./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/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 16d1e07abe3d8baa61b9a8d494202a7664f873bb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:59:04,972 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:59:04,973 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:59:04,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:59:04,980 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:59:04,980 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:59:04,981 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:59:04,982 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:59:04,983 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:59:04,984 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:59:04,985 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:59:04,985 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:59:04,985 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:59:04,986 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:59:04,987 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:59:04,987 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:59:04,988 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:59:04,989 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:59:04,991 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:59:04,992 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:59:04,992 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:59:04,993 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:59:04,995 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:59:04,995 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:59:04,995 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:59:04,996 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:59:04,996 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:59:04,997 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:59:04,997 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:59:04,998 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:59:04,998 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:59:04,999 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:59:04,999 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:59:04,999 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:59:05,000 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:59:05,000 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:59:05,000 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:59:05,010 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:59:05,010 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:59:05,011 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:59:05,011 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:59:05,011 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:59:05,011 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:59:05,011 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:59:05,011 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:59:05,011 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:59:05,012 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:59:05,012 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:59:05,012 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:59:05,012 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:59:05,012 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:59:05,013 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:59:05,013 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:59:05,013 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:59:05,013 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:59:05,013 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:59:05,013 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:59:05,013 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:59:05,014 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:59:05,014 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:59:05,014 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:59:05,014 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:59:05,014 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:59:05,014 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:59:05,014 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:59:05,015 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:59:05,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:59:05,015 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:59:05,015 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:59:05,015 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:59:05,015 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:59:05,015 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:59:05,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:59:05,015 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:59:05,016 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_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/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 -> 16d1e07abe3d8baa61b9a8d494202a7664f873bb [2018-11-18 17:59:05,037 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:59:05,044 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:59:05,046 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:59:05,047 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:59:05,048 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:59:05,048 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c [2018-11-18 17:59:05,084 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/data/b3d96980f/899066e3f0c54c9c89cfa4799f9de1cb/FLAGf36fc6d43 [2018-11-18 17:59:05,539 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:59:05,539 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/sv-benchmarks/c/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c [2018-11-18 17:59:05,549 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/data/b3d96980f/899066e3f0c54c9c89cfa4799f9de1cb/FLAGf36fc6d43 [2018-11-18 17:59:05,561 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/data/b3d96980f/899066e3f0c54c9c89cfa4799f9de1cb [2018-11-18 17:59:05,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:59:05,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:59:05,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:59:05,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:59:05,569 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:59:05,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:59:05" (1/1) ... [2018-11-18 17:59:05,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05, skipping insertion in model container [2018-11-18 17:59:05,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:59:05" (1/1) ... [2018-11-18 17:59:05,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:59:05,609 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:59:05,838 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:59:05,841 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:59:05,909 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:59:05,922 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:59:05,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05 WrapperNode [2018-11-18 17:59:05,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:59:05,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:59:05,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:59:05,923 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:59:05,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05" (1/1) ... [2018-11-18 17:59:06,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05" (1/1) ... [2018-11-18 17:59:06,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:59:06,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:59:06,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:59:06,014 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:59:06,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05" (1/1) ... [2018-11-18 17:59:06,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05" (1/1) ... [2018-11-18 17:59:06,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05" (1/1) ... [2018-11-18 17:59:06,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05" (1/1) ... [2018-11-18 17:59:06,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05" (1/1) ... [2018-11-18 17:59:06,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05" (1/1) ... [2018-11-18 17:59:06,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05" (1/1) ... [2018-11-18 17:59:06,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:59:06,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:59:06,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:59:06,067 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:59:06,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:59:06,113 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 17:59:06,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:59:06,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:59:06,114 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 17:59:06,114 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 17:59:06,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:59:06,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:59:06,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:59:06,114 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:59:06,867 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:59:06,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:59:06 BoogieIcfgContainer [2018-11-18 17:59:06,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:59:06,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:59:06,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:59:06,872 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:59:06,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:59:05" (1/3) ... [2018-11-18 17:59:06,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7444ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:59:06, skipping insertion in model container [2018-11-18 17:59:06,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:59:05" (2/3) ... [2018-11-18 17:59:06,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7444ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:59:06, skipping insertion in model container [2018-11-18 17:59:06,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:59:06" (3/3) ... [2018-11-18 17:59:06,875 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label08_true-unreach-call_false-termination.c [2018-11-18 17:59:06,883 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:59:06,890 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:59:06,903 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:59:06,931 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:59:06,931 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:59:06,931 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:59:06,931 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:59:06,931 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:59:06,931 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:59:06,932 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:59:06,932 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:59:06,950 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-11-18 17:59:06,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-11-18 17:59:06,958 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:06,959 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:59:06,961 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:06,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:06,965 INFO L82 PathProgramCache]: Analyzing trace with hash -682702232, now seen corresponding path program 1 times [2018-11-18 17:59:06,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:07,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:07,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:07,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:07,008 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:07,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:59:07,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:59:07,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:59:07,299 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:59:07,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:59:07,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:59:07,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:59:07,317 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-11-18 17:59:07,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:07,869 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-11-18 17:59:07,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:59:07,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2018-11-18 17:59:07,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:07,881 INFO L225 Difference]: With dead ends: 550 [2018-11-18 17:59:07,881 INFO L226 Difference]: Without dead ends: 340 [2018-11-18 17:59:07,885 INFO L604 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 [2018-11-18 17:59:07,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-11-18 17:59:07,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-11-18 17:59:07,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-11-18 17:59:07,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 553 transitions. [2018-11-18 17:59:07,932 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 553 transitions. Word has length 120 [2018-11-18 17:59:07,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:07,933 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 553 transitions. [2018-11-18 17:59:07,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:59:07,933 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 553 transitions. [2018-11-18 17:59:07,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-18 17:59:07,937 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:07,938 INFO L375 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] [2018-11-18 17:59:07,939 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:07,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:07,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1009333063, now seen corresponding path program 1 times [2018-11-18 17:59:07,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:07,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:07,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:07,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:07,941 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:08,051 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:59:08,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:59:08,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 17:59:08,051 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:59:08,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:59:08,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:59:08,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:59:08,054 INFO L87 Difference]: Start difference. First operand 340 states and 553 transitions. Second operand 6 states. [2018-11-18 17:59:08,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:08,760 INFO L93 Difference]: Finished difference Result 1075 states and 1835 transitions. [2018-11-18 17:59:08,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 17:59:08,761 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-11-18 17:59:08,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:08,765 INFO L225 Difference]: With dead ends: 1075 [2018-11-18 17:59:08,765 INFO L226 Difference]: Without dead ends: 741 [2018-11-18 17:59:08,768 INFO L604 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 [2018-11-18 17:59:08,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-11-18 17:59:08,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 724. [2018-11-18 17:59:08,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-11-18 17:59:08,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1145 transitions. [2018-11-18 17:59:08,799 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1145 transitions. Word has length 131 [2018-11-18 17:59:08,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:08,799 INFO L480 AbstractCegarLoop]: Abstraction has 724 states and 1145 transitions. [2018-11-18 17:59:08,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:59:08,799 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1145 transitions. [2018-11-18 17:59:08,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-18 17:59:08,803 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:08,803 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 17:59:08,803 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:08,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:08,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1121563035, now seen corresponding path program 1 times [2018-11-18 17:59:08,804 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:08,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:08,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:08,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:08,805 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:08,990 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:59:08,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:59:08,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:59:08,990 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:59:08,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 17:59:08,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:59:08,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:59:08,991 INFO L87 Difference]: Start difference. First operand 724 states and 1145 transitions. Second operand 5 states. [2018-11-18 17:59:09,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:09,444 INFO L93 Difference]: Finished difference Result 1578 states and 2533 transitions. [2018-11-18 17:59:09,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 17:59:09,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-11-18 17:59:09,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:09,447 INFO L225 Difference]: With dead ends: 1578 [2018-11-18 17:59:09,448 INFO L226 Difference]: Without dead ends: 721 [2018-11-18 17:59:09,450 INFO L604 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 [2018-11-18 17:59:09,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2018-11-18 17:59:09,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2018-11-18 17:59:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2018-11-18 17:59:09,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1069 transitions. [2018-11-18 17:59:09,470 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1069 transitions. Word has length 132 [2018-11-18 17:59:09,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:09,471 INFO L480 AbstractCegarLoop]: Abstraction has 721 states and 1069 transitions. [2018-11-18 17:59:09,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 17:59:09,471 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1069 transitions. [2018-11-18 17:59:09,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-11-18 17:59:09,473 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:09,473 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 17:59:09,473 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:09,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:09,474 INFO L82 PathProgramCache]: Analyzing trace with hash 915740739, now seen corresponding path program 1 times [2018-11-18 17:59:09,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:09,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:09,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:09,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:09,475 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:59:09,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:59:09,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:59:09,688 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:59:09,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 17:59:09,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:59:09,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:59:09,689 INFO L87 Difference]: Start difference. First operand 721 states and 1069 transitions. Second operand 5 states. [2018-11-18 17:59:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:10,082 INFO L93 Difference]: Finished difference Result 1572 states and 2365 transitions. [2018-11-18 17:59:10,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 17:59:10,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2018-11-18 17:59:10,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:10,085 INFO L225 Difference]: With dead ends: 1572 [2018-11-18 17:59:10,085 INFO L226 Difference]: Without dead ends: 720 [2018-11-18 17:59:10,087 INFO L604 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 [2018-11-18 17:59:10,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2018-11-18 17:59:10,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2018-11-18 17:59:10,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2018-11-18 17:59:10,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1062 transitions. [2018-11-18 17:59:10,100 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1062 transitions. Word has length 133 [2018-11-18 17:59:10,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:10,100 INFO L480 AbstractCegarLoop]: Abstraction has 720 states and 1062 transitions. [2018-11-18 17:59:10,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 17:59:10,100 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1062 transitions. [2018-11-18 17:59:10,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-18 17:59:10,101 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:10,101 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:59:10,102 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:10,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:10,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1024180077, now seen corresponding path program 1 times [2018-11-18 17:59:10,102 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:10,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:10,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:10,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:10,103 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:59:10,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:59:10,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:59:10,169 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:59:10,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:59:10,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:59:10,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:59:10,170 INFO L87 Difference]: Start difference. First operand 720 states and 1062 transitions. Second operand 3 states. [2018-11-18 17:59:10,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:10,466 INFO L93 Difference]: Finished difference Result 1882 states and 2820 transitions. [2018-11-18 17:59:10,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:59:10,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2018-11-18 17:59:10,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:10,471 INFO L225 Difference]: With dead ends: 1882 [2018-11-18 17:59:10,471 INFO L226 Difference]: Without dead ends: 1168 [2018-11-18 17:59:10,473 INFO L604 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 [2018-11-18 17:59:10,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2018-11-18 17:59:10,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1164. [2018-11-18 17:59:10,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1164 states. [2018-11-18 17:59:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1592 transitions. [2018-11-18 17:59:10,490 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1592 transitions. Word has length 136 [2018-11-18 17:59:10,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:10,491 INFO L480 AbstractCegarLoop]: Abstraction has 1164 states and 1592 transitions. [2018-11-18 17:59:10,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:59:10,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1592 transitions. [2018-11-18 17:59:10,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-11-18 17:59:10,494 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:10,494 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:59:10,494 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:10,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:10,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1336149662, now seen corresponding path program 1 times [2018-11-18 17:59:10,494 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:10,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:10,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:10,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:10,495 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:10,573 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:59:10,573 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:59:10,573 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:59:10,574 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2018-11-18 17:59:10,575 INFO L202 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], [90], [94], [97], [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], [597], [599], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 17:59:10,605 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:59:10,606 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:59:10,940 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:59:10,941 INFO L272 AbstractInterpreter]: Visited 121 different actions 121 times. Never merged. Never widened. Performed 1586 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1586 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 42 variables. [2018-11-18 17:59:10,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:10,964 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:59:11,347 INFO L227 lantSequenceWeakener]: Weakened 159 states. On average, predicates are now at 80.46% of their original sizes. [2018-11-18 17:59:11,347 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:59:11,398 INFO L415 sIntCurrentIteration]: We unified 167 AI predicates to 167 [2018-11-18 17:59:11,398 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:59:11,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:59:11,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-18 17:59:11,399 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:59:11,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:59:11,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:59:11,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:59:11,400 INFO L87 Difference]: Start difference. First operand 1164 states and 1592 transitions. Second operand 6 states. [2018-11-18 17:59:12,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:12,803 INFO L93 Difference]: Finished difference Result 2460 states and 3350 transitions. [2018-11-18 17:59:12,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:59:12,803 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2018-11-18 17:59:12,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:12,807 INFO L225 Difference]: With dead ends: 2460 [2018-11-18 17:59:12,807 INFO L226 Difference]: Without dead ends: 1302 [2018-11-18 17:59:12,810 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 168 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:59:12,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2018-11-18 17:59:12,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1300. [2018-11-18 17:59:12,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1300 states. [2018-11-18 17:59:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1734 transitions. [2018-11-18 17:59:12,836 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1734 transitions. Word has length 168 [2018-11-18 17:59:12,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:12,837 INFO L480 AbstractCegarLoop]: Abstraction has 1300 states and 1734 transitions. [2018-11-18 17:59:12,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:59:12,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1734 transitions. [2018-11-18 17:59:12,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-11-18 17:59:12,841 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:12,841 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1] [2018-11-18 17:59:12,842 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:12,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:12,842 INFO L82 PathProgramCache]: Analyzing trace with hash 213477505, now seen corresponding path program 1 times [2018-11-18 17:59:12,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:12,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:12,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:12,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:12,843 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:13,002 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 60 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 17:59:13,003 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:59:13,003 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:59:13,003 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2018-11-18 17:59:13,003 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [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], [597], [599], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 17:59:13,007 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:59:13,007 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:59:13,351 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:59:13,351 INFO L272 AbstractInterpreter]: Visited 125 different actions 244 times. Merged at 5 different actions 5 times. Never widened. Performed 3170 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3170 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 17:59:13,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:13,354 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:59:13,642 INFO L227 lantSequenceWeakener]: Weakened 174 states. On average, predicates are now at 81.88% of their original sizes. [2018-11-18 17:59:13,642 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:59:13,732 INFO L415 sIntCurrentIteration]: We unified 176 AI predicates to 176 [2018-11-18 17:59:13,732 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:59:13,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:59:13,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 17:59:13,733 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:59:13,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 17:59:13,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 17:59:13,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:59:13,734 INFO L87 Difference]: Start difference. First operand 1300 states and 1734 transitions. Second operand 10 states. [2018-11-18 17:59:18,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:18,149 INFO L93 Difference]: Finished difference Result 2599 states and 3521 transitions. [2018-11-18 17:59:18,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 17:59:18,149 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 177 [2018-11-18 17:59:18,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:18,154 INFO L225 Difference]: With dead ends: 2599 [2018-11-18 17:59:18,154 INFO L226 Difference]: Without dead ends: 1441 [2018-11-18 17:59:18,156 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 184 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-18 17:59:18,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2018-11-18 17:59:18,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1438. [2018-11-18 17:59:18,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-11-18 17:59:18,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 1882 transitions. [2018-11-18 17:59:18,185 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 1882 transitions. Word has length 177 [2018-11-18 17:59:18,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:18,185 INFO L480 AbstractCegarLoop]: Abstraction has 1438 states and 1882 transitions. [2018-11-18 17:59:18,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 17:59:18,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 1882 transitions. [2018-11-18 17:59:18,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-11-18 17:59:18,190 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:18,190 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:59:18,190 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:18,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:18,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1364345835, now seen corresponding path program 1 times [2018-11-18 17:59:18,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:18,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:18,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:18,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:18,192 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 100 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 17:59:18,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:59:18,326 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:59:18,326 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-11-18 17:59:18,326 INFO L202 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], [90], [94], [97], [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], [597], [599], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 17:59:18,329 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:59:18,329 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:59:18,514 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:59:18,514 INFO L272 AbstractInterpreter]: Visited 125 different actions 244 times. Merged at 5 different actions 5 times. Never widened. Performed 3233 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3233 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 17:59:18,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:18,518 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:59:18,761 INFO L227 lantSequenceWeakener]: Weakened 207 states. On average, predicates are now at 81.83% of their original sizes. [2018-11-18 17:59:18,761 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:59:18,816 INFO L415 sIntCurrentIteration]: We unified 209 AI predicates to 209 [2018-11-18 17:59:18,816 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:59:18,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:59:18,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 17:59:18,816 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:59:18,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 17:59:18,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 17:59:18,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:59:18,817 INFO L87 Difference]: Start difference. First operand 1438 states and 1882 transitions. Second operand 10 states. [2018-11-18 17:59:20,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:20,856 INFO L93 Difference]: Finished difference Result 2876 states and 3820 transitions. [2018-11-18 17:59:20,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 17:59:20,856 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 210 [2018-11-18 17:59:20,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:20,862 INFO L225 Difference]: With dead ends: 2876 [2018-11-18 17:59:20,863 INFO L226 Difference]: Without dead ends: 1718 [2018-11-18 17:59:20,866 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 218 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-18 17:59:20,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2018-11-18 17:59:20,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1715. [2018-11-18 17:59:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1715 states. [2018-11-18 17:59:20,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2181 transitions. [2018-11-18 17:59:20,900 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2181 transitions. Word has length 210 [2018-11-18 17:59:20,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:20,901 INFO L480 AbstractCegarLoop]: Abstraction has 1715 states and 2181 transitions. [2018-11-18 17:59:20,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 17:59:20,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2181 transitions. [2018-11-18 17:59:20,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-18 17:59:20,906 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:20,906 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:59:20,907 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:20,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:20,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1434391096, now seen corresponding path program 1 times [2018-11-18 17:59:20,907 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:20,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:20,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:20,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:20,908 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:21,059 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 98 proven. 52 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-18 17:59:21,059 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:59:21,059 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:59:21,059 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 220 with the following transitions: [2018-11-18 17:59:21,060 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [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], [597], [599], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 17:59:21,062 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:59:21,062 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:59:21,462 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:59:21,462 INFO L272 AbstractInterpreter]: Visited 127 different actions 508 times. Merged at 9 different actions 36 times. Never widened. Performed 7069 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7069 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-18 17:59:21,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:21,467 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:59:21,467 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:59:21,467 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:59:21,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:21,474 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:59:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:21,580 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:59:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-18 17:59:21,665 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:59:21,754 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 104 proven. 44 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 17:59:21,771 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:59:21,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-18 17:59:21,771 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:59:21,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 17:59:21,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 17:59:21,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-18 17:59:21,772 INFO L87 Difference]: Start difference. First operand 1715 states and 2181 transitions. Second operand 11 states. [2018-11-18 17:59:22,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:22,731 INFO L93 Difference]: Finished difference Result 3589 states and 4709 transitions. [2018-11-18 17:59:22,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 17:59:22,731 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 219 [2018-11-18 17:59:22,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:22,737 INFO L225 Difference]: With dead ends: 3589 [2018-11-18 17:59:22,738 INFO L226 Difference]: Without dead ends: 2293 [2018-11-18 17:59:22,741 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 439 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-11-18 17:59:22,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2293 states. [2018-11-18 17:59:22,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2293 to 2285. [2018-11-18 17:59:22,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2285 states. [2018-11-18 17:59:22,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 2863 transitions. [2018-11-18 17:59:22,785 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 2863 transitions. Word has length 219 [2018-11-18 17:59:22,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:22,785 INFO L480 AbstractCegarLoop]: Abstraction has 2285 states and 2863 transitions. [2018-11-18 17:59:22,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 17:59:22,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 2863 transitions. [2018-11-18 17:59:22,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-18 17:59:22,791 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:22,791 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:59:22,792 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:22,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:22,792 INFO L82 PathProgramCache]: Analyzing trace with hash 49211626, now seen corresponding path program 2 times [2018-11-18 17:59:22,792 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:22,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:22,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:22,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:22,793 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:22,918 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 98 proven. 54 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-18 17:59:22,918 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:59:22,918 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:59:22,918 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 17:59:22,919 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 17:59:22,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:59:22,919 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:59:22,925 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 17:59:22,926 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 17:59:22,976 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 17:59:22,976 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 17:59:22,982 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:59:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-18 17:59:23,024 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:59:23,075 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-18 17:59:23,092 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:59:23,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-11-18 17:59:23,092 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:59:23,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:59:23,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:59:23,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:59:23,093 INFO L87 Difference]: Start difference. First operand 2285 states and 2863 transitions. Second operand 3 states. [2018-11-18 17:59:23,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:23,362 INFO L93 Difference]: Finished difference Result 4563 states and 5972 transitions. [2018-11-18 17:59:23,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:59:23,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2018-11-18 17:59:23,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:23,369 INFO L225 Difference]: With dead ends: 4563 [2018-11-18 17:59:23,370 INFO L226 Difference]: Without dead ends: 2835 [2018-11-18 17:59:23,374 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:59:23,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2018-11-18 17:59:23,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 2699. [2018-11-18 17:59:23,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2699 states. [2018-11-18 17:59:23,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 3326 transitions. [2018-11-18 17:59:23,426 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 3326 transitions. Word has length 219 [2018-11-18 17:59:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:23,426 INFO L480 AbstractCegarLoop]: Abstraction has 2699 states and 3326 transitions. [2018-11-18 17:59:23,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:59:23,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 3326 transitions. [2018-11-18 17:59:23,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-11-18 17:59:23,433 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:23,433 INFO L375 BasicCegarLoop]: trace histogram [4, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 17:59:23,433 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:23,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:23,433 INFO L82 PathProgramCache]: Analyzing trace with hash 725737755, now seen corresponding path program 1 times [2018-11-18 17:59:23,434 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:23,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:23,434 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:59:23,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:23,434 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 107 proven. 49 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 17:59:23,555 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:59:23,555 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:59:23,556 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 231 with the following transitions: [2018-11-18 17:59:23,556 INFO L202 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], [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], [205], [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], [597], [599], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 17:59:23,558 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:59:23,558 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:59:23,874 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 17:59:23,875 INFO L272 AbstractInterpreter]: Visited 125 different actions 495 times. Merged at 8 different actions 28 times. Never widened. Performed 6738 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6738 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-18 17:59:23,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:23,878 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 17:59:24,107 INFO L227 lantSequenceWeakener]: Weakened 227 states. On average, predicates are now at 83.71% of their original sizes. [2018-11-18 17:59:24,107 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 17:59:24,174 INFO L415 sIntCurrentIteration]: We unified 229 AI predicates to 229 [2018-11-18 17:59:24,174 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 17:59:24,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:59:24,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2018-11-18 17:59:24,174 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:59:24,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 17:59:24,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 17:59:24,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 17:59:24,175 INFO L87 Difference]: Start difference. First operand 2699 states and 3326 transitions. Second operand 9 states. [2018-11-18 17:59:25,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:25,806 INFO L93 Difference]: Finished difference Result 5916 states and 7483 transitions. [2018-11-18 17:59:25,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 17:59:25,806 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2018-11-18 17:59:25,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:25,817 INFO L225 Difference]: With dead ends: 5916 [2018-11-18 17:59:25,818 INFO L226 Difference]: Without dead ends: 3774 [2018-11-18 17:59:25,823 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 238 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2018-11-18 17:59:25,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3774 states. [2018-11-18 17:59:25,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3774 to 3746. [2018-11-18 17:59:25,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3746 states. [2018-11-18 17:59:25,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3746 states to 3746 states and 4491 transitions. [2018-11-18 17:59:25,885 INFO L78 Accepts]: Start accepts. Automaton has 3746 states and 4491 transitions. Word has length 230 [2018-11-18 17:59:25,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:25,885 INFO L480 AbstractCegarLoop]: Abstraction has 3746 states and 4491 transitions. [2018-11-18 17:59:25,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 17:59:25,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3746 states and 4491 transitions. [2018-11-18 17:59:25,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-11-18 17:59:25,895 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:25,896 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2018-11-18 17:59:25,896 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:25,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:25,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1447497907, now seen corresponding path program 1 times [2018-11-18 17:59:25,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:25,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:25,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:25,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:25,897 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 148 proven. 84 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-18 17:59:26,040 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:59:26,040 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:59:26,040 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 268 with the following transitions: [2018-11-18 17:59:26,041 INFO L202 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], [205], [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], [597], [599], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 17:59:26,043 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:59:26,043 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:59:26,509 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:59:26,509 INFO L272 AbstractInterpreter]: Visited 128 different actions 517 times. Merged at 10 different actions 41 times. Widened at 1 different actions 1 times. Performed 7142 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7142 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 4 different actions. Largest state had 42 variables. [2018-11-18 17:59:26,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:26,514 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:59:26,514 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:59:26,514 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:59:26,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:26,520 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:59:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:26,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:59:26,676 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 155 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2018-11-18 17:59:26,677 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:59:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 154 proven. 20 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-18 17:59:26,809 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:59:26,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-11-18 17:59:26,810 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:59:26,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 17:59:26,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 17:59:26,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-11-18 17:59:26,811 INFO L87 Difference]: Start difference. First operand 3746 states and 4491 transitions. Second operand 12 states. [2018-11-18 17:59:29,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:29,001 INFO L93 Difference]: Finished difference Result 13527 states and 17563 transitions. [2018-11-18 17:59:29,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-11-18 17:59:29,001 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 267 [2018-11-18 17:59:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:29,026 INFO L225 Difference]: With dead ends: 13527 [2018-11-18 17:59:29,026 INFO L226 Difference]: Without dead ends: 10061 [2018-11-18 17:59:29,035 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 565 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=479, Invalid=1873, Unknown=0, NotChecked=0, Total=2352 [2018-11-18 17:59:29,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10061 states. [2018-11-18 17:59:29,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10061 to 9630. [2018-11-18 17:59:29,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9630 states. [2018-11-18 17:59:29,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9630 states to 9630 states and 11852 transitions. [2018-11-18 17:59:29,255 INFO L78 Accepts]: Start accepts. Automaton has 9630 states and 11852 transitions. Word has length 267 [2018-11-18 17:59:29,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:29,256 INFO L480 AbstractCegarLoop]: Abstraction has 9630 states and 11852 transitions. [2018-11-18 17:59:29,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 17:59:29,256 INFO L276 IsEmpty]: Start isEmpty. Operand 9630 states and 11852 transitions. [2018-11-18 17:59:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-11-18 17:59:29,279 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:59:29,280 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2018-11-18 17:59:29,280 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:59:29,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:29,280 INFO L82 PathProgramCache]: Analyzing trace with hash -773602765, now seen corresponding path program 1 times [2018-11-18 17:59:29,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:59:29,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:29,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:29,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:59:29,281 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:59:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 175 proven. 101 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-11-18 17:59:29,426 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:59:29,426 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:59:29,426 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 277 with the following transitions: [2018-11-18 17:59:29,426 INFO L202 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], [173], [174], [178], [182], [186], [190], [194], [198], [202], [205], [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], [597], [599], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 17:59:29,427 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:59:29,428 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:59:29,793 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:59:29,794 INFO L272 AbstractInterpreter]: Visited 128 different actions 638 times. Merged at 10 different actions 46 times. Widened at 1 different actions 1 times. Performed 8765 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8765 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 11 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-18 17:59:29,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:59:29,798 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:59:29,798 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:59:29,798 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:59:29,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:59:29,804 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:59:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:59:29,870 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:59:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 245 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-18 17:59:29,919 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:59:29,995 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 245 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-18 17:59:30,010 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:59:30,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-18 17:59:30,010 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:59:30,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 17:59:30,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 17:59:30,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-18 17:59:30,011 INFO L87 Difference]: Start difference. First operand 9630 states and 11852 transitions. Second operand 9 states. [2018-11-18 17:59:31,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:59:31,117 INFO L93 Difference]: Finished difference Result 22046 states and 29879 transitions. [2018-11-18 17:59:31,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 17:59:31,118 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 276 [2018-11-18 17:59:31,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:59:31,119 INFO L225 Difference]: With dead ends: 22046 [2018-11-18 17:59:31,119 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 17:59:31,167 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2018-11-18 17:59:31,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 17:59:31,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 17:59:31,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 17:59:31,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 17:59:31,168 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 276 [2018-11-18 17:59:31,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:59:31,168 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:59:31,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 17:59:31,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:59:31,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:59:31,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 17:59:31,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,556 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,684 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,795 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,796 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,797 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,802 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,804 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,809 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,810 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,819 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,824 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,842 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,850 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,852 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,855 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,869 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,881 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,885 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,904 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,910 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,912 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,918 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,932 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,943 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,962 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:31,994 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,003 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,032 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,059 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,065 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,079 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,107 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,116 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,203 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,307 WARN L180 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 446 DAG size of output: 147 [2018-11-18 17:59:32,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,494 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,496 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,529 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,533 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,543 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 17:59:32,650 WARN L180 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 106 [2018-11-18 17:59:33,685 WARN L180 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 100 [2018-11-18 17:59:34,044 WARN L180 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 73 [2018-11-18 17:59:34,266 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 71 [2018-11-18 17:59:34,267 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L421 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(~a16~0)| ~a16~0)) [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-11-18 17:59:34,268 INFO L425 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,269 INFO L425 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-11-18 17:59:34,270 INFO L425 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,271 INFO L425 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-11-18 17:59:34,272 INFO L425 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse22 (= 1 |old(~a17~0)|)) (.cse18 (= 13 |old(~a8~0)|)) (.cse16 (= 1 |old(~a21~0)|)) (.cse31 (= 1 |old(~a7~0)|)) (.cse33 (not (= ~a8~0 0))) (.cse34 (= ~a21~0 1)) (.cse35 (= ~a7~0 |old(~a7~0)|)) (.cse24 (= 1 ~a7~0)) (.cse32 (= |old(~a20~0)| ~a20~0)) (.cse36 (= ~a17~0 |old(~a17~0)|)) (.cse27 (= |old(~a16~0)| ~a16~0)) (.cse37 (not (= ~a8~0 13)))) (let ((.cse14 (not (= 5 |old(~a16~0)|))) (.cse21 (and .cse24 .cse32 .cse36 .cse27 .cse37)) (.cse10 (not (= |old(~a20~0)| 1))) (.cse4 (< 0 |old(~a17~0)|)) (.cse19 (and .cse32 .cse33 .cse27 .cse34 .cse37 .cse35 .cse36)) (.cse20 (< 0 |old(~a20~0)|)) (.cse15 (and (not .cse34) .cse24 .cse32 .cse36 .cse27)) (.cse17 (not .cse31)) (.cse6 (= ~a8~0 15)) (.cse0 (= 6 |old(~a16~0)|)) (.cse8 (not (= 15 |old(~a8~0)|))) (.cse1 (not (= 0 |old(~a7~0)|))) (.cse12 (and .cse32 .cse33 .cse27 .cse34 .cse35 .cse36)) (.cse9 (= 0 |old(~a16~0)|)) (.cse5 (= |calculate_output_#in~input| 0)) (.cse11 (= 0 |old(~a8~0)|)) (.cse2 (not .cse16)) (.cse7 (not (= 1 |old(~a20~0)|))) (.cse23 (not (= 4 |old(~a16~0)|))) (.cse3 (not (= 8 ~a12~0))) (.cse25 (= 1 ~a20~0)) (.cse26 (= 13 ~a8~0)) (.cse28 (= 1 ~a21~0)) (.cse29 (= 1 ~a17~0)) (.cse30 (not .cse18)) (.cse13 (not .cse22))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (or .cse0 .cse1 .cse2 .cse10 .cse9 .cse3 .cse4 .cse5 .cse11 .cse12) (or .cse1 .cse2 .cse6 .cse3 .cse5 .cse13 .cse7 .cse8 .cse14) (or .cse6 .cse5 (or .cse1 .cse2 .cse8 (not (= 0 |old(~a20~0)|)) .cse14 .cse3 .cse13)) (or .cse15 (or .cse7 .cse16 .cse3) .cse17) (or .cse1 .cse2 .cse18 .cse9 .cse3 .cse19 .cse5 .cse11 .cse20) (or .cse0 .cse18 .cse21 .cse3 .cse17 .cse4 .cse20) (or .cse0 .cse21 .cse10 .cse18 .cse3 .cse17 .cse4) (or .cse0 .cse1 .cse2 .cse12 .cse9 .cse3 .cse22 .cse5 .cse11 .cse20) (or .cse1 .cse2 .cse7 .cse19 .cse18 .cse9 .cse3 .cse5 .cse11) (or .cse0 .cse16 .cse3 .cse17 .cse20 .cse15) (or .cse2 .cse7 .cse23 (and .cse24 .cse25 .cse26 .cse27 .cse28 .cse29) .cse3 .cse17 .cse30 .cse13) (or .cse5 .cse6 (or (not .cse0) .cse1 .cse2 .cse7 .cse8 (not (= 0 |old(~a17~0)|)) .cse3)) (or .cse1 .cse2 .cse7 .cse12 .cse9 .cse3 .cse5 .cse11 .cse13) (or .cse2 .cse31 .cse7 .cse23 .cse3 (and (not (= ~a7~0 1)) .cse25 .cse26 .cse27 .cse28 .cse29) .cse30 .cse13)))) [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-11-18 17:59:34,273 INFO L425 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-11-18 17:59:34,274 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-11-18 17:59:34,275 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-11-18 17:59:34,276 INFO L425 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-11-18 17:59:34,277 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-11-18 17:59:34,277 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-11-18 17:59:34,277 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-11-18 17:59:34,277 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:59:34,277 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= ~a17~0 1) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5)) [2018-11-18 17:59:34,277 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:59:34,277 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:59:34,277 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a8~0 15) (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 1) (= ~a16~0 5)) (not (= 5 |old(~a16~0)|)) (not (= 8 ~a12~0)) (not (= 1 |old(~a17~0)|))) [2018-11-18 17:59:34,277 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-11-18 17:59:34,277 INFO L421 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse9 (= ~a21~0 1))) (let ((.cse1 (not .cse9)) (.cse5 (= ~a7~0 0)) (.cse6 (not (= ~a16~0 0))) (.cse7 (not (= main_~input~0 0))) (.cse8 (not (= ~a8~0 0))) (.cse4 (<= ~a20~0 0)) (.cse2 (= 1 ~a7~0)) (.cse0 (= 1 ~a20~0)) (.cse3 (not (= ~a16~0 6))) (.cse11 (<= ~a17~0 0)) (.cse10 (not (= ~a8~0 13)))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 (= 13 ~a8~0) (= 4 ~a16~0) (= 1 ~a21~0) (= 1 ~a17~0)) (not (= 8 ~a12~0)) (not (= 1 |old(~a20~0)|)) (and .cse1 .cse2 .cse3 .cse4) (not (= 5 |old(~a16~0)|)) (and .cse5 .cse6 .cse7 .cse0 (= ~a17~0 |old(~a17~0)|) .cse8 .cse9) (and .cse5 .cse6 .cse7 .cse8 .cse9 .cse4 .cse10) (not (= 0 |old(~a7~0)|)) (and .cse5 .cse6 .cse7 .cse0 .cse8 .cse3 .cse11 .cse9) (not (= 1 |old(~a17~0)|)) (and .cse5 .cse6 .cse7 .cse0 .cse8 .cse9 .cse10) (not (= 15 |old(~a8~0)|)) (and .cse2 .cse3 .cse11 .cse10 .cse4) (and .cse1 .cse2 .cse0) (and .cse5 .cse6 .cse7 .cse8 .cse3 .cse9 (not (= ~a17~0 1)) .cse4) (and .cse2 .cse0 .cse3 .cse11 .cse10)))) [2018-11-18 17:59:34,278 INFO L425 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-11-18 17:59:34,278 INFO L425 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-11-18 17:59:34,278 INFO L425 ceAbstractionStarter]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2018-11-18 17:59:34,278 INFO L421 ceAbstractionStarter]: At program point L583-3(lines 583 593) the Hoare annotation is: (let ((.cse3 (= ~a21~0 1))) (let ((.cse6 (not .cse3)) (.cse9 (not (= main_~input~0 0))) (.cse8 (= 1 ~a20~0)) (.cse7 (= 1 ~a7~0)) (.cse10 (not (= ~a16~0 6))) (.cse11 (<= ~a17~0 0)) (.cse5 (not (= ~a8~0 13))) (.cse4 (<= ~a20~0 0)) (.cse0 (= ~a7~0 0)) (.cse1 (not (= ~a16~0 0))) (.cse12 (= |old(~a20~0)| ~a20~0)) (.cse2 (not (= ~a8~0 0)))) (or (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse9 .cse2 .cse10 .cse3 (not (= ~a17~0 1)) .cse4) (and .cse7 .cse8 .cse10 .cse11 .cse5) (and .cse8 (= 13 ~a8~0) (= 4 ~a16~0) (= 1 ~a21~0) (= 1 ~a17~0)) (and .cse6 .cse7 .cse10 .cse4) (and .cse0 .cse1 .cse12 .cse2 .cse10 .cse3 .cse5) (and .cse0 .cse1 .cse12 .cse2 .cse10 .cse11 .cse3) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse0 .cse1 .cse9 .cse8 .cse2 .cse3 .cse5) (not (= 15 |old(~a8~0)|)) (and .cse7 .cse10 .cse11 .cse5 .cse4) (and .cse0 .cse1 .cse12 (= ~a17~0 |old(~a17~0)|) .cse2 .cse3)))) [2018-11-18 17:59:34,278 INFO L425 ceAbstractionStarter]: For program point L583-4(lines 577 594) no Hoare annotation was computed. [2018-11-18 17:59:34,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:59:34 BoogieIcfgContainer [2018-11-18 17:59:34,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:59:34,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:59:34,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:59:34,290 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:59:34,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:59:06" (3/4) ... [2018-11-18 17:59:34,293 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:59:34,298 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 17:59:34,299 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 17:59:34,299 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 17:59:34,308 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 17:59:34,309 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 17:59:34,333 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((!(1 == \old(a21)) || !(8 == a12)) || !(1 == \old(a20))) || !(5 == \old(a16))) || (((((a7 == 0 && !(a16 == 0)) && !(a8 == 0)) && a21 == 1) && a20 <= 0) && !(a8 == 13))) || ((!(a21 == 1) && 1 == a7) && 1 == a20)) || (((((((a7 == 0 && !(a16 == 0)) && !(input == 0)) && !(a8 == 0)) && !(a16 == 6)) && a21 == 1) && !(a17 == 1)) && a20 <= 0)) || ((((1 == a7 && 1 == a20) && !(a16 == 6)) && a17 <= 0) && !(a8 == 13))) || ((((1 == a20 && 13 == a8) && 4 == a16) && 1 == a21) && 1 == a17)) || (((!(a21 == 1) && 1 == a7) && !(a16 == 6)) && a20 <= 0)) || ((((((a7 == 0 && !(a16 == 0)) && \old(a20) == a20) && !(a8 == 0)) && !(a16 == 6)) && a21 == 1) && !(a8 == 13))) || ((((((a7 == 0 && !(a16 == 0)) && \old(a20) == a20) && !(a8 == 0)) && !(a16 == 6)) && a17 <= 0) && a21 == 1)) || !(0 == \old(a7))) || !(1 == \old(a17))) || ((((((a7 == 0 && !(a16 == 0)) && !(input == 0)) && 1 == a20) && !(a8 == 0)) && a21 == 1) && !(a8 == 13))) || !(15 == \old(a8))) || ((((1 == a7 && !(a16 == 6)) && a17 <= 0) && !(a8 == 13)) && a20 <= 0)) || (((((a7 == 0 && !(a16 == 0)) && \old(a20) == a20) && a17 == \old(a17)) && !(a8 == 0)) && a21 == 1) [2018-11-18 17:59:34,394 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ef85c4dc-42f9-4a2a-89fa-12eb7ab6bc99/bin-2019/utaipan/witness.graphml [2018-11-18 17:59:34,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:59:34,395 INFO L168 Benchmark]: Toolchain (without parser) took 28830.28 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.3 GB). Free memory was 951.1 MB in the beginning and 982.2 MB in the end (delta: -31.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. [2018-11-18 17:59:34,395 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:59:34,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.87 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 918.8 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:59:34,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 918.8 MB in the beginning and 1.1 GB in the end (delta: -215.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:59:34,396 INFO L168 Benchmark]: Boogie Preprocessor took 51.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:59:34,396 INFO L168 Benchmark]: RCFGBuilder took 801.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:59:34,396 INFO L168 Benchmark]: TraceAbstraction took 27421.34 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 15.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-18 17:59:34,397 INFO L168 Benchmark]: Witness Printer took 104.26 ms. Allocated memory is still 2.3 GB. Free memory was 1.0 GB in the beginning and 982.2 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:59:34,398 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 356.87 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 918.8 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 91.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 918.8 MB in the beginning and 1.1 GB in the end (delta: -215.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 801.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27421.34 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 15.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. * Witness Printer took 104.26 ms. Allocated memory is still 2.3 GB. Free memory was 1.0 GB in the beginning and 982.2 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 515]: 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: ((((((((((((((((!(1 == \old(a21)) || !(8 == a12)) || !(1 == \old(a20))) || !(5 == \old(a16))) || (((((a7 == 0 && !(a16 == 0)) && !(a8 == 0)) && a21 == 1) && a20 <= 0) && !(a8 == 13))) || ((!(a21 == 1) && 1 == a7) && 1 == a20)) || (((((((a7 == 0 && !(a16 == 0)) && !(input == 0)) && !(a8 == 0)) && !(a16 == 6)) && a21 == 1) && !(a17 == 1)) && a20 <= 0)) || ((((1 == a7 && 1 == a20) && !(a16 == 6)) && a17 <= 0) && !(a8 == 13))) || ((((1 == a20 && 13 == a8) && 4 == a16) && 1 == a21) && 1 == a17)) || (((!(a21 == 1) && 1 == a7) && !(a16 == 6)) && a20 <= 0)) || ((((((a7 == 0 && !(a16 == 0)) && \old(a20) == a20) && !(a8 == 0)) && !(a16 == 6)) && a21 == 1) && !(a8 == 13))) || ((((((a7 == 0 && !(a16 == 0)) && \old(a20) == a20) && !(a8 == 0)) && !(a16 == 6)) && a17 <= 0) && a21 == 1)) || !(0 == \old(a7))) || !(1 == \old(a17))) || ((((((a7 == 0 && !(a16 == 0)) && !(input == 0)) && 1 == a20) && !(a8 == 0)) && a21 == 1) && !(a8 == 13))) || !(15 == \old(a8))) || ((((1 == a7 && !(a16 == 6)) && a17 <= 0) && !(a8 == 13)) && a20 <= 0)) || (((((a7 == 0 && !(a16 == 0)) && \old(a20) == a20) && a17 == \old(a17)) && !(a8 == 0)) && a21 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. SAFE Result, 27.3s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 16.6s AutomataDifference, 0.0s DeadEndRemovalTime, 3.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1700 SDtfs, 11176 SDslu, 2299 SDs, 0 SdLazy, 13470 SolverSat, 2460 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 2942 GetRequests, 2770 SyntacticMatches, 12 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9630occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.5s AbstIntTime, 7 AbstIntIterations, 4 AbstIntStrong, 0.9974095513451683 AbsIntWeakeningRatio, 0.2023047375160051 AbsIntAvgWeakeningVarsNumRemoved, 28.843790012804096 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 632 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 519 PreInvPairs, 1118 NumberOfFragments, 1236 HoareAnnotationTreeSize, 519 FomulaSimplifications, 46294 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10529 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 3399 NumberOfCodeBlocks, 3332 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4359 ConstructedInterpolants, 0 QuantifiedInterpolants, 2487557 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2413 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 21 InterpolantComputations, 7 PerfectInterpolantSequences, 2964/3408 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...