./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label17_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label17_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/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 2a1f01b3f00839c9ea12a67cb5b63524aacfc6e0 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:48:35,018 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:48:35,019 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:48:35,025 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:48:35,025 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:48:35,026 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:48:35,027 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:48:35,028 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:48:35,029 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:48:35,030 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:48:35,031 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:48:35,031 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:48:35,031 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:48:35,032 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:48:35,033 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:48:35,033 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:48:35,034 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:48:35,035 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:48:35,037 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:48:35,038 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:48:35,039 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:48:35,039 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:48:35,041 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:48:35,041 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:48:35,041 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:48:35,042 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:48:35,043 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:48:35,043 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:48:35,044 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:48:35,044 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:48:35,045 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:48:35,045 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:48:35,045 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:48:35,045 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:48:35,046 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:48:35,046 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:48:35,047 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:48:35,056 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:48:35,057 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:48:35,057 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:48:35,057 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:48:35,058 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:48:35,058 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:48:35,058 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:48:35,058 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:48:35,058 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:48:35,058 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:48:35,058 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:48:35,059 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:48:35,059 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:48:35,059 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:48:35,059 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:48:35,060 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:48:35,060 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:48:35,060 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:48:35,060 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:48:35,060 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:48:35,060 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:48:35,060 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:48:35,061 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:48:35,061 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:48:35,061 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:48:35,061 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:48:35,061 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:48:35,061 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:48:35,062 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:48:35,062 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:48:35,062 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:48:35,062 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:48:35,062 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:48:35,062 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:48:35,062 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:48:35,063 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:48:35,063 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:48:35,063 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_a559d24b-08fc-4b57-a349-7426c487fd00/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 -> 2a1f01b3f00839c9ea12a67cb5b63524aacfc6e0 [2018-11-18 12:48:35,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:48:35,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:48:35,099 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:48:35,100 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:48:35,100 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:48:35,101 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label17_true-unreach-call_false-termination.c [2018-11-18 12:48:35,146 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/data/b7441536d/50e2605c8ad64677bc8864a2361b9275/FLAGf533c355f [2018-11-18 12:48:35,545 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:48:35,545 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/sv-benchmarks/c/eca-rers2012/Problem14_label17_true-unreach-call_false-termination.c [2018-11-18 12:48:35,554 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/data/b7441536d/50e2605c8ad64677bc8864a2361b9275/FLAGf533c355f [2018-11-18 12:48:35,905 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/data/b7441536d/50e2605c8ad64677bc8864a2361b9275 [2018-11-18 12:48:35,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:48:35,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:48:35,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:48:35,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:48:35,911 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:48:35,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:48:35" (1/1) ... [2018-11-18 12:48:35,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da8114e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:35, skipping insertion in model container [2018-11-18 12:48:35,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:48:35" (1/1) ... [2018-11-18 12:48:35,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:48:35,959 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:48:36,232 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:48:36,235 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:48:36,321 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:48:36,330 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:48:36,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:36 WrapperNode [2018-11-18 12:48:36,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:48:36,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:48:36,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:48:36,331 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:48:36,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:36" (1/1) ... [2018-11-18 12:48:36,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:36" (1/1) ... [2018-11-18 12:48:36,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:48:36,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:48:36,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:48:36,404 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:48:36,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:36" (1/1) ... [2018-11-18 12:48:36,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:36" (1/1) ... [2018-11-18 12:48:36,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:36" (1/1) ... [2018-11-18 12:48:36,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:36" (1/1) ... [2018-11-18 12:48:36,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:36" (1/1) ... [2018-11-18 12:48:36,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:36" (1/1) ... [2018-11-18 12:48:36,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:36" (1/1) ... [2018-11-18 12:48:36,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:48:36,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:48:36,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:48:36,459 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:48:36,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/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 12:48:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 12:48:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:48:36,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:48:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 12:48:36,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 12:48:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:48:36,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:48:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:48:36,506 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:48:37,393 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:48:37,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:48:37 BoogieIcfgContainer [2018-11-18 12:48:37,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:48:37,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:48:37,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:48:37,396 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:48:37,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:48:35" (1/3) ... [2018-11-18 12:48:37,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60146537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:48:37, skipping insertion in model container [2018-11-18 12:48:37,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:48:36" (2/3) ... [2018-11-18 12:48:37,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60146537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:48:37, skipping insertion in model container [2018-11-18 12:48:37,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:48:37" (3/3) ... [2018-11-18 12:48:37,399 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label17_true-unreach-call_false-termination.c [2018-11-18 12:48:37,405 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:48:37,411 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:48:37,420 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:48:37,442 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:48:37,442 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:48:37,443 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:48:37,443 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:48:37,443 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:48:37,443 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:48:37,443 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:48:37,443 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:48:37,460 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-11-18 12:48:37,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 12:48:37,466 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:48:37,467 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:48:37,469 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:48:37,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:48:37,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1535437935, now seen corresponding path program 1 times [2018-11-18 12:48:37,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:48:37,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:37,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:48:37,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:37,505 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:48:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:48:37,689 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 12:48:37,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:48:37,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:48:37,691 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:48:37,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:48:37,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:48:37,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:48:37,705 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-11-18 12:48:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:48:38,396 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-11-18 12:48:38,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:48:38,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2018-11-18 12:48:38,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:48:38,410 INFO L225 Difference]: With dead ends: 691 [2018-11-18 12:48:38,410 INFO L226 Difference]: Without dead ends: 434 [2018-11-18 12:48:38,415 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 12:48:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-11-18 12:48:38,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-11-18 12:48:38,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-11-18 12:48:38,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 755 transitions. [2018-11-18 12:48:38,465 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 755 transitions. Word has length 63 [2018-11-18 12:48:38,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:48:38,466 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 755 transitions. [2018-11-18 12:48:38,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:48:38,466 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 755 transitions. [2018-11-18 12:48:38,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-18 12:48:38,469 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:48:38,470 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, 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] [2018-11-18 12:48:38,470 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:48:38,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:48:38,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1025550080, now seen corresponding path program 1 times [2018-11-18 12:48:38,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:48:38,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:38,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:48:38,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:38,472 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:48:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:48:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:48:38,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:48:38,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:48:38,620 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:48:38,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:48:38,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:48:38,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:48:38,622 INFO L87 Difference]: Start difference. First operand 434 states and 755 transitions. Second operand 6 states. [2018-11-18 12:48:39,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:48:39,367 INFO L93 Difference]: Finished difference Result 1254 states and 2256 transitions. [2018-11-18 12:48:39,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:48:39,367 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-11-18 12:48:39,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:48:39,373 INFO L225 Difference]: With dead ends: 1254 [2018-11-18 12:48:39,374 INFO L226 Difference]: Without dead ends: 826 [2018-11-18 12:48:39,376 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:48:39,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2018-11-18 12:48:39,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 812. [2018-11-18 12:48:39,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 812 states. [2018-11-18 12:48:39,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1377 transitions. [2018-11-18 12:48:39,408 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1377 transitions. Word has length 143 [2018-11-18 12:48:39,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:48:39,409 INFO L480 AbstractCegarLoop]: Abstraction has 812 states and 1377 transitions. [2018-11-18 12:48:39,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:48:39,409 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1377 transitions. [2018-11-18 12:48:39,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-11-18 12:48:39,415 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:48:39,416 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:48:39,416 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:48:39,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:48:39,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1017512645, now seen corresponding path program 1 times [2018-11-18 12:48:39,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:48:39,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:39,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:48:39,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:39,418 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:48:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:48:39,516 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:48:39,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:48:39,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 12:48:39,516 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:48:39,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:48:39,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:48:39,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:48:39,517 INFO L87 Difference]: Start difference. First operand 812 states and 1377 transitions. Second operand 4 states. [2018-11-18 12:48:40,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:48:40,423 INFO L93 Difference]: Finished difference Result 1988 states and 3388 transitions. [2018-11-18 12:48:40,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:48:40,424 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 176 [2018-11-18 12:48:40,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:48:40,432 INFO L225 Difference]: With dead ends: 1988 [2018-11-18 12:48:40,432 INFO L226 Difference]: Without dead ends: 1182 [2018-11-18 12:48:40,436 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 12:48:40,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2018-11-18 12:48:40,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1182. [2018-11-18 12:48:40,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1182 states. [2018-11-18 12:48:40,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1751 transitions. [2018-11-18 12:48:40,464 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1751 transitions. Word has length 176 [2018-11-18 12:48:40,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:48:40,465 INFO L480 AbstractCegarLoop]: Abstraction has 1182 states and 1751 transitions. [2018-11-18 12:48:40,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:48:40,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1751 transitions. [2018-11-18 12:48:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-11-18 12:48:40,469 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:48:40,470 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:48:40,470 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:48:40,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:48:40,470 INFO L82 PathProgramCache]: Analyzing trace with hash -234886452, now seen corresponding path program 1 times [2018-11-18 12:48:40,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:48:40,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:40,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:48:40,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:40,471 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:48:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:48:40,734 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:48:40,735 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:48:40,735 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:48:40,735 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:48:40,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:48:40,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:48:40,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:48:40,736 INFO L87 Difference]: Start difference. First operand 1182 states and 1751 transitions. Second operand 6 states. [2018-11-18 12:48:41,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:48:41,916 INFO L93 Difference]: Finished difference Result 3270 states and 4972 transitions. [2018-11-18 12:48:41,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 12:48:41,916 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 229 [2018-11-18 12:48:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:48:41,925 INFO L225 Difference]: With dead ends: 3270 [2018-11-18 12:48:41,925 INFO L226 Difference]: Without dead ends: 2094 [2018-11-18 12:48:41,930 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:48:41,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2018-11-18 12:48:41,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 2013. [2018-11-18 12:48:41,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2013 states. [2018-11-18 12:48:41,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2013 states to 2013 states and 2916 transitions. [2018-11-18 12:48:41,974 INFO L78 Accepts]: Start accepts. Automaton has 2013 states and 2916 transitions. Word has length 229 [2018-11-18 12:48:41,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:48:41,974 INFO L480 AbstractCegarLoop]: Abstraction has 2013 states and 2916 transitions. [2018-11-18 12:48:41,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:48:41,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2013 states and 2916 transitions. [2018-11-18 12:48:41,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-11-18 12:48:41,981 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:48:41,981 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:41,981 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:48:41,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:48:41,981 INFO L82 PathProgramCache]: Analyzing trace with hash -356461826, now seen corresponding path program 1 times [2018-11-18 12:48:41,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:48:41,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:41,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:48:41,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:48:41,982 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:48:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:48:42,769 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 195 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:48:42,770 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:48:42,770 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:48:42,771 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 315 with the following transitions: [2018-11-18 12:48:42,772 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [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], [554], [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], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [878], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:48:42,809 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:48:42,809 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:48:46,047 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 12:48:46,049 INFO L272 AbstractInterpreter]: Visited 174 different actions 341 times. Merged at 4 different actions 4 times. Never widened. Performed 3456 root evaluator evaluations with a maximum evaluation depth of 21. Performed 3456 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 12:48:46,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:48:46,059 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 12:48:47,515 INFO L227 lantSequenceWeakener]: Weakened 311 states. On average, predicates are now at 77.99% of their original sizes. [2018-11-18 12:48:47,515 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 12:48:47,588 INFO L415 sIntCurrentIteration]: We unified 313 AI predicates to 313 [2018-11-18 12:48:47,589 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 12:48:47,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:48:47,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-11-18 12:48:47,590 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:48:47,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 12:48:47,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 12:48:47,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:48:47,591 INFO L87 Difference]: Start difference. First operand 2013 states and 2916 transitions. Second operand 10 states. [2018-11-18 12:49:21,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:49:21,112 INFO L93 Difference]: Finished difference Result 4910 states and 7104 transitions. [2018-11-18 12:49:21,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 12:49:21,112 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 314 [2018-11-18 12:49:21,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:49:21,119 INFO L225 Difference]: With dead ends: 4910 [2018-11-18 12:49:21,119 INFO L226 Difference]: Without dead ends: 2903 [2018-11-18 12:49:21,123 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 322 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-18 12:49:21,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2018-11-18 12:49:21,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2900. [2018-11-18 12:49:21,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2900 states. [2018-11-18 12:49:21,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 3861 transitions. [2018-11-18 12:49:21,161 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 3861 transitions. Word has length 314 [2018-11-18 12:49:21,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:49:21,162 INFO L480 AbstractCegarLoop]: Abstraction has 2900 states and 3861 transitions. [2018-11-18 12:49:21,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 12:49:21,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 3861 transitions. [2018-11-18 12:49:21,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2018-11-18 12:49:21,168 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:49:21,169 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:21,169 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:49:21,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:21,169 INFO L82 PathProgramCache]: Analyzing trace with hash -576713123, now seen corresponding path program 1 times [2018-11-18 12:49:21,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:49:21,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:21,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:49:21,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:21,170 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:49:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:49:21,583 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 375 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:49:21,583 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:49:21,584 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:49:21,584 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 451 with the following transitions: [2018-11-18 12:49:21,584 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [878], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:49:21,588 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:49:21,589 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:49:27,357 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 12:49:27,357 INFO L272 AbstractInterpreter]: Visited 175 different actions 518 times. Merged at 7 different actions 15 times. Never widened. Performed 5398 root evaluator evaluations with a maximum evaluation depth of 21. Performed 5398 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 12:49:27,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:27,362 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 12:49:28,321 INFO L227 lantSequenceWeakener]: Weakened 447 states. On average, predicates are now at 80.46% of their original sizes. [2018-11-18 12:49:28,321 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 12:49:28,365 INFO L415 sIntCurrentIteration]: We unified 449 AI predicates to 449 [2018-11-18 12:49:28,365 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 12:49:28,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:49:28,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2018-11-18 12:49:28,366 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:49:28,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 12:49:28,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 12:49:28,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:49:28,367 INFO L87 Difference]: Start difference. First operand 2900 states and 3861 transitions. Second operand 9 states. [2018-11-18 12:49:38,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:49:38,187 INFO L93 Difference]: Finished difference Result 6256 states and 8545 transitions. [2018-11-18 12:49:38,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 12:49:38,187 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 450 [2018-11-18 12:49:38,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:49:38,194 INFO L225 Difference]: With dead ends: 6256 [2018-11-18 12:49:38,194 INFO L226 Difference]: Without dead ends: 3545 [2018-11-18 12:49:38,198 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 456 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-18 12:49:38,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3545 states. [2018-11-18 12:49:38,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3545 to 3518. [2018-11-18 12:49:38,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3518 states. [2018-11-18 12:49:38,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3518 states to 3518 states and 4654 transitions. [2018-11-18 12:49:38,242 INFO L78 Accepts]: Start accepts. Automaton has 3518 states and 4654 transitions. Word has length 450 [2018-11-18 12:49:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:49:38,243 INFO L480 AbstractCegarLoop]: Abstraction has 3518 states and 4654 transitions. [2018-11-18 12:49:38,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 12:49:38,243 INFO L276 IsEmpty]: Start isEmpty. Operand 3518 states and 4654 transitions. [2018-11-18 12:49:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2018-11-18 12:49:38,250 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:49:38,251 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:38,251 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:49:38,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:38,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1801102749, now seen corresponding path program 1 times [2018-11-18 12:49:38,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:49:38,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:38,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:49:38,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:38,252 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:49:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:49:38,453 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 317 proven. 181 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2018-11-18 12:49:38,453 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:49:38,454 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:49:38,454 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 500 with the following transitions: [2018-11-18 12:49:38,454 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [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], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [878], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:49:38,457 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:49:38,457 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:49:41,988 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:49:41,988 INFO L272 AbstractInterpreter]: Visited 177 different actions 710 times. Merged at 9 different actions 38 times. Never widened. Performed 7427 root evaluator evaluations with a maximum evaluation depth of 21. Performed 7427 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 12:49:41,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:41,995 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:49:41,995 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:49:41,995 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/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 12:49:42,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:49:42,002 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:49:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:49:42,095 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:49:42,299 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 537 proven. 2 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2018-11-18 12:49:42,299 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:49:42,460 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 317 proven. 181 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2018-11-18 12:49:42,476 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:49:42,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-18 12:49:42,476 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:49:42,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 12:49:42,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 12:49:42,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:49:42,477 INFO L87 Difference]: Start difference. First operand 3518 states and 4654 transitions. Second operand 9 states. [2018-11-18 12:49:44,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:49:44,747 INFO L93 Difference]: Finished difference Result 8474 states and 11819 transitions. [2018-11-18 12:49:44,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-18 12:49:44,748 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 499 [2018-11-18 12:49:44,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:49:44,762 INFO L225 Difference]: With dead ends: 8474 [2018-11-18 12:49:44,762 INFO L226 Difference]: Without dead ends: 4961 [2018-11-18 12:49:44,771 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1048 GetRequests, 1015 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2018-11-18 12:49:44,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4961 states. [2018-11-18 12:49:44,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4961 to 4063. [2018-11-18 12:49:44,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4063 states. [2018-11-18 12:49:44,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4063 states to 4063 states and 5128 transitions. [2018-11-18 12:49:44,851 INFO L78 Accepts]: Start accepts. Automaton has 4063 states and 5128 transitions. Word has length 499 [2018-11-18 12:49:44,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:49:44,851 INFO L480 AbstractCegarLoop]: Abstraction has 4063 states and 5128 transitions. [2018-11-18 12:49:44,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 12:49:44,851 INFO L276 IsEmpty]: Start isEmpty. Operand 4063 states and 5128 transitions. [2018-11-18 12:49:44,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2018-11-18 12:49:44,864 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:49:44,865 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:44,865 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:49:44,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:44,865 INFO L82 PathProgramCache]: Analyzing trace with hash -2047477323, now seen corresponding path program 1 times [2018-11-18 12:49:44,865 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:49:44,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:44,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:49:44,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:44,866 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:49:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:49:45,585 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 528 proven. 175 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-18 12:49:45,585 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:49:45,585 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:49:45,585 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 524 with the following transitions: [2018-11-18 12:49:45,586 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [878], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:49:45,588 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:49:45,588 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:49:52,060 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:49:52,061 INFO L272 AbstractInterpreter]: Visited 177 different actions 701 times. Merged at 8 different actions 29 times. Never widened. Performed 7482 root evaluator evaluations with a maximum evaluation depth of 21. Performed 7482 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-18 12:49:52,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:52,066 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:49:52,066 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:49:52,066 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/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 12:49:52,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:49:52,074 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:49:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:49:52,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:49:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 522 proven. 2 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2018-11-18 12:49:52,501 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:49:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 522 proven. 2 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2018-11-18 12:49:52,901 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:49:52,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 12:49:52,901 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:49:52,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 12:49:52,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 12:49:52,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-18 12:49:52,902 INFO L87 Difference]: Start difference. First operand 4063 states and 5128 transitions. Second operand 17 states. [2018-11-18 12:49:55,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:49:55,911 INFO L93 Difference]: Finished difference Result 8887 states and 11613 transitions. [2018-11-18 12:49:55,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-18 12:49:55,911 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 523 [2018-11-18 12:49:55,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:49:55,920 INFO L225 Difference]: With dead ends: 8887 [2018-11-18 12:49:55,920 INFO L226 Difference]: Without dead ends: 4077 [2018-11-18 12:49:55,935 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1104 GetRequests, 1057 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=521, Invalid=1735, Unknown=0, NotChecked=0, Total=2256 [2018-11-18 12:49:55,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2018-11-18 12:49:56,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 3901. [2018-11-18 12:49:56,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3901 states. [2018-11-18 12:49:56,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3901 states to 3901 states and 4656 transitions. [2018-11-18 12:49:56,014 INFO L78 Accepts]: Start accepts. Automaton has 3901 states and 4656 transitions. Word has length 523 [2018-11-18 12:49:56,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:49:56,014 INFO L480 AbstractCegarLoop]: Abstraction has 3901 states and 4656 transitions. [2018-11-18 12:49:56,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 12:49:56,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3901 states and 4656 transitions. [2018-11-18 12:49:56,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2018-11-18 12:49:56,026 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:49:56,027 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:49:56,027 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:49:56,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:49:56,027 INFO L82 PathProgramCache]: Analyzing trace with hash -68520044, now seen corresponding path program 1 times [2018-11-18 12:49:56,028 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:49:56,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:56,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:49:56,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:49:56,028 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:49:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:49:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 458 proven. 375 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-18 12:49:56,826 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:49:56,826 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:49:56,826 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 631 with the following transitions: [2018-11-18 12:49:56,827 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [878], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:49:56,829 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:49:56,829 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:50:03,325 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:50:03,326 INFO L272 AbstractInterpreter]: Visited 191 different actions 763 times. Merged at 9 different actions 35 times. Widened at 1 different actions 1 times. Performed 8319 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8319 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 12:50:03,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:03,329 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:50:03,329 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:50:03,329 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:50:03,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:03,335 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:50:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:03,408 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:50:03,619 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 776 proven. 2 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2018-11-18 12:50:03,619 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:50:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 456 proven. 165 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-11-18 12:50:04,023 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:50:04,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 20 [2018-11-18 12:50:04,023 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:50:04,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 12:50:04,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 12:50:04,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2018-11-18 12:50:04,024 INFO L87 Difference]: Start difference. First operand 3901 states and 4656 transitions. Second operand 17 states. [2018-11-18 12:50:07,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:07,818 INFO L93 Difference]: Finished difference Result 8782 states and 10881 transitions. [2018-11-18 12:50:07,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-11-18 12:50:07,818 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 630 [2018-11-18 12:50:07,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:07,827 INFO L225 Difference]: With dead ends: 8782 [2018-11-18 12:50:07,827 INFO L226 Difference]: Without dead ends: 4515 [2018-11-18 12:50:07,836 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1352 GetRequests, 1290 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1098 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=842, Invalid=3190, Unknown=0, NotChecked=0, Total=4032 [2018-11-18 12:50:07,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4515 states. [2018-11-18 12:50:07,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4515 to 4359. [2018-11-18 12:50:07,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4359 states. [2018-11-18 12:50:07,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4359 states to 4359 states and 5007 transitions. [2018-11-18 12:50:07,888 INFO L78 Accepts]: Start accepts. Automaton has 4359 states and 5007 transitions. Word has length 630 [2018-11-18 12:50:07,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:07,889 INFO L480 AbstractCegarLoop]: Abstraction has 4359 states and 5007 transitions. [2018-11-18 12:50:07,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 12:50:07,889 INFO L276 IsEmpty]: Start isEmpty. Operand 4359 states and 5007 transitions. [2018-11-18 12:50:07,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2018-11-18 12:50:07,896 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:07,897 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 12:50:07,897 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:07,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:07,897 INFO L82 PathProgramCache]: Analyzing trace with hash 2002336856, now seen corresponding path program 2 times [2018-11-18 12:50:07,897 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:07,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:07,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:50:07,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:07,898 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:08,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1441 backedges. 631 proven. 165 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2018-11-18 12:50:08,217 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:50:08,218 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:50:08,218 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 12:50:08,218 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 12:50:08,218 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:50:08,218 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:50:08,273 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 12:50:08,273 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 12:50:08,341 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 12:50:08,341 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:50:08,350 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:50:22,351 WARN L180 SmtUtils]: Spent 13.81 s on a formula simplification. DAG size of input: 530 DAG size of output: 63 [2018-11-18 12:50:43,025 WARN L180 SmtUtils]: Spent 20.61 s on a formula simplification. DAG size of input: 83 DAG size of output: 50 [2018-11-18 12:50:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1441 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 1149 trivial. 0 not checked. [2018-11-18 12:50:44,912 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:50:45,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1441 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 1149 trivial. 0 not checked. [2018-11-18 12:50:45,202 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:50:45,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [6] total 10 [2018-11-18 12:50:45,202 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:50:45,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:50:45,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:50:45,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:50:45,203 INFO L87 Difference]: Start difference. First operand 4359 states and 5007 transitions. Second operand 4 states. [2018-11-18 12:50:57,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:50:57,249 INFO L93 Difference]: Finished difference Result 10559 states and 12488 transitions. [2018-11-18 12:50:57,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:50:57,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 741 [2018-11-18 12:50:57,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:50:57,266 INFO L225 Difference]: With dead ends: 10559 [2018-11-18 12:50:57,266 INFO L226 Difference]: Without dead ends: 6574 [2018-11-18 12:50:57,272 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1487 GetRequests, 1432 SyntacticMatches, 47 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 36.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:50:57,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6574 states. [2018-11-18 12:50:57,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6574 to 6544. [2018-11-18 12:50:57,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6544 states. [2018-11-18 12:50:57,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6544 states to 6544 states and 7428 transitions. [2018-11-18 12:50:57,368 INFO L78 Accepts]: Start accepts. Automaton has 6544 states and 7428 transitions. Word has length 741 [2018-11-18 12:50:57,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:50:57,369 INFO L480 AbstractCegarLoop]: Abstraction has 6544 states and 7428 transitions. [2018-11-18 12:50:57,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:50:57,369 INFO L276 IsEmpty]: Start isEmpty. Operand 6544 states and 7428 transitions. [2018-11-18 12:50:57,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2018-11-18 12:50:57,381 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:50:57,381 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:50:57,381 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:50:57,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:57,382 INFO L82 PathProgramCache]: Analyzing trace with hash -623874549, now seen corresponding path program 1 times [2018-11-18 12:50:57,382 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:50:57,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:57,384 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:50:57,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:50:57,384 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:50:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:57,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1883 backedges. 702 proven. 228 refuted. 0 times theorem prover too weak. 953 trivial. 0 not checked. [2018-11-18 12:50:57,857 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:50:57,858 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:50:57,858 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 808 with the following transitions: [2018-11-18 12:50:57,858 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:50:57,860 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:50:57,860 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:51:01,901 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:51:01,901 INFO L272 AbstractInterpreter]: Visited 192 different actions 768 times. Merged at 10 different actions 36 times. Widened at 1 different actions 1 times. Performed 8301 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8301 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 12:51:01,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:01,903 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:51:01,903 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:01,903 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:51:01,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:01,909 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:51:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:02,011 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:51:02,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1883 backedges. 1362 proven. 2 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2018-11-18 12:51:02,218 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:51:02,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1883 backedges. 702 proven. 228 refuted. 0 times theorem prover too weak. 953 trivial. 0 not checked. [2018-11-18 12:51:02,520 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:51:02,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 12:51:02,520 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:51:02,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:51:02,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:51:02,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:51:02,522 INFO L87 Difference]: Start difference. First operand 6544 states and 7428 transitions. Second operand 7 states. [2018-11-18 12:51:03,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:51:03,912 INFO L93 Difference]: Finished difference Result 17104 states and 21348 transitions. [2018-11-18 12:51:03,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:51:03,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 807 [2018-11-18 12:51:03,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:51:03,940 INFO L225 Difference]: With dead ends: 17104 [2018-11-18 12:51:03,940 INFO L226 Difference]: Without dead ends: 10603 [2018-11-18 12:51:03,954 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1628 GetRequests, 1615 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 12:51:03,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2018-11-18 12:51:04,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 10405. [2018-11-18 12:51:04,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10405 states. [2018-11-18 12:51:04,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10405 states to 10405 states and 12020 transitions. [2018-11-18 12:51:04,079 INFO L78 Accepts]: Start accepts. Automaton has 10405 states and 12020 transitions. Word has length 807 [2018-11-18 12:51:04,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:51:04,079 INFO L480 AbstractCegarLoop]: Abstraction has 10405 states and 12020 transitions. [2018-11-18 12:51:04,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:51:04,080 INFO L276 IsEmpty]: Start isEmpty. Operand 10405 states and 12020 transitions. [2018-11-18 12:51:04,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 815 [2018-11-18 12:51:04,090 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:51:04,090 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 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 12:51:04,090 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:51:04,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:04,091 INFO L82 PathProgramCache]: Analyzing trace with hash -700908830, now seen corresponding path program 1 times [2018-11-18 12:51:04,091 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:51:04,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:04,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:04,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:04,091 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:51:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:04,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 709 proven. 228 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked. [2018-11-18 12:51:04,446 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:04,446 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:51:04,448 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 815 with the following transitions: [2018-11-18 12:51:04,448 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:51:04,450 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:51:04,450 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:51:08,500 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:51:08,500 INFO L272 AbstractInterpreter]: Visited 193 different actions 775 times. Merged at 11 different actions 39 times. Widened at 1 different actions 1 times. Performed 8453 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8453 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-18 12:51:08,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:08,502 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:51:08,502 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:08,502 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:51:08,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:08,511 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:51:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:08,599 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:51:08,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 1376 proven. 2 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2018-11-18 12:51:08,802 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:51:09,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 709 proven. 228 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked. [2018-11-18 12:51:09,130 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:51:09,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 12:51:09,130 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:51:09,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:51:09,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:51:09,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:51:09,132 INFO L87 Difference]: Start difference. First operand 10405 states and 12020 transitions. Second operand 7 states. [2018-11-18 12:51:11,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:51:11,659 INFO L93 Difference]: Finished difference Result 24178 states and 31788 transitions. [2018-11-18 12:51:11,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:51:11,660 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 814 [2018-11-18 12:51:11,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:51:11,711 INFO L225 Difference]: With dead ends: 24178 [2018-11-18 12:51:11,711 INFO L226 Difference]: Without dead ends: 14147 [2018-11-18 12:51:11,755 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1643 GetRequests, 1630 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 12:51:11,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14147 states. [2018-11-18 12:51:11,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14147 to 13607. [2018-11-18 12:51:11,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13607 states. [2018-11-18 12:51:12,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13607 states to 13607 states and 15921 transitions. [2018-11-18 12:51:12,017 INFO L78 Accepts]: Start accepts. Automaton has 13607 states and 15921 transitions. Word has length 814 [2018-11-18 12:51:12,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:51:12,017 INFO L480 AbstractCegarLoop]: Abstraction has 13607 states and 15921 transitions. [2018-11-18 12:51:12,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:51:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 13607 states and 15921 transitions. [2018-11-18 12:51:12,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 860 [2018-11-18 12:51:12,033 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:51:12,033 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 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] [2018-11-18 12:51:12,033 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:51:12,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:12,033 INFO L82 PathProgramCache]: Analyzing trace with hash -582538701, now seen corresponding path program 1 times [2018-11-18 12:51:12,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:51:12,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:12,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:12,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:12,034 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:51:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:13,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1976 backedges. 708 proven. 893 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2018-11-18 12:51:13,146 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:13,146 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:51:13,146 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 860 with the following transitions: [2018-11-18 12:51:13,146 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:51:13,149 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:51:13,149 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:51:17,224 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:51:17,224 INFO L272 AbstractInterpreter]: Visited 193 different actions 776 times. Merged at 11 different actions 40 times. Widened at 1 different actions 1 times. Performed 8444 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8444 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-18 12:51:17,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:17,227 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:51:17,228 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:17,228 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:51:17,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:17,234 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:51:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:17,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:51:17,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1976 backedges. 1455 proven. 2 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2018-11-18 12:51:17,760 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:51:18,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1976 backedges. 754 proven. 228 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2018-11-18 12:51:18,170 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:51:18,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 19 [2018-11-18 12:51:18,170 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:51:18,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 12:51:18,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 12:51:18,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2018-11-18 12:51:18,171 INFO L87 Difference]: Start difference. First operand 13607 states and 15921 transitions. Second operand 17 states. [2018-11-18 12:51:21,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:51:21,077 INFO L93 Difference]: Finished difference Result 31740 states and 38495 transitions. [2018-11-18 12:51:21,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-11-18 12:51:21,078 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 859 [2018-11-18 12:51:21,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:51:21,125 INFO L225 Difference]: With dead ends: 31740 [2018-11-18 12:51:21,125 INFO L226 Difference]: Without dead ends: 18322 [2018-11-18 12:51:21,169 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1788 GetRequests, 1739 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=549, Invalid=2001, Unknown=0, NotChecked=0, Total=2550 [2018-11-18 12:51:21,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18322 states. [2018-11-18 12:51:21,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18322 to 18268. [2018-11-18 12:51:21,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18268 states. [2018-11-18 12:51:21,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18268 states to 18268 states and 21520 transitions. [2018-11-18 12:51:21,397 INFO L78 Accepts]: Start accepts. Automaton has 18268 states and 21520 transitions. Word has length 859 [2018-11-18 12:51:21,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:51:21,398 INFO L480 AbstractCegarLoop]: Abstraction has 18268 states and 21520 transitions. [2018-11-18 12:51:21,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 12:51:21,398 INFO L276 IsEmpty]: Start isEmpty. Operand 18268 states and 21520 transitions. [2018-11-18 12:51:21,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 975 [2018-11-18 12:51:21,413 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:51:21,414 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2018-11-18 12:51:21,414 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:51:21,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:21,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1171781263, now seen corresponding path program 1 times [2018-11-18 12:51:21,415 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:51:21,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:21,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:21,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:21,415 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:51:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2684 backedges. 938 proven. 228 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2018-11-18 12:51:22,124 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:22,124 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:51:22,125 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 975 with the following transitions: [2018-11-18 12:51:22,125 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [854], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:51:22,127 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:51:22,127 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:51:26,184 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:51:26,184 INFO L272 AbstractInterpreter]: Visited 194 different actions 772 times. Merged at 10 different actions 32 times. Never widened. Performed 8433 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8433 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-18 12:51:26,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:26,186 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:51:26,186 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:26,186 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:51:26,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:26,193 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:51:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:26,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:51:26,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2684 backedges. 1827 proven. 2 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2018-11-18 12:51:26,556 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:51:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2684 backedges. 938 proven. 228 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2018-11-18 12:51:26,956 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:51:26,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 12:51:26,957 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:51:26,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:51:26,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:51:26,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:51:26,958 INFO L87 Difference]: Start difference. First operand 18268 states and 21520 transitions. Second operand 7 states. [2018-11-18 12:51:27,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:51:27,841 INFO L93 Difference]: Finished difference Result 35577 states and 42019 transitions. [2018-11-18 12:51:27,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:51:27,841 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 974 [2018-11-18 12:51:27,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:51:27,872 INFO L225 Difference]: With dead ends: 35577 [2018-11-18 12:51:27,872 INFO L226 Difference]: Without dead ends: 17683 [2018-11-18 12:51:27,905 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1962 GetRequests, 1949 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 12:51:27,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17683 states. [2018-11-18 12:51:28,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17683 to 17125. [2018-11-18 12:51:28,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17125 states. [2018-11-18 12:51:28,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17125 states to 17125 states and 19452 transitions. [2018-11-18 12:51:28,088 INFO L78 Accepts]: Start accepts. Automaton has 17125 states and 19452 transitions. Word has length 974 [2018-11-18 12:51:28,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:51:28,089 INFO L480 AbstractCegarLoop]: Abstraction has 17125 states and 19452 transitions. [2018-11-18 12:51:28,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:51:28,089 INFO L276 IsEmpty]: Start isEmpty. Operand 17125 states and 19452 transitions. [2018-11-18 12:51:28,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1070 [2018-11-18 12:51:28,106 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:51:28,106 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 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] [2018-11-18 12:51:28,106 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:51:28,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:28,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1638994311, now seen corresponding path program 1 times [2018-11-18 12:51:28,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:51:28,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:28,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:28,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:28,108 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:51:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:29,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3297 backedges. 850 proven. 1425 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2018-11-18 12:51:29,740 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:29,740 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:51:29,741 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1070 with the following transitions: [2018-11-18 12:51:29,741 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:51:29,743 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:51:29,743 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:51:33,789 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:51:33,789 INFO L272 AbstractInterpreter]: Visited 195 different actions 786 times. Merged at 11 different actions 42 times. Widened at 1 different actions 1 times. Performed 8593 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8593 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 6 different actions. Largest state had 24 variables. [2018-11-18 12:51:33,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:33,790 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:51:33,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:33,790 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:51:33,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:33,797 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:51:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:33,914 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:51:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3297 backedges. 2199 proven. 2 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2018-11-18 12:51:34,236 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:51:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3297 backedges. 851 proven. 477 refuted. 0 times theorem prover too weak. 1969 trivial. 0 not checked. [2018-11-18 12:51:34,883 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:51:34,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-11-18 12:51:34,883 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:51:34,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 12:51:34,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 12:51:34,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-11-18 12:51:34,884 INFO L87 Difference]: Start difference. First operand 17125 states and 19452 transitions. Second operand 18 states. [2018-11-18 12:51:38,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:51:38,460 INFO L93 Difference]: Finished difference Result 32350 states and 36893 transitions. [2018-11-18 12:51:38,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-11-18 12:51:38,460 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1069 [2018-11-18 12:51:38,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:51:38,483 INFO L225 Difference]: With dead ends: 32350 [2018-11-18 12:51:38,483 INFO L226 Difference]: Without dead ends: 12487 [2018-11-18 12:51:38,506 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2221 GetRequests, 2161 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=749, Invalid=3033, Unknown=0, NotChecked=0, Total=3782 [2018-11-18 12:51:38,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12487 states. [2018-11-18 12:51:38,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12487 to 12240. [2018-11-18 12:51:38,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12240 states. [2018-11-18 12:51:38,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12240 states to 12240 states and 13478 transitions. [2018-11-18 12:51:38,627 INFO L78 Accepts]: Start accepts. Automaton has 12240 states and 13478 transitions. Word has length 1069 [2018-11-18 12:51:38,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:51:38,628 INFO L480 AbstractCegarLoop]: Abstraction has 12240 states and 13478 transitions. [2018-11-18 12:51:38,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 12:51:38,628 INFO L276 IsEmpty]: Start isEmpty. Operand 12240 states and 13478 transitions. [2018-11-18 12:51:38,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1115 [2018-11-18 12:51:38,647 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:51:38,647 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 12:51:38,647 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:51:38,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:38,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1679110408, now seen corresponding path program 1 times [2018-11-18 12:51:38,648 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:51:38,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:38,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:38,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:38,649 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:51:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:39,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3421 backedges. 1527 proven. 230 refuted. 0 times theorem prover too weak. 1664 trivial. 0 not checked. [2018-11-18 12:51:39,347 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:39,347 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:51:39,348 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1115 with the following transitions: [2018-11-18 12:51:39,348 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:51:39,350 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:51:39,350 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:51:43,461 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:51:43,461 INFO L272 AbstractInterpreter]: Visited 195 different actions 784 times. Merged at 11 different actions 40 times. Widened at 1 different actions 1 times. Performed 8565 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8565 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 6 different actions. Largest state had 24 variables. [2018-11-18 12:51:43,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:43,466 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:51:43,466 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:43,466 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:51:43,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:43,472 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:51:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:43,588 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:51:43,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3421 backedges. 2274 proven. 6 refuted. 0 times theorem prover too weak. 1141 trivial. 0 not checked. [2018-11-18 12:51:43,954 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:51:44,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3421 backedges. 1527 proven. 303 refuted. 0 times theorem prover too weak. 1591 trivial. 0 not checked. [2018-11-18 12:51:44,514 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:51:44,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-11-18 12:51:44,515 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:51:44,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 12:51:44,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 12:51:44,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-11-18 12:51:44,516 INFO L87 Difference]: Start difference. First operand 12240 states and 13478 transitions. Second operand 9 states. [2018-11-18 12:51:45,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:51:45,968 INFO L93 Difference]: Finished difference Result 26133 states and 28917 transitions. [2018-11-18 12:51:45,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 12:51:45,969 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1114 [2018-11-18 12:51:45,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:51:45,987 INFO L225 Difference]: With dead ends: 26133 [2018-11-18 12:51:45,987 INFO L226 Difference]: Without dead ends: 14267 [2018-11-18 12:51:46,001 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2245 GetRequests, 2226 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2018-11-18 12:51:46,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14267 states. [2018-11-18 12:51:46,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14267 to 13823. [2018-11-18 12:51:46,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13823 states. [2018-11-18 12:51:46,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13823 states to 13823 states and 15285 transitions. [2018-11-18 12:51:46,142 INFO L78 Accepts]: Start accepts. Automaton has 13823 states and 15285 transitions. Word has length 1114 [2018-11-18 12:51:46,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:51:46,143 INFO L480 AbstractCegarLoop]: Abstraction has 13823 states and 15285 transitions. [2018-11-18 12:51:46,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 12:51:46,143 INFO L276 IsEmpty]: Start isEmpty. Operand 13823 states and 15285 transitions. [2018-11-18 12:51:46,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2018-11-18 12:51:46,154 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:51:46,154 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 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] [2018-11-18 12:51:46,154 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:51:46,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:46,154 INFO L82 PathProgramCache]: Analyzing trace with hash -121067439, now seen corresponding path program 1 times [2018-11-18 12:51:46,154 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:51:46,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:46,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:46,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:46,155 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:51:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:48,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3614 backedges. 1131 proven. 1766 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2018-11-18 12:51:48,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:48,183 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:51:48,183 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1148 with the following transitions: [2018-11-18 12:51:48,183 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [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], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:51:48,185 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:51:48,185 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:51:55,439 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:51:55,439 INFO L272 AbstractInterpreter]: Visited 195 different actions 783 times. Merged at 11 different actions 39 times. Widened at 1 different actions 1 times. Performed 8615 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8615 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 14 fixpoints after 7 different actions. Largest state had 24 variables. [2018-11-18 12:51:55,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:55,442 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:51:55,442 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:51:55,442 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:51:55,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:55,449 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:51:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:51:55,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:51:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3614 backedges. 1908 proven. 2 refuted. 0 times theorem prover too weak. 1704 trivial. 0 not checked. [2018-11-18 12:51:55,939 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:51:56,508 INFO L134 CoverageAnalysis]: Checked inductivity of 3614 backedges. 1128 proven. 112 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2018-11-18 12:51:56,524 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:51:56,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 19 [2018-11-18 12:51:56,525 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:51:56,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 12:51:56,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 12:51:56,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-11-18 12:51:56,526 INFO L87 Difference]: Start difference. First operand 13823 states and 15285 transitions. Second operand 18 states. [2018-11-18 12:51:58,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:51:58,786 INFO L93 Difference]: Finished difference Result 27328 states and 30302 transitions. [2018-11-18 12:51:58,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-11-18 12:51:58,786 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1147 [2018-11-18 12:51:58,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:51:58,798 INFO L225 Difference]: With dead ends: 27328 [2018-11-18 12:51:58,798 INFO L226 Difference]: Without dead ends: 10584 [2018-11-18 12:51:58,816 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2368 GetRequests, 2317 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=484, Invalid=1868, Unknown=0, NotChecked=0, Total=2352 [2018-11-18 12:51:58,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10584 states. [2018-11-18 12:51:58,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10584 to 9410. [2018-11-18 12:51:58,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9410 states. [2018-11-18 12:51:58,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9410 states to 9410 states and 10028 transitions. [2018-11-18 12:51:58,905 INFO L78 Accepts]: Start accepts. Automaton has 9410 states and 10028 transitions. Word has length 1147 [2018-11-18 12:51:58,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:51:58,906 INFO L480 AbstractCegarLoop]: Abstraction has 9410 states and 10028 transitions. [2018-11-18 12:51:58,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 12:51:58,906 INFO L276 IsEmpty]: Start isEmpty. Operand 9410 states and 10028 transitions. [2018-11-18 12:51:58,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1267 [2018-11-18 12:51:58,915 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:51:58,915 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:51:58,915 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:51:58,916 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:51:58,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1956562157, now seen corresponding path program 1 times [2018-11-18 12:51:58,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:51:58,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:58,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:51:58,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:51:58,917 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:51:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:52:00,263 INFO L134 CoverageAnalysis]: Checked inductivity of 4557 backedges. 1296 proven. 860 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2018-11-18 12:52:00,264 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:52:00,264 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:52:00,264 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1267 with the following transitions: [2018-11-18 12:52:00,264 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [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], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:52:00,266 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:52:00,267 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:52:07,581 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:52:07,581 INFO L272 AbstractInterpreter]: Visited 196 different actions 787 times. Merged at 11 different actions 39 times. Widened at 1 different actions 1 times. Performed 8740 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8740 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 15 fixpoints after 8 different actions. Largest state had 24 variables. [2018-11-18 12:52:07,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:52:07,586 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:52:07,586 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:52:07,586 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:52:07,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:52:07,592 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:52:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:52:07,721 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:52:08,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4557 backedges. 2199 proven. 2 refuted. 0 times theorem prover too weak. 2356 trivial. 0 not checked. [2018-11-18 12:52:08,204 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:52:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4557 backedges. 1305 proven. 112 refuted. 0 times theorem prover too weak. 3140 trivial. 0 not checked. [2018-11-18 12:52:09,162 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:52:09,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 12:52:09,163 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:52:09,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 12:52:09,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 12:52:09,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-11-18 12:52:09,163 INFO L87 Difference]: Start difference. First operand 9410 states and 10028 transitions. Second operand 17 states. [2018-11-18 12:52:11,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:52:11,944 INFO L93 Difference]: Finished difference Result 18707 states and 19977 transitions. [2018-11-18 12:52:11,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-18 12:52:11,945 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1266 [2018-11-18 12:52:11,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:52:11,954 INFO L225 Difference]: With dead ends: 18707 [2018-11-18 12:52:11,954 INFO L226 Difference]: Without dead ends: 9004 [2018-11-18 12:52:11,962 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2595 GetRequests, 2549 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2018-11-18 12:52:11,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9004 states. [2018-11-18 12:52:12,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9004 to 8560. [2018-11-18 12:52:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8560 states. [2018-11-18 12:52:12,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 9081 transitions. [2018-11-18 12:52:12,034 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 9081 transitions. Word has length 1266 [2018-11-18 12:52:12,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:52:12,035 INFO L480 AbstractCegarLoop]: Abstraction has 8560 states and 9081 transitions. [2018-11-18 12:52:12,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 12:52:12,035 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 9081 transitions. [2018-11-18 12:52:12,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1591 [2018-11-18 12:52:12,051 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:52:12,051 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:52:12,051 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:52:12,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:52:12,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1324865081, now seen corresponding path program 1 times [2018-11-18 12:52:12,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:52:12,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:52:12,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:52:12,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:52:12,052 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:52:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:52:13,829 INFO L134 CoverageAnalysis]: Checked inductivity of 7107 backedges. 1650 proven. 1084 refuted. 0 times theorem prover too weak. 4373 trivial. 0 not checked. [2018-11-18 12:52:13,829 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:52:13,829 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:52:13,829 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1591 with the following transitions: [2018-11-18 12:52:13,829 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [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], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:52:13,831 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:52:13,832 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:52:21,120 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:52:21,120 INFO L272 AbstractInterpreter]: Visited 201 different actions 807 times. Merged at 11 different actions 39 times. Widened at 1 different actions 1 times. Performed 8964 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8964 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 17 fixpoints after 9 different actions. Largest state had 24 variables. [2018-11-18 12:52:21,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:52:21,123 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:52:21,123 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:52:21,123 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:52:21,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:52:21,129 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:52:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:52:21,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:52:22,030 INFO L134 CoverageAnalysis]: Checked inductivity of 7107 backedges. 2836 proven. 2 refuted. 0 times theorem prover too weak. 4269 trivial. 0 not checked. [2018-11-18 12:52:22,030 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:52:23,272 INFO L134 CoverageAnalysis]: Checked inductivity of 7107 backedges. 1659 proven. 112 refuted. 0 times theorem prover too weak. 5336 trivial. 0 not checked. [2018-11-18 12:52:23,288 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:52:23,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 12:52:23,289 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:52:23,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 12:52:23,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 12:52:23,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-11-18 12:52:23,290 INFO L87 Difference]: Start difference. First operand 8560 states and 9081 transitions. Second operand 17 states. [2018-11-18 12:52:26,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:52:26,279 INFO L93 Difference]: Finished difference Result 17373 states and 18466 transitions. [2018-11-18 12:52:26,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-11-18 12:52:26,279 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1590 [2018-11-18 12:52:26,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:52:26,288 INFO L225 Difference]: With dead ends: 17373 [2018-11-18 12:52:26,288 INFO L226 Difference]: Without dead ends: 8094 [2018-11-18 12:52:26,296 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3254 GetRequests, 3201 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=562, Invalid=2300, Unknown=0, NotChecked=0, Total=2862 [2018-11-18 12:52:26,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8094 states. [2018-11-18 12:52:26,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8094 to 7648. [2018-11-18 12:52:26,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7648 states. [2018-11-18 12:52:26,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7648 states to 7648 states and 8038 transitions. [2018-11-18 12:52:26,369 INFO L78 Accepts]: Start accepts. Automaton has 7648 states and 8038 transitions. Word has length 1590 [2018-11-18 12:52:26,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:52:26,369 INFO L480 AbstractCegarLoop]: Abstraction has 7648 states and 8038 transitions. [2018-11-18 12:52:26,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 12:52:26,370 INFO L276 IsEmpty]: Start isEmpty. Operand 7648 states and 8038 transitions. [2018-11-18 12:52:26,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1770 [2018-11-18 12:52:26,385 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:52:26,386 INFO L375 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:52:26,386 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:52:26,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:52:26,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1840573619, now seen corresponding path program 1 times [2018-11-18 12:52:26,387 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:52:26,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:52:26,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:52:26,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:52:26,387 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:52:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:52:28,565 INFO L134 CoverageAnalysis]: Checked inductivity of 8685 backedges. 1856 proven. 2207 refuted. 0 times theorem prover too weak. 4622 trivial. 0 not checked. [2018-11-18 12:52:28,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:52:28,565 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:52:28,565 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1770 with the following transitions: [2018-11-18 12:52:28,565 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [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], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [930], [931], [934], [935], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:52:28,568 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:52:28,568 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:52:35,941 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:52:35,942 INFO L272 AbstractInterpreter]: Visited 202 different actions 814 times. Merged at 12 different actions 42 times. Widened at 1 different actions 1 times. Performed 9030 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9030 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 18 fixpoints after 10 different actions. Largest state had 24 variables. [2018-11-18 12:52:35,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:52:35,946 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:52:35,946 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:52:35,946 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:52:35,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:52:35,953 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:52:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:52:36,142 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:52:36,998 INFO L134 CoverageAnalysis]: Checked inductivity of 8685 backedges. 3160 proven. 2 refuted. 0 times theorem prover too weak. 5523 trivial. 0 not checked. [2018-11-18 12:52:36,998 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:52:38,503 INFO L134 CoverageAnalysis]: Checked inductivity of 8685 backedges. 1836 proven. 112 refuted. 0 times theorem prover too weak. 6737 trivial. 0 not checked. [2018-11-18 12:52:38,519 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:52:38,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-11-18 12:52:38,520 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:52:38,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 12:52:38,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 12:52:38,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2018-11-18 12:52:38,521 INFO L87 Difference]: Start difference. First operand 7648 states and 8038 transitions. Second operand 18 states. [2018-11-18 12:52:41,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:52:41,613 INFO L93 Difference]: Finished difference Result 16330 states and 17543 transitions. [2018-11-18 12:52:41,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-11-18 12:52:41,614 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1769 [2018-11-18 12:52:41,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:52:41,623 INFO L225 Difference]: With dead ends: 16330 [2018-11-18 12:52:41,623 INFO L226 Difference]: Without dead ends: 7634 [2018-11-18 12:52:41,633 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3627 GetRequests, 3567 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=751, Invalid=2909, Unknown=0, NotChecked=0, Total=3660 [2018-11-18 12:52:41,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7634 states. [2018-11-18 12:52:41,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7634 to 7083. [2018-11-18 12:52:41,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7083 states. [2018-11-18 12:52:41,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7083 states to 7083 states and 7341 transitions. [2018-11-18 12:52:41,699 INFO L78 Accepts]: Start accepts. Automaton has 7083 states and 7341 transitions. Word has length 1769 [2018-11-18 12:52:41,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:52:41,699 INFO L480 AbstractCegarLoop]: Abstraction has 7083 states and 7341 transitions. [2018-11-18 12:52:41,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 12:52:41,699 INFO L276 IsEmpty]: Start isEmpty. Operand 7083 states and 7341 transitions. [2018-11-18 12:52:41,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1810 [2018-11-18 12:52:41,713 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:52:41,714 INFO L375 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-11-18 12:52:41,714 INFO L423 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:52:41,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:52:41,714 INFO L82 PathProgramCache]: Analyzing trace with hash 2025491540, now seen corresponding path program 1 times [2018-11-18 12:52:41,714 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:52:41,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:52:41,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:52:41,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:52:41,715 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:52:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:52:44,172 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 2029 proven. 2369 refuted. 0 times theorem prover too weak. 5262 trivial. 0 not checked. [2018-11-18 12:52:44,173 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:52:44,173 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:52:44,173 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1810 with the following transitions: [2018-11-18 12:52:44,173 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [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], [634], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [670], [671], [675], [679], [683], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 12:52:44,175 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:52:44,175 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:52:51,396 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 12:52:51,397 INFO L272 AbstractInterpreter]: Visited 203 different actions 818 times. Merged at 12 different actions 42 times. Widened at 1 different actions 1 times. Performed 9085 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9085 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 19 fixpoints after 11 different actions. Largest state had 24 variables. [2018-11-18 12:52:51,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:52:51,398 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 12:52:51,398 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:52:51,398 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:52:51,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:52:51,405 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 12:52:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:52:51,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:52:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 4303 proven. 6 refuted. 0 times theorem prover too weak. 5351 trivial. 0 not checked. [2018-11-18 12:52:52,422 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:52:53,916 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 2919 proven. 214 refuted. 0 times theorem prover too weak. 6527 trivial. 0 not checked. [2018-11-18 12:52:53,932 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 12:52:53,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2018-11-18 12:52:53,933 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 12:52:53,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 12:52:53,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 12:52:53,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2018-11-18 12:52:53,934 INFO L87 Difference]: Start difference. First operand 7083 states and 7341 transitions. Second operand 16 states. [2018-11-18 12:52:57,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:52:57,110 INFO L93 Difference]: Finished difference Result 14091 states and 14833 transitions. [2018-11-18 12:52:57,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-11-18 12:52:57,110 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1809 [2018-11-18 12:52:57,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:52:57,119 INFO L225 Difference]: With dead ends: 14091 [2018-11-18 12:52:57,119 INFO L226 Difference]: Without dead ends: 6628 [2018-11-18 12:52:57,126 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3700 GetRequests, 3652 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=518, Invalid=1932, Unknown=0, NotChecked=0, Total=2450 [2018-11-18 12:52:57,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6628 states. [2018-11-18 12:52:57,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6628 to 5818. [2018-11-18 12:52:57,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5818 states. [2018-11-18 12:52:57,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 5980 transitions. [2018-11-18 12:52:57,183 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 5980 transitions. Word has length 1809 [2018-11-18 12:52:57,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:52:57,183 INFO L480 AbstractCegarLoop]: Abstraction has 5818 states and 5980 transitions. [2018-11-18 12:52:57,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 12:52:57,183 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 5980 transitions. [2018-11-18 12:52:57,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1926 [2018-11-18 12:52:57,198 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:52:57,198 INFO L375 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-11-18 12:52:57,198 INFO L423 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:52:57,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:52:57,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1068120813, now seen corresponding path program 1 times [2018-11-18 12:52:57,199 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:52:57,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:52:57,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:52:57,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:52:57,199 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:52:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:52:58,395 INFO L134 CoverageAnalysis]: Checked inductivity of 11031 backedges. 823 proven. 0 refuted. 0 times theorem prover too weak. 10208 trivial. 0 not checked. [2018-11-18 12:52:58,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:52:58,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 12:52:58,395 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:52:58,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:52:58,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:52:58,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:52:58,396 INFO L87 Difference]: Start difference. First operand 5818 states and 5980 transitions. Second operand 4 states. [2018-11-18 12:52:58,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:52:58,830 INFO L93 Difference]: Finished difference Result 12249 states and 12625 transitions. [2018-11-18 12:52:58,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:52:58,831 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1925 [2018-11-18 12:52:58,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:52:58,832 INFO L225 Difference]: With dead ends: 12249 [2018-11-18 12:52:58,832 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:52:58,838 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 12:52:58,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:52:58,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:52:58,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:52:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:52:58,838 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1925 [2018-11-18 12:52:58,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:52:58,839 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:52:58,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:52:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:52:58,839 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:52:58,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:52:59,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,114 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,289 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,412 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,416 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,462 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,540 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,684 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,797 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:52:59,940 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,301 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,316 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,398 WARN L180 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 903 DAG size of output: 739 [2018-11-18 12:53:00,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,406 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,412 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,779 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:00,944 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,087 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,205 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,290 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,354 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,518 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 12:53:01,531 WARN L180 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 915 DAG size of output: 750 [2018-11-18 12:53:06,716 WARN L180 SmtUtils]: Spent 5.10 s on a formula simplification. DAG size of input: 448 DAG size of output: 115 [2018-11-18 12:53:16,722 WARN L180 SmtUtils]: Spent 9.99 s on a formula simplification. DAG size of input: 707 DAG size of output: 120 [2018-11-18 12:53:24,825 WARN L180 SmtUtils]: Spent 8.10 s on a formula simplification. DAG size of input: 718 DAG size of output: 99 [2018-11-18 12:53:24,827 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:53:24,828 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-11-18 12:53:24,828 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:53:24,828 INFO L425 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-18 12:53:24,828 INFO L425 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-18 12:53:24,828 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,828 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,828 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,828 INFO L425 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-18 12:53:24,828 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 12:53:24,828 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 12:53:24,828 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 12:53:24,828 INFO L425 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-18 12:53:24,829 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,830 INFO L425 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-18 12:53:24,831 INFO L425 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,832 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 12:53:24,833 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-18 12:53:24,834 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse3 (= 8 |old(~a15~0)|)) (.cse22 (= ~a21~0 |old(~a21~0)|)) (.cse20 (= 8 ~a15~0)) (.cse21 (= ~a24~0 1)) (.cse6 (= ~a12~0 |old(~a12~0)|)) (.cse19 (= ~a21~0 9)) (.cse7 (= |old(~a15~0)| ~a15~0)) (.cse8 (= 1 ~a24~0))) (let ((.cse12 (and .cse6 .cse19 .cse7 .cse8)) (.cse10 (not (= 9 |old(~a21~0)|))) (.cse13 (< 73282 |old(~a12~0)|)) (.cse17 (< 6 |old(~a21~0)|)) (.cse18 (and .cse6 .cse22 .cse20 .cse21)) (.cse0 (not (= 7 |old(~a21~0)|))) (.cse11 (< 78 |old(~a12~0)|)) (.cse1 (and .cse6 .cse22 .cse7 .cse8)) (.cse4 (= 5 |old(~a15~0)|)) (.cse14 (not (= 8 |old(~a21~0)|))) (.cse5 (not (= 10 |old(~a21~0)|))) (.cse9 (= 10 ~a21~0)) (.cse2 (not (= 1 |old(~a24~0)|))) (.cse15 (not .cse3)) (.cse16 (= |calculate_output_#in~input| 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (= 6 |old(~a21~0)|)) .cse1 .cse2 (not .cse4)) (or (or (or .cse5 .cse3) .cse2) (and .cse6 .cse7 .cse8 .cse9)) (or .cse10 .cse11 .cse2 .cse3 .cse12) (or .cse10 .cse12 .cse4 .cse2 .cse3) (or .cse2 .cse1 .cse13 .cse3 .cse14) (or (= 0 |old(~a21~0)|) .cse2 .cse15 .cse16 .cse17 .cse18) (or (< 76 |old(~a12~0)|) .cse15 .cse16 .cse10 .cse2 (and .cse6 .cse19 .cse20 .cse21)) (or .cse1 (or .cse2 .cse3 .cse17) (< |old(~a15~0)| 6)) (or .cse18 .cse2 .cse15 .cse13 .cse16 .cse14) (or (and .cse6 (= ~a24~0 |old(~a24~0)|) .cse22 .cse7) (forall ((v_prenex_23 Int)) (let ((.cse24 (mod v_prenex_23 299978))) (let ((.cse23 (div (+ .cse24 (- 599998)) 5))) (or (<= 0 v_prenex_23) (< (+ (div (+ (* (- 1) .cse23) (- 194993)) 10) 1) |old(~a12~0)|) (not (= (mod (+ .cse24 2) 5) 0)) (= 0 .cse24) (<= (+ .cse23 194993) 0) (= 0 (mod (+ (* 9 .cse23) 7) 10)))))) .cse3 .cse17 (= 9 |old(~a15~0)|)) (or .cse18 .cse0 .cse11 .cse2 .cse15 .cse16) (or .cse1 .cse4 .cse2 .cse3 .cse14) (or .cse5 (and .cse6 .cse20 .cse21 .cse9) .cse2 .cse15 .cse16)))) [2018-11-18 12:53:24,834 INFO L425 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-18 12:53:24,834 INFO L425 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-18 12:53:24,834 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,834 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,834 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,834 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 12:53:24,834 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 12:53:24,834 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 12:53:24,834 INFO L425 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-18 12:53:24,834 INFO L425 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,835 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-18 12:53:24,836 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 12:53:24,837 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-18 12:53:24,838 INFO L425 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,839 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 172) no Hoare annotation was computed. [2018-11-18 12:53:24,840 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-18 12:53:24,841 INFO L425 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-18 12:53:24,842 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 12:53:24,843 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 12:53:24,843 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 12:53:24,843 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-18 12:53:24,843 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:53:24,843 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-11-18 12:53:24,843 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:53:24,843 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:53:24,843 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (not (= 7 |old(~a21~0)|)) (and (= (+ ~a12~0 49) 0) (= 7 ~a21~0) (= |old(~a15~0)| ~a15~0) (= ~a24~0 1)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-11-18 12:53:24,843 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-18 12:53:24,843 INFO L421 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse4 (= ~a21~0 9))) (let ((.cse17 (not (= ~a15~0 9))) (.cse22 (not .cse4)) (.cse21 (not (= ~a21~0 0))) (.cse11 (not (= main_~input~0 0))) (.cse12 (= ~a24~0 1)) (.cse23 (<= 7 |old(~a21~0)|)) (.cse16 (= 8 |old(~a15~0)|)) (.cse13 (not (= 1 |old(~a24~0)|))) (.cse5 (= 1 ~a24~0)) (.cse7 (not (= ~a15~0 8))) (.cse6 (= 5 ~a15~0))) (let ((.cse0 (and .cse5 .cse7 (not .cse6))) (.cse2 (= ~a21~0 7)) (.cse10 (<= ~a12~0 78)) (.cse15 (and (and .cse22 .cse21 .cse11 .cse12 .cse23 .cse16 (= ~a15~0 |old(~a15~0)|)) (or (not (= 9 |old(~a21~0)|)) .cse13 (<= 12 |old(~a12~0)|)))) (.cse14 (<= ~a12~0 73282)) (.cse1 (= ~a21~0 8)) (.cse9 (= 9 ~a15~0)) (.cse8 (<= ~a21~0 6)) (.cse20 (= ~a21~0 10)) (.cse3 (and .cse17 .cse22 .cse5 .cse23 .cse7 .cse16))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse0 .cse4) (not (= 7 |old(~a21~0)|)) (and (= 6 ~a21~0) .cse5 .cse6) (and (<= 6 ~a15~0) (and .cse5 .cse7 .cse8)) (and .cse5 .cse2 .cse9) (and .cse10 (and (= 7 ~a21~0) .cse11 .cse12)) .cse13 (and .cse14 .cse15 .cse1) (not .cse16) (and .cse17 (exists ((v_prenex_23 Int)) (let ((.cse18 (mod v_prenex_23 299978))) (let ((.cse19 (div (+ .cse18 (- 599998)) 5))) (and (< v_prenex_23 0) (not (= 0 .cse18)) (= (mod (+ .cse18 2) 5) 0) (<= ~a12~0 (+ (div (+ (* (- 1) .cse19) (- 194993)) 10) 1)) (not (= 0 (mod (+ (* 9 .cse19) 7) 10))) (< 0 (+ .cse19 194993)))))) .cse7 .cse8) (and .cse10 (and (and .cse5 .cse7) .cse4)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse15 .cse20) (and .cse14 .cse3 .cse1) (and .cse20 (and .cse5 .cse9)) (and (and (<= ~a12~0 76) .cse11 .cse4) .cse5) (and .cse21 .cse11 (= 8 ~a15~0) .cse12 .cse8) (and .cse20 .cse3))))) [2018-11-18 12:53:24,844 INFO L425 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-18 12:53:24,844 INFO L425 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-18 12:53:24,844 INFO L425 ceAbstractionStarter]: For program point L880-1(lines 880 889) no Hoare annotation was computed. [2018-11-18 12:53:24,844 INFO L421 ceAbstractionStarter]: At program point L880-3(lines 880 889) the Hoare annotation is: (let ((.cse5 (= 1 ~a24~0)) (.cse8 (not (= ~a15~0 8))) (.cse6 (= 5 ~a15~0))) (let ((.cse1 (= ~a21~0 8)) (.cse0 (and .cse5 .cse8 (not .cse6))) (.cse9 (<= ~a21~0 6)) (.cse7 (<= ~a12~0 78)) (.cse2 (and .cse5 .cse8)) (.cse3 (= ~a24~0 1)) (.cse4 (= ~a21~0 9))) (or (and .cse0 .cse1) (and (= ~a21~0 7) .cse2) (and (<= ~a12~0 73282) .cse1 .cse3) (and .cse0 .cse4) (not (= 7 |old(~a21~0)|)) (and (= 6 ~a21~0) .cse5 .cse6) (and .cse7 (and (= 7 ~a21~0) .cse3)) (and (<= 6 ~a15~0) (and .cse5 .cse8 .cse9)) (and (not (= ~a21~0 0)) (= 8 ~a15~0) .cse3 .cse9) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (and (not (= ~a15~0 9)) (exists ((v_prenex_23 Int)) (let ((.cse10 (mod v_prenex_23 299978))) (let ((.cse11 (div (+ .cse10 (- 599998)) 5))) (and (< v_prenex_23 0) (not (= 0 .cse10)) (= (mod (+ .cse10 2) 5) 0) (<= ~a12~0 (+ (div (+ (* (- 1) .cse11) (- 194993)) 10) 1)) (not (= 0 (mod (+ (* 9 .cse11) 7) 10))) (< 0 (+ .cse11 194993)))))) .cse8 .cse9) (and .cse7 (and .cse2 .cse4)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse3 (<= ~a12~0 76) .cse4) (and (= ~a21~0 10) .cse5)))) [2018-11-18 12:53:24,844 INFO L425 ceAbstractionStarter]: For program point L880-4(lines 874 890) no Hoare annotation was computed. [2018-11-18 12:53:24,848 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,849 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,849 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,849 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,850 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,850 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,854 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,855 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,855 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,855 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,855 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,855 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:53:24 BoogieIcfgContainer [2018-11-18 12:53:24,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:53:24,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:53:24,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:53:24,858 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:53:24,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:48:37" (3/4) ... [2018-11-18 12:53:24,862 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:53:24,866 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:53:24,866 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 12:53:24,867 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:53:24,877 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 12:53:24,878 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 12:53:24,902 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((1 == a24 && !(a15 == 8)) && !(5 == a15)) && a21 == 8) || (a21 == 7 && 1 == a24 && !(a15 == 8))) || ((a12 <= 73282 && a21 == 8) && a24 == 1)) || (((1 == a24 && !(a15 == 8)) && !(5 == a15)) && a21 == 9)) || !(7 == \old(a21))) || ((6 == a21 && 1 == a24) && 5 == a15)) || (a12 <= 78 && 7 == a21 && a24 == 1)) || (6 <= a15 && (1 == a24 && !(a15 == 8)) && a21 <= 6)) || (((!(a21 == 0) && 8 == a15) && a24 == 1) && a21 <= 6)) || !(1 == \old(a24))) || !(8 == \old(a15))) || (((!(a15 == 9) && (\exists v_prenex_23 : int :: ((((v_prenex_23 < 0 && !(0 == v_prenex_23 % 299978)) && (v_prenex_23 % 299978 + 2) % 5 == 0) && a12 <= (-1 * ((v_prenex_23 % 299978 + -599998) / 5) + -194993) / 10 + 1) && !(0 == (9 * ((v_prenex_23 % 299978 + -599998) / 5) + 7) % 10)) && 0 < (v_prenex_23 % 299978 + -599998) / 5 + 194993)) && !(a15 == 8)) && a21 <= 6)) || (a12 <= 78 && (1 == a24 && !(a15 == 8)) && a21 == 9)) || !(0 == \old(a12) + 49)) || ((a24 == 1 && a12 <= 76) && a21 == 9)) || (a21 == 10 && 1 == a24) [2018-11-18 12:53:24,979 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a559d24b-08fc-4b57-a349-7426c487fd00/bin-2019/utaipan/witness.graphml [2018-11-18 12:53:24,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:53:24,979 INFO L168 Benchmark]: Toolchain (without parser) took 289072.13 ms. Allocated memory was 1.0 GB in the beginning and 5.1 GB in the end (delta: 4.0 GB). Free memory was 955.5 MB in the beginning and 2.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.5 GB. Max. memory is 11.5 GB. [2018-11-18 12:53:24,980 INFO L168 Benchmark]: CDTParser took 0.16 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 12:53:24,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.98 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 915.1 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:24,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 915.1 MB in the beginning and 1.1 GB in the end (delta: -231.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:24,980 INFO L168 Benchmark]: Boogie Preprocessor took 54.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:24,981 INFO L168 Benchmark]: RCFGBuilder took 935.16 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: 121.1 MB). Peak memory consumption was 121.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:24,981 INFO L168 Benchmark]: TraceAbstraction took 287463.71 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 2.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. [2018-11-18 12:53:24,981 INFO L168 Benchmark]: Witness Printer took 120.73 ms. Allocated memory is still 5.1 GB. Free memory was 2.5 GB in the beginning and 2.5 GB in the end (delta: 2.1 kB). Peak memory consumption was 2.1 kB. Max. memory is 11.5 GB. [2018-11-18 12:53:24,982 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 421.98 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 915.1 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 915.1 MB in the beginning and 1.1 GB in the end (delta: -231.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 935.16 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: 121.1 MB). Peak memory consumption was 121.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 287463.71 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 2.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. * Witness Printer took 120.73 ms. Allocated memory is still 5.1 GB. Free memory was 2.5 GB in the beginning and 2.5 GB in the end (delta: 2.1 kB). Peak memory consumption was 2.1 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 172]: 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: 880]: Loop Invariant [2018-11-18 12:53:24,986 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,986 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,986 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,986 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,986 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,987 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,987 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,987 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,988 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,988 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,988 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] [2018-11-18 12:53:24,988 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_23,QUANTIFIED] Derived loop invariant: (((((((((((((((((1 == a24 && !(a15 == 8)) && !(5 == a15)) && a21 == 8) || (a21 == 7 && 1 == a24 && !(a15 == 8))) || ((a12 <= 73282 && a21 == 8) && a24 == 1)) || (((1 == a24 && !(a15 == 8)) && !(5 == a15)) && a21 == 9)) || !(7 == \old(a21))) || ((6 == a21 && 1 == a24) && 5 == a15)) || (a12 <= 78 && 7 == a21 && a24 == 1)) || (6 <= a15 && (1 == a24 && !(a15 == 8)) && a21 <= 6)) || (((!(a21 == 0) && 8 == a15) && a24 == 1) && a21 <= 6)) || !(1 == \old(a24))) || !(8 == \old(a15))) || (((!(a15 == 9) && (\exists v_prenex_23 : int :: ((((v_prenex_23 < 0 && !(0 == v_prenex_23 % 299978)) && (v_prenex_23 % 299978 + 2) % 5 == 0) && a12 <= (-1 * ((v_prenex_23 % 299978 + -599998) / 5) + -194993) / 10 + 1) && !(0 == (9 * ((v_prenex_23 % 299978 + -599998) / 5) + 7) % 10)) && 0 < (v_prenex_23 % 299978 + -599998) / 5 + 194993)) && !(a15 == 8)) && a21 <= 6)) || (a12 <= 78 && (1 == a24 && !(a15 == 8)) && a21 == 9)) || !(0 == \old(a12) + 49)) || ((a24 == 1 && a12 <= 76) && a21 == 9)) || (a21 == 10 && 1 == a24) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. SAFE Result, 287.4s OverallTime, 22 OverallIterations, 15 TraceHistogramMax, 96.1s AutomataDifference, 0.0s DeadEndRemovalTime, 25.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 2317 SDtfs, 52084 SDslu, 4562 SDs, 0 SdLazy, 60426 SolverSat, 7670 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 75.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 32836 GetRequests, 32159 SyntacticMatches, 67 SemanticMatches, 610 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7151 ImplicationChecksByTransitivity, 47.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18268occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 86.4s AbstIntTime, 16 AbstIntIterations, 2 AbstIntStrong, 0.9976640083241106 AbsIntWeakeningRatio, 0.07611548556430446 AbsIntAvgWeakeningVarsNumRemoved, 15.825459317585302 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 22 MinimizatonAttempts, 6851 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 681 PreInvPairs, 855 NumberOfFragments, 1173 HoareAnnotationTreeSize, 681 FomulaSimplifications, 2561056 FormulaSimplificationTreeSizeReduction, 2.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 625285 FormulaSimplificationTreeSizeReductionInter, 23.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 57.4s InterpolantComputationTime, 34522 NumberOfCodeBlocks, 34010 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 50081 ConstructedInterpolants, 59 QuantifiedInterpolants, 199069310 SizeOfPredicates, 50 NumberOfNonLiveVariables, 20735 ConjunctsInSsa, 136 ConjunctsInUnsatCore, 52 InterpolantComputations, 7 PerfectInterpolantSequences, 154612/169890 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...