./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product57_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52d4df169e32a92349e61a4b5d4d731cb2f40ee9 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 23:45:17,038 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 23:45:17,039 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 23:45:17,047 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 23:45:17,048 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 23:45:17,048 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 23:45:17,049 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 23:45:17,050 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 23:45:17,052 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 23:45:17,052 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 23:45:17,053 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 23:45:17,053 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 23:45:17,054 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 23:45:17,054 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 23:45:17,055 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 23:45:17,056 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 23:45:17,057 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 23:45:17,058 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 23:45:17,059 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 23:45:17,060 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 23:45:17,061 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 23:45:17,062 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 23:45:17,064 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 23:45:17,064 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 23:45:17,064 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 23:45:17,065 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 23:45:17,065 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 23:45:17,066 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 23:45:17,067 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 23:45:17,067 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 23:45:17,068 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 23:45:17,068 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 23:45:17,068 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 23:45:17,068 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 23:45:17,069 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 23:45:17,069 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 23:45:17,070 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 23:45:17,080 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 23:45:17,080 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 23:45:17,080 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 23:45:17,081 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 23:45:17,081 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 23:45:17,081 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 23:45:17,081 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 23:45:17,081 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 23:45:17,081 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 23:45:17,081 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 23:45:17,082 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 23:45:17,082 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 23:45:17,082 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 23:45:17,082 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 23:45:17,083 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 23:45:17,083 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 23:45:17,083 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 23:45:17,083 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 23:45:17,083 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 23:45:17,083 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 23:45:17,083 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 23:45:17,084 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 23:45:17,084 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 23:45:17,084 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 23:45:17,084 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 23:45:17,084 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 23:45:17,084 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 23:45:17,084 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 23:45:17,084 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 23:45:17,085 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 23:45:17,085 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 23:45:17,085 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 23:45:17,085 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 23:45:17,085 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 23:45:17,085 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 23:45:17,085 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 23:45:17,085 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 23:45:17,085 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_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52d4df169e32a92349e61a4b5d4d731cb2f40ee9 [2018-11-22 23:45:17,108 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 23:45:17,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 23:45:17,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 23:45:17,120 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 23:45:17,120 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 23:45:17,120 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product57_true-unreach-call_false-termination.cil.c [2018-11-22 23:45:17,155 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/data/b28844668/e1e0a70e6388472d9c259d9c5aa28e7b/FLAG6c92a8ddd [2018-11-22 23:45:17,503 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 23:45:17,503 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/sv-benchmarks/c/product-lines/minepump_spec4_product57_true-unreach-call_false-termination.cil.c [2018-11-22 23:45:17,510 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/data/b28844668/e1e0a70e6388472d9c259d9c5aa28e7b/FLAG6c92a8ddd [2018-11-22 23:45:17,519 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/data/b28844668/e1e0a70e6388472d9c259d9c5aa28e7b [2018-11-22 23:45:17,521 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 23:45:17,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 23:45:17,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 23:45:17,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 23:45:17,526 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 23:45:17,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:45:17" (1/1) ... [2018-11-22 23:45:17,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f50e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17, skipping insertion in model container [2018-11-22 23:45:17,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:45:17" (1/1) ... [2018-11-22 23:45:17,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 23:45:17,568 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 23:45:17,765 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:45:17,774 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 23:45:17,875 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:45:17,892 INFO L195 MainTranslator]: Completed translation [2018-11-22 23:45:17,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17 WrapperNode [2018-11-22 23:45:17,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 23:45:17,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 23:45:17,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 23:45:17,893 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 23:45:17,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17" (1/1) ... [2018-11-22 23:45:17,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17" (1/1) ... [2018-11-22 23:45:17,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 23:45:17,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 23:45:17,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 23:45:17,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 23:45:17,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17" (1/1) ... [2018-11-22 23:45:17,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17" (1/1) ... [2018-11-22 23:45:17,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17" (1/1) ... [2018-11-22 23:45:17,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17" (1/1) ... [2018-11-22 23:45:17,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17" (1/1) ... [2018-11-22 23:45:17,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17" (1/1) ... [2018-11-22 23:45:17,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17" (1/1) ... [2018-11-22 23:45:17,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 23:45:17,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 23:45:17,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 23:45:17,944 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 23:45:17,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 23:45:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-22 23:45:17,980 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-22 23:45:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-22 23:45:17,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-22 23:45:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 23:45:17,980 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 23:45:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-22 23:45:17,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-22 23:45:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 23:45:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-22 23:45:17,981 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-22 23:45:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-22 23:45:17,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-22 23:45:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-22 23:45:17,981 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-22 23:45:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-22 23:45:17,981 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-22 23:45:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-22 23:45:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-22 23:45:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-22 23:45:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-22 23:45:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-22 23:45:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-22 23:45:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-22 23:45:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-22 23:45:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-22 23:45:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-22 23:45:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-22 23:45:17,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-22 23:45:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-22 23:45:17,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-22 23:45:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-22 23:45:17,983 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-22 23:45:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-22 23:45:17,983 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-22 23:45:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-22 23:45:17,983 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-22 23:45:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-22 23:45:17,983 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-22 23:45:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-22 23:45:17,984 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-22 23:45:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-22 23:45:17,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-22 23:45:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-22 23:45:17,984 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-22 23:45:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-22 23:45:17,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-22 23:45:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-22 23:45:17,984 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-22 23:45:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-22 23:45:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-22 23:45:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-22 23:45:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-22 23:45:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-22 23:45:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 23:45:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 23:45:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-22 23:45:17,986 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-22 23:45:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-22 23:45:17,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-22 23:45:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 23:45:17,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 23:45:18,409 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 23:45:18,410 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-22 23:45:18,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:45:18 BoogieIcfgContainer [2018-11-22 23:45:18,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 23:45:18,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 23:45:18,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 23:45:18,413 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 23:45:18,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:45:17" (1/3) ... [2018-11-22 23:45:18,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1ab54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:45:18, skipping insertion in model container [2018-11-22 23:45:18,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:45:17" (2/3) ... [2018-11-22 23:45:18,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1ab54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:45:18, skipping insertion in model container [2018-11-22 23:45:18,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:45:18" (3/3) ... [2018-11-22 23:45:18,416 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57_true-unreach-call_false-termination.cil.c [2018-11-22 23:45:18,424 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 23:45:18,428 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 23:45:18,439 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 23:45:18,463 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 23:45:18,463 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 23:45:18,464 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 23:45:18,464 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 23:45:18,464 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 23:45:18,464 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 23:45:18,464 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 23:45:18,464 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 23:45:18,476 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2018-11-22 23:45:18,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-22 23:45:18,483 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:18,484 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] [2018-11-22 23:45:18,486 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:18,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:18,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1585836956, now seen corresponding path program 1 times [2018-11-22 23:45:18,493 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:18,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:18,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:18,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:18,525 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:18,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:45:18,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:45:18,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 23:45:18,673 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:18,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-22 23:45:18,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-22 23:45:18,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 23:45:18,686 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 2 states. [2018-11-22 23:45:18,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:18,717 INFO L93 Difference]: Finished difference Result 286 states and 349 transitions. [2018-11-22 23:45:18,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-22 23:45:18,718 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-22 23:45:18,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:18,727 INFO L225 Difference]: With dead ends: 286 [2018-11-22 23:45:18,727 INFO L226 Difference]: Without dead ends: 143 [2018-11-22 23:45:18,731 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 [2018-11-22 23:45:18,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-11-22 23:45:18,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-11-22 23:45:18,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-11-22 23:45:18,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2018-11-22 23:45:18,768 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 46 [2018-11-22 23:45:18,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:18,768 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2018-11-22 23:45:18,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-22 23:45:18,768 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2018-11-22 23:45:18,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-22 23:45:18,771 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:18,771 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] [2018-11-22 23:45:18,771 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:18,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:18,771 INFO L82 PathProgramCache]: Analyzing trace with hash 215568744, now seen corresponding path program 1 times [2018-11-22 23:45:18,771 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:18,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:18,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:18,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:18,773 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:18,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:45:18,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:45:18,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 23:45:18,845 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:18,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 23:45:18,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 23:45:18,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 23:45:18,847 INFO L87 Difference]: Start difference. First operand 143 states and 166 transitions. Second operand 3 states. [2018-11-22 23:45:18,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:18,869 INFO L93 Difference]: Finished difference Result 235 states and 271 transitions. [2018-11-22 23:45:18,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 23:45:18,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-22 23:45:18,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:18,871 INFO L225 Difference]: With dead ends: 235 [2018-11-22 23:45:18,871 INFO L226 Difference]: Without dead ends: 134 [2018-11-22 23:45:18,872 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 [2018-11-22 23:45:18,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-22 23:45:18,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-11-22 23:45:18,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-22 23:45:18,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 154 transitions. [2018-11-22 23:45:18,883 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 154 transitions. Word has length 47 [2018-11-22 23:45:18,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:18,883 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 154 transitions. [2018-11-22 23:45:18,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 23:45:18,883 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 154 transitions. [2018-11-22 23:45:18,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-22 23:45:18,884 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:18,884 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:18,885 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:18,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:18,885 INFO L82 PathProgramCache]: Analyzing trace with hash -2137158565, now seen corresponding path program 1 times [2018-11-22 23:45:18,885 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:18,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:18,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:18,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:18,888 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:19,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:45:19,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:45:19,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-22 23:45:19,009 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:19,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 23:45:19,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 23:45:19,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-22 23:45:19,010 INFO L87 Difference]: Start difference. First operand 134 states and 154 transitions. Second operand 7 states. [2018-11-22 23:45:19,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:19,242 INFO L93 Difference]: Finished difference Result 244 states and 285 transitions. [2018-11-22 23:45:19,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 23:45:19,243 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-11-22 23:45:19,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:19,244 INFO L225 Difference]: With dead ends: 244 [2018-11-22 23:45:19,244 INFO L226 Difference]: Without dead ends: 134 [2018-11-22 23:45:19,244 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:45:19,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-22 23:45:19,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-11-22 23:45:19,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-22 23:45:19,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 153 transitions. [2018-11-22 23:45:19,255 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 153 transitions. Word has length 51 [2018-11-22 23:45:19,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:19,255 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 153 transitions. [2018-11-22 23:45:19,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 23:45:19,256 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 153 transitions. [2018-11-22 23:45:19,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-22 23:45:19,257 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:19,259 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:19,259 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:19,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:19,259 INFO L82 PathProgramCache]: Analyzing trace with hash 146173488, now seen corresponding path program 1 times [2018-11-22 23:45:19,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:19,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:19,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:19,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:19,262 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:19,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:45:19,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:45:19,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-22 23:45:19,340 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:19,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-22 23:45:19,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-22 23:45:19,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-22 23:45:19,341 INFO L87 Difference]: Start difference. First operand 134 states and 153 transitions. Second operand 5 states. [2018-11-22 23:45:19,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:19,641 INFO L93 Difference]: Finished difference Result 340 states and 405 transitions. [2018-11-22 23:45:19,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 23:45:19,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-11-22 23:45:19,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:19,644 INFO L225 Difference]: With dead ends: 340 [2018-11-22 23:45:19,644 INFO L226 Difference]: Without dead ends: 230 [2018-11-22 23:45:19,644 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-22 23:45:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-11-22 23:45:19,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 212. [2018-11-22 23:45:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-11-22 23:45:19,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 240 transitions. [2018-11-22 23:45:19,666 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 240 transitions. Word has length 64 [2018-11-22 23:45:19,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:19,667 INFO L480 AbstractCegarLoop]: Abstraction has 212 states and 240 transitions. [2018-11-22 23:45:19,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-22 23:45:19,667 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 240 transitions. [2018-11-22 23:45:19,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-11-22 23:45:19,669 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:19,669 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:19,670 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:19,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:19,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1166900812, now seen corresponding path program 1 times [2018-11-22 23:45:19,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:19,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:19,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:19,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:19,672 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:19,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:45:19,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:45:19,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-22 23:45:19,765 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:19,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-22 23:45:19,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-22 23:45:19,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:45:19,766 INFO L87 Difference]: Start difference. First operand 212 states and 240 transitions. Second operand 10 states. [2018-11-22 23:45:20,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:20,105 INFO L93 Difference]: Finished difference Result 686 states and 844 transitions. [2018-11-22 23:45:20,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-22 23:45:20,105 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2018-11-22 23:45:20,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:20,108 INFO L225 Difference]: With dead ends: 686 [2018-11-22 23:45:20,108 INFO L226 Difference]: Without dead ends: 498 [2018-11-22 23:45:20,109 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-22 23:45:20,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2018-11-22 23:45:20,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 488. [2018-11-22 23:45:20,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-11-22 23:45:20,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 571 transitions. [2018-11-22 23:45:20,137 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 571 transitions. Word has length 78 [2018-11-22 23:45:20,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:20,138 INFO L480 AbstractCegarLoop]: Abstraction has 488 states and 571 transitions. [2018-11-22 23:45:20,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-22 23:45:20,138 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 571 transitions. [2018-11-22 23:45:20,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-22 23:45:20,141 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:20,141 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:20,142 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:20,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:20,142 INFO L82 PathProgramCache]: Analyzing trace with hash -942496390, now seen corresponding path program 1 times [2018-11-22 23:45:20,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:20,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:20,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:20,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:20,143 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:20,219 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-22 23:45:20,219 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:20,219 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:45:20,220 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-11-22 23:45:20,221 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [59], [62], [64], [65], [80], [83], [84], [85], [94], [98], [102], [105], [110], [116], [118], [121], [136], [137], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [173], [174], [206], [210], [216], [224], [228], [231], [233], [236], [239], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [275], [277], [278], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318], [319], [320] [2018-11-22 23:45:20,246 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:45:20,246 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:45:20,525 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 23:45:20,526 INFO L272 AbstractInterpreter]: Visited 50 different actions 50 times. Never merged. Never widened. Performed 2047 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2047 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-22 23:45:20,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:20,542 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 23:45:20,752 INFO L227 lantSequenceWeakener]: Weakened 74 states. On average, predicates are now at 96.79% of their original sizes. [2018-11-22 23:45:20,752 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 23:45:20,820 INFO L415 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2018-11-22 23:45:20,820 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 23:45:20,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:45:20,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-11-22 23:45:20,821 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:20,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-22 23:45:20,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-22 23:45:20,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-11-22 23:45:20,822 INFO L87 Difference]: Start difference. First operand 488 states and 571 transitions. Second operand 14 states. [2018-11-22 23:45:22,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:22,901 INFO L93 Difference]: Finished difference Result 1303 states and 1577 transitions. [2018-11-22 23:45:22,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-22 23:45:22,901 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 152 [2018-11-22 23:45:22,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:22,905 INFO L225 Difference]: With dead ends: 1303 [2018-11-22 23:45:22,905 INFO L226 Difference]: Without dead ends: 839 [2018-11-22 23:45:22,907 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-11-22 23:45:22,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2018-11-22 23:45:22,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 819. [2018-11-22 23:45:22,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2018-11-22 23:45:22,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 958 transitions. [2018-11-22 23:45:22,952 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 958 transitions. Word has length 152 [2018-11-22 23:45:22,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:22,952 INFO L480 AbstractCegarLoop]: Abstraction has 819 states and 958 transitions. [2018-11-22 23:45:22,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-22 23:45:22,953 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 958 transitions. [2018-11-22 23:45:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-22 23:45:22,956 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:22,956 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:22,957 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:22,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:22,957 INFO L82 PathProgramCache]: Analyzing trace with hash -327376531, now seen corresponding path program 1 times [2018-11-22 23:45:22,957 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:22,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:22,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:22,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:22,959 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:23,055 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-22 23:45:23,055 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:23,055 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:45:23,055 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-11-22 23:45:23,056 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [110], [113], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [170], [172], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [287], [288], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-11-22 23:45:23,062 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:45:23,062 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:45:23,284 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 23:45:23,284 INFO L272 AbstractInterpreter]: Visited 61 different actions 83 times. Merged at 3 different actions 3 times. Never widened. Performed 4733 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4733 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-22 23:45:23,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:23,294 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 23:45:23,446 INFO L227 lantSequenceWeakener]: Weakened 74 states. On average, predicates are now at 96.6% of their original sizes. [2018-11-22 23:45:23,446 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 23:45:23,572 INFO L415 sIntCurrentIteration]: We unified 154 AI predicates to 154 [2018-11-22 23:45:23,572 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 23:45:23,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:45:23,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [5] total 23 [2018-11-22 23:45:23,573 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:23,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-22 23:45:23,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-22 23:45:23,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2018-11-22 23:45:23,573 INFO L87 Difference]: Start difference. First operand 819 states and 958 transitions. Second operand 20 states. [2018-11-22 23:45:27,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:27,609 INFO L93 Difference]: Finished difference Result 1804 states and 2201 transitions. [2018-11-22 23:45:27,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-22 23:45:27,609 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 155 [2018-11-22 23:45:27,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:27,614 INFO L225 Difference]: With dead ends: 1804 [2018-11-22 23:45:27,615 INFO L226 Difference]: Without dead ends: 1264 [2018-11-22 23:45:27,616 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 164 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=156, Invalid=714, Unknown=0, NotChecked=0, Total=870 [2018-11-22 23:45:27,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2018-11-22 23:45:27,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1222. [2018-11-22 23:45:27,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1222 states. [2018-11-22 23:45:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1420 transitions. [2018-11-22 23:45:27,681 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1420 transitions. Word has length 155 [2018-11-22 23:45:27,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:27,681 INFO L480 AbstractCegarLoop]: Abstraction has 1222 states and 1420 transitions. [2018-11-22 23:45:27,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-22 23:45:27,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1420 transitions. [2018-11-22 23:45:27,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-22 23:45:27,684 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:27,685 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:27,685 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:27,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:27,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1303253567, now seen corresponding path program 1 times [2018-11-22 23:45:27,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:27,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:27,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:27,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:27,688 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-22 23:45:27,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:45:27,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 23:45:27,772 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:27,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:45:27,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:45:27,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:45:27,773 INFO L87 Difference]: Start difference. First operand 1222 states and 1420 transitions. Second operand 6 states. [2018-11-22 23:45:27,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:27,836 INFO L93 Difference]: Finished difference Result 1583 states and 1853 transitions. [2018-11-22 23:45:27,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 23:45:27,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2018-11-22 23:45:27,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:27,841 INFO L225 Difference]: With dead ends: 1583 [2018-11-22 23:45:27,841 INFO L226 Difference]: Without dead ends: 1232 [2018-11-22 23:45:27,843 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 [2018-11-22 23:45:27,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2018-11-22 23:45:27,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1232. [2018-11-22 23:45:27,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1232 states. [2018-11-22 23:45:27,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1430 transitions. [2018-11-22 23:45:27,899 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1430 transitions. Word has length 147 [2018-11-22 23:45:27,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:27,900 INFO L480 AbstractCegarLoop]: Abstraction has 1232 states and 1430 transitions. [2018-11-22 23:45:27,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:45:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1430 transitions. [2018-11-22 23:45:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-22 23:45:27,902 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:27,903 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:27,903 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:27,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:27,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1667173282, now seen corresponding path program 1 times [2018-11-22 23:45:27,903 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:27,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:27,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:27,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:27,904 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:27,962 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-22 23:45:27,963 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:27,963 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:45:27,963 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-11-22 23:45:27,964 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-11-22 23:45:27,968 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:45:27,968 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:45:29,145 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:45:29,146 INFO L272 AbstractInterpreter]: Visited 127 different actions 680 times. Merged at 18 different actions 54 times. Never widened. Performed 25197 root evaluator evaluations with a maximum evaluation depth of 5. Performed 25197 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 10 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-22 23:45:29,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:29,148 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:45:29,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:29,148 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:45:29,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:29,154 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:45:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:29,266 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:45:29,438 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-22 23:45:29,438 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:45:29,850 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-22 23:45:29,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:45:29,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 10] total 19 [2018-11-22 23:45:29,876 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:29,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-22 23:45:29,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-22 23:45:29,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-11-22 23:45:29,876 INFO L87 Difference]: Start difference. First operand 1232 states and 1430 transitions. Second operand 11 states. [2018-11-22 23:45:30,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:30,667 INFO L93 Difference]: Finished difference Result 1810 states and 2235 transitions. [2018-11-22 23:45:30,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-22 23:45:30,668 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2018-11-22 23:45:30,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:30,677 INFO L225 Difference]: With dead ends: 1810 [2018-11-22 23:45:30,677 INFO L226 Difference]: Without dead ends: 1449 [2018-11-22 23:45:30,679 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 272 SyntacticMatches, 12 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2018-11-22 23:45:30,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2018-11-22 23:45:30,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1361. [2018-11-22 23:45:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1361 states. [2018-11-22 23:45:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1593 transitions. [2018-11-22 23:45:30,763 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1593 transitions. Word has length 147 [2018-11-22 23:45:30,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:30,764 INFO L480 AbstractCegarLoop]: Abstraction has 1361 states and 1593 transitions. [2018-11-22 23:45:30,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-22 23:45:30,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1593 transitions. [2018-11-22 23:45:30,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-22 23:45:30,767 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:30,767 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:30,767 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:30,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:30,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1236990080, now seen corresponding path program 1 times [2018-11-22 23:45:30,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:30,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:30,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:30,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:30,769 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:30,871 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-22 23:45:30,872 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:30,872 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:45:30,872 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-11-22 23:45:30,872 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [113], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [170], [172], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-11-22 23:45:30,876 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:45:30,876 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:45:31,766 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:45:31,766 INFO L272 AbstractInterpreter]: Visited 118 different actions 646 times. Merged at 16 different actions 41 times. Never widened. Performed 25236 root evaluator evaluations with a maximum evaluation depth of 5. Performed 25236 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 7 fixpoints after 2 different actions. Largest state had 132 variables. [2018-11-22 23:45:31,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:31,774 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:45:31,774 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:31,774 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:45:31,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:31,785 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:45:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:31,873 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:45:31,957 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 23:45:31,957 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:45:32,564 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-22 23:45:32,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:45:32,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 18 [2018-11-22 23:45:32,580 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:32,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-22 23:45:32,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-22 23:45:32,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-11-22 23:45:32,581 INFO L87 Difference]: Start difference. First operand 1361 states and 1593 transitions. Second operand 8 states. [2018-11-22 23:45:32,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:32,767 INFO L93 Difference]: Finished difference Result 3270 states and 3893 transitions. [2018-11-22 23:45:32,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 23:45:32,768 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 147 [2018-11-22 23:45:32,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:32,773 INFO L225 Difference]: With dead ends: 3270 [2018-11-22 23:45:32,773 INFO L226 Difference]: Without dead ends: 1933 [2018-11-22 23:45:32,776 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 275 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-11-22 23:45:32,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2018-11-22 23:45:32,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1926. [2018-11-22 23:45:32,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1926 states. [2018-11-22 23:45:32,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2238 transitions. [2018-11-22 23:45:32,837 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2238 transitions. Word has length 147 [2018-11-22 23:45:32,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:32,837 INFO L480 AbstractCegarLoop]: Abstraction has 1926 states and 2238 transitions. [2018-11-22 23:45:32,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-22 23:45:32,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2238 transitions. [2018-11-22 23:45:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-22 23:45:32,840 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:32,841 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:32,841 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:32,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:32,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1184087132, now seen corresponding path program 1 times [2018-11-22 23:45:32,841 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:32,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:32,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:32,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:32,842 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:32,893 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-22 23:45:32,893 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:32,893 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:45:32,893 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-11-22 23:45:32,894 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-11-22 23:45:32,895 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:45:32,895 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:45:33,160 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:45:33,160 INFO L272 AbstractInterpreter]: Visited 113 different actions 256 times. Merged at 14 different actions 14 times. Never widened. Performed 7822 root evaluator evaluations with a maximum evaluation depth of 5. Performed 7822 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 2 fixpoints after 1 different actions. Largest state had 132 variables. [2018-11-22 23:45:33,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:33,161 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:45:33,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:33,161 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:45:33,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:33,170 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:45:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:33,270 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:45:33,317 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 23:45:33,318 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:45:33,462 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-22 23:45:33,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:45:33,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-22 23:45:33,478 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:33,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:45:33,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:45:33,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:45:33,479 INFO L87 Difference]: Start difference. First operand 1926 states and 2238 transitions. Second operand 6 states. [2018-11-22 23:45:33,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:33,571 INFO L93 Difference]: Finished difference Result 3919 states and 4646 transitions. [2018-11-22 23:45:33,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 23:45:33,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-11-22 23:45:33,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:33,580 INFO L225 Difference]: With dead ends: 3919 [2018-11-22 23:45:33,580 INFO L226 Difference]: Without dead ends: 2017 [2018-11-22 23:45:33,585 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 283 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-22 23:45:33,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2018-11-22 23:45:33,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 1981. [2018-11-22 23:45:33,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2018-11-22 23:45:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2297 transitions. [2018-11-22 23:45:33,685 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2297 transitions. Word has length 143 [2018-11-22 23:45:33,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:33,685 INFO L480 AbstractCegarLoop]: Abstraction has 1981 states and 2297 transitions. [2018-11-22 23:45:33,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:45:33,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2297 transitions. [2018-11-22 23:45:33,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-22 23:45:33,688 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:33,689 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:33,689 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:33,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:33,689 INFO L82 PathProgramCache]: Analyzing trace with hash -434887782, now seen corresponding path program 1 times [2018-11-22 23:45:33,689 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:33,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:33,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:33,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:33,690 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:33,799 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-22 23:45:33,799 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:33,799 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:45:33,799 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-11-22 23:45:33,800 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-11-22 23:45:33,803 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:45:33,804 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:45:33,902 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 23:45:33,902 INFO L272 AbstractInterpreter]: Visited 52 different actions 52 times. Never merged. Never widened. Performed 1933 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1933 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-22 23:45:33,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:33,906 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 23:45:34,033 INFO L227 lantSequenceWeakener]: Weakened 62 states. On average, predicates are now at 96.57% of their original sizes. [2018-11-22 23:45:34,033 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 23:45:34,094 INFO L415 sIntCurrentIteration]: We unified 142 AI predicates to 142 [2018-11-22 23:45:34,094 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 23:45:34,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:45:34,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2018-11-22 23:45:34,095 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:34,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-22 23:45:34,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-22 23:45:34,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-11-22 23:45:34,095 INFO L87 Difference]: Start difference. First operand 1981 states and 2297 transitions. Second operand 14 states. [2018-11-22 23:45:35,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:35,425 INFO L93 Difference]: Finished difference Result 3718 states and 4317 transitions. [2018-11-22 23:45:35,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-22 23:45:35,425 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 143 [2018-11-22 23:45:35,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:35,430 INFO L225 Difference]: With dead ends: 3718 [2018-11-22 23:45:35,430 INFO L226 Difference]: Without dead ends: 1761 [2018-11-22 23:45:35,434 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2018-11-22 23:45:35,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2018-11-22 23:45:35,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1761. [2018-11-22 23:45:35,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1761 states. [2018-11-22 23:45:35,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 2036 transitions. [2018-11-22 23:45:35,497 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 2036 transitions. Word has length 143 [2018-11-22 23:45:35,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:35,497 INFO L480 AbstractCegarLoop]: Abstraction has 1761 states and 2036 transitions. [2018-11-22 23:45:35,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-22 23:45:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 2036 transitions. [2018-11-22 23:45:35,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-11-22 23:45:35,501 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:35,501 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:35,501 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:35,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:35,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1329435348, now seen corresponding path program 1 times [2018-11-22 23:45:35,502 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:35,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:35,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:35,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:35,502 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:35,594 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 43 proven. 11 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-11-22 23:45:35,594 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:35,594 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:45:35,594 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-11-22 23:45:35,595 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [243], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [283], [284], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318], [321], [322] [2018-11-22 23:45:35,596 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:45:35,596 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:45:36,583 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:45:36,583 INFO L272 AbstractInterpreter]: Visited 135 different actions 722 times. Merged at 22 different actions 72 times. Never widened. Performed 25846 root evaluator evaluations with a maximum evaluation depth of 5. Performed 25846 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-22 23:45:36,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:36,586 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:45:36,586 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:36,586 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:45:36,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:36,595 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:45:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:36,666 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:45:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 79 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 23:45:36,777 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:45:37,149 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 47 proven. 23 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-22 23:45:37,164 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:45:37,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2018-11-22 23:45:37,165 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:45:37,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-22 23:45:37,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-22 23:45:37,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2018-11-22 23:45:37,166 INFO L87 Difference]: Start difference. First operand 1761 states and 2036 transitions. Second operand 16 states. [2018-11-22 23:45:38,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:38,437 INFO L93 Difference]: Finished difference Result 3862 states and 4762 transitions. [2018-11-22 23:45:38,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-22 23:45:38,438 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 200 [2018-11-22 23:45:38,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:38,449 INFO L225 Difference]: With dead ends: 3862 [2018-11-22 23:45:38,449 INFO L226 Difference]: Without dead ends: 2925 [2018-11-22 23:45:38,453 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 393 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2018-11-22 23:45:38,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2018-11-22 23:45:38,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2655. [2018-11-22 23:45:38,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2655 states. [2018-11-22 23:45:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 3068 transitions. [2018-11-22 23:45:38,611 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 3068 transitions. Word has length 200 [2018-11-22 23:45:38,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:38,611 INFO L480 AbstractCegarLoop]: Abstraction has 2655 states and 3068 transitions. [2018-11-22 23:45:38,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-22 23:45:38,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 3068 transitions. [2018-11-22 23:45:38,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-11-22 23:45:38,616 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:38,617 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:38,617 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:38,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:38,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1907693870, now seen corresponding path program 1 times [2018-11-22 23:45:38,617 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:38,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:38,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:38,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:38,618 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-11-22 23:45:38,717 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:38,718 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:45:38,718 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-11-22 23:45:38,718 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [243], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [283], [284], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318], [321], [322] [2018-11-22 23:45:38,721 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:45:38,722 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:45:39,597 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:45:39,597 INFO L272 AbstractInterpreter]: Visited 134 different actions 677 times. Merged at 19 different actions 62 times. Never widened. Performed 25160 root evaluator evaluations with a maximum evaluation depth of 5. Performed 25160 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 13 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-22 23:45:39,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:39,602 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:45:39,602 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:39,602 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:45:39,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:39,607 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:45:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:39,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:45:39,740 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-22 23:45:39,741 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:45:39,967 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-11-22 23:45:39,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:45:39,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-22 23:45:39,983 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:39,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:45:39,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:45:39,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-22 23:45:39,984 INFO L87 Difference]: Start difference. First operand 2655 states and 3068 transitions. Second operand 6 states. [2018-11-22 23:45:40,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:40,075 INFO L93 Difference]: Finished difference Result 4292 states and 5016 transitions. [2018-11-22 23:45:40,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 23:45:40,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2018-11-22 23:45:40,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:40,084 INFO L225 Difference]: With dead ends: 4292 [2018-11-22 23:45:40,084 INFO L226 Difference]: Without dead ends: 2469 [2018-11-22 23:45:40,088 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 395 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-22 23:45:40,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2018-11-22 23:45:40,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2469. [2018-11-22 23:45:40,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2469 states. [2018-11-22 23:45:40,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2469 states to 2469 states and 2845 transitions. [2018-11-22 23:45:40,215 INFO L78 Accepts]: Start accepts. Automaton has 2469 states and 2845 transitions. Word has length 200 [2018-11-22 23:45:40,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:40,216 INFO L480 AbstractCegarLoop]: Abstraction has 2469 states and 2845 transitions. [2018-11-22 23:45:40,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:45:40,216 INFO L276 IsEmpty]: Start isEmpty. Operand 2469 states and 2845 transitions. [2018-11-22 23:45:40,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-11-22 23:45:40,223 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:45:40,224 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:45:40,224 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:45:40,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:40,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1278825688, now seen corresponding path program 1 times [2018-11-22 23:45:40,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:45:40,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:40,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:40,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:45:40,225 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:45:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:40,327 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-11-22 23:45:40,328 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:40,328 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:45:40,328 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-11-22 23:45:40,328 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [63], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-11-22 23:45:40,332 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:45:40,333 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:45:41,231 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:45:41,231 INFO L272 AbstractInterpreter]: Visited 128 different actions 673 times. Merged at 22 different actions 84 times. Never widened. Performed 26962 root evaluator evaluations with a maximum evaluation depth of 5. Performed 26962 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 10 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-22 23:45:41,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:45:41,233 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:45:41,233 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:45:41,233 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:45:41,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:45:41,239 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:45:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:45:41,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:45:41,373 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-22 23:45:41,373 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:45:41,607 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-11-22 23:45:41,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:45:41,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-22 23:45:41,623 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:45:41,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-22 23:45:41,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-22 23:45:41,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-22 23:45:41,624 INFO L87 Difference]: Start difference. First operand 2469 states and 2845 transitions. Second operand 5 states. [2018-11-22 23:45:41,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:45:41,700 INFO L93 Difference]: Finished difference Result 3695 states and 4236 transitions. [2018-11-22 23:45:41,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-22 23:45:41,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 262 [2018-11-22 23:45:41,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:45:41,702 INFO L225 Difference]: With dead ends: 3695 [2018-11-22 23:45:41,702 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 23:45:41,708 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 521 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-22 23:45:41,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 23:45:41,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 23:45:41,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 23:45:41,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 23:45:41,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 262 [2018-11-22 23:45:41,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:45:41,709 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:45:41,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-22 23:45:41,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 23:45:41,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 23:45:41,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-22 23:45:41,918 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:41,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:41,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:41,925 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:41,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:41,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:41,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,063 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,163 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,163 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,267 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,282 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,306 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,306 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,314 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,446 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,456 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:45:42,794 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 11 [2018-11-22 23:45:43,385 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 34 [2018-11-22 23:45:43,762 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 37 [2018-11-22 23:45:44,516 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 26 [2018-11-22 23:45:45,028 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 486 492) the Hoare annotation is: true [2018-11-22 23:45:45,028 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 486 492) no Hoare annotation was computed. [2018-11-22 23:45:45,028 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 493 501) no Hoare annotation was computed. [2018-11-22 23:45:45,028 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 493 501) the Hoare annotation is: true [2018-11-22 23:45:45,028 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 493 501) no Hoare annotation was computed. [2018-11-22 23:45:45,028 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 336 360) the Hoare annotation is: true [2018-11-22 23:45:45,028 INFO L444 ceAbstractionStarter]: At program point L350(line 350) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or (< ~waterLevel~0 2) .cse0))) [2018-11-22 23:45:45,028 INFO L448 ceAbstractionStarter]: For program point L348(lines 348 354) no Hoare annotation was computed. [2018-11-22 23:45:45,029 INFO L444 ceAbstractionStarter]: At program point L346(line 346) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or (< ~waterLevel~0 2) .cse0))) [2018-11-22 23:45:45,029 INFO L448 ceAbstractionStarter]: For program point L346-1(line 346) no Hoare annotation was computed. [2018-11-22 23:45:45,029 INFO L448 ceAbstractionStarter]: For program point L344(lines 344 357) no Hoare annotation was computed. [2018-11-22 23:45:45,029 INFO L448 ceAbstractionStarter]: For program point L344-1(lines 336 360) no Hoare annotation was computed. [2018-11-22 23:45:45,029 INFO L451 ceAbstractionStarter]: At program point L342(line 342) the Hoare annotation is: true [2018-11-22 23:45:45,029 INFO L448 ceAbstractionStarter]: For program point L342-1(line 342) no Hoare annotation was computed. [2018-11-22 23:45:45,029 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 336 360) no Hoare annotation was computed. [2018-11-22 23:45:45,029 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 575 597) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-22 23:45:45,029 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 575 597) no Hoare annotation was computed. [2018-11-22 23:45:45,030 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 575 597) no Hoare annotation was computed. [2018-11-22 23:45:45,030 INFO L444 ceAbstractionStarter]: At program point L587(line 587) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-22 23:45:45,030 INFO L444 ceAbstractionStarter]: At program point L587-1(line 587) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-22 23:45:45,030 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 592) no Hoare annotation was computed. [2018-11-22 23:45:45,030 INFO L448 ceAbstractionStarter]: For program point L585-1(lines 585 592) no Hoare annotation was computed. [2018-11-22 23:45:45,030 INFO L448 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2018-11-22 23:45:45,030 INFO L444 ceAbstractionStarter]: At program point L582(line 582) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-22 23:45:45,030 INFO L444 ceAbstractionStarter]: At program point L581(line 581) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-22 23:45:45,030 INFO L444 ceAbstractionStarter]: At program point L581-1(line 581) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-22 23:45:45,030 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 250 258) no Hoare annotation was computed. [2018-11-22 23:45:45,031 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 250 258) the Hoare annotation is: true [2018-11-22 23:45:45,031 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 250 258) no Hoare annotation was computed. [2018-11-22 23:45:45,031 INFO L451 ceAbstractionStarter]: At program point L321(line 321) the Hoare annotation is: true [2018-11-22 23:45:45,031 INFO L448 ceAbstractionStarter]: For program point L323-2(lines 323 327) no Hoare annotation was computed. [2018-11-22 23:45:45,031 INFO L448 ceAbstractionStarter]: For program point L321-1(line 321) no Hoare annotation was computed. [2018-11-22 23:45:45,031 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 314 332) the Hoare annotation is: true [2018-11-22 23:45:45,031 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 314 332) no Hoare annotation was computed. [2018-11-22 23:45:45,031 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 327) no Hoare annotation was computed. [2018-11-22 23:45:45,031 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 314 332) no Hoare annotation was computed. [2018-11-22 23:45:45,031 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 479 485) no Hoare annotation was computed. [2018-11-22 23:45:45,031 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 479 485) the Hoare annotation is: true [2018-11-22 23:45:45,032 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 565 574) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-22 23:45:45,032 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 565 574) no Hoare annotation was computed. [2018-11-22 23:45:45,032 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 565 574) no Hoare annotation was computed. [2018-11-22 23:45:45,032 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 239 249) the Hoare annotation is: true [2018-11-22 23:45:45,032 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 239 249) no Hoare annotation was computed. [2018-11-22 23:45:45,032 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 239 249) no Hoare annotation was computed. [2018-11-22 23:45:45,032 INFO L451 ceAbstractionStarter]: At program point L244(line 244) the Hoare annotation is: true [2018-11-22 23:45:45,032 INFO L448 ceAbstractionStarter]: For program point L244-1(line 244) no Hoare annotation was computed. [2018-11-22 23:45:45,032 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 231 238) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1))) [2018-11-22 23:45:45,032 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 231 238) no Hoare annotation was computed. [2018-11-22 23:45:45,032 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 231 238) no Hoare annotation was computed. [2018-11-22 23:45:45,033 INFO L448 ceAbstractionStarter]: For program point L445(lines 445 451) no Hoare annotation was computed. [2018-11-22 23:45:45,033 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 441 454) no Hoare annotation was computed. [2018-11-22 23:45:45,033 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 441 454) the Hoare annotation is: true [2018-11-22 23:45:45,033 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 441 454) no Hoare annotation was computed. [2018-11-22 23:45:45,033 INFO L444 ceAbstractionStarter]: At program point L190(line 190) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (<= 1 processEnvironment_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-22 23:45:45,033 INFO L448 ceAbstractionStarter]: For program point L188(lines 188 196) no Hoare annotation was computed. [2018-11-22 23:45:45,033 INFO L444 ceAbstractionStarter]: At program point L186(line 186) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-11-22 23:45:45,033 INFO L448 ceAbstractionStarter]: For program point L186-1(line 186) no Hoare annotation was computed. [2018-11-22 23:45:45,033 INFO L448 ceAbstractionStarter]: For program point L184(lines 184 201) no Hoare annotation was computed. [2018-11-22 23:45:45,033 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 180 204) no Hoare annotation was computed. [2018-11-22 23:45:45,034 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 180 204) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-22 23:45:45,034 INFO L444 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1))) [2018-11-22 23:45:45,034 INFO L448 ceAbstractionStarter]: For program point L199-1(lines 180 204) no Hoare annotation was computed. [2018-11-22 23:45:45,034 INFO L444 ceAbstractionStarter]: At program point L194(line 194) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-22 23:45:45,034 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 146 152) no Hoare annotation was computed. [2018-11-22 23:45:45,034 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 146 152) the Hoare annotation is: true [2018-11-22 23:45:45,034 INFO L444 ceAbstractionStarter]: At program point L97(lines 54 99) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-22 23:45:45,034 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 70) no Hoare annotation was computed. [2018-11-22 23:45:45,034 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 44 107) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-22 23:45:45,034 INFO L448 ceAbstractionStarter]: For program point L64-1(lines 64 70) no Hoare annotation was computed. [2018-11-22 23:45:45,035 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2018-11-22 23:45:45,035 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 44 107) no Hoare annotation was computed. [2018-11-22 23:45:45,035 INFO L444 ceAbstractionStarter]: At program point L100(lines 53 101) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-22 23:45:45,035 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2018-11-22 23:45:45,035 INFO L444 ceAbstractionStarter]: At program point L90-2(lines 84 95) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-22 23:45:45,035 INFO L448 ceAbstractionStarter]: For program point L55(lines 54 99) no Hoare annotation was computed. [2018-11-22 23:45:45,035 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 95) no Hoare annotation was computed. [2018-11-22 23:45:45,035 INFO L444 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-22 23:45:45,035 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 80) no Hoare annotation was computed. [2018-11-22 23:45:45,035 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2018-11-22 23:45:45,036 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 44 107) no Hoare annotation was computed. [2018-11-22 23:45:45,036 INFO L444 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-22 23:45:45,036 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 205 212) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) (< ~waterLevel~0 2)) [2018-11-22 23:45:45,036 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 205 212) no Hoare annotation was computed. [2018-11-22 23:45:45,036 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 205 212) no Hoare annotation was computed. [2018-11-22 23:45:45,036 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 455 463) no Hoare annotation was computed. [2018-11-22 23:45:45,036 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 455 463) the Hoare annotation is: true [2018-11-22 23:45:45,036 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 455 463) no Hoare annotation was computed. [2018-11-22 23:45:45,036 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-22 23:45:45,036 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-22 23:45:45,037 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-22 23:45:45,037 INFO L444 ceAbstractionStarter]: At program point L225(line 225) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-11-22 23:45:45,037 INFO L448 ceAbstractionStarter]: For program point L225-1(lines 214 230) no Hoare annotation was computed. [2018-11-22 23:45:45,037 INFO L448 ceAbstractionStarter]: For program point L221(lines 221 227) no Hoare annotation was computed. [2018-11-22 23:45:45,037 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 214 230) no Hoare annotation was computed. [2018-11-22 23:45:45,037 INFO L444 ceAbstractionStarter]: At program point L219(line 219) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-22 23:45:45,037 INFO L448 ceAbstractionStarter]: For program point L219-1(line 219) no Hoare annotation was computed. [2018-11-22 23:45:45,037 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 214 230) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-22 23:45:45,037 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 432 440) the Hoare annotation is: true [2018-11-22 23:45:45,037 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 432 440) no Hoare annotation was computed. [2018-11-22 23:45:45,037 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 432 440) no Hoare annotation was computed. [2018-11-22 23:45:45,038 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 295 313) no Hoare annotation was computed. [2018-11-22 23:45:45,038 INFO L448 ceAbstractionStarter]: For program point L304(lines 304 308) no Hoare annotation was computed. [2018-11-22 23:45:45,038 INFO L451 ceAbstractionStarter]: At program point L302(line 302) the Hoare annotation is: true [2018-11-22 23:45:45,038 INFO L448 ceAbstractionStarter]: For program point L304-2(lines 304 308) no Hoare annotation was computed. [2018-11-22 23:45:45,038 INFO L448 ceAbstractionStarter]: For program point L302-1(line 302) no Hoare annotation was computed. [2018-11-22 23:45:45,038 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 295 313) the Hoare annotation is: true [2018-11-22 23:45:45,038 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 295 313) no Hoare annotation was computed. [2018-11-22 23:45:45,038 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 388 399) the Hoare annotation is: (let ((.cse4 (not (= ~waterLevel~0 1))) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse7 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse5 (not (= ~waterLevel~0 2))) (.cse0 (< |old(~methaneLevelCritical~0)| 1)) (.cse1 (not (= 0 ~pumpRunning~0))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (<= 1 ~methaneLevelCritical~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (or (not (= |old(~methaneLevelCritical~0)| 1)) .cse5) (or .cse6 (= ~methaneLevelCritical~0 1)) .cse3) (or .cse1 .cse6 .cse3 .cse4 .cse7) (or .cse6 .cse3 .cse7 .cse5) (or (or .cse0 (or .cse1 (< ~waterLevel~0 2) .cse3)) .cse2))) [2018-11-22 23:45:45,038 INFO L448 ceAbstractionStarter]: For program point L392-1(lines 388 399) no Hoare annotation was computed. [2018-11-22 23:45:45,038 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 388 399) no Hoare annotation was computed. [2018-11-22 23:45:45,039 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 400 408) the Hoare annotation is: true [2018-11-22 23:45:45,039 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 400 408) no Hoare annotation was computed. [2018-11-22 23:45:45,039 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 400 408) no Hoare annotation was computed. [2018-11-22 23:45:45,039 INFO L451 ceAbstractionStarter]: At program point L514-2(lines 514 528) the Hoare annotation is: true [2018-11-22 23:45:45,039 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 504 533) no Hoare annotation was computed. [2018-11-22 23:45:45,039 INFO L451 ceAbstractionStarter]: At program point L510(line 510) the Hoare annotation is: true [2018-11-22 23:45:45,039 INFO L448 ceAbstractionStarter]: For program point L510-1(line 510) no Hoare annotation was computed. [2018-11-22 23:45:45,039 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 504 533) the Hoare annotation is: true [2018-11-22 23:45:45,039 INFO L451 ceAbstractionStarter]: At program point L529(lines 504 533) the Hoare annotation is: true [2018-11-22 23:45:45,039 INFO L448 ceAbstractionStarter]: For program point L525(line 525) no Hoare annotation was computed. [2018-11-22 23:45:45,039 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 522) no Hoare annotation was computed. [2018-11-22 23:45:45,039 INFO L451 ceAbstractionStarter]: At program point L518-1(lines 518 522) the Hoare annotation is: true [2018-11-22 23:45:45,040 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-22 23:45:45,040 INFO L444 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (or (< |old(~waterLevel~0)| 2) .cse0) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse0))) [2018-11-22 23:45:45,040 INFO L448 ceAbstractionStarter]: For program point L126(lines 125 144) no Hoare annotation was computed. [2018-11-22 23:45:45,040 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 122 145) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse1 .cse0))) [2018-11-22 23:45:45,040 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 122 145) no Hoare annotation was computed. [2018-11-22 23:45:45,040 INFO L444 ceAbstractionStarter]: At program point L135(line 135) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse1)) (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse1) (or (< |old(~waterLevel~0)| 2) .cse0)))) [2018-11-22 23:45:45,040 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 122 145) no Hoare annotation was computed. [2018-11-22 23:45:45,040 INFO L444 ceAbstractionStarter]: At program point L133(lines 133 139) the Hoare annotation is: (let ((.cse5 (= ~systemActive~0 1))) (let ((.cse3 (not .cse5)) (.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (and (<= 2 ~waterLevel~0) .cse4 .cse5)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (or (< |old(~waterLevel~0)| 2) .cse3))) (and (or .cse0 (or (< ~methaneLevelCritical~0 1) .cse1)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse2 (< |old(~waterLevel~0)| 1) .cse3 (and .cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse2 (and .cse0 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse1))))) [2018-11-22 23:45:45,040 INFO L448 ceAbstractionStarter]: For program point L368-1(lines 364 375) no Hoare annotation was computed. [2018-11-22 23:45:45,041 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 364 375) the Hoare annotation is: (or (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1))) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-11-22 23:45:45,041 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 364 375) no Hoare annotation was computed. [2018-11-22 23:45:45,041 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 558 564) no Hoare annotation was computed. [2018-11-22 23:45:45,041 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 558 564) the Hoare annotation is: true [2018-11-22 23:45:45,041 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-22 23:45:45,041 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-22 23:45:45,041 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-22 23:45:45,041 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-22 23:45:45,041 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 154 178) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-22 23:45:45,049 INFO L444 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-22 23:45:45,049 INFO L448 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2018-11-22 23:45:45,049 INFO L448 ceAbstractionStarter]: For program point L158(lines 158 175) no Hoare annotation was computed. [2018-11-22 23:45:45,049 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 154 178) no Hoare annotation was computed. [2018-11-22 23:45:45,049 INFO L444 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-22 23:45:45,049 INFO L448 ceAbstractionStarter]: For program point L173-1(lines 154 178) no Hoare annotation was computed. [2018-11-22 23:45:45,050 INFO L444 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: (or (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-22 23:45:45,050 INFO L444 ceAbstractionStarter]: At program point L164(line 164) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-22 23:45:45,050 INFO L448 ceAbstractionStarter]: For program point L162(lines 162 170) no Hoare annotation was computed. [2018-11-22 23:45:45,050 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 376 387) no Hoare annotation was computed. [2018-11-22 23:45:45,050 INFO L448 ceAbstractionStarter]: For program point L380-1(lines 376 387) no Hoare annotation was computed. [2018-11-22 23:45:45,050 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 376 387) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (< |old(~waterLevel~0)| 2)) (or (< |old(~waterLevel~0)| 1) .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1)))) [2018-11-22 23:45:45,050 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 965 972) no Hoare annotation was computed. [2018-11-22 23:45:45,050 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 965 972) the Hoare annotation is: true [2018-11-22 23:45:45,050 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2018-11-22 23:45:45,051 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 965 972) no Hoare annotation was computed. [2018-11-22 23:45:45,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 11:45:45 BoogieIcfgContainer [2018-11-22 23:45:45,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 23:45:45,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 23:45:45,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 23:45:45,065 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 23:45:45,073 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:45:18" (3/4) ... [2018-11-22 23:45:45,076 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 23:45:45,083 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-22 23:45:45,083 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-22 23:45:45,083 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-22 23:45:45,083 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-22 23:45:45,083 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-22 23:45:45,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-22 23:45:45,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-22 23:45:45,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-22 23:45:45,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-22 23:45:45,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-22 23:45:45,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-22 23:45:45,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-22 23:45:45,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-22 23:45:45,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-22 23:45:45,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-22 23:45:45,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-22 23:45:45,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-22 23:45:45,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-22 23:45:45,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-22 23:45:45,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-22 23:45:45,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-22 23:45:45,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-22 23:45:45,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-22 23:45:45,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-22 23:45:45,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-22 23:45:45,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-22 23:45:45,086 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-22 23:45:45,086 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-22 23:45:45,086 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-22 23:45:45,094 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-11-22 23:45:45,094 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-22 23:45:45,095 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-22 23:45:45,095 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-22 23:45:45,095 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-22 23:45:45,095 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-22 23:45:45,096 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-22 23:45:45,115 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (2 <= waterLevel && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-22 23:45:45,115 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-22 23:45:45,148 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7a6aaee6-ad7d-486f-ad1c-1c4cd6f91fae/bin-2019/utaipan/witness.graphml [2018-11-22 23:45:45,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 23:45:45,149 INFO L168 Benchmark]: Toolchain (without parser) took 27627.78 ms. Allocated memory was 1.0 GB in the beginning and 2.5 GB in the end (delta: 1.5 GB). Free memory was 955.3 MB in the beginning and 842.9 MB in the end (delta: 112.5 MB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. [2018-11-22 23:45:45,150 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:45:45,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -165.8 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-22 23:45:45,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.78 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. [2018-11-22 23:45:45,151 INFO L168 Benchmark]: Boogie Preprocessor took 29.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-22 23:45:45,151 INFO L168 Benchmark]: RCFGBuilder took 465.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 11.5 GB. [2018-11-22 23:45:45,152 INFO L168 Benchmark]: TraceAbstraction took 26653.99 ms. Allocated memory was 1.2 GB in the beginning and 2.5 GB in the end (delta: 1.3 GB). Free memory was 1.1 GB in the beginning and 842.9 MB in the end (delta: 223.2 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-22 23:45:45,152 INFO L168 Benchmark]: Witness Printer took 83.66 ms. Allocated memory is still 2.5 GB. Free memory is still 842.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:45:45,153 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 369.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -165.8 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.78 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 29.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 465.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26653.99 ms. Allocated memory was 1.2 GB in the beginning and 2.5 GB in the end (delta: 1.3 GB). Free memory was 1.1 GB in the beginning and 842.9 MB in the end (delta: 223.2 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. * Witness Printer took 83.66 ms. Allocated memory is still 2.5 GB. Free memory is still 842.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 969]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (2 <= waterLevel && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 156 locations, 1 error locations. SAFE Result, 26.5s OverallTime, 15 OverallIterations, 4 TraceHistogramMax, 11.0s AutomataDifference, 0.0s DeadEndRemovalTime, 3.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 2985 SDtfs, 3709 SDslu, 9427 SDs, 0 SdLazy, 5536 SolverSat, 1574 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2797 GetRequests, 2567 SyntacticMatches, 33 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2655occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.8s AbstIntTime, 9 AbstIntIterations, 3 AbstIntStrong, 0.998282799276508 AbsIntWeakeningRatio, 0.8814317673378076 AbsIntAvgWeakeningVarsNumRemoved, 45.55257270693512 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 15 MinimizatonAttempts, 491 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 64 LocationsWithAnnotation, 5633 PreInvPairs, 5804 NumberOfFragments, 1084 HoareAnnotationTreeSize, 5633 FomulaSimplifications, 12343 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 64 FomulaSimplificationsInter, 27916 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 3081 NumberOfCodeBlocks, 3081 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 4153 ConstructedInterpolants, 0 QuantifiedInterpolants, 952659 SizeOfPredicates, 25 NumberOfNonLiveVariables, 5565 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 27 InterpolantComputations, 11 PerfectInterpolantSequences, 1471/1566 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...