./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label14_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label14_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/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 d50ba566f02e5109971f6a90ba216a95432a7661 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:16:45,960 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:16:45,961 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:16:45,967 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:16:45,967 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:16:45,967 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:16:45,968 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:16:45,969 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:16:45,970 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:16:45,970 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:16:45,970 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:16:45,971 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:16:45,971 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:16:45,972 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:16:45,972 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:16:45,973 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:16:45,973 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:16:45,974 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:16:45,975 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:16:45,975 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:16:45,976 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:16:45,977 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:16:45,978 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:16:45,978 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:16:45,978 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:16:45,979 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:16:45,979 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:16:45,979 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:16:45,980 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:16:45,980 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:16:45,981 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:16:45,981 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:16:45,981 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:16:45,981 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:16:45,982 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:16:45,982 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:16:45,982 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 00:16:45,989 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:16:45,989 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:16:45,990 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:16:45,990 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:16:45,990 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:16:45,990 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:16:45,991 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:16:45,991 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 00:16:45,991 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:16:45,991 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:16:45,991 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 00:16:45,991 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 00:16:45,991 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:16:45,992 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:16:45,992 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:16:45,992 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:16:45,992 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:16:45,992 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:16:45,992 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:16:45,992 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:16:45,993 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:16:45,993 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:16:45,993 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:16:45,993 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:16:45,993 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:16:45,993 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:16:45,993 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:16:45,993 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:16:45,994 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:16:45,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:16:45,994 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:16:45,994 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:16:45,994 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 00:16:45,994 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:16:45,994 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:16:45,994 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 00:16:45,994 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_a2ef97b3-0977-4f55-be1b-c20a3006309a/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 -> d50ba566f02e5109971f6a90ba216a95432a7661 [2018-12-09 00:16:46,012 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:16:46,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:16:46,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:16:46,021 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:16:46,022 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:16:46,022 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label14_true-unreach-call_false-termination.c [2018-12-09 00:16:46,058 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/data/b85d3e165/3019892c57d94d1ba80f4c551322fcb8/FLAGc3cf8ee4f [2018-12-09 00:16:46,525 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:16:46,525 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/sv-benchmarks/c/eca-rers2012/Problem01_label14_true-unreach-call_false-termination.c [2018-12-09 00:16:46,531 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/data/b85d3e165/3019892c57d94d1ba80f4c551322fcb8/FLAGc3cf8ee4f [2018-12-09 00:16:46,540 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/data/b85d3e165/3019892c57d94d1ba80f4c551322fcb8 [2018-12-09 00:16:46,542 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:16:46,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:16:46,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:16:46,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:16:46,546 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:16:46,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:16:46" (1/1) ... [2018-12-09 00:16:46,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2caf47c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46, skipping insertion in model container [2018-12-09 00:16:46,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:16:46" (1/1) ... [2018-12-09 00:16:46,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:16:46,576 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:16:46,745 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:16:46,748 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:16:46,827 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:16:46,837 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:16:46,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46 WrapperNode [2018-12-09 00:16:46,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:16:46,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:16:46,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:16:46,838 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:16:46,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46" (1/1) ... [2018-12-09 00:16:46,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46" (1/1) ... [2018-12-09 00:16:46,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:16:46,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:16:46,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:16:46,861 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:16:46,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46" (1/1) ... [2018-12-09 00:16:46,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46" (1/1) ... [2018-12-09 00:16:46,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46" (1/1) ... [2018-12-09 00:16:46,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46" (1/1) ... [2018-12-09 00:16:46,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46" (1/1) ... [2018-12-09 00:16:46,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46" (1/1) ... [2018-12-09 00:16:46,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46" (1/1) ... [2018-12-09 00:16:46,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:16:46,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:16:46,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:16:46,899 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:16:46,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:16:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:16:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:16:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 00:16:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 00:16:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:16:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:16:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:16:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:16:47,513 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:16:47,513 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 00:16:47,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:16:47 BoogieIcfgContainer [2018-12-09 00:16:47,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:16:47,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:16:47,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:16:47,517 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:16:47,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:16:46" (1/3) ... [2018-12-09 00:16:47,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd092c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:16:47, skipping insertion in model container [2018-12-09 00:16:47,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:16:46" (2/3) ... [2018-12-09 00:16:47,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd092c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:16:47, skipping insertion in model container [2018-12-09 00:16:47,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:16:47" (3/3) ... [2018-12-09 00:16:47,519 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label14_true-unreach-call_false-termination.c [2018-12-09 00:16:47,526 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:16:47,531 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:16:47,542 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:16:47,562 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:16:47,562 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:16:47,562 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:16:47,562 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:16:47,562 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:16:47,562 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:16:47,563 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:16:47,563 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:16:47,576 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-09 00:16:47,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-12-09 00:16:47,583 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:47,584 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:47,586 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:47,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:47,589 INFO L82 PathProgramCache]: Analyzing trace with hash -2085422569, now seen corresponding path program 1 times [2018-12-09 00:16:47,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:16:47,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:47,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:47,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:47,620 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:16:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:47,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:16:47,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:16:47,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:16:47,852 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:16:47,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:16:47,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:16:47,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:16:47,865 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-12-09 00:16:48,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:48,254 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-12-09 00:16:48,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:16:48,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2018-12-09 00:16:48,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:48,263 INFO L225 Difference]: With dead ends: 547 [2018-12-09 00:16:48,264 INFO L226 Difference]: Without dead ends: 278 [2018-12-09 00:16:48,267 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:16:48,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-12-09 00:16:48,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2018-12-09 00:16:48,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-09 00:16:48,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2018-12-09 00:16:48,301 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 137 [2018-12-09 00:16:48,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:48,302 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2018-12-09 00:16:48,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:16:48,302 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2018-12-09 00:16:48,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-12-09 00:16:48,305 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:48,305 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:48,305 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:48,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:48,305 INFO L82 PathProgramCache]: Analyzing trace with hash -168887712, now seen corresponding path program 1 times [2018-12-09 00:16:48,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:16:48,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:48,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:48,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:48,307 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:16:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:48,371 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:16:48,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:16:48,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 00:16:48,372 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:16:48,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 00:16:48,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 00:16:48,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:16:48,374 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 6 states. [2018-12-09 00:16:48,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:48,742 INFO L93 Difference]: Finished difference Result 840 states and 1222 transitions. [2018-12-09 00:16:48,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 00:16:48,742 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2018-12-09 00:16:48,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:48,747 INFO L225 Difference]: With dead ends: 840 [2018-12-09 00:16:48,747 INFO L226 Difference]: Without dead ends: 568 [2018-12-09 00:16:48,748 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-09 00:16:48,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2018-12-09 00:16:48,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 556. [2018-12-09 00:16:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-12-09 00:16:48,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2018-12-09 00:16:48,780 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 147 [2018-12-09 00:16:48,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:48,780 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2018-12-09 00:16:48,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 00:16:48,780 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2018-12-09 00:16:48,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-12-09 00:16:48,782 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:48,783 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:48,783 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:48,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:48,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1733990238, now seen corresponding path program 1 times [2018-12-09 00:16:48,783 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:16:48,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:48,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:48,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:48,784 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:16:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:48,944 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:16:48,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:16:48,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 00:16:48,944 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:16:48,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 00:16:48,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 00:16:48,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 00:16:48,945 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 5 states. [2018-12-09 00:16:49,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:49,274 INFO L93 Difference]: Finished difference Result 1205 states and 1730 transitions. [2018-12-09 00:16:49,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 00:16:49,274 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2018-12-09 00:16:49,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:49,277 INFO L225 Difference]: With dead ends: 1205 [2018-12-09 00:16:49,277 INFO L226 Difference]: Without dead ends: 554 [2018-12-09 00:16:49,279 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 00:16:49,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-12-09 00:16:49,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2018-12-09 00:16:49,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-09 00:16:49,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 712 transitions. [2018-12-09 00:16:49,297 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 712 transitions. Word has length 148 [2018-12-09 00:16:49,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:49,298 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 712 transitions. [2018-12-09 00:16:49,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 00:16:49,298 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 712 transitions. [2018-12-09 00:16:49,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-12-09 00:16:49,300 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:49,301 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:49,301 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:49,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:49,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1831387878, now seen corresponding path program 1 times [2018-12-09 00:16:49,301 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:16:49,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:49,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:49,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:49,302 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:16:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:49,390 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:16:49,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:16:49,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:16:49,390 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:16:49,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:16:49,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:16:49,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:16:49,391 INFO L87 Difference]: Start difference. First operand 554 states and 712 transitions. Second operand 3 states. [2018-12-09 00:16:49,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:49,641 INFO L93 Difference]: Finished difference Result 1509 states and 1959 transitions. [2018-12-09 00:16:49,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:16:49,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2018-12-09 00:16:49,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:49,645 INFO L225 Difference]: With dead ends: 1509 [2018-12-09 00:16:49,645 INFO L226 Difference]: Without dead ends: 961 [2018-12-09 00:16:49,646 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:16:49,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2018-12-09 00:16:49,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2018-12-09 00:16:49,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2018-12-09 00:16:49,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1216 transitions. [2018-12-09 00:16:49,672 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1216 transitions. Word has length 152 [2018-12-09 00:16:49,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:49,673 INFO L480 AbstractCegarLoop]: Abstraction has 961 states and 1216 transitions. [2018-12-09 00:16:49,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:16:49,673 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1216 transitions. [2018-12-09 00:16:49,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-12-09 00:16:49,676 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:49,676 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:49,676 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:49,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:49,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1301808515, now seen corresponding path program 1 times [2018-12-09 00:16:49,677 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:16:49,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:49,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:49,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:49,678 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:16:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:49,941 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:16:49,941 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:16:49,941 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:16:49,942 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-12-09 00:16:49,944 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [53], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 00:16:49,980 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:16:49,980 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:16:50,257 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 00:16:50,258 INFO L272 AbstractInterpreter]: Visited 138 different actions 138 times. Never merged. Never widened. Performed 1764 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1764 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 42 variables. [2018-12-09 00:16:50,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:50,262 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 00:16:50,484 INFO L227 lantSequenceWeakener]: Weakened 163 states. On average, predicates are now at 80.69% of their original sizes. [2018-12-09 00:16:50,485 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 00:16:50,504 INFO L418 sIntCurrentIteration]: We unified 171 AI predicates to 171 [2018-12-09 00:16:50,505 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 00:16:50,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 00:16:50,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2018-12-09 00:16:50,505 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:16:50,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 00:16:50,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 00:16:50,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:16:50,506 INFO L87 Difference]: Start difference. First operand 961 states and 1216 transitions. Second operand 6 states. [2018-12-09 00:16:51,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:51,961 INFO L93 Difference]: Finished difference Result 2052 states and 2587 transitions. [2018-12-09 00:16:51,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 00:16:51,961 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2018-12-09 00:16:51,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:51,963 INFO L225 Difference]: With dead ends: 2052 [2018-12-09 00:16:51,963 INFO L226 Difference]: Without dead ends: 1097 [2018-12-09 00:16:51,964 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 00:16:51,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-12-09 00:16:51,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1096. [2018-12-09 00:16:51,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1096 states. [2018-12-09 00:16:51,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1357 transitions. [2018-12-09 00:16:51,982 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1357 transitions. Word has length 172 [2018-12-09 00:16:51,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:51,982 INFO L480 AbstractCegarLoop]: Abstraction has 1096 states and 1357 transitions. [2018-12-09 00:16:51,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 00:16:51,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1357 transitions. [2018-12-09 00:16:51,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-12-09 00:16:51,985 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:51,985 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:51,985 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:51,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:51,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1685021730, now seen corresponding path program 1 times [2018-12-09 00:16:51,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:16:51,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:51,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:51,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:51,986 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:16:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:52,074 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 44 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 00:16:52,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:16:52,075 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:16:52,075 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 181 with the following transitions: [2018-12-09 00:16:52,075 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [53], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 00:16:52,078 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:16:52,078 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:16:52,283 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 00:16:52,283 INFO L272 AbstractInterpreter]: Visited 142 different actions 278 times. Merged at 4 different actions 4 times. Never widened. Performed 3533 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3533 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-09 00:16:52,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:52,285 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 00:16:52,480 INFO L227 lantSequenceWeakener]: Weakened 177 states. On average, predicates are now at 82.12% of their original sizes. [2018-12-09 00:16:52,481 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 00:16:52,520 INFO L418 sIntCurrentIteration]: We unified 179 AI predicates to 179 [2018-12-09 00:16:52,520 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 00:16:52,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 00:16:52,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 00:16:52,520 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:16:52,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 00:16:52,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 00:16:52,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 00:16:52,521 INFO L87 Difference]: Start difference. First operand 1096 states and 1357 transitions. Second operand 10 states. [2018-12-09 00:16:55,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:55,120 INFO L93 Difference]: Finished difference Result 2190 states and 2730 transitions. [2018-12-09 00:16:55,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 00:16:55,120 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 180 [2018-12-09 00:16:55,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:55,123 INFO L225 Difference]: With dead ends: 2190 [2018-12-09 00:16:55,123 INFO L226 Difference]: Without dead ends: 1235 [2018-12-09 00:16:55,124 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 187 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-09 00:16:55,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2018-12-09 00:16:55,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1233. [2018-12-09 00:16:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1233 states. [2018-12-09 00:16:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1503 transitions. [2018-12-09 00:16:55,142 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1503 transitions. Word has length 180 [2018-12-09 00:16:55,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:55,142 INFO L480 AbstractCegarLoop]: Abstraction has 1233 states and 1503 transitions. [2018-12-09 00:16:55,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 00:16:55,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1503 transitions. [2018-12-09 00:16:55,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-12-09 00:16:55,145 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:55,145 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:55,145 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:55,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:55,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1778916640, now seen corresponding path program 1 times [2018-12-09 00:16:55,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:16:55,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:55,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:55,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:55,146 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:16:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:55,256 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 84 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 00:16:55,256 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:16:55,256 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:16:55,256 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 214 with the following transitions: [2018-12-09 00:16:55,256 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [53], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 00:16:55,259 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:16:55,259 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:16:55,387 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 00:16:55,387 INFO L272 AbstractInterpreter]: Visited 142 different actions 278 times. Merged at 4 different actions 4 times. Never widened. Performed 3605 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3605 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-09 00:16:55,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:55,388 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 00:16:55,554 INFO L227 lantSequenceWeakener]: Weakened 210 states. On average, predicates are now at 82.03% of their original sizes. [2018-12-09 00:16:55,555 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 00:16:55,601 INFO L418 sIntCurrentIteration]: We unified 212 AI predicates to 212 [2018-12-09 00:16:55,601 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 00:16:55,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 00:16:55,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 00:16:55,601 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:16:55,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 00:16:55,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 00:16:55,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 00:16:55,602 INFO L87 Difference]: Start difference. First operand 1233 states and 1503 transitions. Second operand 10 states. [2018-12-09 00:16:57,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:57,555 INFO L93 Difference]: Finished difference Result 2464 states and 3064 transitions. [2018-12-09 00:16:57,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-09 00:16:57,555 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2018-12-09 00:16:57,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:57,558 INFO L225 Difference]: With dead ends: 2464 [2018-12-09 00:16:57,558 INFO L226 Difference]: Without dead ends: 1509 [2018-12-09 00:16:57,559 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 221 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-09 00:16:57,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2018-12-09 00:16:57,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1507. [2018-12-09 00:16:57,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1507 states. [2018-12-09 00:16:57,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1800 transitions. [2018-12-09 00:16:57,577 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1800 transitions. Word has length 213 [2018-12-09 00:16:57,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:57,577 INFO L480 AbstractCegarLoop]: Abstraction has 1507 states and 1800 transitions. [2018-12-09 00:16:57,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 00:16:57,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1800 transitions. [2018-12-09 00:16:57,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-12-09 00:16:57,580 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:57,580 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:57,580 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:57,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:57,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1293545189, now seen corresponding path program 1 times [2018-12-09 00:16:57,580 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:16:57,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:57,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:57,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:57,581 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:16:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:57,656 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 81 proven. 40 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-09 00:16:57,656 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:16:57,656 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:16:57,657 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-12-09 00:16:57,657 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [53], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 00:16:57,659 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:16:57,659 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:16:57,933 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 00:16:57,933 INFO L272 AbstractInterpreter]: Visited 144 different actions 575 times. Merged at 8 different actions 32 times. Widened at 1 different actions 1 times. Performed 7862 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7862 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-09 00:16:57,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:57,936 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 00:16:57,936 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:16:57,936 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 00:16:57,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:57,942 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 00:16:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:58,004 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:16:58,057 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 98 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-12-09 00:16:58,057 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 00:16:58,149 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 86 proven. 33 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-09 00:16:58,165 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 00:16:58,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-12-09 00:16:58,165 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 00:16:58,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 00:16:58,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 00:16:58,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-12-09 00:16:58,166 INFO L87 Difference]: Start difference. First operand 1507 states and 1800 transitions. Second operand 11 states. [2018-12-09 00:16:59,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:16:59,169 INFO L93 Difference]: Finished difference Result 4684 states and 5951 transitions. [2018-12-09 00:16:59,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 00:16:59,169 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 221 [2018-12-09 00:16:59,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:16:59,176 INFO L225 Difference]: With dead ends: 4684 [2018-12-09 00:16:59,177 INFO L226 Difference]: Without dead ends: 3592 [2018-12-09 00:16:59,179 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 445 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2018-12-09 00:16:59,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3592 states. [2018-12-09 00:16:59,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3592 to 3588. [2018-12-09 00:16:59,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3588 states. [2018-12-09 00:16:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 4398 transitions. [2018-12-09 00:16:59,224 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 4398 transitions. Word has length 221 [2018-12-09 00:16:59,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:16:59,225 INFO L480 AbstractCegarLoop]: Abstraction has 3588 states and 4398 transitions. [2018-12-09 00:16:59,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 00:16:59,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 4398 transitions. [2018-12-09 00:16:59,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-12-09 00:16:59,230 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:16:59,230 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:16:59,231 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:16:59,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:59,231 INFO L82 PathProgramCache]: Analyzing trace with hash -182889000, now seen corresponding path program 1 times [2018-12-09 00:16:59,231 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:16:59,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:59,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:59,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:16:59,232 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:16:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:59,319 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 79 proven. 41 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 00:16:59,320 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:16:59,320 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:16:59,320 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-12-09 00:16:59,320 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [109], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 00:16:59,322 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:16:59,322 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:16:59,587 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 00:16:59,587 INFO L272 AbstractInterpreter]: Visited 143 different actions 568 times. Merged at 7 different actions 29 times. Never widened. Performed 7699 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7699 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-09 00:16:59,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:16:59,589 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 00:16:59,589 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:16:59,589 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/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 [2018-12-09 00:16:59,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:16:59,595 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 00:16:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:16:59,641 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:16:59,678 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-12-09 00:16:59,679 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 00:16:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 84 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-12-09 00:16:59,780 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 00:16:59,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-12-09 00:16:59,780 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 00:16:59,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 00:16:59,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 00:16:59,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-12-09 00:16:59,781 INFO L87 Difference]: Start difference. First operand 3588 states and 4398 transitions. Second operand 12 states. [2018-12-09 00:17:01,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:17:01,625 INFO L93 Difference]: Finished difference Result 9231 states and 12121 transitions. [2018-12-09 00:17:01,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-12-09 00:17:01,625 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 220 [2018-12-09 00:17:01,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:17:01,646 INFO L225 Difference]: With dead ends: 9231 [2018-12-09 00:17:01,646 INFO L226 Difference]: Without dead ends: 5921 [2018-12-09 00:17:01,654 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 465 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=411, Invalid=1395, Unknown=0, NotChecked=0, Total=1806 [2018-12-09 00:17:01,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2018-12-09 00:17:01,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 4916. [2018-12-09 00:17:01,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4916 states. [2018-12-09 00:17:01,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4916 states to 4916 states and 6171 transitions. [2018-12-09 00:17:01,738 INFO L78 Accepts]: Start accepts. Automaton has 4916 states and 6171 transitions. Word has length 220 [2018-12-09 00:17:01,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:17:01,738 INFO L480 AbstractCegarLoop]: Abstraction has 4916 states and 6171 transitions. [2018-12-09 00:17:01,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 00:17:01,738 INFO L276 IsEmpty]: Start isEmpty. Operand 4916 states and 6171 transitions. [2018-12-09 00:17:01,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-12-09 00:17:01,747 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:17:01,747 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:17:01,747 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:17:01,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:17:01,748 INFO L82 PathProgramCache]: Analyzing trace with hash -514087954, now seen corresponding path program 1 times [2018-12-09 00:17:01,748 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:17:01,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:17:01,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:17:01,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:17:01,749 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:17:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:17:01,854 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 95 proven. 32 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 00:17:01,854 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:17:01,854 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:17:01,854 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-12-09 00:17:01,854 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [109], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [173], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 00:17:01,856 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:17:01,856 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:17:02,093 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 00:17:02,093 INFO L272 AbstractInterpreter]: Visited 142 different actions 418 times. Merged at 6 different actions 12 times. Never widened. Performed 5418 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5418 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-09 00:17:02,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:17:02,101 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 00:17:02,257 INFO L227 lantSequenceWeakener]: Weakened 226 states. On average, predicates are now at 83.62% of their original sizes. [2018-12-09 00:17:02,257 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 00:17:02,294 INFO L418 sIntCurrentIteration]: We unified 228 AI predicates to 228 [2018-12-09 00:17:02,294 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 00:17:02,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 00:17:02,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-12-09 00:17:02,295 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:17:02,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 00:17:02,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 00:17:02,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 00:17:02,295 INFO L87 Difference]: Start difference. First operand 4916 states and 6171 transitions. Second operand 9 states. [2018-12-09 00:17:03,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:17:03,578 INFO L93 Difference]: Finished difference Result 10380 states and 13066 transitions. [2018-12-09 00:17:03,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 00:17:03,578 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 229 [2018-12-09 00:17:03,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:17:03,589 INFO L225 Difference]: With dead ends: 10380 [2018-12-09 00:17:03,589 INFO L226 Difference]: Without dead ends: 6020 [2018-12-09 00:17:03,597 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 234 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-12-09 00:17:03,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2018-12-09 00:17:03,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 5881. [2018-12-09 00:17:03,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5881 states. [2018-12-09 00:17:03,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5881 states to 5881 states and 7220 transitions. [2018-12-09 00:17:03,669 INFO L78 Accepts]: Start accepts. Automaton has 5881 states and 7220 transitions. Word has length 229 [2018-12-09 00:17:03,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:17:03,669 INFO L480 AbstractCegarLoop]: Abstraction has 5881 states and 7220 transitions. [2018-12-09 00:17:03,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 00:17:03,669 INFO L276 IsEmpty]: Start isEmpty. Operand 5881 states and 7220 transitions. [2018-12-09 00:17:03,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2018-12-09 00:17:03,677 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:17:03,677 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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:17:03,678 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:17:03,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:17:03,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1405086944, now seen corresponding path program 1 times [2018-12-09 00:17:03,678 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:17:03,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:17:03,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:17:03,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:17:03,679 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:17:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:17:03,818 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 168 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:17:03,818 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:17:03,818 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:17:03,818 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 246 with the following transitions: [2018-12-09 00:17:03,818 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [105], [106], [109], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 00:17:03,820 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:17:03,820 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:17:04,082 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 00:17:04,082 INFO L272 AbstractInterpreter]: Visited 143 different actions 564 times. Merged at 7 different actions 25 times. Never widened. Performed 7795 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7795 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 6 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-09 00:17:04,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:17:04,085 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 00:17:04,085 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:17:04,085 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/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 [2018-12-09 00:17:04,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:17:04,091 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 00:17:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:17:04,140 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:17:04,181 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-12-09 00:17:04,182 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 00:17:04,222 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-12-09 00:17:04,237 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 00:17:04,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-12-09 00:17:04,237 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:17:04,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:17:04,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:17:04,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-09 00:17:04,238 INFO L87 Difference]: Start difference. First operand 5881 states and 7220 transitions. Second operand 3 states. [2018-12-09 00:17:04,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:17:04,495 INFO L93 Difference]: Finished difference Result 12612 states and 16025 transitions. [2018-12-09 00:17:04,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:17:04,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2018-12-09 00:17:04,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:17:04,513 INFO L225 Difference]: With dead ends: 12612 [2018-12-09 00:17:04,513 INFO L226 Difference]: Without dead ends: 8252 [2018-12-09 00:17:04,522 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 488 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-09 00:17:04,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8252 states. [2018-12-09 00:17:04,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8252 to 7696. [2018-12-09 00:17:04,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7696 states. [2018-12-09 00:17:04,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7696 states to 7696 states and 9608 transitions. [2018-12-09 00:17:04,623 INFO L78 Accepts]: Start accepts. Automaton has 7696 states and 9608 transitions. Word has length 245 [2018-12-09 00:17:04,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:17:04,623 INFO L480 AbstractCegarLoop]: Abstraction has 7696 states and 9608 transitions. [2018-12-09 00:17:04,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:17:04,624 INFO L276 IsEmpty]: Start isEmpty. Operand 7696 states and 9608 transitions. [2018-12-09 00:17:04,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-12-09 00:17:04,635 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:17:04,635 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:17:04,635 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:17:04,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:17:04,635 INFO L82 PathProgramCache]: Analyzing trace with hash -807166429, now seen corresponding path program 1 times [2018-12-09 00:17:04,635 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:17:04,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:17:04,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:17:04,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:17:04,636 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:17:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:17:04,741 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 164 proven. 51 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-09 00:17:04,741 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:17:04,741 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:17:04,741 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 256 with the following transitions: [2018-12-09 00:17:04,741 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [89], [90], [94], [98], [102], [105], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 00:17:04,743 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:17:04,743 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:17:05,020 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 00:17:05,021 INFO L272 AbstractInterpreter]: Visited 144 different actions 570 times. Merged at 8 different actions 27 times. Never widened. Performed 7928 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7928 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-09 00:17:05,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:17:05,022 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 00:17:05,022 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:17:05,022 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/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 [2018-12-09 00:17:05,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:17:05,028 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 00:17:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:17:05,089 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:17:05,180 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 156 proven. 25 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-12-09 00:17:05,181 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 00:17:05,250 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-12-09 00:17:05,266 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 00:17:05,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 12 [2018-12-09 00:17:05,266 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 00:17:05,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 00:17:05,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 00:17:05,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-12-09 00:17:05,266 INFO L87 Difference]: Start difference. First operand 7696 states and 9608 transitions. Second operand 11 states. [2018-12-09 00:17:06,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:17:06,770 INFO L93 Difference]: Finished difference Result 17179 states and 27029 transitions. [2018-12-09 00:17:06,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-12-09 00:17:06,771 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2018-12-09 00:17:06,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:17:06,811 INFO L225 Difference]: With dead ends: 17179 [2018-12-09 00:17:06,811 INFO L226 Difference]: Without dead ends: 11002 [2018-12-09 00:17:06,827 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 528 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=343, Invalid=1463, Unknown=0, NotChecked=0, Total=1806 [2018-12-09 00:17:06,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11002 states. [2018-12-09 00:17:07,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11002 to 9107. [2018-12-09 00:17:07,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9107 states. [2018-12-09 00:17:07,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9107 states to 9107 states and 11004 transitions. [2018-12-09 00:17:07,019 INFO L78 Accepts]: Start accepts. Automaton has 9107 states and 11004 transitions. Word has length 255 [2018-12-09 00:17:07,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:17:07,020 INFO L480 AbstractCegarLoop]: Abstraction has 9107 states and 11004 transitions. [2018-12-09 00:17:07,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 00:17:07,020 INFO L276 IsEmpty]: Start isEmpty. Operand 9107 states and 11004 transitions. [2018-12-09 00:17:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-12-09 00:17:07,033 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:17:07,033 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:17:07,033 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:17:07,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:17:07,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1577156162, now seen corresponding path program 1 times [2018-12-09 00:17:07,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:17:07,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:17:07,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:17:07,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:17:07,034 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:17:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:17:07,138 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 259 proven. 154 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-12-09 00:17:07,138 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:17:07,138 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:17:07,138 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 310 with the following transitions: [2018-12-09 00:17:07,138 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [37], [38], [42], [45], [46], [50], [53], [54], [58], [62], [66], [70], [74], [78], [82], [86], [89], [90], [94], [98], [102], [105], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 00:17:07,140 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:17:07,140 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:17:07,463 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 00:17:07,463 INFO L272 AbstractInterpreter]: Visited 147 different actions 586 times. Merged at 11 different actions 31 times. Never widened. Performed 8063 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8063 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 11 fixpoints after 5 different actions. Largest state had 42 variables. [2018-12-09 00:17:07,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:17:07,465 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 00:17:07,465 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:17:07,465 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/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 [2018-12-09 00:17:07,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:17:07,471 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 00:17:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:17:07,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:17:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 346 proven. 2 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2018-12-09 00:17:07,588 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 00:17:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 266 proven. 18 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-12-09 00:17:07,678 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 00:17:07,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 15 [2018-12-09 00:17:07,679 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 00:17:07,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 00:17:07,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 00:17:07,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-12-09 00:17:07,680 INFO L87 Difference]: Start difference. First operand 9107 states and 11004 transitions. Second operand 12 states. [2018-12-09 00:17:08,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:17:08,835 INFO L93 Difference]: Finished difference Result 17473 states and 21852 transitions. [2018-12-09 00:17:08,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-12-09 00:17:08,836 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 309 [2018-12-09 00:17:08,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:17:08,853 INFO L225 Difference]: With dead ends: 17473 [2018-12-09 00:17:08,853 INFO L226 Difference]: Without dead ends: 9885 [2018-12-09 00:17:08,864 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 638 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=387, Invalid=1505, Unknown=0, NotChecked=0, Total=1892 [2018-12-09 00:17:08,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9885 states. [2018-12-09 00:17:08,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9885 to 9079. [2018-12-09 00:17:08,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9079 states. [2018-12-09 00:17:08,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9079 states to 9079 states and 10863 transitions. [2018-12-09 00:17:08,989 INFO L78 Accepts]: Start accepts. Automaton has 9079 states and 10863 transitions. Word has length 309 [2018-12-09 00:17:08,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:17:08,990 INFO L480 AbstractCegarLoop]: Abstraction has 9079 states and 10863 transitions. [2018-12-09 00:17:08,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 00:17:08,990 INFO L276 IsEmpty]: Start isEmpty. Operand 9079 states and 10863 transitions. [2018-12-09 00:17:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-12-09 00:17:09,001 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:17:09,001 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:17:09,001 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:17:09,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:17:09,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1809530709, now seen corresponding path program 1 times [2018-12-09 00:17:09,001 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:17:09,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:17:09,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:17:09,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:17:09,002 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:17:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:17:09,093 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 257 proven. 18 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2018-12-09 00:17:09,094 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:17:09,094 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:17:09,094 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 318 with the following transitions: [2018-12-09 00:17:09,094 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [45], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [89], [90], [94], [98], [102], [106], [109], [110], [114], [118], [122], [126], [129], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 00:17:09,095 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:17:09,096 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:17:09,364 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 00:17:09,365 INFO L272 AbstractInterpreter]: Visited 146 different actions 578 times. Merged at 8 different actions 27 times. Never widened. Performed 8018 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8018 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 4 different actions. Largest state had 42 variables. [2018-12-09 00:17:09,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:17:09,367 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 00:17:09,367 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:17:09,367 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 00:17:09,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:17:09,372 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 00:17:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:17:09,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:17:09,502 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2018-12-09 00:17:09,502 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 00:17:09,562 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 257 proven. 18 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2018-12-09 00:17:09,577 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 00:17:09,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-12-09 00:17:09,577 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 00:17:09,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 00:17:09,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 00:17:09,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-09 00:17:09,578 INFO L87 Difference]: Start difference. First operand 9079 states and 10863 transitions. Second operand 9 states. [2018-12-09 00:17:10,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:17:10,135 INFO L93 Difference]: Finished difference Result 16494 states and 20260 transitions. [2018-12-09 00:17:10,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 00:17:10,136 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 317 [2018-12-09 00:17:10,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:17:10,136 INFO L225 Difference]: With dead ends: 16494 [2018-12-09 00:17:10,136 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 00:17:10,155 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2018-12-09 00:17:10,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 00:17:10,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 00:17:10,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 00:17:10,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 00:17:10,156 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 317 [2018-12-09 00:17:10,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:17:10,156 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:17:10,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 00:17:10,156 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 00:17:10,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 00:17:10,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 00:17:10,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,441 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,462 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,494 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,507 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,512 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,530 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,556 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,864 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,915 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,932 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,945 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,962 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:10,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,002 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,012 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,065 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,183 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,183 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,269 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,284 WARN L180 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 876 DAG size of output: 380 [2018-12-09 00:17:11,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,334 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,335 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,412 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,484 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,485 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,550 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,784 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,823 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,826 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,866 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,910 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,917 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,926 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,937 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,942 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,962 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,972 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:11,996 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:12,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:12,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:12,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:12,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:12,059 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:12,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:12,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:12,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:12,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:17:12,151 WARN L180 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 888 DAG size of output: 376 [2018-12-09 00:17:13,744 WARN L180 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 299 DAG size of output: 107 [2018-12-09 00:17:14,871 WARN L180 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 366 DAG size of output: 76 [2018-12-09 00:17:15,982 WARN L180 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 361 DAG size of output: 76 [2018-12-09 00:17:15,983 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a20~0)| ~a20~0) (= ~a17~0 |old(~a17~0)|) (<= |old(~a8~0)| ~a8~0) (= |old(~a16~0)| ~a16~0) (= ~a21~0 |old(~a21~0)|)) [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-09 00:17:15,984 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,985 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-09 00:17:15,986 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,987 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,988 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse22 (= 1 |old(~a20~0)|))) (let ((.cse23 (= 1 ~a21~0)) (.cse24 (= |old(~a20~0)| ~a20~0)) (.cse25 (= ~a7~0 |old(~a7~0)|)) (.cse26 (= ~a17~0 |old(~a17~0)|)) (.cse27 (= ~a16~0 |old(~a16~0)|)) (.cse28 (<= |old(~a8~0)| ~a8~0)) (.cse11 (not .cse22)) (.cse2 (not (= 8 ~a12~0))) (.cse14 (< 0 |old(~a17~0)|))) (let ((.cse5 (< 0 |old(~a20~0)|)) (.cse15 (< |old(~a8~0)| 14)) (.cse18 (< |old(~a20~0)| 1)) (.cse16 (or .cse11 .cse2 .cse14)) (.cse9 (= 6 |old(~a16~0)|)) (.cse20 (and .cse24 (= ~a21~0 |old(~a21~0)|) .cse25 .cse26 .cse27 .cse28)) (.cse19 (< 0 |old(~a21~0)|)) (.cse21 (not (= 4 |old(~a16~0)|))) (.cse13 (< |old(~a16~0)| 5)) (.cse4 (and .cse24 .cse25 .cse26 .cse27 .cse28 .cse23)) (.cse1 (= 1 |old(~a7~0)|)) (.cse3 (< |old(~a8~0)| 15)) (.cse10 (not (= 0 |old(~a7~0)|))) (.cse0 (not (= 1 |old(~a21~0)|))) (.cse8 (= |calculate_output_#in~input| 0)) (.cse6 (not (= 1 |old(~a17~0)|))) (.cse7 (= ~a8~0 15)) (.cse12 (not (= 15 |old(~a8~0)|))) (.cse17 (not (= 5 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse7 (and (or .cse8 (or (not .cse9) .cse10 .cse0 .cse11 .cse12 (not (= 0 |old(~a17~0)|)) .cse2)) (or .cse9 .cse10 .cse0 .cse13 .cse12 (not (= |old(~a20~0)| 1)) .cse2 .cse14 .cse8))) (or .cse4 .cse0 .cse13 .cse15 .cse16) (or .cse10 .cse0 .cse7 .cse2 .cse14 .cse8 .cse12 .cse17) (or .cse9 .cse0 .cse15 .cse2 .cse4 .cse14 .cse5) (or .cse13 .cse2 .cse18 .cse14 .cse19 .cse20) (or .cse10 .cse0 .cse21 .cse2 .cse14 .cse8 .cse11 .cse12 .cse7) (or .cse0 .cse1 .cse13 .cse11 .cse2 .cse4 .cse6) (or .cse0 (or .cse9 .cse1 .cse2 .cse22) .cse4 .cse3 .cse6) (or .cse4 .cse9 .cse0 .cse13 .cse15 .cse2 .cse14) (or .cse0 (or .cse1 .cse21 .cse2 .cse14) .cse4) (or .cse0 .cse1 .cse21 .cse4 .cse2 .cse18 .cse6) (or .cse20 (or .cse16 .cse19)) (or .cse9 .cse20 .cse2 .cse19 .cse6) (or .cse0 .cse11 .cse21 (and (= 1 ~a7~0) (= 1 ~a20~0) (= 13 ~a8~0) (= |old(~a16~0)| ~a16~0) .cse23 (= 1 ~a17~0)) .cse2 (not .cse1) (not (= 13 |old(~a8~0)|)) .cse6) (or .cse0 .cse13 .cse4 (or .cse1 .cse2 .cse14) .cse3) (or .cse10 .cse0 .cse2 .cse8 .cse6 .cse7 .cse12 .cse17))))) [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 569) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,989 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-09 00:17:15,990 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-09 00:17:15,991 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:17:15,992 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= 1 ~a21~0) (= ~a12~0 8) (= ~a20~0 1) (= 1 ~a17~0) (= ~a16~0 5)) [2018-12-09 00:17:15,992 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:17:15,992 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:17:15,992 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (and (= ~a8~0 15) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= 1 ~a21~0) (= ~a20~0 1) (= ~a16~0 5)) (not (= 8 ~a12~0)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|))) [2018-12-09 00:17:15,992 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-09 00:17:15,992 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse3 (<= ~a20~0 0)) (.cse9 (<= 14 ~a8~0)) (.cse5 (<= ~a21~0 0)) (.cse11 (= |old(~a20~0)| ~a20~0)) (.cse10 (not (= ~a16~0 6))) (.cse12 (= ~a16~0 4)) (.cse8 (<= 1 ~a20~0)) (.cse4 (= 1 ~a17~0)) (.cse0 (not (= ~a7~0 1))) (.cse1 (<= 15 ~a8~0)) (.cse6 (<= ~a17~0 0)) (.cse7 (<= 5 ~a16~0)) (.cse2 (= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse8) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse9 .cse10 .cse6 .cse2 .cse3) (and .cse11 .cse9 .cse6 .cse2 .cse7) (and (= 1 ~a20~0) (= 13 ~a8~0) (= 4 ~a16~0) .cse2 .cse4) (not (= 1 |old(~a21~0)|)) (and .cse9 .cse10 .cse2 .cse6 .cse7) (not (= 8 ~a12~0)) (and .cse0 .cse11 .cse2 .cse7 .cse4) (and .cse5 .cse10 .cse4) (and .cse2 (and .cse0 .cse12 .cse6)) (and .cse5 .cse11 .cse6) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (and (and (and (not (= ~a20~0 1)) .cse0 .cse10) .cse1 .cse4) (= ~a21~0 |old(~a21~0)|)) (and .cse2 (and .cse0 .cse12 .cse8) .cse4) (and (and .cse0 .cse1 .cse6 .cse7) .cse2))) [2018-12-09 00:17:15,992 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-09 00:17:15,992 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-09 00:17:15,992 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (<= ~a20~0 0)) (.cse9 (<= 14 ~a8~0)) (.cse5 (<= ~a21~0 0)) (.cse11 (= |old(~a20~0)| ~a20~0)) (.cse10 (not (= ~a16~0 6))) (.cse12 (= ~a16~0 4)) (.cse8 (<= 1 ~a20~0)) (.cse4 (= 1 ~a17~0)) (.cse0 (not (= ~a7~0 1))) (.cse1 (<= 15 ~a8~0)) (.cse6 (<= ~a17~0 0)) (.cse7 (<= 5 ~a16~0)) (.cse2 (= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse8) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse9 .cse10 .cse6 .cse2 .cse3) (and .cse11 .cse9 .cse6 .cse2 .cse7) (and (= 1 ~a20~0) (= 13 ~a8~0) (= 4 ~a16~0) .cse2 .cse4) (not (= 1 |old(~a21~0)|)) (and .cse9 .cse10 .cse2 .cse6 .cse7) (not (= 8 ~a12~0)) (and .cse0 .cse11 .cse2 .cse7 .cse4) (and .cse5 .cse10 .cse4) (and .cse2 (and .cse0 .cse12 .cse6)) (and .cse5 .cse11 .cse6) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (and (and (and (not (= ~a20~0 1)) .cse0 .cse10) .cse1 .cse4) (= ~a21~0 |old(~a21~0)|)) (and .cse2 (and .cse0 .cse12 .cse8) .cse4) (and (and .cse0 .cse1 .cse6 .cse7) .cse2))) [2018-12-09 00:17:15,992 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-09 00:17:16,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:17:16 BoogieIcfgContainer [2018-12-09 00:17:16,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:17:16,002 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:17:16,002 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:17:16,002 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:17:16,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:16:47" (3/4) ... [2018-12-09 00:17:16,004 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 00:17:16,008 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 00:17:16,008 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 00:17:16,008 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 00:17:16,014 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 00:17:16,015 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 00:17:16,036 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((!(a7 == 1) && 15 <= a8) && 1 == a21) && a20 <= 0) && 1 == a17) || (((a21 <= 0 && a17 <= 0) && 5 <= a16) && 1 <= a20)) || !(1 == \old(a20))) || !(5 == \old(a16))) || ((((14 <= a8 && !(a16 == 6)) && a17 <= 0) && 1 == a21) && a20 <= 0)) || ((((\old(a20) == a20 && 14 <= a8) && a17 <= 0) && 1 == a21) && 5 <= a16)) || ((((1 == a20 && 13 == a8) && 4 == a16) && 1 == a21) && 1 == a17)) || !(1 == \old(a21))) || ((((14 <= a8 && !(a16 == 6)) && 1 == a21) && a17 <= 0) && 5 <= a16)) || !(8 == a12)) || ((((!(a7 == 1) && \old(a20) == a20) && 1 == a21) && 5 <= a16) && 1 == a17)) || ((a21 <= 0 && !(a16 == 6)) && 1 == a17)) || (1 == a21 && (!(a7 == 1) && a16 == 4) && a17 <= 0)) || ((a21 <= 0 && \old(a20) == a20) && a17 <= 0)) || !(0 == \old(a7))) || !(1 == \old(a17))) || !(15 == \old(a8))) || (((((!(a20 == 1) && !(a7 == 1)) && !(a16 == 6)) && 15 <= a8) && 1 == a17) && a21 == \old(a21))) || ((1 == a21 && (!(a7 == 1) && a16 == 4) && 1 <= a20) && 1 == a17)) || ((((!(a7 == 1) && 15 <= a8) && a17 <= 0) && 5 <= a16) && 1 == a21) [2018-12-09 00:17:16,097 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a2ef97b3-0977-4f55-be1b-c20a3006309a/bin-2019/utaipan/witness.graphml [2018-12-09 00:17:16,097 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:17:16,098 INFO L168 Benchmark]: Toolchain (without parser) took 29555.39 ms. Allocated memory was 1.0 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 942.7 MB in the beginning and 2.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 566.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:17:16,098 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:17:16,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 942.7 MB in the beginning and 1.1 GB in the end (delta: -162.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 11.5 GB. [2018-12-09 00:17:16,099 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:17:16,099 INFO L168 Benchmark]: Boogie Preprocessor took 38.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:17:16,099 INFO L168 Benchmark]: RCFGBuilder took 615.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 995.4 MB in the end (delta: 99.0 MB). Peak memory consumption was 99.0 MB. Max. memory is 11.5 GB. [2018-12-09 00:17:16,099 INFO L168 Benchmark]: TraceAbstraction took 28487.07 ms. Allocated memory was 1.1 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 990.0 MB in the beginning and 2.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. [2018-12-09 00:17:16,100 INFO L168 Benchmark]: Witness Printer took 95.38 ms. Allocated memory is still 2.7 GB. Free memory is still 2.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:17:16,101 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 942.7 MB in the beginning and 1.1 GB in the end (delta: -162.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 615.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 995.4 MB in the end (delta: 99.0 MB). Peak memory consumption was 99.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 28487.07 ms. Allocated memory was 1.1 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 990.0 MB in the beginning and 2.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. * Witness Printer took 95.38 ms. Allocated memory is still 2.7 GB. Free memory is still 2.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 569]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((!(a7 == 1) && 15 <= a8) && 1 == a21) && a20 <= 0) && 1 == a17) || (((a21 <= 0 && a17 <= 0) && 5 <= a16) && 1 <= a20)) || !(1 == \old(a20))) || !(5 == \old(a16))) || ((((14 <= a8 && !(a16 == 6)) && a17 <= 0) && 1 == a21) && a20 <= 0)) || ((((\old(a20) == a20 && 14 <= a8) && a17 <= 0) && 1 == a21) && 5 <= a16)) || ((((1 == a20 && 13 == a8) && 4 == a16) && 1 == a21) && 1 == a17)) || !(1 == \old(a21))) || ((((14 <= a8 && !(a16 == 6)) && 1 == a21) && a17 <= 0) && 5 <= a16)) || !(8 == a12)) || ((((!(a7 == 1) && \old(a20) == a20) && 1 == a21) && 5 <= a16) && 1 == a17)) || ((a21 <= 0 && !(a16 == 6)) && 1 == a17)) || (1 == a21 && (!(a7 == 1) && a16 == 4) && a17 <= 0)) || ((a21 <= 0 && \old(a20) == a20) && a17 <= 0)) || !(0 == \old(a7))) || !(1 == \old(a17))) || !(15 == \old(a8))) || (((((!(a20 == 1) && !(a7 == 1)) && !(a16 == 6)) && 15 <= a8) && 1 == a17) && a21 == \old(a21))) || ((1 == a21 && (!(a7 == 1) && a16 == 4) && 1 <= a20) && 1 == a17)) || ((((!(a7 == 1) && 15 <= a8) && a17 <= 0) && 5 <= a16) && 1 == a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 28.4s OverallTime, 14 OverallIterations, 8 TraceHistogramMax, 15.1s AutomataDifference, 0.0s DeadEndRemovalTime, 5.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 644 SDtfs, 13314 SDslu, 1046 SDs, 0 SdLazy, 14382 SolverSat, 2663 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 4221 GetRequests, 3975 SyntacticMatches, 15 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1627 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9107occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.6s AbstIntTime, 10 AbstIntIterations, 4 AbstIntStrong, 0.997452321585461 AbsIntWeakeningRatio, 0.2 AbsIntAvgWeakeningVarsNumRemoved, 29.144303797468353 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 4422 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 618 PreInvPairs, 950 NumberOfFragments, 1288 HoareAnnotationTreeSize, 618 FomulaSimplifications, 380383 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 55898 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 4512 NumberOfCodeBlocks, 4512 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 6053 ConstructedInterpolants, 0 QuantifiedInterpolants, 3328841 SizeOfPredicates, 8 NumberOfNonLiveVariables, 4049 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 26 InterpolantComputations, 6 PerfectInterpolantSequences, 5196/5717 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...