./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product50_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product50_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/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 96fab9ebc0a7c1449817f0fde656dfd4d62824fd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 06:10:12,749 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:10:12,750 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:10:12,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:10:12,760 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:10:12,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:10:12,762 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:10:12,764 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:10:12,765 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:10:12,766 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:10:12,767 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:10:12,767 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:10:12,768 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:10:12,769 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:10:12,769 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:10:12,770 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:10:12,771 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:10:12,772 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:10:12,774 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:10:12,775 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:10:12,776 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:10:12,777 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:10:12,779 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:10:12,779 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:10:12,779 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:10:12,780 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:10:12,781 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:10:12,782 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:10:12,782 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:10:12,783 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:10:12,783 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:10:12,784 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:10:12,784 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:10:12,784 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:10:12,785 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:10:12,786 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:10:12,786 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 06:10:12,798 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:10:12,798 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:10:12,799 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 06:10:12,799 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 06:10:12,799 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 06:10:12,799 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 06:10:12,799 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 06:10:12,800 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 06:10:12,800 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 06:10:12,800 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 06:10:12,800 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 06:10:12,800 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 06:10:12,800 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 06:10:12,801 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:10:12,801 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 06:10:12,801 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 06:10:12,801 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 06:10:12,802 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:10:12,802 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 06:10:12,802 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 06:10:12,802 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 06:10:12,802 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 06:10:12,802 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 06:10:12,803 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:10:12,803 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 06:10:12,803 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:10:12,803 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 06:10:12,803 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 06:10:12,803 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 06:10:12,804 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 06:10:12,804 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:10:12,804 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 06:10:12,804 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 06:10:12,804 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 06:10:12,804 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 06:10:12,805 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 06:10:12,805 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 06:10:12,805 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_e210f8a6-6b2b-49b8-af32-271490c20062/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 -> 96fab9ebc0a7c1449817f0fde656dfd4d62824fd [2018-11-23 06:10:12,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:10:12,841 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:10:12,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:10:12,845 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:10:12,846 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:10:12,846 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product50_true-unreach-call_false-termination.cil.c [2018-11-23 06:10:12,894 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/bin-2019/utaipan/data/f86c06733/5998c53e42414bc5b15bef4b1fe04bd6/FLAG0b83b54d2 [2018-11-23 06:10:13,296 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:10:13,297 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/sv-benchmarks/c/product-lines/minepump_spec4_product50_true-unreach-call_false-termination.cil.c [2018-11-23 06:10:13,308 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/bin-2019/utaipan/data/f86c06733/5998c53e42414bc5b15bef4b1fe04bd6/FLAG0b83b54d2 [2018-11-23 06:10:13,320 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/bin-2019/utaipan/data/f86c06733/5998c53e42414bc5b15bef4b1fe04bd6 [2018-11-23 06:10:13,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:10:13,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:10:13,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:10:13,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:10:13,328 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:10:13,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:10:13" (1/1) ... [2018-11-23 06:10:13,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@458b9290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13, skipping insertion in model container [2018-11-23 06:10:13,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:10:13" (1/1) ... [2018-11-23 06:10:13,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:10:13,384 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:10:13,620 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:10:13,630 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:10:13,743 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:10:13,762 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:10:13,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13 WrapperNode [2018-11-23 06:10:13,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:10:13,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:10:13,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:10:13,764 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:10:13,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13" (1/1) ... [2018-11-23 06:10:13,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13" (1/1) ... [2018-11-23 06:10:13,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:10:13,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:10:13,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:10:13,794 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:10:13,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13" (1/1) ... [2018-11-23 06:10:13,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13" (1/1) ... [2018-11-23 06:10:13,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13" (1/1) ... [2018-11-23 06:10:13,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13" (1/1) ... [2018-11-23 06:10:13,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13" (1/1) ... [2018-11-23 06:10:13,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13" (1/1) ... [2018-11-23 06:10:13,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13" (1/1) ... [2018-11-23 06:10:13,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:10:13,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:10:13,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:10:13,830 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:10:13,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/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 [2018-11-23 06:10:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-23 06:10:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-23 06:10:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-23 06:10:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-23 06:10:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 06:10:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 06:10:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-23 06:10:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-23 06:10:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 06:10:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-23 06:10:13,874 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-23 06:10:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-23 06:10:13,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-23 06:10:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-23 06:10:13,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-23 06:10:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-23 06:10:13,875 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-23 06:10:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-23 06:10:13,875 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-23 06:10:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-23 06:10:13,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-23 06:10:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-23 06:10:13,876 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-23 06:10:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-23 06:10:13,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-23 06:10:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-23 06:10:13,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-23 06:10:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-23 06:10:13,876 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-23 06:10:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-23 06:10:13,876 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-23 06:10:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-23 06:10:13,876 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-23 06:10:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-23 06:10:13,877 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-23 06:10:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 06:10:13,877 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 06:10:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-23 06:10:13,877 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-23 06:10:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-23 06:10:13,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-23 06:10:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-23 06:10:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-23 06:10:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-23 06:10:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-23 06:10:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-23 06:10:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-23 06:10:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-23 06:10:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-23 06:10:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 06:10:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 06:10:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 06:10:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-23 06:10:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-23 06:10:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-23 06:10:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-23 06:10:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:10:13,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:10:14,333 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:10:14,333 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 06:10:14,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:10:14 BoogieIcfgContainer [2018-11-23 06:10:14,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:10:14,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 06:10:14,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 06:10:14,338 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 06:10:14,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:10:13" (1/3) ... [2018-11-23 06:10:14,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178fd627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:10:14, skipping insertion in model container [2018-11-23 06:10:14,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:10:13" (2/3) ... [2018-11-23 06:10:14,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178fd627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:10:14, skipping insertion in model container [2018-11-23 06:10:14,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:10:14" (3/3) ... [2018-11-23 06:10:14,341 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50_true-unreach-call_false-termination.cil.c [2018-11-23 06:10:14,349 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 06:10:14,355 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 06:10:14,367 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 06:10:14,394 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 06:10:14,394 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 06:10:14,394 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 06:10:14,394 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 06:10:14,395 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 06:10:14,395 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 06:10:14,395 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 06:10:14,395 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 06:10:14,412 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2018-11-23 06:10:14,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 06:10:14,420 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:14,421 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:14,423 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:14,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:14,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1165860075, now seen corresponding path program 1 times [2018-11-23 06:10:14,431 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:14,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:14,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:14,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:14,467 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:14,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:10:14,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:10:14,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 06:10:14,644 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:14,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 06:10:14,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 06:10:14,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 06:10:14,660 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2018-11-23 06:10:14,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:14,694 INFO L93 Difference]: Finished difference Result 264 states and 325 transitions. [2018-11-23 06:10:14,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 06:10:14,695 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-23 06:10:14,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:14,707 INFO L225 Difference]: With dead ends: 264 [2018-11-23 06:10:14,707 INFO L226 Difference]: Without dead ends: 132 [2018-11-23 06:10:14,711 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 06:10:14,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-11-23 06:10:14,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-11-23 06:10:14,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-11-23 06:10:14,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2018-11-23 06:10:14,759 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 46 [2018-11-23 06:10:14,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:14,760 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2018-11-23 06:10:14,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 06:10:14,760 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2018-11-23 06:10:14,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 06:10:14,763 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:14,763 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:14,764 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:14,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:14,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1493628662, now seen corresponding path program 1 times [2018-11-23 06:10:14,764 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:14,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:14,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:14,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:14,766 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:14,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:10:14,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:10:14,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 06:10:14,858 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:14,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 06:10:14,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 06:10:14,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 06:10:14,861 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2018-11-23 06:10:14,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:14,881 INFO L93 Difference]: Finished difference Result 209 states and 243 transitions. [2018-11-23 06:10:14,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 06:10:14,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-23 06:10:14,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:14,884 INFO L225 Difference]: With dead ends: 209 [2018-11-23 06:10:14,884 INFO L226 Difference]: Without dead ends: 123 [2018-11-23 06:10:14,885 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 06:10:14,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-11-23 06:10:14,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-11-23 06:10:14,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-11-23 06:10:14,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2018-11-23 06:10:14,899 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 47 [2018-11-23 06:10:14,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:14,899 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2018-11-23 06:10:14,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 06:10:14,899 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2018-11-23 06:10:14,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-23 06:10:14,901 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:14,901 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:14,901 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:14,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:14,902 INFO L82 PathProgramCache]: Analyzing trace with hash -252850339, now seen corresponding path program 1 times [2018-11-23 06:10:14,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:14,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:14,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:14,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:14,904 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:15,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:10:15,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:10:15,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 06:10:15,023 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:15,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 06:10:15,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 06:10:15,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 06:10:15,024 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 7 states. [2018-11-23 06:10:15,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:15,281 INFO L93 Difference]: Finished difference Result 222 states and 261 transitions. [2018-11-23 06:10:15,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 06:10:15,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-23 06:10:15,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:15,283 INFO L225 Difference]: With dead ends: 222 [2018-11-23 06:10:15,283 INFO L226 Difference]: Without dead ends: 123 [2018-11-23 06:10:15,283 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 06:10:15,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-11-23 06:10:15,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-11-23 06:10:15,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-11-23 06:10:15,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2018-11-23 06:10:15,294 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 52 [2018-11-23 06:10:15,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:15,294 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2018-11-23 06:10:15,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 06:10:15,295 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2018-11-23 06:10:15,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-23 06:10:15,296 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:15,297 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:15,297 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:15,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:15,298 INFO L82 PathProgramCache]: Analyzing trace with hash 207379814, now seen corresponding path program 1 times [2018-11-23 06:10:15,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:15,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:15,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:15,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:15,299 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:15,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:10:15,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:10:15,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 06:10:15,395 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:15,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 06:10:15,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 06:10:15,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 06:10:15,396 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 5 states. [2018-11-23 06:10:16,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:16,035 INFO L93 Difference]: Finished difference Result 321 states and 385 transitions. [2018-11-23 06:10:16,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 06:10:16,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-11-23 06:10:16,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:16,045 INFO L225 Difference]: With dead ends: 321 [2018-11-23 06:10:16,045 INFO L226 Difference]: Without dead ends: 222 [2018-11-23 06:10:16,046 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 06:10:16,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-11-23 06:10:16,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 203. [2018-11-23 06:10:16,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-11-23 06:10:16,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 230 transitions. [2018-11-23 06:10:16,076 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 230 transitions. Word has length 65 [2018-11-23 06:10:16,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:16,076 INFO L480 AbstractCegarLoop]: Abstraction has 203 states and 230 transitions. [2018-11-23 06:10:16,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 06:10:16,076 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 230 transitions. [2018-11-23 06:10:16,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-11-23 06:10:16,079 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:16,080 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:16,080 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:16,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:16,080 INFO L82 PathProgramCache]: Analyzing trace with hash -284843833, now seen corresponding path program 1 times [2018-11-23 06:10:16,080 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:16,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:16,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:16,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:16,082 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:16,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:10:16,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:10:16,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 06:10:16,229 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:16,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 06:10:16,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 06:10:16,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-23 06:10:16,230 INFO L87 Difference]: Start difference. First operand 203 states and 230 transitions. Second operand 10 states. [2018-11-23 06:10:16,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:16,629 INFO L93 Difference]: Finished difference Result 650 states and 804 transitions. [2018-11-23 06:10:16,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 06:10:16,630 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2018-11-23 06:10:16,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:16,634 INFO L225 Difference]: With dead ends: 650 [2018-11-23 06:10:16,634 INFO L226 Difference]: Without dead ends: 471 [2018-11-23 06:10:16,635 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-23 06:10:16,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2018-11-23 06:10:16,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 461. [2018-11-23 06:10:16,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2018-11-23 06:10:16,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 541 transitions. [2018-11-23 06:10:16,668 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 541 transitions. Word has length 79 [2018-11-23 06:10:16,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:16,668 INFO L480 AbstractCegarLoop]: Abstraction has 461 states and 541 transitions. [2018-11-23 06:10:16,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 06:10:16,669 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 541 transitions. [2018-11-23 06:10:16,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-23 06:10:16,671 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:16,672 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:16,672 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:16,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:16,672 INFO L82 PathProgramCache]: Analyzing trace with hash -200654452, now seen corresponding path program 1 times [2018-11-23 06:10:16,672 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:16,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:16,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:16,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:16,673 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:16,765 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 06:10:16,765 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:16,766 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:10:16,766 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-11-23 06:10:16,768 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], [54], [55], [58], [60], [63], [70], [73], [74], [77], [79], [81], [90], [94], [98], [101], [106], [112], [114], [120], [123], [133], [134], [135], [136], [137], [138], [139], [141], [144], [148], [149], [150], [151], [161], [164], [168], [174], [203], [207], [208], [214], [217], [219], [222], [232], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [259], [260], [261], [263], [264], [265], [266], [269], [270], [271], [272], [277], [278], [281], [282], [283], [284], [285], [286], [287], [288], [293], [294], [295], [297], [298], [299], [300] [2018-11-23 06:10:16,805 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:10:16,805 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:10:17,191 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 06:10:17,192 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Performed 2057 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2057 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-23 06:10:17,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:17,199 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 06:10:17,459 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 97.3% of their original sizes. [2018-11-23 06:10:17,459 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 06:10:17,500 INFO L415 sIntCurrentIteration]: We unified 137 AI predicates to 137 [2018-11-23 06:10:17,500 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 06:10:17,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 06:10:17,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-11-23 06:10:17,501 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:17,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 06:10:17,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 06:10:17,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 06:10:17,502 INFO L87 Difference]: Start difference. First operand 461 states and 541 transitions. Second operand 8 states. [2018-11-23 06:10:18,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:18,697 INFO L93 Difference]: Finished difference Result 978 states and 1179 transitions. [2018-11-23 06:10:18,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 06:10:18,698 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2018-11-23 06:10:18,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:18,701 INFO L225 Difference]: With dead ends: 978 [2018-11-23 06:10:18,701 INFO L226 Difference]: Without dead ends: 645 [2018-11-23 06:10:18,702 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 06:10:18,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2018-11-23 06:10:18,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 628. [2018-11-23 06:10:18,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2018-11-23 06:10:18,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 736 transitions. [2018-11-23 06:10:18,735 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 736 transitions. Word has length 138 [2018-11-23 06:10:18,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:18,735 INFO L480 AbstractCegarLoop]: Abstraction has 628 states and 736 transitions. [2018-11-23 06:10:18,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 06:10:18,735 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 736 transitions. [2018-11-23 06:10:18,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-23 06:10:18,738 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:18,739 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:18,739 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:18,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:18,739 INFO L82 PathProgramCache]: Analyzing trace with hash -894402990, now seen corresponding path program 1 times [2018-11-23 06:10:18,739 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:18,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:18,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:18,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:18,740 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:18,814 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 06:10:18,815 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:18,815 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:10:18,815 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-11-23 06:10:18,815 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], [54], [55], [58], [60], [63], [70], [73], [74], [77], [79], [81], [90], [94], [98], [101], [104], [106], [112], [114], [120], [123], [133], [134], [135], [136], [137], [138], [139], [141], [144], [148], [149], [150], [151], [161], [164], [168], [174], [203], [207], [208], [214], [217], [219], [222], [232], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [259], [260], [261], [263], [264], [265], [266], [269], [270], [271], [272], [277], [278], [281], [282], [283], [284], [285], [286], [287], [288], [293], [294], [295], [297], [298], [299], [300] [2018-11-23 06:10:18,819 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:10:18,819 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:10:19,061 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 06:10:19,061 INFO L272 AbstractInterpreter]: Visited 63 different actions 93 times. Merged at 6 different actions 6 times. Never widened. Performed 4682 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4682 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-23 06:10:19,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:19,071 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 06:10:19,246 INFO L227 lantSequenceWeakener]: Weakened 73 states. On average, predicates are now at 97.33% of their original sizes. [2018-11-23 06:10:19,246 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 06:10:19,343 INFO L415 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2018-11-23 06:10:19,344 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 06:10:19,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 06:10:19,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-11-23 06:10:19,344 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:19,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 06:10:19,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 06:10:19,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-11-23 06:10:19,345 INFO L87 Difference]: Start difference. First operand 628 states and 736 transitions. Second operand 16 states. [2018-11-23 06:10:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:22,334 INFO L93 Difference]: Finished difference Result 1155 states and 1371 transitions. [2018-11-23 06:10:22,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 06:10:22,334 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 134 [2018-11-23 06:10:22,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:22,337 INFO L225 Difference]: With dead ends: 1155 [2018-11-23 06:10:22,338 INFO L226 Difference]: Without dead ends: 551 [2018-11-23 06:10:22,340 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 141 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2018-11-23 06:10:22,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2018-11-23 06:10:22,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 526. [2018-11-23 06:10:22,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2018-11-23 06:10:22,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 610 transitions. [2018-11-23 06:10:22,374 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 610 transitions. Word has length 134 [2018-11-23 06:10:22,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:22,374 INFO L480 AbstractCegarLoop]: Abstraction has 526 states and 610 transitions. [2018-11-23 06:10:22,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 06:10:22,375 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 610 transitions. [2018-11-23 06:10:22,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-23 06:10:22,376 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:22,377 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:22,377 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:22,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:22,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1880735311, now seen corresponding path program 1 times [2018-11-23 06:10:22,377 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:22,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:22,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:22,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:22,378 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:22,447 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 06:10:22,448 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:22,448 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:10:22,448 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-11-23 06:10:22,449 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], [54], [55], [58], [60], [63], [70], [73], [74], [78], [79], [81], [90], [94], [98], [101], [104], [106], [112], [114], [120], [123], [133], [134], [135], [136], [137], [138], [139], [141], [144], [148], [149], [150], [151], [161], [164], [168], [174], [203], [207], [208], [214], [217], [219], [222], [232], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [259], [260], [261], [263], [264], [265], [266], [269], [270], [271], [272], [277], [278], [281], [282], [283], [284], [285], [286], [287], [288], [293], [294], [295], [297], [298], [299], [300] [2018-11-23 06:10:22,453 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:10:22,453 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:10:22,677 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 06:10:22,677 INFO L272 AbstractInterpreter]: Visited 58 different actions 79 times. Merged at 6 different actions 6 times. Never widened. Performed 4636 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4636 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-23 06:10:22,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:22,687 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 06:10:22,906 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 97.3% of their original sizes. [2018-11-23 06:10:22,906 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 06:10:22,970 INFO L415 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2018-11-23 06:10:22,970 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 06:10:22,971 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 06:10:22,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-11-23 06:10:22,971 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:22,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 06:10:22,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 06:10:22,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-23 06:10:22,973 INFO L87 Difference]: Start difference. First operand 526 states and 610 transitions. Second operand 12 states. [2018-11-23 06:10:24,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:24,305 INFO L93 Difference]: Finished difference Result 992 states and 1185 transitions. [2018-11-23 06:10:24,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 06:10:24,305 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 134 [2018-11-23 06:10:24,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:24,308 INFO L225 Difference]: With dead ends: 992 [2018-11-23 06:10:24,308 INFO L226 Difference]: Without dead ends: 551 [2018-11-23 06:10:24,309 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-11-23 06:10:24,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2018-11-23 06:10:24,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 526. [2018-11-23 06:10:24,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2018-11-23 06:10:24,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 609 transitions. [2018-11-23 06:10:24,330 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 609 transitions. Word has length 134 [2018-11-23 06:10:24,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:24,330 INFO L480 AbstractCegarLoop]: Abstraction has 526 states and 609 transitions. [2018-11-23 06:10:24,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 06:10:24,330 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 609 transitions. [2018-11-23 06:10:24,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-23 06:10:24,332 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:24,332 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:24,332 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:24,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:24,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1271729519, now seen corresponding path program 1 times [2018-11-23 06:10:24,332 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:24,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:24,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:24,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:24,333 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-23 06:10:24,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:10:24,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 06:10:24,420 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:24,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 06:10:24,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 06:10:24,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 06:10:24,421 INFO L87 Difference]: Start difference. First operand 526 states and 609 transitions. Second operand 6 states. [2018-11-23 06:10:24,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:24,453 INFO L93 Difference]: Finished difference Result 869 states and 1020 transitions. [2018-11-23 06:10:24,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 06:10:24,454 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-11-23 06:10:24,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:24,456 INFO L225 Difference]: With dead ends: 869 [2018-11-23 06:10:24,456 INFO L226 Difference]: Without dead ends: 536 [2018-11-23 06:10:24,457 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-23 06:10:24,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-11-23 06:10:24,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2018-11-23 06:10:24,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2018-11-23 06:10:24,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 619 transitions. [2018-11-23 06:10:24,475 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 619 transitions. Word has length 134 [2018-11-23 06:10:24,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:24,476 INFO L480 AbstractCegarLoop]: Abstraction has 536 states and 619 transitions. [2018-11-23 06:10:24,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 06:10:24,476 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 619 transitions. [2018-11-23 06:10:24,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-23 06:10:24,477 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:24,478 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:24,478 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:24,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:24,478 INFO L82 PathProgramCache]: Analyzing trace with hash 762256429, now seen corresponding path program 1 times [2018-11-23 06:10:24,478 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:24,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:24,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:24,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:24,479 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:24,548 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-23 06:10:24,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:10:24,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 06:10:24,548 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:24,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 06:10:24,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 06:10:24,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 06:10:24,549 INFO L87 Difference]: Start difference. First operand 536 states and 619 transitions. Second operand 6 states. [2018-11-23 06:10:24,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:24,643 INFO L93 Difference]: Finished difference Result 545 states and 628 transitions. [2018-11-23 06:10:24,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 06:10:24,643 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-11-23 06:10:24,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:24,645 INFO L225 Difference]: With dead ends: 545 [2018-11-23 06:10:24,645 INFO L226 Difference]: Without dead ends: 542 [2018-11-23 06:10:24,645 INFO L631 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 [2018-11-23 06:10:24,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2018-11-23 06:10:24,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 536. [2018-11-23 06:10:24,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2018-11-23 06:10:24,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 618 transitions. [2018-11-23 06:10:24,664 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 618 transitions. Word has length 134 [2018-11-23 06:10:24,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:24,665 INFO L480 AbstractCegarLoop]: Abstraction has 536 states and 618 transitions. [2018-11-23 06:10:24,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 06:10:24,665 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 618 transitions. [2018-11-23 06:10:24,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-23 06:10:24,666 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:24,666 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:24,667 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:24,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:24,667 INFO L82 PathProgramCache]: Analyzing trace with hash -559589397, now seen corresponding path program 1 times [2018-11-23 06:10:24,667 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:24,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:24,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:24,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:24,668 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:24,764 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 06:10:24,765 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:24,765 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:10:24,765 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-11-23 06:10:24,765 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [55], [58], [60], [66], [70], [73], [74], [78], [79], [80], [81], [90], [94], [98], [101], [104], [106], [112], [114], [120], [123], [133], [134], [135], [136], [137], [138], [139], [141], [146], [148], [149], [150], [151], [161], [164], [168], [174], [203], [207], [208], [214], [217], [219], [222], [229], [232], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [259], [260], [261], [263], [264], [267], [268], [269], [270], [271], [272], [277], [278], [281], [282], [283], [284], [285], [286], [287], [288], [293], [294], [295], [297], [298], [299], [300], [303], [304] [2018-11-23 06:10:24,768 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:10:24,768 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:10:25,450 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:10:25,450 INFO L272 AbstractInterpreter]: Visited 115 different actions 521 times. Merged at 19 different actions 55 times. Never widened. Performed 17117 root evaluator evaluations with a maximum evaluation depth of 5. Performed 17117 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-23 06:10:25,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:25,454 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:10:25,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:25,454 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/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 [2018-11-23 06:10:25,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:25,464 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:10:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:25,609 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:10:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:10:25,754 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:10:25,996 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 06:10:26,016 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:10:26,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-23 06:10:26,016 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:10:26,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 06:10:26,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 06:10:26,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-11-23 06:10:26,017 INFO L87 Difference]: Start difference. First operand 536 states and 618 transitions. Second operand 14 states. [2018-11-23 06:10:26,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:26,913 INFO L93 Difference]: Finished difference Result 1121 states and 1457 transitions. [2018-11-23 06:10:26,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-23 06:10:26,914 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 138 [2018-11-23 06:10:26,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:26,917 INFO L225 Difference]: With dead ends: 1121 [2018-11-23 06:10:26,917 INFO L226 Difference]: Without dead ends: 778 [2018-11-23 06:10:26,919 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 270 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2018-11-23 06:10:26,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2018-11-23 06:10:26,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 658. [2018-11-23 06:10:26,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2018-11-23 06:10:26,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 772 transitions. [2018-11-23 06:10:26,949 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 772 transitions. Word has length 138 [2018-11-23 06:10:26,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:26,950 INFO L480 AbstractCegarLoop]: Abstraction has 658 states and 772 transitions. [2018-11-23 06:10:26,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 06:10:26,950 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 772 transitions. [2018-11-23 06:10:26,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-23 06:10:26,953 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:26,953 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:26,953 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:26,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:26,953 INFO L82 PathProgramCache]: Analyzing trace with hash -696168030, now seen corresponding path program 2 times [2018-11-23 06:10:26,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:26,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:26,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:26,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:26,954 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:27,054 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-23 06:10:27,054 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:27,054 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:10:27,054 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 06:10:27,054 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 06:10:27,055 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:27,055 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/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 [2018-11-23 06:10:27,063 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 06:10:27,063 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 06:10:27,155 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-23 06:10:27,155 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 06:10:27,162 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:10:27,272 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-23 06:10:27,272 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:10:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-23 06:10:27,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 06:10:27,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 15 [2018-11-23 06:10:27,574 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:27,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 06:10:27,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 06:10:27,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-23 06:10:27,575 INFO L87 Difference]: Start difference. First operand 658 states and 772 transitions. Second operand 9 states. [2018-11-23 06:10:28,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:28,498 INFO L93 Difference]: Finished difference Result 1578 states and 1917 transitions. [2018-11-23 06:10:28,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-23 06:10:28,498 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 192 [2018-11-23 06:10:28,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:28,501 INFO L225 Difference]: With dead ends: 1578 [2018-11-23 06:10:28,502 INFO L226 Difference]: Without dead ends: 1111 [2018-11-23 06:10:28,503 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 378 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2018-11-23 06:10:28,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2018-11-23 06:10:28,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1086. [2018-11-23 06:10:28,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1086 states. [2018-11-23 06:10:28,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1263 transitions. [2018-11-23 06:10:28,542 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1263 transitions. Word has length 192 [2018-11-23 06:10:28,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:28,542 INFO L480 AbstractCegarLoop]: Abstraction has 1086 states and 1263 transitions. [2018-11-23 06:10:28,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 06:10:28,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1263 transitions. [2018-11-23 06:10:28,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-23 06:10:28,545 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:28,545 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-23 06:10:28,545 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:28,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:28,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1640224480, now seen corresponding path program 1 times [2018-11-23 06:10:28,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:28,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:28,546 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 06:10:28,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:28,547 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-23 06:10:28,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:28,630 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:10:28,630 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-11-23 06:10:28,630 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], [55], [58], [60], [66], [70], [73], [74], [78], [79], [80], [81], [90], [94], [98], [101], [104], [106], [112], [114], [120], [123], [133], [134], [135], [136], [137], [138], [139], [141], [146], [148], [149], [150], [151], [161], [164], [168], [174], [203], [207], [208], [214], [217], [219], [222], [229], [232], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [259], [260], [261], [263], [264], [267], [268], [269], [270], [271], [272], [277], [278], [281], [282], [283], [284], [285], [286], [287], [288], [293], [294], [295], [297], [298], [299], [300], [303], [304] [2018-11-23 06:10:28,632 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:10:28,632 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:10:29,587 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:10:29,588 INFO L272 AbstractInterpreter]: Visited 116 different actions 667 times. Merged at 22 different actions 82 times. Never widened. Performed 24985 root evaluator evaluations with a maximum evaluation depth of 5. Performed 24985 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-23 06:10:29,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:29,589 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:10:29,589 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:29,589 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/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 [2018-11-23 06:10:29,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:29,597 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:10:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:29,736 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:10:29,794 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-23 06:10:29,795 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:10:29,988 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-23 06:10:30,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 06:10:30,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-23 06:10:30,006 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:30,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 06:10:30,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 06:10:30,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-23 06:10:30,007 INFO L87 Difference]: Start difference. First operand 1086 states and 1263 transitions. Second operand 6 states. [2018-11-23 06:10:30,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:30,085 INFO L93 Difference]: Finished difference Result 1901 states and 2235 transitions. [2018-11-23 06:10:30,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 06:10:30,086 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2018-11-23 06:10:30,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:30,090 INFO L225 Difference]: With dead ends: 1901 [2018-11-23 06:10:30,090 INFO L226 Difference]: Without dead ends: 1008 [2018-11-23 06:10:30,092 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 379 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-23 06:10:30,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2018-11-23 06:10:30,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1008. [2018-11-23 06:10:30,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1008 states. [2018-11-23 06:10:30,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1175 transitions. [2018-11-23 06:10:30,144 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1175 transitions. Word has length 192 [2018-11-23 06:10:30,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:30,144 INFO L480 AbstractCegarLoop]: Abstraction has 1008 states and 1175 transitions. [2018-11-23 06:10:30,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 06:10:30,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1175 transitions. [2018-11-23 06:10:30,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-11-23 06:10:30,148 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:30,148 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:30,148 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:30,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:30,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1021699328, now seen corresponding path program 1 times [2018-11-23 06:10:30,149 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:30,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:30,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:30,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:30,150 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:30,244 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-11-23 06:10:30,244 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:30,244 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:10:30,245 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-11-23 06:10:30,245 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], [54], [55], [58], [60], [63], [66], [70], [73], [74], [77], [78], [79], [80], [81], [90], [94], [98], [101], [104], [106], [112], [114], [120], [123], [133], [134], [135], [136], [137], [138], [139], [141], [144], [146], [148], [149], [150], [151], [161], [164], [168], [174], [203], [207], [208], [214], [217], [219], [222], [229], [232], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [272], [277], [278], [281], [282], [283], [284], [285], [286], [287], [288], [293], [294], [295], [297], [298], [299], [300], [303], [304] [2018-11-23 06:10:30,251 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:10:30,251 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:10:31,492 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:10:31,493 INFO L272 AbstractInterpreter]: Visited 123 different actions 762 times. Merged at 33 different actions 150 times. Never widened. Performed 28927 root evaluator evaluations with a maximum evaluation depth of 5. Performed 28927 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 21 fixpoints after 5 different actions. Largest state had 133 variables. [2018-11-23 06:10:31,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:31,498 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:10:31,498 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:31,498 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/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 [2018-11-23 06:10:31,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:31,516 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:10:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:31,611 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:10:31,673 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-23 06:10:31,673 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:10:31,941 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-11-23 06:10:31,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 06:10:31,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-23 06:10:31,958 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:31,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 06:10:31,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 06:10:31,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 06:10:31,959 INFO L87 Difference]: Start difference. First operand 1008 states and 1175 transitions. Second operand 6 states. [2018-11-23 06:10:31,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:31,999 INFO L93 Difference]: Finished difference Result 1853 states and 2205 transitions. [2018-11-23 06:10:32,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 06:10:32,000 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 240 [2018-11-23 06:10:32,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:32,004 INFO L225 Difference]: With dead ends: 1853 [2018-11-23 06:10:32,004 INFO L226 Difference]: Without dead ends: 1038 [2018-11-23 06:10:32,006 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 475 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-23 06:10:32,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2018-11-23 06:10:32,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1038. [2018-11-23 06:10:32,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1038 states. [2018-11-23 06:10:32,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1207 transitions. [2018-11-23 06:10:32,039 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1207 transitions. Word has length 240 [2018-11-23 06:10:32,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:32,040 INFO L480 AbstractCegarLoop]: Abstraction has 1038 states and 1207 transitions. [2018-11-23 06:10:32,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 06:10:32,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1207 transitions. [2018-11-23 06:10:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-11-23 06:10:32,043 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:10:32,043 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:10:32,043 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:10:32,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:32,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1394137022, now seen corresponding path program 1 times [2018-11-23 06:10:32,044 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:10:32,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:32,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:32,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:10:32,045 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:10:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 76 proven. 4 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-11-23 06:10:32,138 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:32,138 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:10:32,138 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-11-23 06:10:32,138 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], [54], [55], [58], [60], [63], [66], [70], [73], [74], [77], [78], [79], [80], [81], [90], [94], [98], [101], [104], [106], [112], [114], [120], [123], [133], [134], [135], [136], [137], [138], [139], [141], [146], [148], [149], [150], [151], [161], [164], [168], [174], [203], [207], [208], [214], [217], [219], [222], [229], [232], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [272], [277], [278], [281], [282], [283], [284], [285], [286], [287], [288], [293], [294], [295], [297], [298], [299], [300], [303], [304] [2018-11-23 06:10:32,140 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:10:32,140 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:10:33,577 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:10:33,578 INFO L272 AbstractInterpreter]: Visited 122 different actions 905 times. Merged at 27 different actions 142 times. Never widened. Performed 37608 root evaluator evaluations with a maximum evaluation depth of 5. Performed 37608 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 19 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-23 06:10:33,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:10:33,586 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:10:33,586 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:10:33,586 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/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 [2018-11-23 06:10:33,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:10:33,593 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:10:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:10:33,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:10:33,708 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-11-23 06:10:33,708 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:10:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 76 proven. 4 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-11-23 06:10:33,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 06:10:33,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-23 06:10:33,938 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:10:33,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 06:10:33,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 06:10:33,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-23 06:10:33,939 INFO L87 Difference]: Start difference. First operand 1038 states and 1207 transitions. Second operand 5 states. [2018-11-23 06:10:33,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:10:33,970 INFO L93 Difference]: Finished difference Result 1338 states and 1564 transitions. [2018-11-23 06:10:33,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 06:10:33,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 240 [2018-11-23 06:10:33,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:10:33,973 INFO L225 Difference]: With dead ends: 1338 [2018-11-23 06:10:33,973 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 06:10:33,975 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 477 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-23 06:10:33,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 06:10:33,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 06:10:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 06:10:33,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 06:10:33,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2018-11-23 06:10:33,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:10:33,977 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:10:33,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 06:10:33,977 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 06:10:33,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 06:10:33,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 06:10:34,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,233 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,340 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,342 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,381 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,382 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:10:34,644 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 30 [2018-11-23 06:10:35,291 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 31 [2018-11-23 06:10:35,806 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 566 572) the Hoare annotation is: true [2018-11-23 06:10:35,806 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 566 572) no Hoare annotation was computed. [2018-11-23 06:10:35,806 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 573 581) no Hoare annotation was computed. [2018-11-23 06:10:35,806 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 573 581) the Hoare annotation is: true [2018-11-23 06:10:35,806 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 573 581) no Hoare annotation was computed. [2018-11-23 06:10:35,806 INFO L448 ceAbstractionStarter]: For program point L417(lines 417 430) no Hoare annotation was computed. [2018-11-23 06:10:35,806 INFO L448 ceAbstractionStarter]: For program point L417-1(lines 409 433) no Hoare annotation was computed. [2018-11-23 06:10:35,806 INFO L451 ceAbstractionStarter]: At program point L415(line 415) the Hoare annotation is: true [2018-11-23 06:10:35,806 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 409 433) the Hoare annotation is: true [2018-11-23 06:10:35,806 INFO L448 ceAbstractionStarter]: For program point L415-1(line 415) no Hoare annotation was computed. [2018-11-23 06:10:35,806 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 409 433) no Hoare annotation was computed. [2018-11-23 06:10:35,806 INFO L444 ceAbstractionStarter]: At program point L423(line 423) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 1))))) [2018-11-23 06:10:35,806 INFO L448 ceAbstractionStarter]: For program point L421(lines 421 427) no Hoare annotation was computed. [2018-11-23 06:10:35,806 INFO L444 ceAbstractionStarter]: At program point L419(line 419) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 1))))) [2018-11-23 06:10:35,807 INFO L448 ceAbstractionStarter]: For program point L419-1(line 419) no Hoare annotation was computed. [2018-11-23 06:10:35,807 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 515 537) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 06:10:35,807 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 515 537) no Hoare annotation was computed. [2018-11-23 06:10:35,807 INFO L444 ceAbstractionStarter]: At program point L527(line 527) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= main_~tmp~4 ~waterLevel~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 06:10:35,807 INFO L444 ceAbstractionStarter]: At program point L527-1(line 527) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= main_~tmp~4 ~waterLevel~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 06:10:35,807 INFO L448 ceAbstractionStarter]: For program point L525(lines 525 532) no Hoare annotation was computed. [2018-11-23 06:10:35,807 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 515 537) no Hoare annotation was computed. [2018-11-23 06:10:35,807 INFO L448 ceAbstractionStarter]: For program point L525-1(lines 525 532) no Hoare annotation was computed. [2018-11-23 06:10:35,807 INFO L448 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2018-11-23 06:10:35,807 INFO L444 ceAbstractionStarter]: At program point L522(line 522) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 06:10:35,807 INFO L444 ceAbstractionStarter]: At program point L521(line 521) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 06:10:35,808 INFO L444 ceAbstractionStarter]: At program point L521-1(line 521) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 06:10:35,808 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 807 815) no Hoare annotation was computed. [2018-11-23 06:10:35,808 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 807 815) the Hoare annotation is: true [2018-11-23 06:10:35,808 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 807 815) no Hoare annotation was computed. [2018-11-23 06:10:35,808 INFO L448 ceAbstractionStarter]: For program point L880(lines 880 884) no Hoare annotation was computed. [2018-11-23 06:10:35,808 INFO L451 ceAbstractionStarter]: At program point L878(line 878) the Hoare annotation is: true [2018-11-23 06:10:35,808 INFO L448 ceAbstractionStarter]: For program point L880-2(lines 880 884) no Hoare annotation was computed. [2018-11-23 06:10:35,808 INFO L448 ceAbstractionStarter]: For program point L878-1(line 878) no Hoare annotation was computed. [2018-11-23 06:10:35,808 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 871 889) the Hoare annotation is: true [2018-11-23 06:10:35,808 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 871 889) no Hoare annotation was computed. [2018-11-23 06:10:35,808 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 871 889) no Hoare annotation was computed. [2018-11-23 06:10:35,808 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 559 565) no Hoare annotation was computed. [2018-11-23 06:10:35,808 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 559 565) the Hoare annotation is: true [2018-11-23 06:10:35,808 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 502 511) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 06:10:35,808 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 502 511) no Hoare annotation was computed. [2018-11-23 06:10:35,808 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 502 511) no Hoare annotation was computed. [2018-11-23 06:10:35,808 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 788 795) the Hoare annotation is: (or (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 06:10:35,809 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 788 795) no Hoare annotation was computed. [2018-11-23 06:10:35,809 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 788 795) no Hoare annotation was computed. [2018-11-23 06:10:35,809 INFO L444 ceAbstractionStarter]: At program point L769(line 769) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or .cse0 (not (= ~waterLevel~0 1))))) [2018-11-23 06:10:35,809 INFO L444 ceAbstractionStarter]: At program point L765(line 765) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (and (<= 1 processEnvironment_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) .cse1))) [2018-11-23 06:10:35,809 INFO L448 ceAbstractionStarter]: For program point L763(lines 763 771) no Hoare annotation was computed. [2018-11-23 06:10:35,809 INFO L444 ceAbstractionStarter]: At program point L761(line 761) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (< ~waterLevel~0 1) .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-23 06:10:35,809 INFO L448 ceAbstractionStarter]: For program point L761-1(line 761) no Hoare annotation was computed. [2018-11-23 06:10:35,809 INFO L448 ceAbstractionStarter]: For program point L759(lines 759 776) no Hoare annotation was computed. [2018-11-23 06:10:35,809 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 755 779) no Hoare annotation was computed. [2018-11-23 06:10:35,809 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 755 779) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 06:10:35,809 INFO L444 ceAbstractionStarter]: At program point L774(line 774) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) .cse1) (or .cse0 (or (< ~waterLevel~0 2) .cse1)))) [2018-11-23 06:10:35,809 INFO L448 ceAbstractionStarter]: For program point L774-1(lines 755 779) no Hoare annotation was computed. [2018-11-23 06:10:35,809 INFO L448 ceAbstractionStarter]: For program point L671(lines 671 677) no Hoare annotation was computed. [2018-11-23 06:10:35,809 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 667 680) no Hoare annotation was computed. [2018-11-23 06:10:35,809 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 667 680) the Hoare annotation is: true [2018-11-23 06:10:35,809 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 667 680) no Hoare annotation was computed. [2018-11-23 06:10:35,809 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 721 727) no Hoare annotation was computed. [2018-11-23 06:10:35,810 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 721 727) the Hoare annotation is: true [2018-11-23 06:10:35,810 INFO L448 ceAbstractionStarter]: For program point L929(lines 929 935) no Hoare annotation was computed. [2018-11-23 06:10:35,810 INFO L448 ceAbstractionStarter]: For program point L929-1(lines 929 935) no Hoare annotation was computed. [2018-11-23 06:10:35,810 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 899 964) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 06:10:35,810 INFO L444 ceAbstractionStarter]: At program point L954(lines 909 956) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-23 06:10:35,810 INFO L444 ceAbstractionStarter]: At program point L921(line 921) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-23 06:10:35,810 INFO L448 ceAbstractionStarter]: For program point L919(lines 919 925) no Hoare annotation was computed. [2018-11-23 06:10:35,810 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 899 964) no Hoare annotation was computed. [2018-11-23 06:10:35,810 INFO L448 ceAbstractionStarter]: For program point L919-1(lines 919 925) no Hoare annotation was computed. [2018-11-23 06:10:35,810 INFO L448 ceAbstractionStarter]: For program point L911(lines 911 915) no Hoare annotation was computed. [2018-11-23 06:10:35,810 INFO L444 ceAbstractionStarter]: At program point L957(lines 908 958) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 06:10:35,810 INFO L448 ceAbstractionStarter]: For program point L947(lines 947 951) no Hoare annotation was computed. [2018-11-23 06:10:35,811 INFO L444 ceAbstractionStarter]: At program point L947-2(lines 939 952) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-23 06:10:35,811 INFO L448 ceAbstractionStarter]: For program point L910(lines 909 956) no Hoare annotation was computed. [2018-11-23 06:10:35,811 INFO L444 ceAbstractionStarter]: At program point L941(line 941) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-23 06:10:35,811 INFO L448 ceAbstractionStarter]: For program point L939(lines 939 952) no Hoare annotation was computed. [2018-11-23 06:10:35,811 INFO L444 ceAbstractionStarter]: At program point L931(line 931) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-23 06:10:35,811 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 899 964) no Hoare annotation was computed. [2018-11-23 06:10:35,811 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 681 689) no Hoare annotation was computed. [2018-11-23 06:10:35,811 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 681 689) the Hoare annotation is: true [2018-11-23 06:10:35,811 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 681 689) no Hoare annotation was computed. [2018-11-23 06:10:35,811 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 06:10:35,812 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 06:10:35,812 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 06:10:35,812 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 780 787) no Hoare annotation was computed. [2018-11-23 06:10:35,812 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 780 787) no Hoare annotation was computed. [2018-11-23 06:10:35,812 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 780 787) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 06:10:35,812 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 852 870) no Hoare annotation was computed. [2018-11-23 06:10:35,812 INFO L448 ceAbstractionStarter]: For program point L861(lines 861 865) no Hoare annotation was computed. [2018-11-23 06:10:35,812 INFO L451 ceAbstractionStarter]: At program point L859(line 859) the Hoare annotation is: true [2018-11-23 06:10:35,812 INFO L448 ceAbstractionStarter]: For program point L861-2(lines 861 865) no Hoare annotation was computed. [2018-11-23 06:10:35,812 INFO L448 ceAbstractionStarter]: For program point L859-1(line 859) no Hoare annotation was computed. [2018-11-23 06:10:35,812 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 852 870) the Hoare annotation is: true [2018-11-23 06:10:35,813 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 852 870) no Hoare annotation was computed. [2018-11-23 06:10:35,813 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 658 666) the Hoare annotation is: true [2018-11-23 06:10:35,813 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 658 666) no Hoare annotation was computed. [2018-11-23 06:10:35,813 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 658 666) no Hoare annotation was computed. [2018-11-23 06:10:35,813 INFO L451 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 614 625) the Hoare annotation is: true [2018-11-23 06:10:35,813 INFO L448 ceAbstractionStarter]: For program point L618-1(lines 614 625) no Hoare annotation was computed. [2018-11-23 06:10:35,813 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 614 625) no Hoare annotation was computed. [2018-11-23 06:10:35,813 INFO L444 ceAbstractionStarter]: At program point L703(line 703) the Hoare annotation is: (let ((.cse0 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1)) (or .cse2 .cse0 .cse1) (or .cse2 .cse1 (not (= |old(~waterLevel~0)| 1))))) [2018-11-23 06:10:35,813 INFO L448 ceAbstractionStarter]: For program point L701(lines 700 719) no Hoare annotation was computed. [2018-11-23 06:10:35,813 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 697 720) the Hoare annotation is: (let ((.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))))) [2018-11-23 06:10:35,813 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 697 720) no Hoare annotation was computed. [2018-11-23 06:10:35,814 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 697 720) no Hoare annotation was computed. [2018-11-23 06:10:35,814 INFO L444 ceAbstractionStarter]: At program point L710(line 710) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (or (and (= 0 ~pumpRunning~0) .cse0 .cse1) (let ((.cse2 (+ ~waterLevel~0 1))) (and (<= .cse2 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (<= |old(~waterLevel~0)| .cse2) .cse1)) (or (< |old(~waterLevel~0)| 2) .cse3)) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1) .cse3 (not (= |old(~waterLevel~0)| 1))))) [2018-11-23 06:10:35,814 INFO L444 ceAbstractionStarter]: At program point L708(lines 708 714) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (= ~systemActive~0 1))) (let ((.cse2 (not .cse4)) (.cse1 (and (<= 2 ~waterLevel~0) .cse3 .cse4))) (and (or (let ((.cse0 (+ ~waterLevel~0 1))) (and (<= .cse0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| .cse0))) .cse1 (or (< |old(~waterLevel~0)| 2) .cse2)) (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse2 .cse1 (and .cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)))))) [2018-11-23 06:10:35,814 INFO L448 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2018-11-23 06:10:35,814 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 437 466) no Hoare annotation was computed. [2018-11-23 06:10:35,814 INFO L451 ceAbstractionStarter]: At program point L447-2(lines 447 461) the Hoare annotation is: true [2018-11-23 06:10:35,814 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 437 466) the Hoare annotation is: true [2018-11-23 06:10:35,814 INFO L451 ceAbstractionStarter]: At program point L443(line 443) the Hoare annotation is: true [2018-11-23 06:10:35,814 INFO L448 ceAbstractionStarter]: For program point L443-1(line 443) no Hoare annotation was computed. [2018-11-23 06:10:35,814 INFO L451 ceAbstractionStarter]: At program point L462(lines 437 466) the Hoare annotation is: true [2018-11-23 06:10:35,814 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-23 06:10:35,815 INFO L448 ceAbstractionStarter]: For program point L451(lines 451 455) no Hoare annotation was computed. [2018-11-23 06:10:35,815 INFO L451 ceAbstractionStarter]: At program point L451-1(lines 451 455) the Hoare annotation is: true [2018-11-23 06:10:35,815 INFO L448 ceAbstractionStarter]: For program point L594-1(lines 590 601) no Hoare annotation was computed. [2018-11-23 06:10:35,815 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 590 601) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-11-23 06:10:35,815 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 590 601) no Hoare annotation was computed. [2018-11-23 06:10:35,815 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 494 500) no Hoare annotation was computed. [2018-11-23 06:10:35,815 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 494 500) the Hoare annotation is: true [2018-11-23 06:10:35,815 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 06:10:35,815 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-23 06:10:35,815 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 06:10:35,815 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 06:10:35,815 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 890 897) no Hoare annotation was computed. [2018-11-23 06:10:35,815 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 890 897) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (not (= |old(~systemActive~0)| 1)))) (and (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 (not (= ~waterLevel~0 1))) (or .cse0 (or (< ~waterLevel~0 2) .cse1)))) [2018-11-23 06:10:35,815 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 890 897) no Hoare annotation was computed. [2018-11-23 06:10:35,815 INFO L448 ceAbstractionStarter]: For program point L737(lines 737 745) no Hoare annotation was computed. [2018-11-23 06:10:35,815 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 729 753) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1))) (or .cse1 (or .cse0 (< ~waterLevel~0 2) .cse2)))) [2018-11-23 06:10:35,815 INFO L444 ceAbstractionStarter]: At program point L735(line 735) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1))) (or .cse1 (or .cse0 (< ~waterLevel~0 2) .cse2)))) [2018-11-23 06:10:35,815 INFO L448 ceAbstractionStarter]: For program point L735-1(line 735) no Hoare annotation was computed. [2018-11-23 06:10:35,816 INFO L448 ceAbstractionStarter]: For program point L733(lines 733 750) no Hoare annotation was computed. [2018-11-23 06:10:35,816 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 729 753) no Hoare annotation was computed. [2018-11-23 06:10:35,816 INFO L444 ceAbstractionStarter]: At program point L748(line 748) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))))) [2018-11-23 06:10:35,816 INFO L448 ceAbstractionStarter]: For program point L748-1(lines 729 753) no Hoare annotation was computed. [2018-11-23 06:10:35,816 INFO L444 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))) [2018-11-23 06:10:35,816 INFO L444 ceAbstractionStarter]: At program point L739(line 739) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 06:10:35,816 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 602 613) no Hoare annotation was computed. [2018-11-23 06:10:35,816 INFO L448 ceAbstractionStarter]: For program point L606-1(lines 602 613) no Hoare annotation was computed. [2018-11-23 06:10:35,816 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 602 613) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse0 .cse1 (< |old(~waterLevel~0)| 2)))) [2018-11-23 06:10:35,816 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 539 546) no Hoare annotation was computed. [2018-11-23 06:10:35,816 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 543) no Hoare annotation was computed. [2018-11-23 06:10:35,816 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 539 546) the Hoare annotation is: true [2018-11-23 06:10:35,816 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 539 546) no Hoare annotation was computed. [2018-11-23 06:10:35,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:10:35 BoogieIcfgContainer [2018-11-23 06:10:35,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 06:10:35,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:10:35,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:10:35,831 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:10:35,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:10:14" (3/4) ... [2018-11-23 06:10:35,835 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 06:10:35,841 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-23 06:10:35,841 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-23 06:10:35,841 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-23 06:10:35,841 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 06:10:35,841 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-23 06:10:35,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-23 06:10:35,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-23 06:10:35,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-23 06:10:35,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-23 06:10:35,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-23 06:10:35,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-23 06:10:35,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-23 06:10:35,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-23 06:10:35,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-23 06:10:35,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 06:10:35,843 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-23 06:10:35,843 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-23 06:10:35,843 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-23 06:10:35,843 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-23 06:10:35,843 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-23 06:10:35,843 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-23 06:10:35,843 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-23 06:10:35,843 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-23 06:10:35,844 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-23 06:10:35,844 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 06:10:35,844 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-23 06:10:35,844 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-23 06:10:35,851 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-11-23 06:10:35,852 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 06:10:35,852 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 06:10:35,853 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 06:10:35,853 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 06:10:35,853 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 06:10:35,854 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 06:10:35,879 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0 == \old(pumpRunning)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) [2018-11-23 06:10:35,880 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) [2018-11-23 06:10:35,920 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e210f8a6-6b2b-49b8-af32-271490c20062/bin-2019/utaipan/witness.graphml [2018-11-23 06:10:35,921 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:10:35,921 INFO L168 Benchmark]: Toolchain (without parser) took 22598.47 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 951.1 MB in the beginning and 1.6 GB in the end (delta: -668.7 MB). Peak memory consumption was 552.9 MB. Max. memory is 11.5 GB. [2018-11-23 06:10:35,922 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:10:35,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -157.8 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-23 06:10:35,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:10:35,922 INFO L168 Benchmark]: Boogie Preprocessor took 35.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-23 06:10:35,923 INFO L168 Benchmark]: RCFGBuilder took 504.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. [2018-11-23 06:10:35,923 INFO L168 Benchmark]: TraceAbstraction took 21495.68 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -598.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-11-23 06:10:35,923 INFO L168 Benchmark]: Witness Printer took 89.78 ms. Allocated memory is still 2.3 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-11-23 06:10:35,925 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 439.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -157.8 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 504.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21495.68 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -598.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. * Witness Printer took 89.78 ms. Allocated memory is still 2.3 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 543]: 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: 908]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 447]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 437]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: (((!(0 == \old(pumpRunning)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 145 locations, 1 error locations. SAFE Result, 21.4s OverallTime, 15 OverallIterations, 4 TraceHistogramMax, 9.0s AutomataDifference, 0.0s DeadEndRemovalTime, 1.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 2456 SDtfs, 2345 SDslu, 7698 SDs, 0 SdLazy, 4419 SolverSat, 968 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2570 GetRequests, 2381 SyntacticMatches, 24 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1086occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.2s AbstIntTime, 7 AbstIntIterations, 3 AbstIntStrong, 0.9980362245294168 AbsIntWeakeningRatio, 0.9230769230769231 AbsIntAvgWeakeningVarsNumRemoved, 38.76674937965261 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 247 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 2403 PreInvPairs, 2478 NumberOfFragments, 1067 HoareAnnotationTreeSize, 2403 FomulaSimplifications, 6174 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 60 FomulaSimplificationsInter, 9325 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 2967 NumberOfCodeBlocks, 2911 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 3944 ConstructedInterpolants, 0 QuantifiedInterpolants, 882301 SizeOfPredicates, 24 NumberOfNonLiveVariables, 4790 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 25 InterpolantComputations, 11 PerfectInterpolantSequences, 2064/2148 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...