./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label08_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label08_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/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 5c83e6dcd4eaa7ff27477aff727a229790b16ec1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:20:59,752 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:20:59,754 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:20:59,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:20:59,760 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:20:59,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:20:59,761 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:20:59,762 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:20:59,763 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:20:59,764 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:20:59,765 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:20:59,765 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:20:59,766 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:20:59,766 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:20:59,767 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:20:59,767 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:20:59,768 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:20:59,769 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:20:59,770 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:20:59,771 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:20:59,771 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:20:59,772 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:20:59,773 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:20:59,773 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:20:59,774 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:20:59,774 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:20:59,775 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:20:59,775 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:20:59,776 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:20:59,777 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:20:59,777 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:20:59,777 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:20:59,778 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:20:59,778 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:20:59,778 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:20:59,779 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:20:59,779 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 14:20:59,790 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:20:59,790 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:20:59,791 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:20:59,791 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:20:59,791 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:20:59,791 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:20:59,791 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:20:59,792 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:20:59,792 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:20:59,792 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:20:59,792 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:20:59,792 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:20:59,792 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:20:59,792 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:20:59,793 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:20:59,793 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:20:59,793 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:20:59,793 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:20:59,793 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:20:59,793 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:20:59,793 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:20:59,793 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:20:59,794 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:20:59,794 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:20:59,794 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:20:59,794 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:20:59,794 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:20:59,794 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:20:59,794 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:20:59,794 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:20:59,794 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:20:59,795 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:20:59,795 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:20:59,795 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:20:59,795 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:20:59,795 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:20:59,795 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:20:59,795 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_41d91d6d-2d32-47fc-90c4-aa036885c134/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 -> 5c83e6dcd4eaa7ff27477aff727a229790b16ec1 [2018-11-18 14:20:59,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:20:59,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:20:59,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:20:59,829 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:20:59,830 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:20:59,830 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label08_true-unreach-call.c [2018-11-18 14:20:59,869 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/data/a1c024091/c2ee5e4a622840cb91c2b80df1f444cc/FLAG4c51d98d0 [2018-11-18 14:21:00,331 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:21:00,332 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/sv-benchmarks/c/eca-rers2012/Problem10_label08_true-unreach-call.c [2018-11-18 14:21:00,341 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/data/a1c024091/c2ee5e4a622840cb91c2b80df1f444cc/FLAG4c51d98d0 [2018-11-18 14:21:00,849 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/data/a1c024091/c2ee5e4a622840cb91c2b80df1f444cc [2018-11-18 14:21:00,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:21:00,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:21:00,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:21:00,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:21:00,856 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:21:00,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:21:00" (1/1) ... [2018-11-18 14:21:00,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88e9939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:00, skipping insertion in model container [2018-11-18 14:21:00,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:21:00" (1/1) ... [2018-11-18 14:21:00,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:21:00,903 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:21:01,146 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:21:01,149 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:21:01,217 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:21:01,284 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:21:01,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:01 WrapperNode [2018-11-18 14:21:01,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:21:01,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:21:01,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:21:01,286 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:21:01,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:01" (1/1) ... [2018-11-18 14:21:01,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:01" (1/1) ... [2018-11-18 14:21:01,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:21:01,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:21:01,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:21:01,314 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:21:01,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:01" (1/1) ... [2018-11-18 14:21:01,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:01" (1/1) ... [2018-11-18 14:21:01,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:01" (1/1) ... [2018-11-18 14:21:01,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:01" (1/1) ... [2018-11-18 14:21:01,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:01" (1/1) ... [2018-11-18 14:21:01,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:01" (1/1) ... [2018-11-18 14:21:01,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:01" (1/1) ... [2018-11-18 14:21:01,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:21:01,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:21:01,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:21:01,365 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:21:01,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:21:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 14:21:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:21:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:21:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 14:21:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 14:21:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:21:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:21:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:21:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:21:02,360 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:21:02,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:02 BoogieIcfgContainer [2018-11-18 14:21:02,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:21:02,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:21:02,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:21:02,363 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:21:02,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:21:00" (1/3) ... [2018-11-18 14:21:02,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351c28ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:21:02, skipping insertion in model container [2018-11-18 14:21:02,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:21:01" (2/3) ... [2018-11-18 14:21:02,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351c28ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:21:02, skipping insertion in model container [2018-11-18 14:21:02,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:02" (3/3) ... [2018-11-18 14:21:02,367 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label08_true-unreach-call.c [2018-11-18 14:21:02,373 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:21:02,379 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:21:02,391 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:21:02,416 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:21:02,416 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:21:02,416 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:21:02,416 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:21:02,416 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:21:02,416 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:21:02,417 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:21:02,417 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:21:02,435 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-18 14:21:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 14:21:02,440 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:21:02,441 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:21:02,443 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:21:02,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:21:02,447 INFO L82 PathProgramCache]: Analyzing trace with hash -247440047, now seen corresponding path program 1 times [2018-11-18 14:21:02,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:21:02,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:21:02,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:21:02,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:21:02,480 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:21:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:21:02,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:21:02,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:21:02,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:21:02,659 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:21:02,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:21:02,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:21:02,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:21:02,675 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-18 14:21:03,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:21:03,230 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-18 14:21:03,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:21:03,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-18 14:21:03,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:21:03,243 INFO L225 Difference]: With dead ends: 574 [2018-11-18 14:21:03,243 INFO L226 Difference]: Without dead ends: 356 [2018-11-18 14:21:03,247 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:21:03,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-18 14:21:03,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-18 14:21:03,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-18 14:21:03,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 612 transitions. [2018-11-18 14:21:03,288 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 612 transitions. Word has length 47 [2018-11-18 14:21:03,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:21:03,289 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 612 transitions. [2018-11-18 14:21:03,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:21:03,289 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 612 transitions. [2018-11-18 14:21:03,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-18 14:21:03,293 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:21:03,293 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:21:03,294 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:21:03,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:21:03,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1218234717, now seen corresponding path program 1 times [2018-11-18 14:21:03,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:21:03,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:21:03,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:21:03,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:21:03,296 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:21:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:21:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 14:21:03,439 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:21:03,439 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:21:03,440 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-11-18 14:21:03,441 INFO L202 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], [277], [279], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 14:21:03,466 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:21:03,466 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:21:03,857 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:21:03,858 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 times. Merged at 5 different actions 9 times. Never widened. Performed 1953 root evaluator evaluations with a maximum evaluation depth of 7. Performed 1953 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 14:21:03,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:21:03,878 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:21:04,077 INFO L227 lantSequenceWeakener]: Weakened 115 states. On average, predicates are now at 76.01% of their original sizes. [2018-11-18 14:21:04,077 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:21:04,132 INFO L415 sIntCurrentIteration]: We unified 117 AI predicates to 117 [2018-11-18 14:21:04,133 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:21:04,133 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:21:04,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-11-18 14:21:04,133 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:21:04,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:21:04,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:21:04,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:21:04,135 INFO L87 Difference]: Start difference. First operand 356 states and 612 transitions. Second operand 10 states. [2018-11-18 14:21:37,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:21:37,566 INFO L93 Difference]: Finished difference Result 1235 states and 2215 transitions. [2018-11-18 14:21:37,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 14:21:37,566 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 118 [2018-11-18 14:21:37,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:21:37,569 INFO L225 Difference]: With dead ends: 1235 [2018-11-18 14:21:37,569 INFO L226 Difference]: Without dead ends: 885 [2018-11-18 14:21:37,570 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 128 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-18 14:21:37,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2018-11-18 14:21:37,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 871. [2018-11-18 14:21:37,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2018-11-18 14:21:37,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1219 transitions. [2018-11-18 14:21:37,596 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1219 transitions. Word has length 118 [2018-11-18 14:21:37,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:21:37,596 INFO L480 AbstractCegarLoop]: Abstraction has 871 states and 1219 transitions. [2018-11-18 14:21:37,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:21:37,596 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1219 transitions. [2018-11-18 14:21:37,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-11-18 14:21:37,601 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:21:37,601 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:21:37,601 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:21:37,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:21:37,602 INFO L82 PathProgramCache]: Analyzing trace with hash 2129360251, now seen corresponding path program 1 times [2018-11-18 14:21:37,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:21:37,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:21:37,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:21:37,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:21:37,603 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:21:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:21:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:21:37,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:21:37,754 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:21:37,754 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-11-18 14:21:37,754 INFO L202 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], [277], [279], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 14:21:37,759 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:21:37,759 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:21:37,882 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:21:37,882 INFO L272 AbstractInterpreter]: Visited 89 different actions 176 times. Merged at 7 different actions 10 times. Never widened. Performed 1631 root evaluator evaluations with a maximum evaluation depth of 15. Performed 1631 inverse root evaluator evaluations with a maximum inverse evaluation depth of 15. Found 2 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 14:21:37,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:21:37,887 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:21:37,887 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:21:37,887 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:21:37,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:21:37,900 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:21:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:21:37,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:21:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:21:38,068 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:21:38,201 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:21:38,226 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:21:38,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-18 14:21:38,226 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:21:38,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:21:38,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:21:38,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:21:38,227 INFO L87 Difference]: Start difference. First operand 871 states and 1219 transitions. Second operand 9 states. [2018-11-18 14:21:39,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:21:39,855 INFO L93 Difference]: Finished difference Result 2287 states and 3670 transitions. [2018-11-18 14:21:39,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 14:21:39,856 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 201 [2018-11-18 14:21:39,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:21:39,862 INFO L225 Difference]: With dead ends: 2287 [2018-11-18 14:21:39,862 INFO L226 Difference]: Without dead ends: 1030 [2018-11-18 14:21:39,873 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 405 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2018-11-18 14:21:39,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2018-11-18 14:21:39,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1005. [2018-11-18 14:21:39,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1005 states. [2018-11-18 14:21:39,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1205 transitions. [2018-11-18 14:21:39,906 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1205 transitions. Word has length 201 [2018-11-18 14:21:39,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:21:39,906 INFO L480 AbstractCegarLoop]: Abstraction has 1005 states and 1205 transitions. [2018-11-18 14:21:39,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:21:39,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1205 transitions. [2018-11-18 14:21:39,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-11-18 14:21:39,911 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:21:39,911 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 14:21:39,911 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:21:39,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:21:39,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1694056024, now seen corresponding path program 1 times [2018-11-18 14:21:39,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:21:39,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:21:39,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:21:39,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:21:39,913 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:21:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:21:40,072 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:21:40,073 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:21:40,073 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:21:40,073 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-11-18 14:21:40,073 INFO L202 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], [277], [279], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [610], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 14:21:40,076 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:21:40,077 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:21:40,206 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:21:40,206 INFO L272 AbstractInterpreter]: Visited 125 different actions 368 times. Merged at 7 different actions 17 times. Never widened. Performed 3829 root evaluator evaluations with a maximum evaluation depth of 13. Performed 3829 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 14:21:40,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:21:40,214 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:21:40,214 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:21:40,214 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:21:40,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:21:40,220 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:21:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:21:40,272 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:21:40,379 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:21:40,380 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:21:40,541 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:21:40,557 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:21:40,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-18 14:21:40,557 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:21:40,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:21:40,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:21:40,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:21:40,558 INFO L87 Difference]: Start difference. First operand 1005 states and 1205 transitions. Second operand 9 states. [2018-11-18 14:21:41,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:21:41,381 INFO L93 Difference]: Finished difference Result 2545 states and 3381 transitions. [2018-11-18 14:21:41,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 14:21:41,381 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 262 [2018-11-18 14:21:41,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:21:41,389 INFO L225 Difference]: With dead ends: 2545 [2018-11-18 14:21:41,390 INFO L226 Difference]: Without dead ends: 1690 [2018-11-18 14:21:41,393 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 521 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2018-11-18 14:21:41,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2018-11-18 14:21:41,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1636. [2018-11-18 14:21:41,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1636 states. [2018-11-18 14:21:41,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2045 transitions. [2018-11-18 14:21:41,442 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2045 transitions. Word has length 262 [2018-11-18 14:21:41,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:21:41,443 INFO L480 AbstractCegarLoop]: Abstraction has 1636 states and 2045 transitions. [2018-11-18 14:21:41,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:21:41,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2045 transitions. [2018-11-18 14:21:41,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-11-18 14:21:41,448 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:21:41,448 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 14:21:41,449 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:21:41,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:21:41,449 INFO L82 PathProgramCache]: Analyzing trace with hash -827410316, now seen corresponding path program 1 times [2018-11-18 14:21:41,449 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:21:41,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:21:41,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:21:41,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:21:41,450 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:21:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:21:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 81 proven. 46 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-18 14:21:41,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:21:41,629 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:21:41,629 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 285 with the following transitions: [2018-11-18 14:21:41,629 INFO L202 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], [277], [279], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [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], [679], [683], [687], [691], [695], [698], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-18 14:21:41,631 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:21:41,631 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:21:41,765 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:21:41,765 INFO L272 AbstractInterpreter]: Visited 129 different actions 252 times. Merged at 5 different actions 5 times. Never widened. Performed 2603 root evaluator evaluations with a maximum evaluation depth of 15. Performed 2603 inverse root evaluator evaluations with a maximum inverse evaluation depth of 15. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 14:21:41,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:21:41,766 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:21:41,950 INFO L227 lantSequenceWeakener]: Weakened 281 states. On average, predicates are now at 78.1% of their original sizes. [2018-11-18 14:21:41,950 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:21:41,988 INFO L415 sIntCurrentIteration]: We unified 283 AI predicates to 283 [2018-11-18 14:21:41,989 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:21:41,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:21:41,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 14:21:41,989 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:21:41,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:21:41,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:21:41,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:21:41,990 INFO L87 Difference]: Start difference. First operand 1636 states and 2045 transitions. Second operand 10 states. [2018-11-18 14:21:53,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:21:53,570 INFO L93 Difference]: Finished difference Result 3038 states and 3713 transitions. [2018-11-18 14:21:53,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 14:21:53,570 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 284 [2018-11-18 14:21:53,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:21:53,574 INFO L225 Difference]: With dead ends: 3038 [2018-11-18 14:21:53,575 INFO L226 Difference]: Without dead ends: 1577 [2018-11-18 14:21:53,577 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 294 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-18 14:21:53,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2018-11-18 14:21:53,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1520. [2018-11-18 14:21:53,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1520 states. [2018-11-18 14:21:53,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 1742 transitions. [2018-11-18 14:21:53,609 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 1742 transitions. Word has length 284 [2018-11-18 14:21:53,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:21:53,610 INFO L480 AbstractCegarLoop]: Abstraction has 1520 states and 1742 transitions. [2018-11-18 14:21:53,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:21:53,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 1742 transitions. [2018-11-18 14:21:53,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2018-11-18 14:21:53,616 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:21:53,617 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:21:53,617 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:21:53,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:21:53,617 INFO L82 PathProgramCache]: Analyzing trace with hash 619603937, now seen corresponding path program 1 times [2018-11-18 14:21:53,617 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:21:53,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:21:53,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:21:53,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:21:53,618 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:21:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:21:53,879 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2018-11-18 14:21:53,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:21:53,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:21:53,879 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:21:53,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 14:21:53,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:21:53,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:21:53,880 INFO L87 Difference]: Start difference. First operand 1520 states and 1742 transitions. Second operand 4 states. [2018-11-18 14:21:54,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:21:54,279 INFO L93 Difference]: Finished difference Result 1668 states and 1899 transitions. [2018-11-18 14:21:54,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 14:21:54,279 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 340 [2018-11-18 14:21:54,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:21:54,280 INFO L225 Difference]: With dead ends: 1668 [2018-11-18 14:21:54,280 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:21:54,283 INFO L604 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 [2018-11-18 14:21:54,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:21:54,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:21:54,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:21:54,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:21:54,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 340 [2018-11-18 14:21:54,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:21:54,284 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:21:54,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 14:21:54,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:21:54,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:21:54,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:21:54,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:21:54,334 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:21:54,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:21:54,340 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:21:54,351 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:21:54,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:21:54,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:21:54,764 WARN L180 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 59 [2018-11-18 14:21:54,859 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:21:54,860 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a19~0)| ~a19~0) (= |old(~a10~0)| ~a10~0)) [2018-11-18 14:21:54,860 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:21:54,860 INFO L425 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-11-18 14:21:54,860 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,860 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,860 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,860 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,860 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,860 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,860 INFO L425 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-11-18 14:21:54,860 INFO L425 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,861 INFO L425 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-11-18 14:21:54,862 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,863 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-11-18 14:21:54,864 INFO L425 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 14:21:54,865 INFO L425 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-11-18 14:21:54,866 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,867 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-11-18 14:21:54,868 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 14:21:54,869 INFO L425 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-11-18 14:21:54,870 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-11-18 14:21:54,870 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (= |old(~a10~0)| ~a10~0)) (.cse1 (= |old(~a19~0)| ~a19~0)) (.cse2 (not (= 14 ~a4~0))) (.cse3 (not (= 0 ~a12~0))) (.cse4 (not (= 9 |old(~a19~0)|))) (.cse5 (= |calculate_output_#in~input| 0))) (and (or (not (= 8 |old(~a19~0)|)) (= 8 ~a19~0)) (or (not (= 7 |old(~a19~0)|)) (and (= 7 ~a19~0) .cse0)) (or (and .cse1 .cse0) (= 6 |old(~a19~0)|) (< 1 |old(~a10~0)|)) (or (and (= ~a19~0 9) .cse0) .cse2 .cse3 .cse4 .cse5) (or (< 8 |old(~a19~0)|) (= 2 |old(~a10~0)|) (and (not (= ~a10~0 2)) .cse1)) (or (or .cse2 .cse3 (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|))) .cse4 (= ~a1~0 23) .cse5))) [2018-11-18 14:21:54,870 INFO L425 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-11-18 14:21:54,870 INFO L425 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-11-18 14:21:54,870 INFO L425 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-11-18 14:21:54,870 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,870 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,870 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,870 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,870 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,870 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,870 INFO L425 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-11-18 14:21:54,870 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,871 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,872 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-11-18 14:21:54,873 INFO L425 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-11-18 14:21:54,874 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-11-18 14:21:54,874 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:21:54,874 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 9) (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14)) [2018-11-18 14:21:54,874 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:21:54,874 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:21:54,874 INFO L421 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)|)) (not (= 0 |old(~a10~0)|)) (and (= ~a19~0 9) (= ~a1~0 23) (= |old(~a10~0)| ~a10~0))) [2018-11-18 14:21:54,874 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-11-18 14:21:54,874 INFO L421 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (or (= 8 ~a19~0) (not (= 14 ~a4~0)) (and (not (= ~a10~0 2)) (<= ~a19~0 8)) (and (not (= main_~input~0 0)) (= ~a19~0 9)) (not (= 23 |old(~a1~0)|)) (= 7 ~a19~0) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (<= ~a10~0 1) (not (= 0 |old(~a10~0)|))) [2018-11-18 14:21:54,874 INFO L425 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-11-18 14:21:54,874 INFO L425 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-11-18 14:21:54,874 INFO L425 ceAbstractionStarter]: For program point L582-1(lines 582 591) no Hoare annotation was computed. [2018-11-18 14:21:54,874 INFO L421 ceAbstractionStarter]: At program point L582-3(lines 582 591) the Hoare annotation is: (or (= 8 ~a19~0) (= ~a19~0 9) (not (= 14 ~a4~0)) (and (not (= ~a10~0 2)) (<= ~a19~0 8)) (not (= 23 |old(~a1~0)|)) (= 7 ~a19~0) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (<= ~a10~0 1) (not (= 0 |old(~a10~0)|))) [2018-11-18 14:21:54,875 INFO L425 ceAbstractionStarter]: For program point L582-4(lines 576 592) no Hoare annotation was computed. [2018-11-18 14:21:54,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:21:54 BoogieIcfgContainer [2018-11-18 14:21:54,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:21:54,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:21:54,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:21:54,885 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:21:54,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:21:02" (3/4) ... [2018-11-18 14:21:54,888 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:21:54,895 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:21:54,895 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 14:21:54,895 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:21:54,904 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 14:21:54,904 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 14:21:54,929 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((8 == a19 || a19 == 9) || !(14 == a4)) || (!(a10 == 2) && a19 <= 8)) || !(23 == \old(a1))) || 7 == a19) || !(0 == a12)) || !(9 == \old(a19))) || a10 <= 1) || !(0 == \old(a10)) [2018-11-18 14:21:55,000 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_41d91d6d-2d32-47fc-90c4-aa036885c134/bin-2019/utaipan/witness.graphml [2018-11-18 14:21:55,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:21:55,001 INFO L168 Benchmark]: Toolchain (without parser) took 54149.46 ms. Allocated memory was 1.0 GB in the beginning and 4.9 GB in the end (delta: 3.9 GB). Free memory was 956.6 MB in the beginning and 4.2 GB in the end (delta: -3.3 GB). Peak memory consumption was 603.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:21:55,002 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:21:55,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 56.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:21:55,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:21:55,003 INFO L168 Benchmark]: Boogie Preprocessor took 51.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:21:55,003 INFO L168 Benchmark]: RCFGBuilder took 996.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 100.6 MB). Peak memory consumption was 100.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:21:55,003 INFO L168 Benchmark]: TraceAbstraction took 52523.24 ms. Allocated memory was 1.2 GB in the beginning and 4.9 GB in the end (delta: 3.7 GB). Free memory was 1.0 GB in the beginning and 4.2 GB in the end (delta: -3.2 GB). Peak memory consumption was 535.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:21:55,004 INFO L168 Benchmark]: Witness Printer took 115.97 ms. Allocated memory is still 4.9 GB. Free memory was 4.2 GB in the beginning and 4.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-18 14:21:55,005 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 432.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 56.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 996.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 100.6 MB). Peak memory consumption was 100.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 52523.24 ms. Allocated memory was 1.2 GB in the beginning and 4.9 GB in the end (delta: 3.7 GB). Free memory was 1.0 GB in the beginning and 4.2 GB in the end (delta: -3.2 GB). Peak memory consumption was 535.1 MB. Max. memory is 11.5 GB. * Witness Printer took 115.97 ms. Allocated memory is still 4.9 GB. Free memory was 4.2 GB in the beginning and 4.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: 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 Derived loop invariant: ((((((((8 == a19 || a19 == 9) || !(14 == a4)) || (!(a10 == 2) && a19 <= 8)) || !(23 == \old(a1))) || 7 == a19) || !(0 == a12)) || !(9 == \old(a19))) || a10 <= 1) || !(0 == \old(a10)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. SAFE Result, 52.4s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 48.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 554 SDtfs, 4027 SDslu, 1146 SDs, 0 SdLazy, 7204 SolverSat, 1419 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 41.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1399 GetRequests, 1315 SyntacticMatches, 4 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1636occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.8s AbstIntTime, 4 AbstIntIterations, 2 AbstIntStrong, 0.9967516540906631 AbsIntWeakeningRatio, 0.115 AbsIntAvgWeakeningVarsNumRemoved, 13.685 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 150 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 60 PreInvPairs, 100 NumberOfFragments, 245 HoareAnnotationTreeSize, 60 FomulaSimplifications, 2411 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 694 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1715 NumberOfCodeBlocks, 1715 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2168 ConstructedInterpolants, 0 QuantifiedInterpolants, 1333383 SizeOfPredicates, 0 NumberOfNonLiveVariables, 815 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 1516/1610 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...