AbstIntTime, 3 AbstIntIterations, 1 AbstIntStrong, 0.9968103672613712 AbsIntWeakeningRatio, 1.058252427184466 AbsIntAvgWeakeningVarsNumRemoved, 83.62135922330097 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 241 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 2039 PreInvPairs, 2205 NumberOfFragments, 1822 HoareAnnotationTreeSize, 2039 FomulaSimplifications, 8754 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 62 FomulaSimplificationsInter, 16761 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1409 NumberOfCodeBlocks, 1409 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1707 ConstructedInterpolants, 0 QuantifiedInterpolants, 326811 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1592 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 298/312 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...