./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/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 99a0574ff0f23dd43b458f22f446fd063a15f78d .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:42:37,982 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:42:37,984 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:42:37,991 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:42:37,991 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:42:37,992 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:42:37,992 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:42:37,994 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:42:37,995 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:42:37,995 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:42:37,996 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:42:37,996 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:42:37,997 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:42:37,997 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:42:37,998 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:42:37,998 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:42:37,999 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:42:38,000 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:42:38,001 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:42:38,002 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:42:38,003 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:42:38,003 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:42:38,005 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:42:38,005 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:42:38,005 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:42:38,006 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:42:38,007 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:42:38,007 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:42:38,008 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:42:38,008 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:42:38,009 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:42:38,009 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:42:38,009 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:42:38,009 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:42:38,010 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:42:38,011 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:42:38,011 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:42:38,018 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:42:38,019 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:42:38,019 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:42:38,019 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:42:38,020 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:42:38,020 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:42:38,020 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:42:38,020 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:42:38,020 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:42:38,020 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:42:38,020 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:42:38,021 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:42:38,021 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:42:38,021 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:42:38,021 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:42:38,021 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:42:38,022 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:42:38,022 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:42:38,022 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:42:38,022 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:42:38,022 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:42:38,022 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:42:38,022 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:42:38,023 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:42:38,023 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:42:38,023 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:42:38,023 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:42:38,023 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:42:38,023 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:42:38,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:42:38,024 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:42:38,024 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:42:38,024 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:42:38,024 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:42:38,024 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:42:38,024 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:42:38,024 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:42:38,024 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_96b4735a-29df-4611-9668-2a255879524c/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 -> 99a0574ff0f23dd43b458f22f446fd063a15f78d [2018-11-18 17:42:38,051 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:42:38,060 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:42:38,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:42:38,064 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:42:38,064 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:42:38,064 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c [2018-11-18 17:42:38,110 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/data/28b88ce25/16bba2d8e00f4f469be7ded673d66e79/FLAG8c6642e04 [2018-11-18 17:42:38,444 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:42:38,444 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c [2018-11-18 17:42:38,454 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/data/28b88ce25/16bba2d8e00f4f469be7ded673d66e79/FLAG8c6642e04 [2018-11-18 17:42:38,465 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/data/28b88ce25/16bba2d8e00f4f469be7ded673d66e79 [2018-11-18 17:42:38,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:42:38,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:42:38,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:42:38,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:42:38,471 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:42:38,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:42:38" (1/1) ... [2018-11-18 17:42:38,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38, skipping insertion in model container [2018-11-18 17:42:38,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:42:38" (1/1) ... [2018-11-18 17:42:38,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:42:38,510 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:42:38,706 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:42:38,714 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:42:38,810 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:42:38,832 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:42:38,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38 WrapperNode [2018-11-18 17:42:38,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:42:38,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:42:38,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:42:38,833 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:42:38,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38" (1/1) ... [2018-11-18 17:42:38,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38" (1/1) ... [2018-11-18 17:42:38,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:42:38,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:42:38,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:42:38,859 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:42:38,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38" (1/1) ... [2018-11-18 17:42:38,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38" (1/1) ... [2018-11-18 17:42:38,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38" (1/1) ... [2018-11-18 17:42:38,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38" (1/1) ... [2018-11-18 17:42:38,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38" (1/1) ... [2018-11-18 17:42:38,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38" (1/1) ... [2018-11-18 17:42:38,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38" (1/1) ... [2018-11-18 17:42:38,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:42:38,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:42:38,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:42:38,885 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:42:38,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:42:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 17:42:38,920 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 17:42:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-18 17:42:38,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-18 17:42:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:42:38,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:42:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 17:42:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 17:42:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:42:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 17:42:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 17:42:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 17:42:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 17:42:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 17:42:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 17:42:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 17:42:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 17:42:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 17:42:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 17:42:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 17:42:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 17:42:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 17:42:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 17:42:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 17:42:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 17:42:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 17:42:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 17:42:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 17:42:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 17:42:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 17:42:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 17:42:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 17:42:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 17:42:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 17:42:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 17:42:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 17:42:38,924 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 17:42:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-18 17:42:38,924 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-18 17:42:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 17:42:38,924 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 17:42:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 17:42:38,924 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 17:42:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 17:42:38,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 17:42:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 17:42:38,925 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 17:42:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 17:42:38,925 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 17:42:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 17:42:38,925 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 17:42:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 17:42:38,925 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 17:42:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 17:42:38,926 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 17:42:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:42:38,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:42:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 17:42:38,926 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 17:42:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 17:42:38,926 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 17:42:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:42:38,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:42:39,404 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:42:39,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:42:39 BoogieIcfgContainer [2018-11-18 17:42:39,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:42:39,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:42:39,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:42:39,407 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:42:39,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:42:38" (1/3) ... [2018-11-18 17:42:39,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550534c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:42:39, skipping insertion in model container [2018-11-18 17:42:39,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:42:38" (2/3) ... [2018-11-18 17:42:39,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550534c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:42:39, skipping insertion in model container [2018-11-18 17:42:39,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:42:39" (3/3) ... [2018-11-18 17:42:39,409 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58_true-unreach-call_false-termination.cil.c [2018-11-18 17:42:39,415 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:42:39,421 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:42:39,430 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:42:39,451 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:42:39,451 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:42:39,451 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:42:39,452 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:42:39,452 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:42:39,452 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:42:39,452 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:42:39,452 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:42:39,466 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2018-11-18 17:42:39,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 17:42:39,472 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:39,473 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:42:39,475 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:39,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:39,480 INFO L82 PathProgramCache]: Analyzing trace with hash -816027859, now seen corresponding path program 1 times [2018-11-18 17:42:39,482 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:39,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:39,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:39,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:39,511 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:39,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:42:39,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:42:39,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:42:39,693 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:42:39,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:42:39,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:42:39,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:42:39,707 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2018-11-18 17:42:39,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:42:39,732 INFO L93 Difference]: Finished difference Result 298 states and 361 transitions. [2018-11-18 17:42:39,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:42:39,733 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 17:42:39,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:42:39,740 INFO L225 Difference]: With dead ends: 298 [2018-11-18 17:42:39,740 INFO L226 Difference]: Without dead ends: 149 [2018-11-18 17:42:39,743 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:42:39,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-11-18 17:42:39,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-11-18 17:42:39,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-11-18 17:42:39,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 172 transitions. [2018-11-18 17:42:39,783 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 172 transitions. Word has length 46 [2018-11-18 17:42:39,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:42:39,783 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 172 transitions. [2018-11-18 17:42:39,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:42:39,783 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 172 transitions. [2018-11-18 17:42:39,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 17:42:39,785 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:39,785 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:42:39,785 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:39,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:39,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1386108780, now seen corresponding path program 1 times [2018-11-18 17:42:39,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:39,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:39,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:39,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:39,787 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:42:39,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:42:39,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:42:39,862 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:42:39,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:42:39,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:42:39,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:42:39,864 INFO L87 Difference]: Start difference. First operand 149 states and 172 transitions. Second operand 3 states. [2018-11-18 17:42:39,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:42:39,883 INFO L93 Difference]: Finished difference Result 241 states and 277 transitions. [2018-11-18 17:42:39,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:42:39,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 17:42:39,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:42:39,886 INFO L225 Difference]: With dead ends: 241 [2018-11-18 17:42:39,886 INFO L226 Difference]: Without dead ends: 139 [2018-11-18 17:42:39,887 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:42:39,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-11-18 17:42:39,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-11-18 17:42:39,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-11-18 17:42:39,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 159 transitions. [2018-11-18 17:42:39,898 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 159 transitions. Word has length 48 [2018-11-18 17:42:39,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:42:39,898 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 159 transitions. [2018-11-18 17:42:39,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:42:39,899 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 159 transitions. [2018-11-18 17:42:39,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 17:42:39,900 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:39,900 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:42:39,900 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:39,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:39,901 INFO L82 PathProgramCache]: Analyzing trace with hash -324551249, now seen corresponding path program 1 times [2018-11-18 17:42:39,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:39,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:39,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:39,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:39,902 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:40,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:42:40,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:42:40,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 17:42:40,037 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:42:40,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 17:42:40,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 17:42:40,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:42:40,038 INFO L87 Difference]: Start difference. First operand 139 states and 159 transitions. Second operand 7 states. [2018-11-18 17:42:40,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:42:40,337 INFO L93 Difference]: Finished difference Result 254 states and 295 transitions. [2018-11-18 17:42:40,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:42:40,337 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2018-11-18 17:42:40,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:42:40,338 INFO L225 Difference]: With dead ends: 254 [2018-11-18 17:42:40,339 INFO L226 Difference]: Without dead ends: 139 [2018-11-18 17:42:40,339 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:42:40,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-11-18 17:42:40,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-11-18 17:42:40,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-11-18 17:42:40,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 158 transitions. [2018-11-18 17:42:40,352 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 158 transitions. Word has length 53 [2018-11-18 17:42:40,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:42:40,352 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 158 transitions. [2018-11-18 17:42:40,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 17:42:40,352 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 158 transitions. [2018-11-18 17:42:40,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 17:42:40,354 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:40,354 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:42:40,354 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:40,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:40,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1063564309, now seen corresponding path program 1 times [2018-11-18 17:42:40,354 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:40,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:40,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:40,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:40,356 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:40,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:42:40,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:42:40,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:42:40,439 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:42:40,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 17:42:40,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:42:40,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:42:40,440 INFO L87 Difference]: Start difference. First operand 139 states and 158 transitions. Second operand 5 states. [2018-11-18 17:42:40,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:42:40,982 INFO L93 Difference]: Finished difference Result 357 states and 423 transitions. [2018-11-18 17:42:40,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 17:42:40,982 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2018-11-18 17:42:40,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:42:40,984 INFO L225 Difference]: With dead ends: 357 [2018-11-18 17:42:40,985 INFO L226 Difference]: Without dead ends: 242 [2018-11-18 17:42:40,986 INFO L604 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 [2018-11-18 17:42:40,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-11-18 17:42:41,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 222. [2018-11-18 17:42:41,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-11-18 17:42:41,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 250 transitions. [2018-11-18 17:42:41,009 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 250 transitions. Word has length 66 [2018-11-18 17:42:41,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:42:41,010 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 250 transitions. [2018-11-18 17:42:41,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 17:42:41,010 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 250 transitions. [2018-11-18 17:42:41,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-11-18 17:42:41,013 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:41,013 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:42:41,014 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:41,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:41,014 INFO L82 PathProgramCache]: Analyzing trace with hash -296623894, now seen corresponding path program 1 times [2018-11-18 17:42:41,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:41,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:41,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:41,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:41,015 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:42:41,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:42:41,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 17:42:41,123 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:42:41,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 17:42:41,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 17:42:41,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:42:41,124 INFO L87 Difference]: Start difference. First operand 222 states and 250 transitions. Second operand 10 states. [2018-11-18 17:42:41,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:42:41,508 INFO L93 Difference]: Finished difference Result 726 states and 884 transitions. [2018-11-18 17:42:41,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 17:42:41,509 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 80 [2018-11-18 17:42:41,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:42:41,511 INFO L225 Difference]: With dead ends: 726 [2018-11-18 17:42:41,512 INFO L226 Difference]: Without dead ends: 528 [2018-11-18 17:42:41,512 INFO L604 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 [2018-11-18 17:42:41,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2018-11-18 17:42:41,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 518. [2018-11-18 17:42:41,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2018-11-18 17:42:41,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 601 transitions. [2018-11-18 17:42:41,545 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 601 transitions. Word has length 80 [2018-11-18 17:42:41,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:42:41,545 INFO L480 AbstractCegarLoop]: Abstraction has 518 states and 601 transitions. [2018-11-18 17:42:41,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 17:42:41,546 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 601 transitions. [2018-11-18 17:42:41,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-18 17:42:41,548 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:41,549 INFO L375 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, 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] [2018-11-18 17:42:41,549 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:41,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:41,549 INFO L82 PathProgramCache]: Analyzing trace with hash 636012058, now seen corresponding path program 1 times [2018-11-18 17:42:41,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:41,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:41,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:41,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:41,550 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:41,634 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-18 17:42:41,635 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:42:41,635 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:42:41,636 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-11-18 17:42:41,637 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [59], [74], [77], [78], [81], [83], [84], [85], [89], [95], [99], [103], [106], [111], [117], [119], [125], [128], [138], [139], [142], [143], [144], [146], [151], [154], [155], [157], [160], [164], [165], [166], [167], [180], [184], [190], [218], [219], [227], [233], [236], [238], [241], [244], [251], [254], [258], [259], [262], [263], [264], [265], [266], [268], [269], [270], [271], [272], [273], [274], [275], [276], [280], [282], [283], [290], [291], [292], [293], [298], [299], [302], [303], [304], [305], [306], [307], [310], [311], [312], [313], [318], [319], [320], [322], [323], [324], [325], [326], [327] [2018-11-18 17:42:41,669 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:42:41,669 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:42:42,054 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:42:42,056 INFO L272 AbstractInterpreter]: Visited 52 different actions 52 times. Never merged. Never widened. Performed 1971 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1971 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 17:42:42,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:42,061 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:42:42,351 INFO L227 lantSequenceWeakener]: Weakened 78 states. On average, predicates are now at 96.77% of their original sizes. [2018-11-18 17:42:42,351 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:42:42,449 INFO L415 sIntCurrentIteration]: We unified 155 AI predicates to 155 [2018-11-18 17:42:42,449 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:42:42,450 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:42:42,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-11-18 17:42:42,450 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:42:42,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 17:42:42,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 17:42:42,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-11-18 17:42:42,451 INFO L87 Difference]: Start difference. First operand 518 states and 601 transitions. Second operand 14 states. [2018-11-18 17:42:44,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:42:44,688 INFO L93 Difference]: Finished difference Result 1390 states and 1665 transitions. [2018-11-18 17:42:44,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 17:42:44,688 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 156 [2018-11-18 17:42:44,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:42:44,692 INFO L225 Difference]: With dead ends: 1390 [2018-11-18 17:42:44,692 INFO L226 Difference]: Without dead ends: 896 [2018-11-18 17:42:44,693 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-11-18 17:42:44,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2018-11-18 17:42:44,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 874. [2018-11-18 17:42:44,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 874 states. [2018-11-18 17:42:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1013 transitions. [2018-11-18 17:42:44,728 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1013 transitions. Word has length 156 [2018-11-18 17:42:44,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:42:44,728 INFO L480 AbstractCegarLoop]: Abstraction has 874 states and 1013 transitions. [2018-11-18 17:42:44,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 17:42:44,729 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1013 transitions. [2018-11-18 17:42:44,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-11-18 17:42:44,732 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:44,732 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:42:44,732 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:44,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:44,733 INFO L82 PathProgramCache]: Analyzing trace with hash 777347485, now seen corresponding path program 1 times [2018-11-18 17:42:44,733 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:44,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:44,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:44,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:44,734 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:44,818 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:42:44,818 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:42:44,818 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:42:44,818 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 160 with the following transitions: [2018-11-18 17:42:44,819 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], [62], [64], [67], [74], [77], [78], [82], [83], [85], [89], [95], [99], [103], [106], [111], [114], [117], [119], [125], [128], [138], [139], [140], [141], [142], [143], [144], [146], [151], [154], [155], [157], [160], [164], [165], [166], [167], [172], [174], [177], [180], [184], [190], [218], [219], [224], [226], [227], [233], [236], [238], [241], [251], [254], [258], [259], [262], [263], [264], [265], [266], [268], [269], [270], [271], [272], [273], [274], [275], [276], [278], [279], [280], [282], [283], [284], [285], [286], [287], [290], [291], [292], [293], [294], [295], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320], [322], [323], [324], [325] [2018-11-18 17:42:44,822 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:42:44,822 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:42:45,071 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:42:45,071 INFO L272 AbstractInterpreter]: Visited 68 different actions 96 times. Merged at 4 different actions 4 times. Never widened. Performed 4715 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4715 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 17:42:45,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:45,077 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:42:45,244 INFO L227 lantSequenceWeakener]: Weakened 83 states. On average, predicates are now at 96.63% of their original sizes. [2018-11-18 17:42:45,244 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:42:45,375 INFO L415 sIntCurrentIteration]: We unified 158 AI predicates to 158 [2018-11-18 17:42:45,375 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:42:45,375 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:42:45,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [5] total 24 [2018-11-18 17:42:45,375 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:42:45,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-18 17:42:45,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-18 17:42:45,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2018-11-18 17:42:45,376 INFO L87 Difference]: Start difference. First operand 874 states and 1013 transitions. Second operand 21 states. [2018-11-18 17:42:51,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:42:51,144 INFO L93 Difference]: Finished difference Result 1970 states and 2372 transitions. [2018-11-18 17:42:51,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-18 17:42:51,144 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 159 [2018-11-18 17:42:51,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:42:51,149 INFO L225 Difference]: With dead ends: 1970 [2018-11-18 17:42:51,149 INFO L226 Difference]: Without dead ends: 1395 [2018-11-18 17:42:51,151 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 171 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=930, Unknown=0, NotChecked=0, Total=1122 [2018-11-18 17:42:51,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2018-11-18 17:42:51,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1337. [2018-11-18 17:42:51,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2018-11-18 17:42:51,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1541 transitions. [2018-11-18 17:42:51,208 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1541 transitions. Word has length 159 [2018-11-18 17:42:51,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:42:51,209 INFO L480 AbstractCegarLoop]: Abstraction has 1337 states and 1541 transitions. [2018-11-18 17:42:51,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-18 17:42:51,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1541 transitions. [2018-11-18 17:42:51,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-18 17:42:51,211 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:51,211 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:42:51,212 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:51,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:51,212 INFO L82 PathProgramCache]: Analyzing trace with hash -955609501, now seen corresponding path program 1 times [2018-11-18 17:42:51,212 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:51,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:51,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:51,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:51,213 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:51,346 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 17:42:51,346 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:42:51,346 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:42:51,346 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-11-18 17:42:51,347 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], [62], [64], [67], [74], [77], [78], [82], [83], [85], [89], [95], [99], [103], [106], [109], [111], [114], [117], [119], [125], [128], [138], [139], [140], [141], [142], [143], [144], [146], [151], [154], [155], [157], [162], [164], [165], [166], [167], [172], [174], [177], [180], [184], [190], [218], [219], [222], [226], [227], [233], [236], [238], [241], [251], [254], [258], [259], [262], [263], [264], [265], [266], [268], [269], [270], [271], [272], [273], [274], [275], [276], [278], [279], [280], [282], [283], [284], [285], [286], [287], [290], [291], [292], [293], [294], [295], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320], [322], [323], [324], [325] [2018-11-18 17:42:51,350 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:42:51,350 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:42:52,936 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:42:52,936 INFO L272 AbstractInterpreter]: Visited 134 different actions 1024 times. Merged at 22 different actions 102 times. Widened at 1 different actions 1 times. Performed 42690 root evaluator evaluations with a maximum evaluation depth of 5. Performed 42690 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 20 fixpoints after 7 different actions. Largest state had 133 variables. [2018-11-18 17:42:52,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:52,939 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:42:52,939 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:42:52,939 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:42:52,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:52,945 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:42:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:53,027 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:42:53,153 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 17:42:53,153 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:42:53,834 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 17:42:53,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:42:53,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-18 17:42:53,857 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:42:53,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 17:42:53,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 17:42:53,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 17:42:53,858 INFO L87 Difference]: Start difference. First operand 1337 states and 1541 transitions. Second operand 8 states. [2018-11-18 17:42:54,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:42:54,243 INFO L93 Difference]: Finished difference Result 3154 states and 3682 transitions. [2018-11-18 17:42:54,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 17:42:54,244 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2018-11-18 17:42:54,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:42:54,250 INFO L225 Difference]: With dead ends: 3154 [2018-11-18 17:42:54,250 INFO L226 Difference]: Without dead ends: 1841 [2018-11-18 17:42:54,254 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 292 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 17:42:54,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2018-11-18 17:42:54,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1834. [2018-11-18 17:42:54,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1834 states. [2018-11-18 17:42:54,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2093 transitions. [2018-11-18 17:42:54,339 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2093 transitions. Word has length 155 [2018-11-18 17:42:54,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:42:54,340 INFO L480 AbstractCegarLoop]: Abstraction has 1834 states and 2093 transitions. [2018-11-18 17:42:54,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 17:42:54,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2093 transitions. [2018-11-18 17:42:54,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-18 17:42:54,343 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:54,343 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:42:54,344 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:54,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:54,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1062096496, now seen corresponding path program 1 times [2018-11-18 17:42:54,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:54,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:54,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:54,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:54,345 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 17:42:54,433 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:42:54,434 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:42:54,434 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-11-18 17:42:54,434 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], [62], [64], [67], [74], [77], [78], [81], [83], [85], [89], [95], [99], [103], [109], [111], [117], [119], [125], [128], [138], [139], [140], [141], [142], [143], [144], [146], [151], [154], [155], [157], [160], [164], [165], [166], [167], [177], [180], [184], [190], [218], [219], [222], [226], [227], [233], [236], [238], [241], [251], [259], [262], [263], [264], [265], [266], [268], [269], [270], [271], [272], [273], [274], [275], [276], [278], [279], [280], [282], [283], [284], [285], [286], [287], [290], [291], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320], [322], [323], [324], [325] [2018-11-18 17:42:54,436 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:42:54,437 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:42:54,579 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:42:54,580 INFO L272 AbstractInterpreter]: Visited 59 different actions 59 times. Never merged. Never widened. Performed 1871 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1871 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 17:42:54,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:54,601 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:42:54,771 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 96.61% of their original sizes. [2018-11-18 17:42:54,771 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:42:54,860 INFO L415 sIntCurrentIteration]: We unified 146 AI predicates to 146 [2018-11-18 17:42:54,860 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:42:54,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:42:54,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2018-11-18 17:42:54,861 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:42:54,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 17:42:54,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 17:42:54,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2018-11-18 17:42:54,861 INFO L87 Difference]: Start difference. First operand 1834 states and 2093 transitions. Second operand 15 states. [2018-11-18 17:42:56,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:42:56,850 INFO L93 Difference]: Finished difference Result 3856 states and 4421 transitions. [2018-11-18 17:42:56,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 17:42:56,851 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 147 [2018-11-18 17:42:56,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:42:56,859 INFO L225 Difference]: With dead ends: 3856 [2018-11-18 17:42:56,859 INFO L226 Difference]: Without dead ends: 2046 [2018-11-18 17:42:56,863 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 150 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2018-11-18 17:42:56,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2046 states. [2018-11-18 17:42:56,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2046 to 2034. [2018-11-18 17:42:56,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2034 states. [2018-11-18 17:42:56,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2034 states to 2034 states and 2316 transitions. [2018-11-18 17:42:56,949 INFO L78 Accepts]: Start accepts. Automaton has 2034 states and 2316 transitions. Word has length 147 [2018-11-18 17:42:56,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:42:56,949 INFO L480 AbstractCegarLoop]: Abstraction has 2034 states and 2316 transitions. [2018-11-18 17:42:56,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 17:42:56,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2034 states and 2316 transitions. [2018-11-18 17:42:56,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-11-18 17:42:56,953 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:56,953 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:42:56,953 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:56,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:56,954 INFO L82 PathProgramCache]: Analyzing trace with hash -68739609, now seen corresponding path program 1 times [2018-11-18 17:42:56,954 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:56,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:56,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:56,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:56,955 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:57,039 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-18 17:42:57,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:42:57,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 17:42:57,040 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:42:57,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:42:57,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:42:57,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:42:57,042 INFO L87 Difference]: Start difference. First operand 2034 states and 2316 transitions. Second operand 6 states. [2018-11-18 17:42:57,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:42:57,136 INFO L93 Difference]: Finished difference Result 2743 states and 3160 transitions. [2018-11-18 17:42:57,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:42:57,136 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-11-18 17:42:57,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:42:57,144 INFO L225 Difference]: With dead ends: 2743 [2018-11-18 17:42:57,144 INFO L226 Difference]: Without dead ends: 2054 [2018-11-18 17:42:57,146 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:42:57,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2018-11-18 17:42:57,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 2054. [2018-11-18 17:42:57,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2054 states. [2018-11-18 17:42:57,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 2336 transitions. [2018-11-18 17:42:57,231 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 2336 transitions. Word has length 151 [2018-11-18 17:42:57,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:42:57,232 INFO L480 AbstractCegarLoop]: Abstraction has 2054 states and 2336 transitions. [2018-11-18 17:42:57,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:42:57,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 2336 transitions. [2018-11-18 17:42:57,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-18 17:42:57,235 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:57,235 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:42:57,235 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:57,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:57,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1666666508, now seen corresponding path program 1 times [2018-11-18 17:42:57,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:57,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:57,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:57,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:57,237 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:57,323 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 17:42:57,323 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:42:57,323 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:42:57,323 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-11-18 17:42:57,324 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], [67], [74], [77], [78], [81], [83], [85], [89], [95], [99], [103], [109], [111], [117], [119], [125], [128], [138], [139], [140], [141], [142], [143], [144], [146], [151], [154], [155], [157], [162], [164], [165], [166], [167], [177], [180], [184], [190], [218], [219], [222], [226], [227], [233], [236], [238], [241], [251], [259], [262], [263], [264], [265], [266], [268], [269], [270], [271], [272], [273], [274], [275], [276], [278], [279], [280], [282], [283], [284], [285], [286], [287], [290], [291], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320], [322], [323], [324], [325] [2018-11-18 17:42:57,327 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:42:57,332 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:42:58,537 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:42:58,537 INFO L272 AbstractInterpreter]: Visited 124 different actions 834 times. Merged at 18 different actions 77 times. Never widened. Performed 31752 root evaluator evaluations with a maximum evaluation depth of 5. Performed 31752 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-18 17:42:58,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:58,545 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:42:58,545 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:42:58,545 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:42:58,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:58,551 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:42:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:58,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:42:58,647 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 17:42:58,648 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:42:58,824 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 17:42:58,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:42:58,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-18 17:42:58,840 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:42:58,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 17:42:58,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:42:58,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 17:42:58,841 INFO L87 Difference]: Start difference. First operand 2054 states and 2336 transitions. Second operand 5 states. [2018-11-18 17:42:58,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:42:58,903 INFO L93 Difference]: Finished difference Result 3674 states and 4216 transitions. [2018-11-18 17:42:58,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:42:58,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2018-11-18 17:42:58,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:42:58,909 INFO L225 Difference]: With dead ends: 3674 [2018-11-18 17:42:58,910 INFO L226 Difference]: Without dead ends: 1644 [2018-11-18 17:42:58,914 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 291 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 17:42:58,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2018-11-18 17:42:58,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1644. [2018-11-18 17:42:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2018-11-18 17:42:58,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 1859 transitions. [2018-11-18 17:42:58,988 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 1859 transitions. Word has length 147 [2018-11-18 17:42:58,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:42:58,988 INFO L480 AbstractCegarLoop]: Abstraction has 1644 states and 1859 transitions. [2018-11-18 17:42:58,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 17:42:58,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 1859 transitions. [2018-11-18 17:42:58,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-11-18 17:42:58,990 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:58,991 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:42:58,991 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:58,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:58,991 INFO L82 PathProgramCache]: Analyzing trace with hash -578212699, now seen corresponding path program 1 times [2018-11-18 17:42:58,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:58,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:58,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:58,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:58,992 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-18 17:42:59,090 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:42:59,090 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 17:42:59,090 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:42:59,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:42:59,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:42:59,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:42:59,092 INFO L87 Difference]: Start difference. First operand 1644 states and 1859 transitions. Second operand 6 states. [2018-11-18 17:42:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:42:59,283 INFO L93 Difference]: Finished difference Result 1657 states and 1873 transitions. [2018-11-18 17:42:59,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 17:42:59,283 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-11-18 17:42:59,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:42:59,289 INFO L225 Difference]: With dead ends: 1657 [2018-11-18 17:42:59,289 INFO L226 Difference]: Without dead ends: 1654 [2018-11-18 17:42:59,290 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 17:42:59,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2018-11-18 17:42:59,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1644. [2018-11-18 17:42:59,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2018-11-18 17:42:59,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 1857 transitions. [2018-11-18 17:42:59,356 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 1857 transitions. Word has length 151 [2018-11-18 17:42:59,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:42:59,357 INFO L480 AbstractCegarLoop]: Abstraction has 1644 states and 1857 transitions. [2018-11-18 17:42:59,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:42:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 1857 transitions. [2018-11-18 17:42:59,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-18 17:42:59,359 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:42:59,359 INFO L375 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] [2018-11-18 17:42:59,360 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:42:59,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:42:59,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1061624962, now seen corresponding path program 1 times [2018-11-18 17:42:59,360 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:42:59,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:59,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:42:59,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:42:59,361 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:42:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:42:59,475 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 17:42:59,476 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:42:59,476 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:42:59,476 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-11-18 17:42:59,476 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], [59], [62], [64], [70], [74], [77], [78], [82], [83], [84], [85], [89], [95], [99], [103], [106], [109], [111], [117], [119], [125], [128], [138], [139], [140], [141], [142], [143], [144], [146], [151], [154], [155], [157], [162], [164], [165], [166], [167], [177], [180], [184], [190], [218], [219], [222], [226], [227], [233], [236], [238], [241], [248], [251], [254], [258], [259], [262], [263], [264], [265], [266], [268], [269], [270], [271], [272], [273], [274], [275], [276], [278], [279], [280], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320], [322], [323], [324], [325], [328], [329] [2018-11-18 17:42:59,478 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:42:59,478 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:43:00,233 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:43:00,233 INFO L272 AbstractInterpreter]: Visited 131 different actions 598 times. Merged at 17 different actions 48 times. Never widened. Performed 18883 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18883 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-18 17:43:00,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:43:00,237 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:43:00,237 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:43:00,237 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/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 [2018-11-18 17:43:00,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:43:00,243 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:43:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:43:00,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:43:00,371 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:43:00,372 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:43:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 17:43:00,556 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:43:00,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-18 17:43:00,556 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:43:00,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 17:43:00,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 17:43:00,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-18 17:43:00,557 INFO L87 Difference]: Start difference. First operand 1644 states and 1857 transitions. Second operand 14 states. [2018-11-18 17:43:02,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:43:02,573 INFO L93 Difference]: Finished difference Result 3169 states and 3933 transitions. [2018-11-18 17:43:02,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-18 17:43:02,574 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 155 [2018-11-18 17:43:02,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:43:02,583 INFO L225 Difference]: With dead ends: 3169 [2018-11-18 17:43:02,583 INFO L226 Difference]: Without dead ends: 2446 [2018-11-18 17:43:02,587 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 305 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 17:43:02,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2018-11-18 17:43:02,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2213. [2018-11-18 17:43:02,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2213 states. [2018-11-18 17:43:02,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 2532 transitions. [2018-11-18 17:43:02,691 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 2532 transitions. Word has length 155 [2018-11-18 17:43:02,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:43:02,692 INFO L480 AbstractCegarLoop]: Abstraction has 2213 states and 2532 transitions. [2018-11-18 17:43:02,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 17:43:02,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 2532 transitions. [2018-11-18 17:43:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-11-18 17:43:02,698 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:43:02,699 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 17:43:02,699 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:43:02,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:43:02,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1355953674, now seen corresponding path program 1 times [2018-11-18 17:43:02,699 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:43:02,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:43:02,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:43:02,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:43:02,702 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:43:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:43:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 43 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-18 17:43:02,817 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:43:02,817 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:43:02,817 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-11-18 17:43:02,817 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], [59], [62], [64], [70], [74], [77], [78], [82], [83], [84], [85], [89], [95], [99], [103], [106], [109], [111], [117], [119], [125], [128], [138], [139], [140], [141], [142], [143], [144], [146], [151], [154], [155], [157], [162], [164], [165], [166], [167], [177], [180], [184], [190], [218], [219], [222], [226], [227], [233], [236], [238], [241], [248], [251], [254], [258], [259], [262], [263], [264], [265], [266], [268], [269], [270], [271], [272], [273], [274], [275], [276], [278], [279], [280], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320], [322], [323], [324], [325], [328], [329] [2018-11-18 17:43:02,819 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:43:02,819 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:43:03,611 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:43:03,611 INFO L272 AbstractInterpreter]: Visited 132 different actions 610 times. Merged at 20 different actions 57 times. Never widened. Performed 19061 root evaluator evaluations with a maximum evaluation depth of 5. Performed 19061 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-18 17:43:03,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:43:03,613 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:43:03,613 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:43:03,613 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/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 [2018-11-18 17:43:03,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:43:03,621 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:43:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:43:03,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:43:03,769 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-11-18 17:43:03,769 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:43:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 43 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-18 17:43:03,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:43:03,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-18 17:43:03,982 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:43:03,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:43:03,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:43:03,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-18 17:43:03,983 INFO L87 Difference]: Start difference. First operand 2213 states and 2532 transitions. Second operand 6 states. [2018-11-18 17:43:04,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:43:04,041 INFO L93 Difference]: Finished difference Result 3379 states and 3919 transitions. [2018-11-18 17:43:04,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:43:04,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 210 [2018-11-18 17:43:04,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:43:04,047 INFO L225 Difference]: With dead ends: 3379 [2018-11-18 17:43:04,047 INFO L226 Difference]: Without dead ends: 2087 [2018-11-18 17:43:04,049 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 415 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 17:43:04,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2018-11-18 17:43:04,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 2087. [2018-11-18 17:43:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2087 states. [2018-11-18 17:43:04,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 2381 transitions. [2018-11-18 17:43:04,106 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 2381 transitions. Word has length 210 [2018-11-18 17:43:04,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:43:04,106 INFO L480 AbstractCegarLoop]: Abstraction has 2087 states and 2381 transitions. [2018-11-18 17:43:04,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:43:04,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 2381 transitions. [2018-11-18 17:43:04,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-11-18 17:43:04,111 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:43:04,111 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:43:04,111 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:43:04,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:43:04,112 INFO L82 PathProgramCache]: Analyzing trace with hash -98386979, now seen corresponding path program 1 times [2018-11-18 17:43:04,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:43:04,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:43:04,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:43:04,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:43:04,113 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:43:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:43:04,182 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 75 proven. 4 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2018-11-18 17:43:04,182 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:43:04,182 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:43:04,182 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 275 with the following transitions: [2018-11-18 17:43:04,182 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], [62], [64], [67], [70], [74], [77], [78], [81], [82], [83], [84], [85], [89], [95], [99], [103], [106], [109], [111], [117], [119], [125], [128], [138], [139], [140], [141], [142], [143], [144], [146], [151], [154], [155], [157], [160], [162], [164], [165], [166], [167], [177], [180], [184], [190], [218], [219], [222], [226], [227], [233], [236], [238], [241], [248], [251], [254], [258], [259], [262], [263], [264], [265], [266], [268], [269], [270], [271], [272], [273], [274], [275], [276], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [291], [292], [293], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [318], [319], [320], [322], [323], [324], [325], [328], [329] [2018-11-18 17:43:04,184 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:43:04,184 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:43:05,362 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:43:05,363 INFO L272 AbstractInterpreter]: Visited 139 different actions 963 times. Merged at 37 different actions 173 times. Widened at 1 different actions 1 times. Performed 33097 root evaluator evaluations with a maximum evaluation depth of 5. Performed 33097 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 26 fixpoints after 7 different actions. Largest state had 133 variables. [2018-11-18 17:43:05,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:43:05,364 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:43:05,364 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:43:05,364 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/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 [2018-11-18 17:43:05,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:43:05,370 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:43:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:43:05,444 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:43:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-11-18 17:43:05,521 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:43:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 75 proven. 4 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2018-11-18 17:43:05,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:43:05,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-18 17:43:05,824 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:43:05,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:43:05,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:43:05,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:43:05,825 INFO L87 Difference]: Start difference. First operand 2087 states and 2381 transitions. Second operand 6 states. [2018-11-18 17:43:05,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:43:05,890 INFO L93 Difference]: Finished difference Result 3407 states and 3899 transitions. [2018-11-18 17:43:05,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:43:05,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 274 [2018-11-18 17:43:05,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:43:05,892 INFO L225 Difference]: With dead ends: 3407 [2018-11-18 17:43:05,892 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 17:43:05,898 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 543 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:43:05,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 17:43:05,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 17:43:05,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 17:43:05,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 17:43:05,899 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 274 [2018-11-18 17:43:05,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:43:05,899 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:43:05,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:43:05,900 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:43:05,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:43:05,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 17:43:06,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,093 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,093 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,096 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,098 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,175 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,175 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,182 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,196 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,208 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,289 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,290 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,297 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,489 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,489 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,490 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,492 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,492 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,494 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,496 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:43:06,886 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 11 [2018-11-18 17:43:07,472 WARN L180 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 34 [2018-11-18 17:43:07,576 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 1 [2018-11-18 17:43:07,693 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2018-11-18 17:43:07,806 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 14 [2018-11-18 17:43:08,007 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 20 [2018-11-18 17:43:08,611 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 34 [2018-11-18 17:43:09,187 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 26 [2018-11-18 17:43:09,936 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 674 680) the Hoare annotation is: true [2018-11-18 17:43:09,937 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 674 680) no Hoare annotation was computed. [2018-11-18 17:43:09,937 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 681 689) no Hoare annotation was computed. [2018-11-18 17:43:09,937 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 681 689) the Hoare annotation is: true [2018-11-18 17:43:09,937 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 681 689) no Hoare annotation was computed. [2018-11-18 17:43:09,937 INFO L425 ceAbstractionStarter]: For program point L417(lines 417 430) no Hoare annotation was computed. [2018-11-18 17:43:09,937 INFO L425 ceAbstractionStarter]: For program point L417-1(lines 409 433) no Hoare annotation was computed. [2018-11-18 17:43:09,937 INFO L428 ceAbstractionStarter]: At program point L415(line 415) the Hoare annotation is: true [2018-11-18 17:43:09,937 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 409 433) the Hoare annotation is: true [2018-11-18 17:43:09,937 INFO L425 ceAbstractionStarter]: For program point L415-1(line 415) no Hoare annotation was computed. [2018-11-18 17:43:09,937 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 409 433) no Hoare annotation was computed. [2018-11-18 17:43:09,937 INFO L421 ceAbstractionStarter]: At program point L423(line 423) 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))) [2018-11-18 17:43:09,937 INFO L425 ceAbstractionStarter]: For program point L421(lines 421 427) no Hoare annotation was computed. [2018-11-18 17:43:09,938 INFO L421 ceAbstractionStarter]: At program point L419(line 419) 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))) [2018-11-18 17:43:09,938 INFO L425 ceAbstractionStarter]: For program point L419-1(line 419) no Hoare annotation was computed. [2018-11-18 17:43:09,938 INFO L425 ceAbstractionStarter]: For program point L642-1(lines 642 649) no Hoare annotation was computed. [2018-11-18 17:43:09,938 INFO L425 ceAbstractionStarter]: For program point L640(line 640) no Hoare annotation was computed. [2018-11-18 17:43:09,938 INFO L421 ceAbstractionStarter]: At program point L639(line 639) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 17:43:09,938 INFO L421 ceAbstractionStarter]: At program point L638(line 638) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 17:43:09,938 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 632 654) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 17:43:09,938 INFO L421 ceAbstractionStarter]: At program point L638-1(line 638) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 17:43:09,938 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 632 654) no Hoare annotation was computed. [2018-11-18 17:43:09,938 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 632 654) no Hoare annotation was computed. [2018-11-18 17:43:09,938 INFO L421 ceAbstractionStarter]: At program point L644(line 644) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~4 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 17:43:09,939 INFO L421 ceAbstractionStarter]: At program point L644-1(line 644) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~4 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 17:43:09,939 INFO L425 ceAbstractionStarter]: For program point L642(lines 642 649) no Hoare annotation was computed. [2018-11-18 17:43:09,939 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 825 833) no Hoare annotation was computed. [2018-11-18 17:43:09,939 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 825 833) the Hoare annotation is: true [2018-11-18 17:43:09,939 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 825 833) no Hoare annotation was computed. [2018-11-18 17:43:09,939 INFO L428 ceAbstractionStarter]: At program point L896(line 896) the Hoare annotation is: true [2018-11-18 17:43:09,939 INFO L425 ceAbstractionStarter]: For program point L898-2(lines 898 902) no Hoare annotation was computed. [2018-11-18 17:43:09,939 INFO L425 ceAbstractionStarter]: For program point L896-1(line 896) no Hoare annotation was computed. [2018-11-18 17:43:09,939 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 889 907) the Hoare annotation is: true [2018-11-18 17:43:09,939 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 889 907) no Hoare annotation was computed. [2018-11-18 17:43:09,939 INFO L425 ceAbstractionStarter]: For program point L898(lines 898 902) no Hoare annotation was computed. [2018-11-18 17:43:09,939 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 889 907) no Hoare annotation was computed. [2018-11-18 17:43:09,939 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 667 673) no Hoare annotation was computed. [2018-11-18 17:43:09,939 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 667 673) the Hoare annotation is: true [2018-11-18 17:43:09,939 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 619 628) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 17:43:09,940 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 619 628) no Hoare annotation was computed. [2018-11-18 17:43:09,940 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 619 628) no Hoare annotation was computed. [2018-11-18 17:43:09,940 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 814 824) the Hoare annotation is: true [2018-11-18 17:43:09,940 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 814 824) no Hoare annotation was computed. [2018-11-18 17:43:09,940 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 814 824) no Hoare annotation was computed. [2018-11-18 17:43:09,940 INFO L428 ceAbstractionStarter]: At program point L819(line 819) the Hoare annotation is: true [2018-11-18 17:43:09,940 INFO L425 ceAbstractionStarter]: For program point L819-1(line 819) no Hoare annotation was computed. [2018-11-18 17:43:09,940 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 806 813) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1))) [2018-11-18 17:43:09,940 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 806 813) no Hoare annotation was computed. [2018-11-18 17:43:09,940 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 806 813) no Hoare annotation was computed. [2018-11-18 17:43:09,940 INFO L421 ceAbstractionStarter]: At program point L769(line 769) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 17:43:09,940 INFO L421 ceAbstractionStarter]: At program point L765(line 765) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (and (<= 1 processEnvironment_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-11-18 17:43:09,940 INFO L425 ceAbstractionStarter]: For program point L763(lines 763 771) no Hoare annotation was computed. [2018-11-18 17:43:09,940 INFO L421 ceAbstractionStarter]: At program point L761(line 761) 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))) [2018-11-18 17:43:09,941 INFO L425 ceAbstractionStarter]: For program point L761-1(line 761) no Hoare annotation was computed. [2018-11-18 17:43:09,941 INFO L425 ceAbstractionStarter]: For program point L759(lines 759 776) no Hoare annotation was computed. [2018-11-18 17:43:09,941 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 755 779) no Hoare annotation was computed. [2018-11-18 17:43:09,941 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 755 779) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 17:43:09,941 INFO L421 ceAbstractionStarter]: At program point L774(line 774) 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))) [2018-11-18 17:43:09,941 INFO L425 ceAbstractionStarter]: For program point L774-1(lines 755 779) no Hoare annotation was computed. [2018-11-18 17:43:09,941 INFO L425 ceAbstractionStarter]: For program point L534(lines 534 540) no Hoare annotation was computed. [2018-11-18 17:43:09,941 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 530 543) no Hoare annotation was computed. [2018-11-18 17:43:09,941 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 530 543) the Hoare annotation is: true [2018-11-18 17:43:09,941 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 530 543) no Hoare annotation was computed. [2018-11-18 17:43:09,941 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 721 727) no Hoare annotation was computed. [2018-11-18 17:43:09,941 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 721 727) the Hoare annotation is: true [2018-11-18 17:43:09,941 INFO L425 ceAbstractionStarter]: For program point L929(lines 929 933) no Hoare annotation was computed. [2018-11-18 17:43:09,941 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 917 982) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 17:43:09,941 INFO L425 ceAbstractionStarter]: For program point L927-1(lines 927 974) no Hoare annotation was computed. [2018-11-18 17:43:09,942 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 917 982) no Hoare annotation was computed. [2018-11-18 17:43:09,942 INFO L421 ceAbstractionStarter]: At program point L975(lines 926 976) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 17:43:09,942 INFO L425 ceAbstractionStarter]: For program point L965(lines 965 969) no Hoare annotation was computed. [2018-11-18 17:43:09,942 INFO L421 ceAbstractionStarter]: At program point L965-2(lines 957 970) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 17:43:09,942 INFO L425 ceAbstractionStarter]: For program point L928(lines 927 974) no Hoare annotation was computed. [2018-11-18 17:43:09,942 INFO L421 ceAbstractionStarter]: At program point L959(line 959) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 17:43:09,942 INFO L425 ceAbstractionStarter]: For program point L957(lines 957 970) no Hoare annotation was computed. [2018-11-18 17:43:09,942 INFO L421 ceAbstractionStarter]: At program point L949(line 949) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 17:43:09,942 INFO L425 ceAbstractionStarter]: For program point L947(lines 947 953) no Hoare annotation was computed. [2018-11-18 17:43:09,942 INFO L425 ceAbstractionStarter]: For program point L947-1(lines 947 953) no Hoare annotation was computed. [2018-11-18 17:43:09,942 INFO L421 ceAbstractionStarter]: At program point L972(lines 927 974) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 17:43:09,942 INFO L421 ceAbstractionStarter]: At program point L939(line 939) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 17:43:09,943 INFO L425 ceAbstractionStarter]: For program point L937(lines 937 943) no Hoare annotation was computed. [2018-11-18 17:43:09,943 INFO L425 ceAbstractionStarter]: For program point L937-1(lines 937 943) no Hoare annotation was computed. [2018-11-18 17:43:09,943 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 917 982) no Hoare annotation was computed. [2018-11-18 17:43:09,943 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 780 787) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) (< ~waterLevel~0 2)) [2018-11-18 17:43:09,943 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 780 787) no Hoare annotation was computed. [2018-11-18 17:43:09,943 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 780 787) no Hoare annotation was computed. [2018-11-18 17:43:09,943 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 544 552) no Hoare annotation was computed. [2018-11-18 17:43:09,943 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 544 552) the Hoare annotation is: true [2018-11-18 17:43:09,943 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 544 552) no Hoare annotation was computed. [2018-11-18 17:43:09,943 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:43:09,943 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 17:43:09,943 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:43:09,943 INFO L421 ceAbstractionStarter]: At program point L800(line 800) 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))) [2018-11-18 17:43:09,943 INFO L425 ceAbstractionStarter]: For program point L800-1(lines 789 805) no Hoare annotation was computed. [2018-11-18 17:43:09,944 INFO L425 ceAbstractionStarter]: For program point L796(lines 796 802) no Hoare annotation was computed. [2018-11-18 17:43:09,944 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 789 805) no Hoare annotation was computed. [2018-11-18 17:43:09,944 INFO L421 ceAbstractionStarter]: At program point L794(line 794) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-18 17:43:09,944 INFO L425 ceAbstractionStarter]: For program point L794-1(line 794) no Hoare annotation was computed. [2018-11-18 17:43:09,944 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 789 805) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-18 17:43:09,944 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 870 888) no Hoare annotation was computed. [2018-11-18 17:43:09,944 INFO L425 ceAbstractionStarter]: For program point L879(lines 879 883) no Hoare annotation was computed. [2018-11-18 17:43:09,944 INFO L428 ceAbstractionStarter]: At program point L877(line 877) the Hoare annotation is: true [2018-11-18 17:43:09,944 INFO L425 ceAbstractionStarter]: For program point L879-2(lines 879 883) no Hoare annotation was computed. [2018-11-18 17:43:09,944 INFO L425 ceAbstractionStarter]: For program point L877-1(line 877) no Hoare annotation was computed. [2018-11-18 17:43:09,944 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 870 888) the Hoare annotation is: true [2018-11-18 17:43:09,944 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 870 888) no Hoare annotation was computed. [2018-11-18 17:43:09,944 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 521 529) the Hoare annotation is: true [2018-11-18 17:43:09,944 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 521 529) no Hoare annotation was computed. [2018-11-18 17:43:09,945 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 521 529) no Hoare annotation was computed. [2018-11-18 17:43:09,945 INFO L425 ceAbstractionStarter]: For program point L481-1(lines 477 488) no Hoare annotation was computed. [2018-11-18 17:43:09,945 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 477 488) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse4 (not (= ~waterLevel~0 2)))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse2 .cse3) (or (or (not (= |old(~methaneLevelCritical~0)| 1)) .cse4) (or .cse3 (= ~methaneLevelCritical~0 1)) .cse1) (or (< |old(~methaneLevelCritical~0)| 1) .cse0 (< ~waterLevel~0 1) .cse1 (<= 1 ~methaneLevelCritical~0)) (or .cse3 .cse1 .cse2 .cse4))) [2018-11-18 17:43:09,945 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 477 488) no Hoare annotation was computed. [2018-11-18 17:43:09,945 INFO L421 ceAbstractionStarter]: At program point L703(line 703) 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))) [2018-11-18 17:43:09,945 INFO L425 ceAbstractionStarter]: For program point L701(lines 700 719) no Hoare annotation was computed. [2018-11-18 17:43:09,945 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 697 720) 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))) [2018-11-18 17:43:09,945 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 697 720) no Hoare annotation was computed. [2018-11-18 17:43:09,945 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 697 720) no Hoare annotation was computed. [2018-11-18 17:43:09,945 INFO L421 ceAbstractionStarter]: At program point L710(line 710) 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)))) [2018-11-18 17:43:09,945 INFO L421 ceAbstractionStarter]: At program point L708(lines 708 714) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (= ~systemActive~0 1))) (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse1 (and (<= 2 ~waterLevel~0) .cse4 .cse5)) (.cse3 (not .cse5))) (and (or (and .cse0 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse1 (or .cse2 .cse3)) (or .cse0 (or (< ~methaneLevelCritical~0 1) .cse2 .cse3)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse1 (< |old(~waterLevel~0)| 1) .cse3 (and .cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)))))) [2018-11-18 17:43:09,946 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 556 585) no Hoare annotation was computed. [2018-11-18 17:43:09,946 INFO L425 ceAbstractionStarter]: For program point L570(lines 570 574) no Hoare annotation was computed. [2018-11-18 17:43:09,946 INFO L428 ceAbstractionStarter]: At program point L570-1(lines 570 574) the Hoare annotation is: true [2018-11-18 17:43:09,946 INFO L425 ceAbstractionStarter]: For program point L566-1(lines 566 580) no Hoare annotation was computed. [2018-11-18 17:43:09,946 INFO L428 ceAbstractionStarter]: At program point L566-3(lines 566 580) the Hoare annotation is: true [2018-11-18 17:43:09,946 INFO L428 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2018-11-18 17:43:09,946 INFO L425 ceAbstractionStarter]: For program point L562-1(line 562) no Hoare annotation was computed. [2018-11-18 17:43:09,946 INFO L428 ceAbstractionStarter]: At program point L581(lines 556 585) the Hoare annotation is: true [2018-11-18 17:43:09,946 INFO L425 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2018-11-18 17:43:09,946 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 556 585) the Hoare annotation is: true [2018-11-18 17:43:09,946 INFO L425 ceAbstractionStarter]: For program point L567(line 567) no Hoare annotation was computed. [2018-11-18 17:43:09,946 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 489 497) the Hoare annotation is: true [2018-11-18 17:43:09,946 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 489 497) no Hoare annotation was computed. [2018-11-18 17:43:09,946 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 489 497) no Hoare annotation was computed. [2018-11-18 17:43:09,946 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 453 464) the Hoare annotation is: (or (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1))) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-11-18 17:43:09,947 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 453 464) no Hoare annotation was computed. [2018-11-18 17:43:09,947 INFO L425 ceAbstractionStarter]: For program point L457-1(lines 453 464) no Hoare annotation was computed. [2018-11-18 17:43:09,947 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 611 617) no Hoare annotation was computed. [2018-11-18 17:43:09,947 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 611 617) the Hoare annotation is: true [2018-11-18 17:43:09,947 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:43:09,947 INFO L421 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)) [2018-11-18 17:43:09,947 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:43:09,947 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:43:09,947 INFO L425 ceAbstractionStarter]: For program point startSystemEXIT(lines 908 915) no Hoare annotation was computed. [2018-11-18 17:43:09,947 INFO L421 ceAbstractionStarter]: At program point startSystemENTRY(lines 908 915) the Hoare annotation is: (let ((.cse1 (not (= |old(~systemActive~0)| 1))) (.cse0 (= ~systemActive~0 1))) (and (or .cse0 (or (< ~waterLevel~0 2) .cse1)) (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse1 .cse0))) [2018-11-18 17:43:09,947 INFO L425 ceAbstractionStarter]: For program point startSystemFINAL(lines 908 915) no Hoare annotation was computed. [2018-11-18 17:43:09,947 INFO L425 ceAbstractionStarter]: For program point L737(lines 737 745) no Hoare annotation was computed. [2018-11-18 17:43:09,947 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 729 753) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 17:43:09,947 INFO L421 ceAbstractionStarter]: At program point L735(line 735) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 17:43:09,947 INFO L425 ceAbstractionStarter]: For program point L735-1(line 735) no Hoare annotation was computed. [2018-11-18 17:43:09,948 INFO L425 ceAbstractionStarter]: For program point L733(lines 733 750) no Hoare annotation was computed. [2018-11-18 17:43:09,948 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 729 753) no Hoare annotation was computed. [2018-11-18 17:43:09,948 INFO L421 ceAbstractionStarter]: At program point L748(line 748) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 17:43:09,948 INFO L425 ceAbstractionStarter]: For program point L748-1(lines 729 753) no Hoare annotation was computed. [2018-11-18 17:43:09,948 INFO L421 ceAbstractionStarter]: At program point L743(line 743) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 17:43:09,948 INFO L421 ceAbstractionStarter]: At program point L739(line 739) 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))) [2018-11-18 17:43:09,948 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 465 476) no Hoare annotation was computed. [2018-11-18 17:43:09,948 INFO L425 ceAbstractionStarter]: For program point L469-1(lines 465 476) no Hoare annotation was computed. [2018-11-18 17:43:09,948 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 465 476) 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)))) [2018-11-18 17:43:09,948 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 435 442) no Hoare annotation was computed. [2018-11-18 17:43:09,948 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 435 442) the Hoare annotation is: true [2018-11-18 17:43:09,948 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2018-11-18 17:43:09,948 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 435 442) no Hoare annotation was computed. [2018-11-18 17:43:09,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:43:09 BoogieIcfgContainer [2018-11-18 17:43:09,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:43:09,959 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:43:09,959 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:43:09,959 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:43:09,959 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:42:39" (3/4) ... [2018-11-18 17:43:09,962 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:43:09,969 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 17:43:09,969 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 17:43:09,969 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-18 17:43:09,969 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 17:43:09,969 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 17:43:09,969 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 17:43:09,969 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 17:43:09,969 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 17:43:09,969 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 17:43:09,970 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 17:43:09,971 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 17:43:09,971 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-18 17:43:09,971 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 17:43:09,971 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 17:43:09,971 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 17:43:09,977 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-11-18 17:43:09,978 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 17:43:09,978 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 17:43:10,001 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 17:43:10,002 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 17:43:10,034 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_96b4735a-29df-4611-9668-2a255879524c/bin-2019/utaipan/witness.graphml [2018-11-18 17:43:10,034 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:43:10,035 INFO L168 Benchmark]: Toolchain (without parser) took 31567.37 ms. Allocated memory was 1.0 GB in the beginning and 2.8 GB in the end (delta: 1.7 GB). Free memory was 956.6 MB in the beginning and 1.2 GB in the end (delta: -289.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-18 17:43:10,036 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:43:10,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 956.6 MB in the beginning and 1.2 GB in the end (delta: -195.9 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:43:10,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:43:10,036 INFO L168 Benchmark]: Boogie Preprocessor took 25.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:43:10,036 INFO L168 Benchmark]: RCFGBuilder took 519.14 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: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:43:10,036 INFO L168 Benchmark]: TraceAbstraction took 30553.44 ms. Allocated memory was 1.2 GB in the beginning and 2.8 GB in the end (delta: 1.6 GB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -196.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-11-18 17:43:10,037 INFO L168 Benchmark]: Witness Printer took 75.86 ms. Allocated memory is still 2.8 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:43:10,038 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 956.6 MB in the beginning and 1.2 GB in the end (delta: -195.9 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 519.14 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: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 30553.44 ms. Allocated memory was 1.2 GB in the beginning and 2.8 GB in the end (delta: 1.6 GB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -196.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. * Witness Printer took 75.86 ms. Allocated memory is still 2.8 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: 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: 926]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 927]: Loop Invariant Derived loop invariant: (((((((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 162 locations, 1 error locations. SAFE Result, 30.5s OverallTime, 15 OverallIterations, 4 TraceHistogramMax, 14.2s AutomataDifference, 0.0s DeadEndRemovalTime, 4.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2992 SDtfs, 3351 SDslu, 10775 SDs, 0 SdLazy, 5668 SolverSat, 1180 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2506 GetRequests, 2290 SyntacticMatches, 28 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2213occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.4s AbstIntTime, 8 AbstIntIterations, 3 AbstIntStrong, 0.9980731691464476 AbsIntWeakeningRatio, 0.8714596949891068 AbsIntAvgWeakeningVarsNumRemoved, 48.15904139433551 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 15 MinimizatonAttempts, 372 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 66 LocationsWithAnnotation, 5028 PreInvPairs, 5204 NumberOfFragments, 1179 HoareAnnotationTreeSize, 5028 FomulaSimplifications, 11803 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 66 FomulaSimplificationsInter, 23793 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 2939 NumberOfCodeBlocks, 2939 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3855 ConstructedInterpolants, 0 QuantifiedInterpolants, 843027 SizeOfPredicates, 19 NumberOfNonLiveVariables, 4362 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 25 InterpolantComputations, 11 PerfectInterpolantSequences, 1375/1441 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...