./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/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 5f1f3e9c958502587d73771213325403adeeeeae ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 15:45:36,967 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:45:36,968 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:45:36,977 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:45:36,977 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:45:36,978 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:45:36,979 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:45:36,980 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:45:36,981 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:45:36,982 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:45:36,983 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:45:36,983 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:45:36,984 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:45:36,984 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:45:36,985 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:45:36,986 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:45:36,986 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:45:36,988 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:45:36,989 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:45:36,991 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:45:36,991 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:45:36,992 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:45:36,994 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:45:36,994 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:45:36,994 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:45:36,995 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:45:36,996 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:45:36,996 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:45:36,997 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:45:36,998 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:45:36,998 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:45:36,999 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:45:36,999 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:45:36,999 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:45:37,000 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:45:37,000 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:45:37,000 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 15:45:37,011 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:45:37,011 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:45:37,012 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 15:45:37,012 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 15:45:37,012 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 15:45:37,013 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 15:45:37,013 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 15:45:37,013 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 15:45:37,013 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 15:45:37,013 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 15:45:37,013 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 15:45:37,013 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 15:45:37,013 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 15:45:37,014 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:45:37,014 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:45:37,014 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 15:45:37,014 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:45:37,015 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:45:37,015 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 15:45:37,015 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 15:45:37,015 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 15:45:37,015 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:45:37,015 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:45:37,015 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 15:45:37,016 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:45:37,016 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:45:37,016 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 15:45:37,016 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 15:45:37,016 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:45:37,016 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:45:37,016 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 15:45:37,016 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 15:45:37,016 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 15:45:37,016 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 15:45:37,016 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 15:45:37,017 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 15:45:37,017 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_bfa2b97f-328b-44d3-892f-700665f9c284/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 -> 5f1f3e9c958502587d73771213325403adeeeeae [2018-12-09 15:45:37,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:45:37,041 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:45:37,043 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:45:37,043 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:45:37,044 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:45:37,044 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c [2018-12-09 15:45:37,079 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/data/692b2ee6c/b5677c26852948a780b2aec11b8ffe3f/FLAG69dc45f3f [2018-12-09 15:45:37,449 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:45:37,450 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c [2018-12-09 15:45:37,456 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/data/692b2ee6c/b5677c26852948a780b2aec11b8ffe3f/FLAG69dc45f3f [2018-12-09 15:45:37,823 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/data/692b2ee6c/b5677c26852948a780b2aec11b8ffe3f [2018-12-09 15:45:37,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:45:37,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:45:37,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:45:37,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:45:37,829 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:45:37,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:45:37" (1/1) ... [2018-12-09 15:45:37,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f5a6cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:37, skipping insertion in model container [2018-12-09 15:45:37,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:45:37" (1/1) ... [2018-12-09 15:45:37,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:45:37,861 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:45:38,038 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:45:38,040 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:45:38,088 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:45:38,136 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:45:38,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:38 WrapperNode [2018-12-09 15:45:38,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:45:38,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:45:38,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:45:38,138 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:45:38,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:38" (1/1) ... [2018-12-09 15:45:38,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:38" (1/1) ... [2018-12-09 15:45:38,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:45:38,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:45:38,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:45:38,164 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:45:38,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:38" (1/1) ... [2018-12-09 15:45:38,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:38" (1/1) ... [2018-12-09 15:45:38,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:38" (1/1) ... [2018-12-09 15:45:38,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:38" (1/1) ... [2018-12-09 15:45:38,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:38" (1/1) ... [2018-12-09 15:45:38,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:38" (1/1) ... [2018-12-09 15:45:38,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:38" (1/1) ... [2018-12-09 15:45:38,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:45:38,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:45:38,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:45:38,215 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:45:38,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:45:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 15:45:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 15:45:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 15:45:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 15:45:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:45:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:45:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 15:45:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 15:45:38,824 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:45:38,824 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 15:45:38,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:45:38 BoogieIcfgContainer [2018-12-09 15:45:38,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:45:38,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 15:45:38,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 15:45:38,827 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 15:45:38,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:45:37" (1/3) ... [2018-12-09 15:45:38,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbc09f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:45:38, skipping insertion in model container [2018-12-09 15:45:38,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:45:38" (2/3) ... [2018-12-09 15:45:38,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbc09f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:45:38, skipping insertion in model container [2018-12-09 15:45:38,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:45:38" (3/3) ... [2018-12-09 15:45:38,829 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label59_true-unreach-call.c [2018-12-09 15:45:38,835 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 15:45:38,841 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 15:45:38,851 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 15:45:38,874 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 15:45:38,874 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 15:45:38,874 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 15:45:38,874 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:45:38,874 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:45:38,875 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 15:45:38,875 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:45:38,875 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 15:45:38,888 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-12-09 15:45:38,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-12-09 15:45:38,893 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:45:38,894 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:45:38,895 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:45:38,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:45:38,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1400340266, now seen corresponding path program 1 times [2018-12-09 15:45:38,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:45:38,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:38,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:45:38,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:38,929 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:45:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:45:39,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:45:39,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:45:39,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 15:45:39,085 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:45:39,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 15:45:39,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 15:45:39,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:45:39,098 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2018-12-09 15:45:39,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:45:39,789 INFO L93 Difference]: Finished difference Result 733 states and 1294 transitions. [2018-12-09 15:45:39,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 15:45:39,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2018-12-09 15:45:39,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:45:39,802 INFO L225 Difference]: With dead ends: 733 [2018-12-09 15:45:39,803 INFO L226 Difference]: Without dead ends: 437 [2018-12-09 15:45:39,807 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:45:39,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2018-12-09 15:45:39,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 294. [2018-12-09 15:45:39,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2018-12-09 15:45:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2018-12-09 15:45:39,854 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 71 [2018-12-09 15:45:39,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:45:39,854 INFO L480 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2018-12-09 15:45:39,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 15:45:39,854 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2018-12-09 15:45:39,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-12-09 15:45:39,857 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:45:39,857 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 15:45:39,858 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:45:39,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:45:39,858 INFO L82 PathProgramCache]: Analyzing trace with hash 41629170, now seen corresponding path program 1 times [2018-12-09 15:45:39,858 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:45:39,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:39,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:45:39,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:39,859 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:45:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:45:40,013 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 57 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:45:40,013 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:45:40,013 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:45:40,014 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-12-09 15:45:40,015 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [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], [477], [479], [482], [490], [495], [498], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 15:45:40,042 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:45:40,042 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:45:40,343 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:45:40,344 INFO L272 AbstractInterpreter]: Visited 78 different actions 220 times. Merged at 4 different actions 7 times. Never widened. Performed 1961 root evaluator evaluations with a maximum evaluation depth of 7. Performed 1961 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-09 15:45:40,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:45:40,350 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:45:40,350 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:45:40,350 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:45:40,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:45:40,357 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:45:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:45:40,389 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:45:40,438 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:45:40,438 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:45:40,471 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:45:40,496 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 15:45:40,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2018-12-09 15:45:40,496 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:45:40,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 15:45:40,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 15:45:40,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-09 15:45:40,497 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2018-12-09 15:45:40,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:45:40,800 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2018-12-09 15:45:40,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 15:45:40,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2018-12-09 15:45:40,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:45:40,804 INFO L225 Difference]: With dead ends: 868 [2018-12-09 15:45:40,804 INFO L226 Difference]: Without dead ends: 580 [2018-12-09 15:45:40,805 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 282 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-09 15:45:40,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2018-12-09 15:45:40,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2018-12-09 15:45:40,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2018-12-09 15:45:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 802 transitions. [2018-12-09 15:45:40,828 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 802 transitions. Word has length 141 [2018-12-09 15:45:40,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:45:40,829 INFO L480 AbstractCegarLoop]: Abstraction has 580 states and 802 transitions. [2018-12-09 15:45:40,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 15:45:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 802 transitions. [2018-12-09 15:45:40,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-12-09 15:45:40,832 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:45:40,832 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 15:45:40,832 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:45:40,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:45:40,833 INFO L82 PathProgramCache]: Analyzing trace with hash -395920931, now seen corresponding path program 1 times [2018-12-09 15:45:40,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:45:40,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:40,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:45:40,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:40,834 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:45:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:45:40,924 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:45:40,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:45:40,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 15:45:40,924 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:45:40,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 15:45:40,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 15:45:40,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 15:45:40,925 INFO L87 Difference]: Start difference. First operand 580 states and 802 transitions. Second operand 6 states. [2018-12-09 15:45:41,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:45:41,428 INFO L93 Difference]: Finished difference Result 1480 states and 2162 transitions. [2018-12-09 15:45:41,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:45:41,429 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2018-12-09 15:45:41,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:45:41,434 INFO L225 Difference]: With dead ends: 1480 [2018-12-09 15:45:41,434 INFO L226 Difference]: Without dead ends: 906 [2018-12-09 15:45:41,435 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-09 15:45:41,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2018-12-09 15:45:41,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 886. [2018-12-09 15:45:41,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-12-09 15:45:41,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1236 transitions. [2018-12-09 15:45:41,463 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1236 transitions. Word has length 152 [2018-12-09 15:45:41,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:45:41,464 INFO L480 AbstractCegarLoop]: Abstraction has 886 states and 1236 transitions. [2018-12-09 15:45:41,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 15:45:41,464 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1236 transitions. [2018-12-09 15:45:41,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-12-09 15:45:41,468 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:45:41,468 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 15:45:41,468 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:45:41,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:45:41,469 INFO L82 PathProgramCache]: Analyzing trace with hash -303103034, now seen corresponding path program 1 times [2018-12-09 15:45:41,469 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:45:41,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:41,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:45:41,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:41,470 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:45:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:45:41,549 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:45:41,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:45:41,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 15:45:41,550 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:45:41,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 15:45:41,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 15:45:41,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:45:41,551 INFO L87 Difference]: Start difference. First operand 886 states and 1236 transitions. Second operand 4 states. [2018-12-09 15:45:42,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:45:42,095 INFO L93 Difference]: Finished difference Result 1766 states and 2472 transitions. [2018-12-09 15:45:42,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 15:45:42,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2018-12-09 15:45:42,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:45:42,098 INFO L225 Difference]: With dead ends: 1766 [2018-12-09 15:45:42,098 INFO L226 Difference]: Without dead ends: 886 [2018-12-09 15:45:42,099 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:45:42,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2018-12-09 15:45:42,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 737. [2018-12-09 15:45:42,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2018-12-09 15:45:42,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 950 transitions. [2018-12-09 15:45:42,111 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 950 transitions. Word has length 199 [2018-12-09 15:45:42,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:45:42,111 INFO L480 AbstractCegarLoop]: Abstraction has 737 states and 950 transitions. [2018-12-09 15:45:42,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 15:45:42,111 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 950 transitions. [2018-12-09 15:45:42,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-12-09 15:45:42,113 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:45:42,113 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 15:45:42,113 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:45:42,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:45:42,113 INFO L82 PathProgramCache]: Analyzing trace with hash 421403873, now seen corresponding path program 1 times [2018-12-09 15:45:42,114 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:45:42,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:42,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:45:42,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:42,114 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:45:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:45:42,196 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:45:42,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:45:42,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 15:45:42,197 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:45:42,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 15:45:42,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 15:45:42,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 15:45:42,197 INFO L87 Difference]: Start difference. First operand 737 states and 950 transitions. Second operand 6 states. [2018-12-09 15:45:42,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:45:42,723 INFO L93 Difference]: Finished difference Result 1947 states and 2629 transitions. [2018-12-09 15:45:42,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:45:42,723 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 202 [2018-12-09 15:45:42,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:45:42,727 INFO L225 Difference]: With dead ends: 1947 [2018-12-09 15:45:42,727 INFO L226 Difference]: Without dead ends: 1216 [2018-12-09 15:45:42,729 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-09 15:45:42,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2018-12-09 15:45:42,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1190. [2018-12-09 15:45:42,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1190 states. [2018-12-09 15:45:42,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1534 transitions. [2018-12-09 15:45:42,749 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1534 transitions. Word has length 202 [2018-12-09 15:45:42,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:45:42,750 INFO L480 AbstractCegarLoop]: Abstraction has 1190 states and 1534 transitions. [2018-12-09 15:45:42,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 15:45:42,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1534 transitions. [2018-12-09 15:45:42,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-12-09 15:45:42,752 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:45:42,752 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:45:42,752 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:45:42,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:45:42,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1534813554, now seen corresponding path program 1 times [2018-12-09 15:45:42,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:45:42,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:42,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:45:42,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:42,754 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:45:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:45:42,836 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 128 proven. 65 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 15:45:42,837 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:45:42,837 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:45:42,837 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-12-09 15:45:42,837 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [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], [477], [479], [482], [490], [494], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 15:45:42,840 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:45:42,841 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:45:42,911 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 15:45:42,911 INFO L272 AbstractInterpreter]: Visited 86 different actions 86 times. Never merged. Never widened. Performed 767 root evaluator evaluations with a maximum evaluation depth of 8. Performed 767 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Never found a fixpoint. Largest state had 24 variables. [2018-12-09 15:45:42,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:45:42,912 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 15:45:43,133 INFO L227 lantSequenceWeakener]: Weakened 212 states. On average, predicates are now at 73.78% of their original sizes. [2018-12-09 15:45:43,133 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 15:45:43,157 INFO L418 sIntCurrentIteration]: We unified 220 AI predicates to 220 [2018-12-09 15:45:43,157 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 15:45:43,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 15:45:43,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-09 15:45:43,158 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:45:43,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 15:45:43,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 15:45:43,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 15:45:43,158 INFO L87 Difference]: Start difference. First operand 1190 states and 1534 transitions. Second operand 6 states. [2018-12-09 15:45:46,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:45:46,245 INFO L93 Difference]: Finished difference Result 2518 states and 3256 transitions. [2018-12-09 15:45:46,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 15:45:46,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2018-12-09 15:45:46,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:45:46,249 INFO L225 Difference]: With dead ends: 2518 [2018-12-09 15:45:46,249 INFO L226 Difference]: Without dead ends: 1334 [2018-12-09 15:45:46,251 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:45:46,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2018-12-09 15:45:46,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1333. [2018-12-09 15:45:46,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1333 states. [2018-12-09 15:45:46,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1685 transitions. [2018-12-09 15:45:46,276 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1685 transitions. Word has length 221 [2018-12-09 15:45:46,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:45:46,276 INFO L480 AbstractCegarLoop]: Abstraction has 1333 states and 1685 transitions. [2018-12-09 15:45:46,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 15:45:46,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1685 transitions. [2018-12-09 15:45:46,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-12-09 15:45:46,278 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:45:46,278 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 3, 3, 3, 3, 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] [2018-12-09 15:45:46,279 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:45:46,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:45:46,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1716693714, now seen corresponding path program 1 times [2018-12-09 15:45:46,279 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:45:46,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:46,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:45:46,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:45:46,280 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:45:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:45:46,392 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 132 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:45:46,392 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:45:46,392 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:45:46,393 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-12-09 15:45:46,393 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [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], [477], [479], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 15:45:46,395 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:45:46,395 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:45:46,479 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:45:46,479 INFO L272 AbstractInterpreter]: Visited 95 different actions 278 times. Merged at 6 different actions 14 times. Never widened. Performed 2670 root evaluator evaluations with a maximum evaluation depth of 8. Performed 2670 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 15:45:46,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:45:46,480 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:45:46,480 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:45:46,481 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:45:46,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:45:46,489 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:45:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:45:46,529 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:45:56,345 WARN L180 SmtUtils]: Spent 9.75 s on a formula simplification. DAG size of input: 113 DAG size of output: 48 [2018-12-09 15:45:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 131 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:45:56,392 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:45:56,535 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 131 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:45:56,550 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 15:45:56,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2018-12-09 15:45:56,550 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 15:45:56,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 15:45:56,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 15:45:56,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-12-09 15:45:56,551 INFO L87 Difference]: Start difference. First operand 1333 states and 1685 transitions. Second operand 12 states. [2018-12-09 15:45:58,896 WARN L180 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 57 DAG size of output: 26 [2018-12-09 15:46:00,147 WARN L180 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 54 DAG size of output: 28 [2018-12-09 15:46:06,040 WARN L180 SmtUtils]: Spent 5.83 s on a formula simplification that was a NOOP. DAG size: 53 [2018-12-09 15:46:10,095 WARN L180 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 53 [2018-12-09 15:46:16,283 WARN L180 SmtUtils]: Spent 6.12 s on a formula simplification that was a NOOP. DAG size: 55 [2018-12-09 15:46:27,050 WARN L180 SmtUtils]: Spent 10.73 s on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2018-12-09 15:46:33,846 WARN L180 SmtUtils]: Spent 6.64 s on a formula simplification. DAG size of input: 61 DAG size of output: 28 [2018-12-09 15:46:41,774 WARN L180 SmtUtils]: Spent 6.93 s on a formula simplification that was a NOOP. DAG size: 57 [2018-12-09 15:46:42,985 WARN L180 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 57 DAG size of output: 25 [2018-12-09 15:46:44,339 WARN L180 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 56 DAG size of output: 31 [2018-12-09 15:46:55,089 WARN L180 SmtUtils]: Spent 10.63 s on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2018-12-09 15:46:56,358 WARN L180 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 53 DAG size of output: 28 [2018-12-09 15:47:04,642 WARN L180 SmtUtils]: Spent 8.05 s on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2018-12-09 15:47:05,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:47:05,432 INFO L93 Difference]: Finished difference Result 4087 states and 5531 transitions. [2018-12-09 15:47:05,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-12-09 15:47:05,432 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2018-12-09 15:47:05,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:47:05,438 INFO L225 Difference]: With dead ends: 4087 [2018-12-09 15:47:05,439 INFO L226 Difference]: Without dead ends: 2903 [2018-12-09 15:47:05,441 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 470 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 778 ImplicationChecksByTransitivity, 75.0s TimeCoverageRelationStatistics Valid=721, Invalid=2141, Unknown=0, NotChecked=0, Total=2862 [2018-12-09 15:47:05,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2018-12-09 15:47:05,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2825. [2018-12-09 15:47:05,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2825 states. [2018-12-09 15:47:05,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 3355 transitions. [2018-12-09 15:47:05,481 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 3355 transitions. Word has length 227 [2018-12-09 15:47:05,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:47:05,482 INFO L480 AbstractCegarLoop]: Abstraction has 2825 states and 3355 transitions. [2018-12-09 15:47:05,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 15:47:05,482 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 3355 transitions. [2018-12-09 15:47:05,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-12-09 15:47:05,483 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:47:05,483 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 3, 3, 3, 3, 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] [2018-12-09 15:47:05,484 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:47:05,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:47:05,484 INFO L82 PathProgramCache]: Analyzing trace with hash 805990106, now seen corresponding path program 1 times [2018-12-09 15:47:05,484 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:47:05,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:47:05,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:47:05,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:47:05,484 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:47:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:47:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 129 proven. 5 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-12-09 15:47:05,578 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:47:05,578 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:47:05,578 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 232 with the following transitions: [2018-12-09 15:47:05,579 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [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], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [542], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 15:47:05,580 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:47:05,580 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:47:05,672 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:47:05,672 INFO L272 AbstractInterpreter]: Visited 90 different actions 261 times. Merged at 6 different actions 12 times. Never widened. Performed 2488 root evaluator evaluations with a maximum evaluation depth of 8. Performed 2488 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 15:47:05,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:47:05,673 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:47:05,673 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:47:05,673 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:47:05,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:47:05,682 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:47:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:47:05,724 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:47:05,768 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:47:05,769 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:47:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:47:05,868 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 15:47:05,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-12-09 15:47:05,869 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 15:47:05,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 15:47:05,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 15:47:05,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-09 15:47:05,870 INFO L87 Difference]: Start difference. First operand 2825 states and 3355 transitions. Second operand 11 states. [2018-12-09 15:47:07,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:47:07,093 INFO L93 Difference]: Finished difference Result 7954 states and 9536 transitions. [2018-12-09 15:47:07,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-09 15:47:07,094 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 231 [2018-12-09 15:47:07,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:47:07,100 INFO L225 Difference]: With dead ends: 7954 [2018-12-09 15:47:07,100 INFO L226 Difference]: Without dead ends: 3375 [2018-12-09 15:47:07,105 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 466 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2018-12-09 15:47:07,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3375 states. [2018-12-09 15:47:07,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3375 to 2511. [2018-12-09 15:47:07,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2511 states. [2018-12-09 15:47:07,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 2794 transitions. [2018-12-09 15:47:07,143 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 2794 transitions. Word has length 231 [2018-12-09 15:47:07,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:47:07,143 INFO L480 AbstractCegarLoop]: Abstraction has 2511 states and 2794 transitions. [2018-12-09 15:47:07,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 15:47:07,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 2794 transitions. [2018-12-09 15:47:07,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-12-09 15:47:07,160 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:47:07,160 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-12-09 15:47:07,161 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:47:07,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:47:07,161 INFO L82 PathProgramCache]: Analyzing trace with hash -807705670, now seen corresponding path program 1 times [2018-12-09 15:47:07,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:47:07,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:47:07,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:47:07,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:47:07,162 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:47:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:47:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 281 proven. 166 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 15:47:07,500 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:47:07,500 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:47:07,500 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 360 with the following transitions: [2018-12-09 15:47:07,500 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [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], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 15:47:07,503 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:47:07,503 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:47:08,132 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:47:08,132 INFO L272 AbstractInterpreter]: Visited 125 different actions 251 times. Merged at 7 different actions 12 times. Never widened. Performed 2571 root evaluator evaluations with a maximum evaluation depth of 20. Performed 2571 inverse root evaluator evaluations with a maximum inverse evaluation depth of 20. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 15:47:08,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:47:08,135 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:47:08,135 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:47:08,135 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:47:08,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:47:08,141 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:47:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:47:08,183 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:47:08,253 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-12-09 15:47:08,253 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:47:08,398 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-12-09 15:47:08,423 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 15:47:08,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 16 [2018-12-09 15:47:08,423 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 15:47:08,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 15:47:08,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 15:47:08,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-12-09 15:47:08,424 INFO L87 Difference]: Start difference. First operand 2511 states and 2794 transitions. Second operand 15 states. [2018-12-09 15:47:11,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:47:11,045 INFO L93 Difference]: Finished difference Result 6435 states and 7409 transitions. [2018-12-09 15:47:11,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-12-09 15:47:11,046 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 359 [2018-12-09 15:47:11,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:47:11,052 INFO L225 Difference]: With dead ends: 6435 [2018-12-09 15:47:11,052 INFO L226 Difference]: Without dead ends: 4073 [2018-12-09 15:47:11,055 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 742 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=468, Invalid=1982, Unknown=0, NotChecked=0, Total=2450 [2018-12-09 15:47:11,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2018-12-09 15:47:11,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 3262. [2018-12-09 15:47:11,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3262 states. [2018-12-09 15:47:11,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 3621 transitions. [2018-12-09 15:47:11,112 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 3621 transitions. Word has length 359 [2018-12-09 15:47:11,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:47:11,113 INFO L480 AbstractCegarLoop]: Abstraction has 3262 states and 3621 transitions. [2018-12-09 15:47:11,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 15:47:11,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 3621 transitions. [2018-12-09 15:47:11,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-12-09 15:47:11,116 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:47:11,116 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:47:11,116 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:47:11,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:47:11,117 INFO L82 PathProgramCache]: Analyzing trace with hash 362141877, now seen corresponding path program 1 times [2018-12-09 15:47:11,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:47:11,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:47:11,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:47:11,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:47:11,117 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:47:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:47:11,671 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 253 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:47:11,671 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:47:11,671 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:47:11,671 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 401 with the following transitions: [2018-12-09 15:47:11,671 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [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], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 15:47:11,673 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:47:11,673 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:47:11,786 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:47:11,786 INFO L272 AbstractInterpreter]: Visited 144 different actions 426 times. Merged at 7 different actions 15 times. Never widened. Performed 4509 root evaluator evaluations with a maximum evaluation depth of 9. Performed 4509 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 15:47:11,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:47:11,787 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:47:11,788 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:47:11,788 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:47:11,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:47:11,793 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:47:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:47:11,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:47:14,809 WARN L180 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-09 15:47:18,904 WARN L180 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 123 DAG size of output: 62 [2018-12-09 15:47:20,185 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 166 proven. 204 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-12-09 15:47:20,185 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:47:20,402 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:20,592 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2018-12-09 15:47:20,594 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:20,638 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:20,682 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:20,728 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:20,770 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:20,811 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:20,854 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:20,902 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:20,949 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:20,993 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,040 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,086 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,127 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,170 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,214 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,260 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,310 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,352 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,394 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,450 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,501 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,548 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,596 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,645 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,690 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,735 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,782 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,828 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,881 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,934 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:21,987 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,042 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,092 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,141 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,188 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,235 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,281 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,334 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,384 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,434 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,488 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,535 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,580 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,630 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,686 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,735 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,782 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,826 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,872 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,917 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:22,960 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,002 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,052 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,094 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,138 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,180 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,224 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,271 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,322 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,375 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,426 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,478 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,525 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,572 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,619 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,664 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,709 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,777 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,826 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,876 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,918 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:23,969 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:24,016 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:24,069 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:24,121 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:24,171 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:24,222 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:24,275 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:24,322 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:47:24,694 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-12-09 15:47:24,709 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 15:47:24,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 6] total 30 [2018-12-09 15:47:24,709 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 15:47:24,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-12-09 15:47:24,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-12-09 15:47:24,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=756, Unknown=2, NotChecked=0, Total=870 [2018-12-09 15:47:24,710 INFO L87 Difference]: Start difference. First operand 3262 states and 3621 transitions. Second operand 27 states. [2018-12-09 15:47:26,155 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2018-12-09 15:47:29,613 WARN L180 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 114 DAG size of output: 80 [2018-12-09 15:47:30,679 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 55 [2018-12-09 15:47:31,666 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 49 [2018-12-09 15:47:33,387 WARN L180 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2018-12-09 15:47:34,202 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-12-09 15:47:50,201 WARN L180 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2018-12-09 15:47:57,128 WARN L180 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2018-12-09 15:48:00,413 WARN L180 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2018-12-09 15:48:02,135 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 93 [2018-12-09 15:48:07,680 WARN L180 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2018-12-09 15:48:16,331 WARN L180 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 129 DAG size of output: 102 [2018-12-09 15:48:18,393 WARN L180 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 87 DAG size of output: 40 [2018-12-09 15:48:34,818 WARN L180 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2018-12-09 15:48:55,797 WARN L180 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2018-12-09 15:49:26,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:49:26,878 INFO L93 Difference]: Finished difference Result 8966 states and 10121 transitions. [2018-12-09 15:49:26,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-12-09 15:49:26,878 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 400 [2018-12-09 15:49:26,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:49:26,888 INFO L225 Difference]: With dead ends: 8966 [2018-12-09 15:49:26,888 INFO L226 Difference]: Without dead ends: 5853 [2018-12-09 15:49:26,893 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 726 SyntacticMatches, 84 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6855 ImplicationChecksByTransitivity, 40.8s TimeCoverageRelationStatistics Valid=2632, Invalid=13869, Unknown=11, NotChecked=0, Total=16512 [2018-12-09 15:49:26,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5853 states. [2018-12-09 15:49:26,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5853 to 4412. [2018-12-09 15:49:26,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4412 states. [2018-12-09 15:49:26,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 4803 transitions. [2018-12-09 15:49:26,955 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 4803 transitions. Word has length 400 [2018-12-09 15:49:26,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:49:26,956 INFO L480 AbstractCegarLoop]: Abstraction has 4412 states and 4803 transitions. [2018-12-09 15:49:26,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-12-09 15:49:26,956 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 4803 transitions. [2018-12-09 15:49:26,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2018-12-09 15:49:26,962 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:49:26,962 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-12-09 15:49:26,962 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:49:26,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:49:26,962 INFO L82 PathProgramCache]: Analyzing trace with hash 466690654, now seen corresponding path program 1 times [2018-12-09 15:49:26,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:49:26,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:49:26,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:49:26,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:49:26,963 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:49:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:49:27,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 545 proven. 410 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2018-12-09 15:49:27,915 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:49:27,915 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:49:27,915 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 606 with the following transitions: [2018-12-09 15:49:27,915 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [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], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [730], [731], [735], [739], [743], [747], [751], [754], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-09 15:49:27,916 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:49:27,916 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:49:28,137 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:49:28,137 INFO L272 AbstractInterpreter]: Visited 146 different actions 589 times. Merged at 9 different actions 36 times. Never widened. Performed 6325 root evaluator evaluations with a maximum evaluation depth of 14. Performed 6325 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Found 11 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-09 15:49:28,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:49:28,139 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:49:28,139 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:49:28,139 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:49:28,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:49:28,145 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:49:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:49:28,218 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:49:29,839 WARN L180 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 72 DAG size of output: 23 [2018-12-09 15:49:31,407 WARN L180 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-12-09 15:49:34,600 WARN L180 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 123 DAG size of output: 62 [2018-12-09 15:49:34,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 822 proven. 134 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2018-12-09 15:49:34,975 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:49:35,201 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:35,361 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2018-12-09 15:49:35,363 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:35,419 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:35,468 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:35,524 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:35,575 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:35,624 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:35,678 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:35,729 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:35,776 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:35,826 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:35,886 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:35,956 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,033 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,114 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,172 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,227 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,281 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,325 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,372 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,419 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,465 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,514 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,565 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,613 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,657 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,705 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,751 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,800 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,847 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,899 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,946 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:36,999 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,050 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,099 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,152 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,203 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,250 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,298 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,343 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,389 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,436 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,484 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,532 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,585 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,638 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,687 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,733 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,784 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,836 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,890 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,944 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:37,998 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,053 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,099 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,149 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,205 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,264 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,322 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,374 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,430 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,483 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,535 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,583 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,632 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,680 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,724 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,773 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,834 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,880 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,926 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:38,979 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:39,023 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:39,071 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:39,119 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:39,173 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:39,229 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:39,284 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:39,335 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:39,383 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-09 15:49:39,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 662 proven. 2 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2018-12-09 15:49:39,958 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 15:49:39,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 9, 6] total 31 [2018-12-09 15:49:39,958 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 15:49:39,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-12-09 15:49:39,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-12-09 15:49:39,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=810, Unknown=1, NotChecked=0, Total=930 [2018-12-09 15:49:39,960 INFO L87 Difference]: Start difference. First operand 4412 states and 4803 transitions. Second operand 27 states. [2018-12-09 15:49:41,215 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 109 [2018-12-09 15:49:43,001 WARN L180 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2018-12-09 15:49:43,370 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2018-12-09 15:49:45,686 WARN L180 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2018-12-09 15:49:47,517 WARN L180 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2018-12-09 15:49:52,285 WARN L180 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 57 DAG size of output: 36 [2018-12-09 15:49:55,266 WARN L180 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-12-09 15:49:59,456 WARN L180 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2018-12-09 15:50:01,682 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 70 DAG size of output: 39 [2018-12-09 15:50:03,364 WARN L180 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 56 DAG size of output: 35 [2018-12-09 15:50:05,642 WARN L180 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2018-12-09 15:50:08,208 WARN L180 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 76 DAG size of output: 43 [2018-12-09 15:50:10,066 WARN L180 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2018-12-09 15:50:11,872 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-12-09 15:50:15,812 WARN L180 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2018-12-09 15:50:18,313 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 101 [2018-12-09 15:50:20,009 WARN L180 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 76 DAG size of output: 38 [2018-12-09 15:50:21,916 WARN L180 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-12-09 15:50:23,865 WARN L180 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2018-12-09 15:50:25,596 WARN L180 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2018-12-09 15:50:29,677 WARN L180 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2018-12-09 15:50:32,937 WARN L180 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 116 DAG size of output: 93 [2018-12-09 15:50:34,729 WARN L180 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2018-12-09 15:50:36,871 WARN L180 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2018-12-09 15:50:39,395 WARN L180 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2018-12-09 15:50:41,734 WARN L180 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2018-12-09 15:50:44,342 WARN L180 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2018-12-09 15:50:46,440 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2018-12-09 15:50:48,475 WARN L180 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 70 DAG size of output: 43 [2018-12-09 15:50:50,231 WARN L180 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-12-09 15:50:51,948 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2018-12-09 15:50:54,941 WARN L180 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-12-09 15:50:55,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:50:55,071 INFO L93 Difference]: Finished difference Result 9282 states and 10502 transitions. [2018-12-09 15:50:55,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-12-09 15:50:55,071 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 605 [2018-12-09 15:50:55,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:50:55,072 INFO L225 Difference]: With dead ends: 9282 [2018-12-09 15:50:55,072 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 15:50:55,081 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1369 GetRequests, 1170 SyntacticMatches, 79 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6195 ImplicationChecksByTransitivity, 63.0s TimeCoverageRelationStatistics Valid=2320, Invalid=12441, Unknown=1, NotChecked=0, Total=14762 [2018-12-09 15:50:55,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 15:50:55,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 15:50:55,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 15:50:55,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 15:50:55,082 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 605 [2018-12-09 15:50:55,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:50:55,082 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:50:55,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-12-09 15:50:55,082 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 15:50:55,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 15:50:55,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 15:50:55,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,326 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,362 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,362 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,363 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,373 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,661 WARN L180 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 510 DAG size of output: 442 [2018-12-09 15:50:55,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,701 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,717 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,724 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,921 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:50:55,993 WARN L180 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 440 [2018-12-09 15:51:07,906 WARN L180 SmtUtils]: Spent 11.84 s on a formula simplification. DAG size of input: 389 DAG size of output: 101 [2018-12-09 15:51:21,513 WARN L180 SmtUtils]: Spent 13.60 s on a formula simplification. DAG size of input: 442 DAG size of output: 72 [2018-12-09 15:51:34,256 WARN L180 SmtUtils]: Spent 12.74 s on a formula simplification. DAG size of input: 439 DAG size of output: 72 [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|)) [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-09 15:51:34,258 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-12-09 15:51:34,259 INFO L448 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-12-09 15:51:34,260 INFO L448 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-12-09 15:51:34,261 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-12-09 15:51:34,262 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-09 15:51:34,263 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 199) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,264 INFO L448 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-09 15:51:34,265 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse16 (= 9 |old(~a19~0)|)) (.cse17 (= |old(~a19~0)| ~a19~0)) (.cse7 (< |old(~a10~0)| 2)) (.cse18 (<= (+ |old(~a1~0)| 13) 0)) (.cse2 (= 8 |old(~a19~0)|)) (.cse6 (= ~a1~0 |old(~a1~0)|)) (.cse14 (= ~a19~0 |old(~a19~0)|)) (.cse15 (= |old(~a10~0)| ~a10~0))) (let ((.cse9 (< |old(~a1~0)| 23)) (.cse11 (and .cse6 .cse14 .cse15)) (.cse8 (or .cse7 (= 10 |old(~a19~0)|) .cse18 .cse2)) (.cse13 (forall ((v_~a1~0_430 Int)) (let ((.cse20 (mod v_~a1~0_430 299993))) (or (= .cse20 0) (< 0 (+ v_~a1~0_430 13)) (< (+ |old(~a1~0)| 600000) .cse20) (<= 0 v_~a1~0_430))))) (.cse0 (< 8 |old(~a19~0)|)) (.cse1 (and .cse17 .cse15)) (.cse12 (not .cse16)) (.cse3 (= 1 |old(~a10~0)|)) (.cse4 (not (= 14 ~a4~0))) (.cse10 (and .cse15 .cse14 .cse6)) (.cse5 (not (= 0 ~a12~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (or .cse2 (not (= 2 |old(~a10~0)|))) .cse4 .cse5 (and .cse6 .cse1)) (or (<= 449589 ~a1~0) .cse7 .cse0 (< |old(~a1~0)| 449589)) (or .cse8 .cse9 .cse4 .cse5 .cse10) (or (< 4 |old(~a1~0)|) .cse11 .cse4 .cse5 .cse12 (not (= 3 |old(~a10~0)|)) .cse13) (or .cse9 .cse4 .cse5 .cse12 (not (= 0 |old(~a10~0)|)) .cse11) (or (and .cse14 .cse15 .cse6) (or .cse16 (< 2 |old(~a10~0)|) .cse2) .cse4 .cse5) (or (and .cse17 (< 0 (+ ~a1~0 13)) .cse15) .cse0 .cse18) (or .cse10 (or .cse4 (let ((.cse19 (< |old(~a10~0)| 4))) (and (or .cse8 .cse19) (or .cse12 .cse19))) .cse5) .cse13) (or .cse7 .cse0 .cse1) (or (or .cse12 (not .cse3)) .cse4 .cse10 .cse5)))) [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-09 15:51:34,266 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-12-09 15:51:34,267 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14) (= 9 ~a19~0)) [2018-12-09 15:51:34,268 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 15:51:34,268 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 14 ~a4~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (and (= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0)) (not (= 0 |old(~a10~0)|))) [2018-12-09 15:51:34,268 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-12-09 15:51:34,269 INFO L444 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse5 (<= 2 ~a10~0)) (.cse6 (not (= ~a19~0 10))) (.cse4 (< 0 (+ ~a1~0 13)))) (let ((.cse0 (and .cse5 .cse6 .cse4)) (.cse1 (<= 23 ~a1~0)) (.cse2 (and .cse5 .cse6))) (or (and (<= 4 ~a10~0) .cse0) (not (= 0 |old(~a10~0)|)) (and .cse1 .cse0) (and (not (= ~a19~0 8)) (<= ~a10~0 2) (not (= ~a19~0 9))) (and (= |old(~a19~0)| ~a19~0) (= 1 ~a10~0)) (not (= 14 ~a4~0)) (and (<= ~a19~0 8) .cse2) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and .cse1 (= 0 ~a10~0)) (= 2 ~a10~0) (and (exists ((v_~a1~0_430 Int)) (let ((.cse3 (mod v_~a1~0_430 299993))) (and (< v_~a1~0_430 0) (<= (+ v_~a1~0_430 13) 0) (<= .cse3 (+ ~a1~0 600000)) (not (= .cse3 0))))) (<= ~a1~0 4) .cse2 (= 9 ~a19~0)) (and (= 8 ~a19~0) .cse4) (not (= 9 |old(~a19~0)|))))) [2018-12-09 15:51:34,269 INFO L448 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-12-09 15:51:34,269 INFO L448 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-12-09 15:51:34,269 INFO L444 ceAbstractionStarter]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse5 (<= 2 ~a10~0)) (.cse6 (not (= ~a19~0 10))) (.cse4 (< 0 (+ ~a1~0 13)))) (let ((.cse0 (and .cse5 .cse6 .cse4)) (.cse1 (<= 23 ~a1~0)) (.cse2 (and .cse5 .cse6))) (or (and (<= 4 ~a10~0) .cse0) (not (= 0 |old(~a10~0)|)) (and .cse1 .cse0) (and (not (= ~a19~0 8)) (<= ~a10~0 2) (not (= ~a19~0 9))) (and (= |old(~a19~0)| ~a19~0) (= 1 ~a10~0)) (not (= 14 ~a4~0)) (and (<= ~a19~0 8) .cse2) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and .cse1 (= 0 ~a10~0)) (= 2 ~a10~0) (and (exists ((v_~a1~0_430 Int)) (let ((.cse3 (mod v_~a1~0_430 299993))) (and (< v_~a1~0_430 0) (<= (+ v_~a1~0_430 13) 0) (<= .cse3 (+ ~a1~0 600000)) (not (= .cse3 0))))) (<= ~a1~0 4) .cse2 (= 9 ~a19~0)) (and (= 8 ~a19~0) .cse4) (not (= 9 |old(~a19~0)|))))) [2018-12-09 15:51:34,269 INFO L448 ceAbstractionStarter]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2018-12-09 15:51:34,273 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,273 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,274 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,274 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,278 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,278 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,278 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,278 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:51:34 BoogieIcfgContainer [2018-12-09 15:51:34,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 15:51:34,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:51:34,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:51:34,281 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:51:34,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:45:38" (3/4) ... [2018-12-09 15:51:34,285 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 15:51:34,288 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 15:51:34,288 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 15:51:34,289 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 15:51:34,297 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 15:51:34,297 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 15:51:34,317 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((4 <= a10 && (2 <= a10 && !(a19 == 10)) && 0 < a1 + 13) || !(0 == \old(a10))) || (23 <= a1 && (2 <= a10 && !(a19 == 10)) && 0 < a1 + 13)) || ((!(a19 == 8) && a10 <= 2) && !(a19 == 9))) || (\old(a19) == a19 && 1 == a10)) || !(14 == a4)) || (a19 <= 8 && 2 <= a10 && !(a19 == 10))) || !(23 == \old(a1))) || !(0 == a12)) || (23 <= a1 && 0 == a10)) || 2 == a10) || ((((\exists v_~a1~0_430 : int :: ((v_~a1~0_430 < 0 && v_~a1~0_430 + 13 <= 0) && v_~a1~0_430 % 299993 <= a1 + 600000) && !(v_~a1~0_430 % 299993 == 0)) && a1 <= 4) && 2 <= a10 && !(a19 == 10)) && 9 == a19)) || (8 == a19 && 0 < a1 + 13)) || !(9 == \old(a19)) [2018-12-09 15:51:34,371 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bfa2b97f-328b-44d3-892f-700665f9c284/bin-2019/utaipan/witness.graphml [2018-12-09 15:51:34,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:51:34,372 INFO L168 Benchmark]: Toolchain (without parser) took 356546.61 ms. Allocated memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: 932.7 MB). Free memory was 945.9 MB in the beginning and 1.3 GB in the end (delta: -398.5 MB). Peak memory consumption was 534.2 MB. Max. memory is 11.5 GB. [2018-12-09 15:51:34,372 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:51:34,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.9 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -123.4 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB. [2018-12-09 15:51:34,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:51:34,373 INFO L168 Benchmark]: Boogie Preprocessor took 50.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 15:51:34,373 INFO L168 Benchmark]: RCFGBuilder took 609.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 964.1 MB in the end (delta: 101.7 MB). Peak memory consumption was 101.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:51:34,373 INFO L168 Benchmark]: TraceAbstraction took 355455.57 ms. Allocated memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: 847.8 MB). Free memory was 964.1 MB in the beginning and 1.4 GB in the end (delta: -404.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-12-09 15:51:34,373 INFO L168 Benchmark]: Witness Printer took 90.36 ms. Allocated memory is still 2.0 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:51:34,374 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.9 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -123.4 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 609.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 964.1 MB in the end (delta: 101.7 MB). Peak memory consumption was 101.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 355455.57 ms. Allocated memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: 847.8 MB). Free memory was 964.1 MB in the beginning and 1.4 GB in the end (delta: -404.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. * Witness Printer took 90.36 ms. Allocated memory is still 2.0 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 199]: 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: 582]: Loop Invariant [2018-12-09 15:51:34,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,378 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,378 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,378 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,378 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,379 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-09 15:51:34,379 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] Derived loop invariant: (((((((((((((4 <= a10 && (2 <= a10 && !(a19 == 10)) && 0 < a1 + 13) || !(0 == \old(a10))) || (23 <= a1 && (2 <= a10 && !(a19 == 10)) && 0 < a1 + 13)) || ((!(a19 == 8) && a10 <= 2) && !(a19 == 9))) || (\old(a19) == a19 && 1 == a10)) || !(14 == a4)) || (a19 <= 8 && 2 <= a10 && !(a19 == 10))) || !(23 == \old(a1))) || !(0 == a12)) || (23 <= a1 && 0 == a10)) || 2 == a10) || ((((\exists v_~a1~0_430 : int :: ((v_~a1~0_430 < 0 && v_~a1~0_430 + 13 <= 0) && v_~a1~0_430 % 299993 <= a1 + 600000) && !(v_~a1~0_430 % 299993 == 0)) && a1 <= 4) && 2 <= a10 && !(a19 == 10)) && 9 == a19)) || (8 == a19 && 0 < a1 + 13)) || !(9 == \old(a19)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. SAFE Result, 355.4s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 275.7s AutomataDifference, 0.0s DeadEndRemovalTime, 39.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 956 SDtfs, 18422 SDslu, 2150 SDs, 0 SdLazy, 36257 SolverSat, 5474 SolverUnsat, 76 SolverUnknown, 0 SolverNotchecked, 122.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 4660 GetRequests, 4083 SyntacticMatches, 177 SemanticMatches, 400 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14646 ImplicationChecksByTransitivity, 180.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4412occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.5s AbstIntTime, 7 AbstIntIterations, 1 AbstIntStrong, 0.9974409681227866 AbsIntWeakeningRatio, 0.11818181818181818 AbsIntAvgWeakeningVarsNumRemoved, 15.522727272727273 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 3533 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 218 PreInvPairs, 396 NumberOfFragments, 708 HoareAnnotationTreeSize, 218 FomulaSimplifications, 139059 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 68813 FormulaSimplificationTreeSizeReductionInter, 38.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 36.4s InterpolantComputationTime, 4771 NumberOfCodeBlocks, 4771 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 6711 ConstructedInterpolants, 330 QuantifiedInterpolants, 24734010 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3131 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 23 InterpolantComputations, 6 PerfectInterpolantSequences, 6841/8264 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...