./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/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_35a1a828-b3f1-4e67-bc24-d372570afb0e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/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 0.1.23-635dfa2 [2018-12-09 10:15:23,941 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:15:23,941 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:15:23,947 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:15:23,948 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:15:23,948 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:15:23,949 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:15:23,949 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:15:23,950 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:15:23,951 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:15:23,951 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:15:23,951 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:15:23,952 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:15:23,952 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:15:23,953 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:15:23,953 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:15:23,953 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:15:23,954 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:15:23,955 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:15:23,956 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:15:23,956 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:15:23,957 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:15:23,958 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:15:23,958 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:15:23,958 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:15:23,959 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:15:23,959 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:15:23,960 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:15:23,960 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:15:23,960 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:15:23,960 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:15:23,961 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:15:23,961 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:15:23,961 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:15:23,961 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:15:23,962 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:15:23,962 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 10:15:23,969 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:15:23,969 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:15:23,970 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:15:23,970 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:15:23,970 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 10:15:23,970 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 10:15:23,970 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 10:15:23,970 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 10:15:23,970 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 10:15:23,970 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 10:15:23,970 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 10:15:23,970 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 10:15:23,971 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 10:15:23,971 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:15:23,971 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:15:23,971 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:15:23,971 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:15:23,971 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:15:23,971 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:15:23,971 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:15:23,971 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:15:23,972 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:15:23,972 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:15:23,972 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:15:23,972 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:15:23,972 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:15:23,972 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:15:23,972 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:15:23,972 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:15:23,972 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:15:23,972 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:15:23,972 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:15:23,973 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 10:15:23,973 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:15:23,973 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:15:23,973 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 10:15:23,973 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_35a1a828-b3f1-4e67-bc24-d372570afb0e/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 [2018-12-09 10:15:23,990 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:15:23,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:15:24,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:15:24,002 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:15:24,002 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:15:24,003 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product46_true-unreach-call_false-termination.cil.c [2018-12-09 10:15:24,040 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/bin-2019/utaipan/data/92d2c22e3/ba20c2b6cffc4dd196843b9464c532ec/FLAG0d841f903 [2018-12-09 10:15:24,467 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:15:24,467 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/sv-benchmarks/c/product-lines/minepump_spec1_product46_true-unreach-call_false-termination.cil.c [2018-12-09 10:15:24,474 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/bin-2019/utaipan/data/92d2c22e3/ba20c2b6cffc4dd196843b9464c532ec/FLAG0d841f903 [2018-12-09 10:15:24,482 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/bin-2019/utaipan/data/92d2c22e3/ba20c2b6cffc4dd196843b9464c532ec [2018-12-09 10:15:24,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:15:24,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:15:24,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:15:24,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:15:24,488 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:15:24,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:15:24" (1/1) ... [2018-12-09 10:15:24,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c0e1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24, skipping insertion in model container [2018-12-09 10:15:24,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:15:24" (1/1) ... [2018-12-09 10:15:24,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:15:24,515 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:15:24,663 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:15:24,709 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:15:24,749 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:15:24,765 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:15:24,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24 WrapperNode [2018-12-09 10:15:24,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:15:24,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:15:24,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:15:24,766 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:15:24,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24" (1/1) ... [2018-12-09 10:15:24,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24" (1/1) ... [2018-12-09 10:15:24,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:15:24,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:15:24,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:15:24,786 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:15:24,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24" (1/1) ... [2018-12-09 10:15:24,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24" (1/1) ... [2018-12-09 10:15:24,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24" (1/1) ... [2018-12-09 10:15:24,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24" (1/1) ... [2018-12-09 10:15:24,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24" (1/1) ... [2018-12-09 10:15:24,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24" (1/1) ... [2018-12-09 10:15:24,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24" (1/1) ... [2018-12-09 10:15:24,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:15:24,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:15:24,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:15:24,807 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:15:24,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:15:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 10:15:24,839 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 10:15:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:15:24,839 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:15:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:15:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 10:15:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 10:15:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 10:15:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 10:15:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 10:15:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 10:15:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 10:15:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 10:15:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 10:15:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 10:15:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 10:15:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 10:15:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 10:15:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 10:15:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 10:15:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 10:15:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 10:15:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 10:15:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 10:15:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 10:15:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 10:15:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 10:15:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 10:15:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 10:15:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 10:15:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 10:15:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 10:15:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 10:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 10:15:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 10:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 10:15:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 10:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 10:15:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 10:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 10:15:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 10:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 10:15:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 10:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 10:15:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 10:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-09 10:15:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-09 10:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 10:15:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:15:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:15:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 10:15:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 10:15:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 10:15:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 10:15:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:15:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:15:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-09 10:15:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-09 10:15:25,102 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:15:25,102 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 10:15:25,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:15:25 BoogieIcfgContainer [2018-12-09 10:15:25,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:15:25,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:15:25,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:15:25,104 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:15:25,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:15:24" (1/3) ... [2018-12-09 10:15:25,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9df865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:15:25, skipping insertion in model container [2018-12-09 10:15:25,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:24" (2/3) ... [2018-12-09 10:15:25,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9df865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:15:25, skipping insertion in model container [2018-12-09 10:15:25,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:15:25" (3/3) ... [2018-12-09 10:15:25,107 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product46_true-unreach-call_false-termination.cil.c [2018-12-09 10:15:25,112 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:15:25,117 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:15:25,126 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:15:25,144 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:15:25,144 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:15:25,144 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:15:25,144 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:15:25,145 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:15:25,145 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:15:25,145 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:15:25,145 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:15:25,156 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-12-09 10:15:25,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 10:15:25,161 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:15:25,162 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:15:25,163 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:15:25,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:25,166 INFO L82 PathProgramCache]: Analyzing trace with hash -462838774, now seen corresponding path program 1 times [2018-12-09 10:15:25,167 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:15:25,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:25,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:15:25,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:25,196 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:15:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:15:25,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:15:25,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:15:25,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 10:15:25,305 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:15:25,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 10:15:25,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 10:15:25,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:15:25,317 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2018-12-09 10:15:25,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:15:25,340 INFO L93 Difference]: Finished difference Result 268 states and 333 transitions. [2018-12-09 10:15:25,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 10:15:25,341 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 10:15:25,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:15:25,348 INFO L225 Difference]: With dead ends: 268 [2018-12-09 10:15:25,348 INFO L226 Difference]: Without dead ends: 134 [2018-12-09 10:15:25,351 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:15:25,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-12-09 10:15:25,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-12-09 10:15:25,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-12-09 10:15:25,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2018-12-09 10:15:25,382 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 46 [2018-12-09 10:15:25,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:15:25,382 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2018-12-09 10:15:25,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 10:15:25,382 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2018-12-09 10:15:25,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 10:15:25,384 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:15:25,384 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:15:25,384 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:15:25,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:25,384 INFO L82 PathProgramCache]: Analyzing trace with hash 2015304629, now seen corresponding path program 1 times [2018-12-09 10:15:25,384 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:15:25,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:25,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:15:25,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:25,385 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:15:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:15:25,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:15:25,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:15:25,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:15:25,434 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:15:25,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:15:25,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:15:25,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:15:25,436 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 3 states. [2018-12-09 10:15:25,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:15:25,448 INFO L93 Difference]: Finished difference Result 213 states and 251 transitions. [2018-12-09 10:15:25,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:15:25,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 10:15:25,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:15:25,450 INFO L225 Difference]: With dead ends: 213 [2018-12-09 10:15:25,450 INFO L226 Difference]: Without dead ends: 125 [2018-12-09 10:15:25,451 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:15:25,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-12-09 10:15:25,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-12-09 10:15:25,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-12-09 10:15:25,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2018-12-09 10:15:25,458 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 47 [2018-12-09 10:15:25,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:15:25,459 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2018-12-09 10:15:25,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:15:25,459 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2018-12-09 10:15:25,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 10:15:25,459 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:15:25,460 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:15:25,460 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:15:25,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:25,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1303312121, now seen corresponding path program 1 times [2018-12-09 10:15:25,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:15:25,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:25,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:15:25,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:25,461 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:15:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:15:25,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:15:25,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:15:25,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:15:25,541 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:15:25,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:15:25,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:15:25,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:15:25,542 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand 7 states. [2018-12-09 10:15:25,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:15:25,717 INFO L93 Difference]: Finished difference Result 226 states and 269 transitions. [2018-12-09 10:15:25,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:15:25,717 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-09 10:15:25,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:15:25,718 INFO L225 Difference]: With dead ends: 226 [2018-12-09 10:15:25,718 INFO L226 Difference]: Without dead ends: 125 [2018-12-09 10:15:25,719 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 10:15:25,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-12-09 10:15:25,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-12-09 10:15:25,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-12-09 10:15:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 145 transitions. [2018-12-09 10:15:25,727 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 145 transitions. Word has length 52 [2018-12-09 10:15:25,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:15:25,727 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 145 transitions. [2018-12-09 10:15:25,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:15:25,727 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 145 transitions. [2018-12-09 10:15:25,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-09 10:15:25,728 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:15:25,728 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:15:25,728 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:15:25,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:25,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1281182978, now seen corresponding path program 1 times [2018-12-09 10:15:25,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:15:25,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:25,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:15:25,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:25,730 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:15:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:15:25,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:15:25,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:15:25,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 10:15:25,778 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:15:25,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 10:15:25,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 10:15:25,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 10:15:25,778 INFO L87 Difference]: Start difference. First operand 125 states and 145 transitions. Second operand 5 states. [2018-12-09 10:15:26,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:15:26,087 INFO L93 Difference]: Finished difference Result 332 states and 400 transitions. [2018-12-09 10:15:26,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 10:15:26,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-12-09 10:15:26,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:15:26,089 INFO L225 Difference]: With dead ends: 332 [2018-12-09 10:15:26,089 INFO L226 Difference]: Without dead ends: 231 [2018-12-09 10:15:26,090 INFO L631 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 [2018-12-09 10:15:26,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2018-12-09 10:15:26,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 212. [2018-12-09 10:15:26,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-12-09 10:15:26,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 241 transitions. [2018-12-09 10:15:26,114 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 241 transitions. Word has length 65 [2018-12-09 10:15:26,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:15:26,115 INFO L480 AbstractCegarLoop]: Abstraction has 212 states and 241 transitions. [2018-12-09 10:15:26,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 10:15:26,115 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 241 transitions. [2018-12-09 10:15:26,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-09 10:15:26,117 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:15:26,117 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:15:26,117 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:15:26,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:26,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1711882229, now seen corresponding path program 1 times [2018-12-09 10:15:26,118 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:15:26,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:26,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:15:26,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:26,119 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:15:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:15:26,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:15:26,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:15:26,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:15:26,189 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:15:26,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:15:26,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:15:26,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:15:26,190 INFO L87 Difference]: Start difference. First operand 212 states and 241 transitions. Second operand 6 states. [2018-12-09 10:15:26,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:15:26,307 INFO L93 Difference]: Finished difference Result 573 states and 673 transitions. [2018-12-09 10:15:26,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:15:26,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2018-12-09 10:15:26,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:15:26,310 INFO L225 Difference]: With dead ends: 573 [2018-12-09 10:15:26,310 INFO L226 Difference]: Without dead ends: 385 [2018-12-09 10:15:26,311 INFO L631 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 [2018-12-09 10:15:26,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2018-12-09 10:15:26,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 379. [2018-12-09 10:15:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-12-09 10:15:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 432 transitions. [2018-12-09 10:15:26,334 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 432 transitions. Word has length 79 [2018-12-09 10:15:26,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:15:26,335 INFO L480 AbstractCegarLoop]: Abstraction has 379 states and 432 transitions. [2018-12-09 10:15:26,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:15:26,335 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 432 transitions. [2018-12-09 10:15:26,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-09 10:15:26,336 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:15:26,336 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:15:26,336 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:15:26,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:26,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1794398575, now seen corresponding path program 1 times [2018-12-09 10:15:26,336 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:15:26,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:26,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:15:26,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:26,337 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:15:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:15:26,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:15:26,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:15:26,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:15:26,395 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:15:26,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:15:26,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:15:26,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:15:26,396 INFO L87 Difference]: Start difference. First operand 379 states and 432 transitions. Second operand 7 states. [2018-12-09 10:15:26,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:15:26,690 INFO L93 Difference]: Finished difference Result 414 states and 486 transitions. [2018-12-09 10:15:26,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 10:15:26,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2018-12-09 10:15:26,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:15:26,692 INFO L225 Difference]: With dead ends: 414 [2018-12-09 10:15:26,692 INFO L226 Difference]: Without dead ends: 411 [2018-12-09 10:15:26,693 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-09 10:15:26,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2018-12-09 10:15:26,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 379. [2018-12-09 10:15:26,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-12-09 10:15:26,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 431 transitions. [2018-12-09 10:15:26,716 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 431 transitions. Word has length 83 [2018-12-09 10:15:26,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:15:26,717 INFO L480 AbstractCegarLoop]: Abstraction has 379 states and 431 transitions. [2018-12-09 10:15:26,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:15:26,717 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 431 transitions. [2018-12-09 10:15:26,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-12-09 10:15:26,718 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:15:26,719 INFO L402 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] [2018-12-09 10:15:26,719 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:15:26,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:26,719 INFO L82 PathProgramCache]: Analyzing trace with hash -734701378, now seen corresponding path program 1 times [2018-12-09 10:15:26,719 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:15:26,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:26,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:15:26,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:26,720 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:15:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:15:26,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 10:15:26,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:15:26,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:15:26,772 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:15:26,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:15:26,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:15:26,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:15:26,773 INFO L87 Difference]: Start difference. First operand 379 states and 431 transitions. Second operand 6 states. [2018-12-09 10:15:26,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:15:26,806 INFO L93 Difference]: Finished difference Result 748 states and 870 transitions. [2018-12-09 10:15:26,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:15:26,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2018-12-09 10:15:26,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:15:26,809 INFO L225 Difference]: With dead ends: 748 [2018-12-09 10:15:26,809 INFO L226 Difference]: Without dead ends: 393 [2018-12-09 10:15:26,810 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:15:26,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-12-09 10:15:26,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 389. [2018-12-09 10:15:26,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2018-12-09 10:15:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 441 transitions. [2018-12-09 10:15:26,826 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 441 transitions. Word has length 99 [2018-12-09 10:15:26,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:15:26,826 INFO L480 AbstractCegarLoop]: Abstraction has 389 states and 441 transitions. [2018-12-09 10:15:26,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:15:26,826 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 441 transitions. [2018-12-09 10:15:26,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-12-09 10:15:26,828 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:15:26,828 INFO L402 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] [2018-12-09 10:15:26,828 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:15:26,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:26,828 INFO L82 PathProgramCache]: Analyzing trace with hash 158784960, now seen corresponding path program 1 times [2018-12-09 10:15:26,828 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:15:26,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:26,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:15:26,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:26,829 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:15:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:15:26,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 10:15:26,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:15:26,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 10:15:26,917 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:15:26,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 10:15:26,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 10:15:26,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:15:26,917 INFO L87 Difference]: Start difference. First operand 389 states and 441 transitions. Second operand 8 states. [2018-12-09 10:15:26,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:15:26,947 INFO L93 Difference]: Finished difference Result 768 states and 892 transitions. [2018-12-09 10:15:26,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:15:26,947 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2018-12-09 10:15:26,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:15:26,949 INFO L225 Difference]: With dead ends: 768 [2018-12-09 10:15:26,949 INFO L226 Difference]: Without dead ends: 403 [2018-12-09 10:15:26,950 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:15:26,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2018-12-09 10:15:26,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 397. [2018-12-09 10:15:26,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2018-12-09 10:15:26,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 449 transitions. [2018-12-09 10:15:26,970 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 449 transitions. Word has length 99 [2018-12-09 10:15:26,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:15:26,970 INFO L480 AbstractCegarLoop]: Abstraction has 397 states and 449 transitions. [2018-12-09 10:15:26,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 10:15:26,971 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 449 transitions. [2018-12-09 10:15:26,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-12-09 10:15:26,972 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:15:26,972 INFO L402 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] [2018-12-09 10:15:26,972 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:15:26,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:26,973 INFO L82 PathProgramCache]: Analyzing trace with hash 151025601, now seen corresponding path program 1 times [2018-12-09 10:15:26,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:15:26,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:26,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:15:26,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:26,974 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:15:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:15:27,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 10:15:27,033 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:15:27,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 10:15:27,033 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:15:27,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 10:15:27,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 10:15:27,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:15:27,034 INFO L87 Difference]: Start difference. First operand 397 states and 449 transitions. Second operand 4 states. [2018-12-09 10:15:27,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:15:27,161 INFO L93 Difference]: Finished difference Result 1179 states and 1402 transitions. [2018-12-09 10:15:27,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 10:15:27,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2018-12-09 10:15:27,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:15:27,164 INFO L225 Difference]: With dead ends: 1179 [2018-12-09 10:15:27,164 INFO L226 Difference]: Without dead ends: 806 [2018-12-09 10:15:27,165 INFO L631 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 [2018-12-09 10:15:27,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-12-09 10:15:27,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 791. [2018-12-09 10:15:27,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2018-12-09 10:15:27,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 921 transitions. [2018-12-09 10:15:27,188 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 921 transitions. Word has length 99 [2018-12-09 10:15:27,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:15:27,188 INFO L480 AbstractCegarLoop]: Abstraction has 791 states and 921 transitions. [2018-12-09 10:15:27,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 10:15:27,188 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 921 transitions. [2018-12-09 10:15:27,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-12-09 10:15:27,189 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:15:27,189 INFO L402 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] [2018-12-09 10:15:27,189 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:15:27,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:27,189 INFO L82 PathProgramCache]: Analyzing trace with hash 291684775, now seen corresponding path program 1 times [2018-12-09 10:15:27,189 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:15:27,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:27,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:15:27,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:27,190 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:15:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:15:27,268 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:15:27,268 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:15:27,268 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:15:27,268 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 104 with the following transitions: [2018-12-09 10:15:27,270 INFO L205 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], [83], [87], [91], [94], [99], [102], [107], [113], [116], [126], [127], [128], [129], [130], [132], [137], [140], [141], [143], [148], [150], [151], [156], [158], [159], [160], [192], [196], [210], [218], [222], [223], [226], [228], [231], [233], [236], [245], [246], [247], [248], [249], [250], [251], [252], [253], [255], [256], [257], [258], [263], [265], [266], [273], [274], [275], [276], [277], [278], [281], [285], [286], [287], [288], [289], [290], [297], [298], [299], [301], [302], [303], [305], [306], [307], [308], [309] [2018-12-09 10:15:27,292 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:15:27,292 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:15:27,560 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 10:15:27,561 INFO L272 AbstractInterpreter]: Visited 77 different actions 77 times. Never merged. Never widened. Performed 2601 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2601 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 10:15:27,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:27,569 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 10:15:27,825 INFO L227 lantSequenceWeakener]: Weakened 75 states. On average, predicates are now at 97.26% of their original sizes. [2018-12-09 10:15:27,825 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 10:15:27,930 INFO L418 sIntCurrentIteration]: We unified 102 AI predicates to 102 [2018-12-09 10:15:27,930 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 10:15:27,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 10:15:27,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [13] total 29 [2018-12-09 10:15:27,931 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:15:27,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-09 10:15:27,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-09 10:15:27,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-12-09 10:15:27,932 INFO L87 Difference]: Start difference. First operand 791 states and 921 transitions. Second operand 18 states. [2018-12-09 10:15:30,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:15:30,855 INFO L93 Difference]: Finished difference Result 1752 states and 2073 transitions. [2018-12-09 10:15:30,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-09 10:15:30,855 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 103 [2018-12-09 10:15:30,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:15:30,858 INFO L225 Difference]: With dead ends: 1752 [2018-12-09 10:15:30,858 INFO L226 Difference]: Without dead ends: 985 [2018-12-09 10:15:30,860 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 112 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2018-12-09 10:15:30,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2018-12-09 10:15:30,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 981. [2018-12-09 10:15:30,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 981 states. [2018-12-09 10:15:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1115 transitions. [2018-12-09 10:15:30,895 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1115 transitions. Word has length 103 [2018-12-09 10:15:30,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:15:30,895 INFO L480 AbstractCegarLoop]: Abstraction has 981 states and 1115 transitions. [2018-12-09 10:15:30,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-09 10:15:30,895 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1115 transitions. [2018-12-09 10:15:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-12-09 10:15:30,897 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:15:30,897 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:15:30,897 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:15:30,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:30,898 INFO L82 PathProgramCache]: Analyzing trace with hash -503372183, now seen corresponding path program 1 times [2018-12-09 10:15:30,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:15:30,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:30,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:15:30,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:15:30,898 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:15:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:15:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-09 10:15:31,009 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:15:31,009 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:15:31,009 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-12-09 10:15:31,009 INFO L205 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], [83], [87], [91], [94], [97], [99], [102], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [137], [140], [141], [143], [148], [150], [151], [156], [158], [159], [160], [189], [192], [196], [202], [205], [209], [210], [218], [222], [223], [226], [228], [231], [233], [236], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [253], [255], [256], [257], [258], [261], [262], [263], [265], [266], [267], [268], [271], [272], [273], [274], [275], [276], [277], [278], [281], [282], [285], [286], [287], [288], [289], [290], [295], [296], [297], [298], [299], [300], [301], [302], [303], [305], [306], [307], [308], [309] [2018-12-09 10:15:31,011 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:15:31,011 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:15:32,042 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:15:32,042 INFO L272 AbstractInterpreter]: Visited 124 different actions 924 times. Merged at 18 different actions 70 times. Never widened. Performed 30618 root evaluator evaluations with a maximum evaluation depth of 3. Performed 30618 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 17 fixpoints after 4 different actions. Largest state had 133 variables. [2018-12-09 10:15:32,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:15:32,046 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:15:32,046 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:15:32,046 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 10:15:32,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:15:32,054 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:15:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:15:32,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:15:32,251 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 10:15:32,251 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:15:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-09 10:15:32,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 10:15:32,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-09 10:15:32,567 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:15:32,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 10:15:32,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 10:15:32,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 10:15:32,567 INFO L87 Difference]: Start difference. First operand 981 states and 1115 transitions. Second operand 8 states. [2018-12-09 10:15:32,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:15:32,724 INFO L93 Difference]: Finished difference Result 1513 states and 1740 transitions. [2018-12-09 10:15:32,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:15:32,725 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2018-12-09 10:15:32,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:15:32,725 INFO L225 Difference]: With dead ends: 1513 [2018-12-09 10:15:32,726 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 10:15:32,728 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 295 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 10:15:32,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 10:15:32,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 10:15:32,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 10:15:32,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 10:15:32,729 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2018-12-09 10:15:32,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:15:32,729 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 10:15:32,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 10:15:32,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 10:15:32,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 10:15:32,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 10:15:32,811 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:15:32,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:15:32,961 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:15:33,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:15:33,486 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2018-12-09 10:15:33,779 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2018-12-09 10:15:34,512 WARN L180 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2018-12-09 10:15:34,914 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 441 447) the Hoare annotation is: true [2018-12-09 10:15:34,915 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 441 447) no Hoare annotation was computed. [2018-12-09 10:15:34,915 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 448 456) no Hoare annotation was computed. [2018-12-09 10:15:34,915 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 448 456) the Hoare annotation is: true [2018-12-09 10:15:34,915 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 448 456) no Hoare annotation was computed. [2018-12-09 10:15:34,915 INFO L444 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))) [2018-12-09 10:15:34,915 INFO L444 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))) [2018-12-09 10:15:34,915 INFO L444 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))) [2018-12-09 10:15:34,915 INFO L448 ceAbstractionStarter]: For program point L409(lines 409 416) no Hoare annotation was computed. [2018-12-09 10:15:34,915 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 399 421) no Hoare annotation was computed. [2018-12-09 10:15:34,915 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 409 416) no Hoare annotation was computed. [2018-12-09 10:15:34,915 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-09 10:15:34,915 INFO L444 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))) [2018-12-09 10:15:34,915 INFO L444 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))) [2018-12-09 10:15:34,915 INFO L444 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))) [2018-12-09 10:15:34,915 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 399 421) no Hoare annotation was computed. [2018-12-09 10:15:34,915 INFO L448 ceAbstractionStarter]: For program point L162-1(line 162) no Hoare annotation was computed. [2018-12-09 10:15:34,915 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 177) no Hoare annotation was computed. [2018-12-09 10:15:34,916 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 156 180) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 10:15:34,916 INFO L444 ceAbstractionStarter]: At program point L175(line 175) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1) (or .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse2))) [2018-12-09 10:15:34,916 INFO L448 ceAbstractionStarter]: For program point L175-1(lines 156 180) no Hoare annotation was computed. [2018-12-09 10:15:34,916 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 156 180) no Hoare annotation was computed. [2018-12-09 10:15:34,916 INFO L444 ceAbstractionStarter]: At program point L170(line 170) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (and (= 0 processEnvironment__wrappee__methaneQuery_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not (= ~methaneLevelCritical~0 1)) .cse3 (not .cse2) .cse0) (or .cse3 .cse0 .cse1))) [2018-12-09 10:15:34,916 INFO L444 ceAbstractionStarter]: At program point L166(line 166) the Hoare annotation is: (let ((.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= ~waterLevel~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1) .cse2) (or .cse2 (not (= ~methaneLevelCritical~0 0)) (and (= 0 ~pumpRunning~0) .cse0 .cse1)))) [2018-12-09 10:15:34,916 INFO L448 ceAbstractionStarter]: For program point L164(lines 164 172) no Hoare annotation was computed. [2018-12-09 10:15:34,916 INFO L444 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))) [2018-12-09 10:15:34,916 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 251 259) no Hoare annotation was computed. [2018-12-09 10:15:34,916 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 251 259) the Hoare annotation is: true [2018-12-09 10:15:34,916 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 251 259) no Hoare annotation was computed. [2018-12-09 10:15:34,916 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 434 440) no Hoare annotation was computed. [2018-12-09 10:15:34,916 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 434 440) the Hoare annotation is: true [2018-12-09 10:15:34,916 INFO L444 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))) [2018-12-09 10:15:34,916 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 386 395) no Hoare annotation was computed. [2018-12-09 10:15:34,916 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 386 395) no Hoare annotation was computed. [2018-12-09 10:15:34,916 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 240 250) the Hoare annotation is: true [2018-12-09 10:15:34,916 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 240 250) no Hoare annotation was computed. [2018-12-09 10:15:34,917 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 240 250) no Hoare annotation was computed. [2018-12-09 10:15:34,917 INFO L451 ceAbstractionStarter]: At program point L245(line 245) the Hoare annotation is: true [2018-12-09 10:15:34,917 INFO L448 ceAbstractionStarter]: For program point L245-1(line 245) no Hoare annotation was computed. [2018-12-09 10:15:34,917 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 232 239) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (= 0 |old(~pumpRunning~0)|))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-12-09 10:15:34,917 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 232 239) no Hoare annotation was computed. [2018-12-09 10:15:34,917 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 232 239) no Hoare annotation was computed. [2018-12-09 10:15:34,917 INFO L448 ceAbstractionStarter]: For program point L577(lines 577 583) no Hoare annotation was computed. [2018-12-09 10:15:34,917 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 573 586) no Hoare annotation was computed. [2018-12-09 10:15:34,917 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 573 586) the Hoare annotation is: true [2018-12-09 10:15:34,917 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 573 586) no Hoare annotation was computed. [2018-12-09 10:15:34,917 INFO L444 ceAbstractionStarter]: At program point L192(line 192) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse1 .cse4 .cse2) (or .cse3 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~2) .cse4) .cse1))) [2018-12-09 10:15:34,917 INFO L448 ceAbstractionStarter]: For program point L190(lines 190 198) no Hoare annotation was computed. [2018-12-09 10:15:34,917 INFO L444 ceAbstractionStarter]: At program point L188(line 188) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse1 .cse4 .cse2) (or .cse3 .cse4 .cse1))) [2018-12-09 10:15:34,917 INFO L448 ceAbstractionStarter]: For program point L188-1(line 188) no Hoare annotation was computed. [2018-12-09 10:15:34,917 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 203) no Hoare annotation was computed. [2018-12-09 10:15:34,917 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 182 206) no Hoare annotation was computed. [2018-12-09 10:15:34,917 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 182 206) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse1 .cse0))) [2018-12-09 10:15:34,917 INFO L444 ceAbstractionStarter]: At program point L201(line 201) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse4 .cse0 .cse3) (or .cse4 .cse0 .cse2))) [2018-12-09 10:15:34,917 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 182 206) no Hoare annotation was computed. [2018-12-09 10:15:34,918 INFO L444 ceAbstractionStarter]: At program point L196(line 196) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) (or (not (= ~methaneLevelCritical~0 1)) .cse0))) [2018-12-09 10:15:34,918 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 148 154) no Hoare annotation was computed. [2018-12-09 10:15:34,918 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 148 154) the Hoare annotation is: true [2018-12-09 10:15:34,918 INFO L444 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))) [2018-12-09 10:15:34,918 INFO L448 ceAbstractionStarter]: For program point L93(lines 93 97) no Hoare annotation was computed. [2018-12-09 10:15:34,918 INFO L444 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))) [2018-12-09 10:15:34,918 INFO L448 ceAbstractionStarter]: For program point L56(lines 55 102) no Hoare annotation was computed. [2018-12-09 10:15:34,918 INFO L444 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))) [2018-12-09 10:15:34,918 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 45 110) no Hoare annotation was computed. [2018-12-09 10:15:34,918 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 98) no Hoare annotation was computed. [2018-12-09 10:15:34,918 INFO L444 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))) [2018-12-09 10:15:34,918 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 81) no Hoare annotation was computed. [2018-12-09 10:15:34,918 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2018-12-09 10:15:34,918 INFO L444 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))) [2018-12-09 10:15:34,918 INFO L444 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))) [2018-12-09 10:15:34,918 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2018-12-09 10:15:34,918 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 65 71) no Hoare annotation was computed. [2018-12-09 10:15:34,918 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 61) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L444 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))) [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 45 110) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 207 214) the Hoare annotation is: (or (or (= ~waterLevel~0 1) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 207 214) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 207 214) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~pumpRunning~0)| ~pumpRunning~0) [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point L226-1(lines 215 231) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point L222(lines 222 228) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L444 ceAbstractionStarter]: At program point L220(line 220) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 215 231) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point L220-1(line 220) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 215 231) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-12-09 10:15:34,919 INFO L444 ceAbstractionStarter]: At program point L226(line 226) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 309) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 296 314) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L451 ceAbstractionStarter]: At program point L303(line 303) the Hoare annotation is: true [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point L305-2(lines 305 309) no Hoare annotation was computed. [2018-12-09 10:15:34,919 INFO L448 ceAbstractionStarter]: For program point L303-1(line 303) no Hoare annotation was computed. [2018-12-09 10:15:34,920 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 296 314) the Hoare annotation is: true [2018-12-09 10:15:34,920 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 296 314) no Hoare annotation was computed. [2018-12-09 10:15:34,920 INFO L444 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 (= 0 ~methaneLevelCritical~0) .cse0 (not (= |old(~methaneLevelCritical~0)| 0))))) [2018-12-09 10:15:34,920 INFO L448 ceAbstractionStarter]: For program point L524-1(lines 520 531) no Hoare annotation was computed. [2018-12-09 10:15:34,920 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 520 531) no Hoare annotation was computed. [2018-12-09 10:15:34,920 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 532 540) the Hoare annotation is: true [2018-12-09 10:15:34,920 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 532 540) no Hoare annotation was computed. [2018-12-09 10:15:34,920 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 532 540) no Hoare annotation was computed. [2018-12-09 10:15:34,920 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 325 354) no Hoare annotation was computed. [2018-12-09 10:15:34,920 INFO L451 ceAbstractionStarter]: At program point L350(lines 325 354) the Hoare annotation is: true [2018-12-09 10:15:34,920 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 325 354) the Hoare annotation is: true [2018-12-09 10:15:34,920 INFO L448 ceAbstractionStarter]: For program point L346(line 346) no Hoare annotation was computed. [2018-12-09 10:15:34,920 INFO L448 ceAbstractionStarter]: For program point L339(lines 339 343) no Hoare annotation was computed. [2018-12-09 10:15:34,920 INFO L451 ceAbstractionStarter]: At program point L339-1(lines 339 343) the Hoare annotation is: true [2018-12-09 10:15:34,920 INFO L448 ceAbstractionStarter]: For program point L336(line 336) no Hoare annotation was computed. [2018-12-09 10:15:34,920 INFO L451 ceAbstractionStarter]: At program point L335-2(lines 335 349) the Hoare annotation is: true [2018-12-09 10:15:34,920 INFO L451 ceAbstractionStarter]: At program point L331(line 331) the Hoare annotation is: true [2018-12-09 10:15:34,920 INFO L448 ceAbstractionStarter]: For program point L331-1(line 331) no Hoare annotation was computed. [2018-12-09 10:15:34,920 INFO L448 ceAbstractionStarter]: For program point L128(lines 127 146) no Hoare annotation was computed. [2018-12-09 10:15:34,920 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 124 147) the Hoare annotation is: (let ((.cse5 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse7 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse9 (= 1 ~waterLevel~0)) (.cse10 (not .cse5)) (.cse6 (not (= ~waterLevel~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse2 .cse6) (or .cse7 .cse2 .cse8) (or .cse0 .cse1 .cse9 .cse2 .cse10) (or .cse0 .cse2 .cse7) (or .cse1 .cse9 .cse2 .cse10 .cse8) (or .cse5 .cse2 .cse6 .cse8) (or .cse1 .cse3 .cse2 .cse8 .cse4)))) [2018-12-09 10:15:34,920 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 124 147) no Hoare annotation was computed. [2018-12-09 10:15:34,921 INFO L444 ceAbstractionStarter]: At program point L137(line 137) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| 1))) (let ((.cse10 (not (= ~waterLevel~0 1))) (.cse5 (= 1 ~waterLevel~0)) (.cse6 (not .cse9)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= ~waterLevel~0 2)) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse7 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse2 .cse6) (or .cse7 .cse2 .cse8) (or .cse0 .cse9 .cse1 .cse10 .cse2) (or .cse9 .cse1 .cse2 .cse8 .cse10) (or .cse1 .cse5 .cse2 .cse6 .cse8) (or .cse1 .cse3 .cse2 .cse8 .cse4) (or .cse0 .cse7 .cse2)))) [2018-12-09 10:15:34,921 INFO L444 ceAbstractionStarter]: At program point L135(lines 135 141) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| 1))) (let ((.cse5 (= 0 ~pumpRunning~0)) (.cse3 (= 1 ~waterLevel~0)) (.cse4 (not .cse8)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse6 (not (= ~waterLevel~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (= ~waterLevel~0 2) (not (= |old(~waterLevel~0)| 2))) (or .cse0 .cse1 .cse3 .cse2 .cse4) (or .cse0 .cse2 .cse5) (or .cse6 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse5 .cse2 .cse7) (or .cse8 .cse6 .cse2 .cse1 .cse7) (or .cse1 .cse3 .cse2 .cse4 .cse7) (or .cse0 .cse8 .cse6 .cse1 .cse2)))) [2018-12-09 10:15:34,921 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 124 147) no Hoare annotation was computed. [2018-12-09 10:15:34,921 INFO L444 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (let ((.cse1 (and (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse1 .cse0))) [2018-12-09 10:15:34,921 INFO L451 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 496 507) the Hoare annotation is: true [2018-12-09 10:15:34,921 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 496 507) no Hoare annotation was computed. [2018-12-09 10:15:34,921 INFO L448 ceAbstractionStarter]: For program point L500-1(lines 496 507) no Hoare annotation was computed. [2018-12-09 10:15:34,921 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 379 385) no Hoare annotation was computed. [2018-12-09 10:15:34,921 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 379 385) the Hoare annotation is: true [2018-12-09 10:15:34,921 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:15:34,921 INFO L444 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)) [2018-12-09 10:15:34,921 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 10:15:34,921 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 10:15:34,921 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 315 322) no Hoare annotation was computed. [2018-12-09 10:15:34,921 INFO L444 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 (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 10:15:34,921 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 315 322) no Hoare annotation was computed. [2018-12-09 10:15:34,921 INFO L448 ceAbstractionStarter]: For program point L512-1(lines 508 519) no Hoare annotation was computed. [2018-12-09 10:15:34,921 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 508 519) no Hoare annotation was computed. [2018-12-09 10:15:34,922 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 508 519) the Hoare annotation is: (let ((.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= ~waterLevel~0 2)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse5 (= 1 ~waterLevel~0)) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 (or .cse2 .cse3) .cse4) (or .cse2 .cse5 .cse3 .cse6 .cse7) (or (or .cse2 .cse3 .cse7) .cse1 .cse4) (or .cse0 .cse2 .cse5 .cse3 .cse6))) [2018-12-09 10:15:34,922 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 458 465) no Hoare annotation was computed. [2018-12-09 10:15:34,922 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 458 465) the Hoare annotation is: true [2018-12-09 10:15:34,922 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 462) no Hoare annotation was computed. [2018-12-09 10:15:34,922 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 458 465) no Hoare annotation was computed. [2018-12-09 10:15:34,922 INFO L444 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))))) [2018-12-09 10:15:34,922 INFO L448 ceAbstractionStarter]: For program point L479(lines 479 485) no Hoare annotation was computed. [2018-12-09 10:15:34,922 INFO L444 ceAbstractionStarter]: At program point L477(line 477) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-12-09 10:15:34,922 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 467 491) the Hoare annotation is: true [2018-12-09 10:15:34,922 INFO L448 ceAbstractionStarter]: For program point L477-1(line 477) no Hoare annotation was computed. [2018-12-09 10:15:34,922 INFO L448 ceAbstractionStarter]: For program point L475(lines 475 488) no Hoare annotation was computed. [2018-12-09 10:15:34,922 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 467 491) no Hoare annotation was computed. [2018-12-09 10:15:34,922 INFO L451 ceAbstractionStarter]: At program point L473(line 473) the Hoare annotation is: true [2018-12-09 10:15:34,922 INFO L448 ceAbstractionStarter]: For program point L473-1(line 473) no Hoare annotation was computed. [2018-12-09 10:15:34,922 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 467 491) no Hoare annotation was computed. [2018-12-09 10:15:34,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:15:34 BoogieIcfgContainer [2018-12-09 10:15:34,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:15:34,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:15:34,930 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:15:34,930 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:15:34,930 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:15:25" (3/4) ... [2018-12-09 10:15:34,932 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__highWaterSensor [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 10:15:34,936 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-09 10:15:34,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-09 10:15:34,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-09 10:15:34,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-09 10:15:34,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-09 10:15:34,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-09 10:15:34,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-09 10:15:34,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-09 10:15:34,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-12-09 10:15:34,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-09 10:15:34,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-09 10:15:34,937 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-12-09 10:15:34,941 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-12-09 10:15:34,942 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-09 10:15:34,942 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 10:15:34,942 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 10:15:34,942 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 10:15:34,943 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 10:15:34,959 WARN L221 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) [2018-12-09 10:15:34,959 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-09 10:15:34,982 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_35a1a828-b3f1-4e67-bc24-d372570afb0e/bin-2019/utaipan/witness.graphml [2018-12-09 10:15:34,982 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:15:34,982 INFO L168 Benchmark]: Toolchain (without parser) took 10498.08 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 550.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 389.1 MB. Max. memory is 11.5 GB. [2018-12-09 10:15:34,983 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:15:34,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:15:34,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:15:34,983 INFO L168 Benchmark]: Boogie Preprocessor took 21.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:15:34,983 INFO L168 Benchmark]: RCFGBuilder took 294.82 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2018-12-09 10:15:34,983 INFO L168 Benchmark]: TraceAbstraction took 9826.75 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 417.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -61.1 MB). Peak memory consumption was 719.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:15:34,984 INFO L168 Benchmark]: Witness Printer took 52.40 ms. Allocated memory is still 1.6 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-12-09 10:15:34,985 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 280.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 294.82 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9826.75 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 417.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -61.1 MB). Peak memory consumption was 719.4 MB. Max. memory is 11.5 GB. * Witness Printer took 52.40 ms. Allocated memory is still 1.6 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. 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: 54]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: 1 - 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, 147 locations, 1 error locations. SAFE Result, 9.7s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 4.2s AutomataDifference, 0.0s DeadEndRemovalTime, 2.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 2052 SDtfs, 1209 SDslu, 5929 SDs, 0 SdLazy, 2084 SolverSat, 295 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 527 GetRequests, 426 SyntacticMatches, 6 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=981occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.3s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.996779096352169 AbsIntWeakeningRatio, 1.0686274509803921 AbsIntAvgWeakeningVarsNumRemoved, 83.32352941176471 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 86 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 1649 PreInvPairs, 1773 NumberOfFragments, 1694 HoareAnnotationTreeSize, 1649 FomulaSimplifications, 3564 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 62 FomulaSimplificationsInter, 11488 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1082 NumberOfCodeBlocks, 1082 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1224 ConstructedInterpolants, 0 QuantifiedInterpolants, 205634 SizeOfPredicates, 3 NumberOfNonLiveVariables, 878 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 153/159 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...