./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label35_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label35_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/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 c7f4654ff67788aa54aaf551606d5d8c93a335a5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:25:39,391 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:25:39,392 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:25:39,399 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:25:39,399 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:25:39,400 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:25:39,400 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:25:39,401 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:25:39,403 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:25:39,403 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:25:39,404 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:25:39,404 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:25:39,405 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:25:39,405 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:25:39,406 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:25:39,407 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:25:39,407 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:25:39,408 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:25:39,410 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:25:39,411 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:25:39,412 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:25:39,413 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:25:39,414 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:25:39,415 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:25:39,415 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:25:39,415 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:25:39,416 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:25:39,416 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:25:39,417 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:25:39,417 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:25:39,417 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:25:39,418 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:25:39,418 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:25:39,418 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:25:39,418 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:25:39,419 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:25:39,419 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 09:25:39,429 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:25:39,429 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:25:39,429 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:25:39,429 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:25:39,430 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:25:39,430 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:25:39,430 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:25:39,430 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 09:25:39,430 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:25:39,430 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:25:39,432 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 09:25:39,432 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 09:25:39,432 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:25:39,433 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:25:39,433 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:25:39,433 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:25:39,433 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:25:39,434 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:25:39,434 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:25:39,434 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:25:39,434 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:25:39,434 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:25:39,434 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:25:39,434 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:25:39,435 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:25:39,435 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:25:39,435 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:25:39,435 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:25:39,435 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:25:39,435 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:25:39,435 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:25:39,435 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:25:39,435 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:25:39,435 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 09:25:39,435 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:25:39,436 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:25:39,436 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 09:25:39,436 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_e984a23e-561e-47c7-a8e9-3cee96d55c8d/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 -> c7f4654ff67788aa54aaf551606d5d8c93a335a5 [2018-11-18 09:25:39,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:25:39,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:25:39,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:25:39,471 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:25:39,471 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:25:39,472 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem16_label35_true-unreach-call.c [2018-11-18 09:25:39,509 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/bin-2019/utaipan/data/b802b6e10/b47231a01f37401e9f0961b3ab746c29/FLAG9422e04f4 [2018-11-18 09:25:39,977 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:25:39,977 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/sv-benchmarks/c/eca-rers2012/Problem16_label35_true-unreach-call.c [2018-11-18 09:25:39,990 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/bin-2019/utaipan/data/b802b6e10/b47231a01f37401e9f0961b3ab746c29/FLAG9422e04f4 [2018-11-18 09:25:40,508 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/bin-2019/utaipan/data/b802b6e10/b47231a01f37401e9f0961b3ab746c29 [2018-11-18 09:25:40,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:25:40,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:25:40,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:25:40,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:25:40,520 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:25:40,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:25:40" (1/1) ... [2018-11-18 09:25:40,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788382f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:40, skipping insertion in model container [2018-11-18 09:25:40,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:25:40" (1/1) ... [2018-11-18 09:25:40,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:25:40,588 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:25:40,991 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:25:40,995 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:25:41,257 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:25:41,271 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:25:41,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:41 WrapperNode [2018-11-18 09:25:41,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:25:41,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:25:41,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:25:41,272 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:25:41,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:41" (1/1) ... [2018-11-18 09:25:41,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:41" (1/1) ... [2018-11-18 09:25:41,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:25:41,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:25:41,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:25:41,308 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:25:41,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:41" (1/1) ... [2018-11-18 09:25:41,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:41" (1/1) ... [2018-11-18 09:25:41,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:41" (1/1) ... [2018-11-18 09:25:41,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:41" (1/1) ... [2018-11-18 09:25:41,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:41" (1/1) ... [2018-11-18 09:25:41,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:41" (1/1) ... [2018-11-18 09:25:41,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:41" (1/1) ... [2018-11-18 09:25:41,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:25:41,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:25:41,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:25:41,385 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:25:41,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/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 09:25:41,425 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 09:25:41,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:25:41,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:25:41,425 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-18 09:25:41,425 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-18 09:25:41,425 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 09:25:41,425 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 09:25:41,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:25:41,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:25:41,426 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:25:41,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:25:42,952 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:25:42,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:25:42 BoogieIcfgContainer [2018-11-18 09:25:42,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:25:42,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:25:42,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:25:42,958 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:25:42,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:25:40" (1/3) ... [2018-11-18 09:25:42,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6595987a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:25:42, skipping insertion in model container [2018-11-18 09:25:42,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:25:41" (2/3) ... [2018-11-18 09:25:42,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6595987a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:25:42, skipping insertion in model container [2018-11-18 09:25:42,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:25:42" (3/3) ... [2018-11-18 09:25:42,963 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label35_true-unreach-call.c [2018-11-18 09:25:42,972 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:25:42,980 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:25:42,995 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:25:43,027 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:25:43,028 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:25:43,028 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:25:43,028 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:25:43,028 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:25:43,028 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:25:43,028 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:25:43,029 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:25:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-18 09:25:43,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 09:25:43,060 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:25:43,061 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] [2018-11-18 09:25:43,063 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:25:43,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:25:43,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1960867948, now seen corresponding path program 1 times [2018-11-18 09:25:43,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:25:43,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:43,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:25:43,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:43,117 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:25:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:25:43,330 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 09:25:43,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:25:43,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:25:43,333 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:25:43,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:25:43,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:25:43,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:25:43,353 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-11-18 09:25:45,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:25:45,096 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-11-18 09:25:45,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:25:45,098 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2018-11-18 09:25:45,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:25:45,116 INFO L225 Difference]: With dead ends: 1513 [2018-11-18 09:25:45,116 INFO L226 Difference]: Without dead ends: 1097 [2018-11-18 09:25:45,122 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:25:45,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-11-18 09:25:45,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 744. [2018-11-18 09:25:45,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-18 09:25:45,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1357 transitions. [2018-11-18 09:25:45,201 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1357 transitions. Word has length 48 [2018-11-18 09:25:45,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:25:45,201 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1357 transitions. [2018-11-18 09:25:45,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:25:45,202 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1357 transitions. [2018-11-18 09:25:45,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-18 09:25:45,206 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:25:45,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:25:45,206 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:25:45,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:25:45,207 INFO L82 PathProgramCache]: Analyzing trace with hash 321031098, now seen corresponding path program 1 times [2018-11-18 09:25:45,207 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:25:45,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:45,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:25:45,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:45,208 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:25:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:25:45,333 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:25:45,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:25:45,334 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:25:45,334 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:25:45,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:25:45,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:25:45,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:25:45,336 INFO L87 Difference]: Start difference. First operand 744 states and 1357 transitions. Second operand 5 states. [2018-11-18 09:25:47,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:25:47,015 INFO L93 Difference]: Finished difference Result 2196 states and 4092 transitions. [2018-11-18 09:25:47,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:25:47,015 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2018-11-18 09:25:47,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:25:47,022 INFO L225 Difference]: With dead ends: 2196 [2018-11-18 09:25:47,022 INFO L226 Difference]: Without dead ends: 1458 [2018-11-18 09:25:47,024 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:25:47,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2018-11-18 09:25:47,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1438. [2018-11-18 09:25:47,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-11-18 09:25:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2551 transitions. [2018-11-18 09:25:47,062 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2551 transitions. Word has length 118 [2018-11-18 09:25:47,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:25:47,062 INFO L480 AbstractCegarLoop]: Abstraction has 1438 states and 2551 transitions. [2018-11-18 09:25:47,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:25:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2551 transitions. [2018-11-18 09:25:47,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-18 09:25:47,065 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:25:47,065 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:25:47,065 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:25:47,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:25:47,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1441710001, now seen corresponding path program 1 times [2018-11-18 09:25:47,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:25:47,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:47,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:25:47,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:47,067 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:25:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:25:47,185 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:25:47,185 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:25:47,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 09:25:47,185 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:25:47,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:25:47,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:25:47,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:25:47,186 INFO L87 Difference]: Start difference. First operand 1438 states and 2551 transitions. Second operand 6 states. [2018-11-18 09:25:49,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:25:49,237 INFO L93 Difference]: Finished difference Result 4237 states and 7540 transitions. [2018-11-18 09:25:49,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:25:49,239 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-11-18 09:25:49,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:25:49,251 INFO L225 Difference]: With dead ends: 4237 [2018-11-18 09:25:49,252 INFO L226 Difference]: Without dead ends: 2805 [2018-11-18 09:25:49,259 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 09:25:49,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2805 states. [2018-11-18 09:25:49,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2805 to 2785. [2018-11-18 09:25:49,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2785 states. [2018-11-18 09:25:49,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4352 transitions. [2018-11-18 09:25:49,327 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4352 transitions. Word has length 121 [2018-11-18 09:25:49,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:25:49,327 INFO L480 AbstractCegarLoop]: Abstraction has 2785 states and 4352 transitions. [2018-11-18 09:25:49,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:25:49,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4352 transitions. [2018-11-18 09:25:49,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-11-18 09:25:49,329 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:25:49,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:25:49,330 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:25:49,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:25:49,330 INFO L82 PathProgramCache]: Analyzing trace with hash 692588274, now seen corresponding path program 1 times [2018-11-18 09:25:49,330 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:25:49,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:49,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:25:49,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:49,331 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:25:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:25:49,426 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:25:49,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:25:49,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 09:25:49,427 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:25:49,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:25:49,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:25:49,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:25:49,427 INFO L87 Difference]: Start difference. First operand 2785 states and 4352 transitions. Second operand 6 states. [2018-11-18 09:25:51,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:25:51,147 INFO L93 Difference]: Finished difference Result 6952 states and 11048 transitions. [2018-11-18 09:25:51,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:25:51,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-11-18 09:25:51,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:25:51,162 INFO L225 Difference]: With dead ends: 6952 [2018-11-18 09:25:51,163 INFO L226 Difference]: Without dead ends: 4173 [2018-11-18 09:25:51,174 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 09:25:51,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4173 states. [2018-11-18 09:25:51,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4173 to 4153. [2018-11-18 09:25:51,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4153 states. [2018-11-18 09:25:51,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4153 states to 4153 states and 5896 transitions. [2018-11-18 09:25:51,268 INFO L78 Accepts]: Start accepts. Automaton has 4153 states and 5896 transitions. Word has length 122 [2018-11-18 09:25:51,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:25:51,268 INFO L480 AbstractCegarLoop]: Abstraction has 4153 states and 5896 transitions. [2018-11-18 09:25:51,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:25:51,269 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states and 5896 transitions. [2018-11-18 09:25:51,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-18 09:25:51,270 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:25:51,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:25:51,270 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:25:51,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:25:51,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1832365575, now seen corresponding path program 1 times [2018-11-18 09:25:51,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:25:51,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:51,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:25:51,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:51,272 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:25:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:25:51,392 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:25:51,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:25:51,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 09:25:51,392 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:25:51,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:25:51,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:25:51,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:25:51,393 INFO L87 Difference]: Start difference. First operand 4153 states and 5896 transitions. Second operand 6 states. [2018-11-18 09:25:53,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:25:53,289 INFO L93 Difference]: Finished difference Result 11374 states and 16767 transitions. [2018-11-18 09:25:53,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:25:53,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-11-18 09:25:53,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:25:53,307 INFO L225 Difference]: With dead ends: 11374 [2018-11-18 09:25:53,307 INFO L226 Difference]: Without dead ends: 7227 [2018-11-18 09:25:53,318 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 09:25:53,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7227 states. [2018-11-18 09:25:53,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7227 to 7152. [2018-11-18 09:25:53,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7152 states. [2018-11-18 09:25:53,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7152 states to 7152 states and 9826 transitions. [2018-11-18 09:25:53,412 INFO L78 Accepts]: Start accepts. Automaton has 7152 states and 9826 transitions. Word has length 125 [2018-11-18 09:25:53,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:25:53,412 INFO L480 AbstractCegarLoop]: Abstraction has 7152 states and 9826 transitions. [2018-11-18 09:25:53,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:25:53,412 INFO L276 IsEmpty]: Start isEmpty. Operand 7152 states and 9826 transitions. [2018-11-18 09:25:53,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-11-18 09:25:53,413 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:25:53,413 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:25:53,414 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:25:53,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:25:53,414 INFO L82 PathProgramCache]: Analyzing trace with hash 911780215, now seen corresponding path program 1 times [2018-11-18 09:25:53,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:25:53,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:53,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:25:53,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:53,415 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:25:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:25:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:25:53,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:25:53,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 09:25:53,515 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:25:53,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:25:53,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:25:53,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:25:53,516 INFO L87 Difference]: Start difference. First operand 7152 states and 9826 transitions. Second operand 6 states. [2018-11-18 09:25:54,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:25:54,742 INFO L93 Difference]: Finished difference Result 17771 states and 25546 transitions. [2018-11-18 09:25:54,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 09:25:54,743 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-11-18 09:25:54,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:25:54,777 INFO L225 Difference]: With dead ends: 17771 [2018-11-18 09:25:54,777 INFO L226 Difference]: Without dead ends: 10625 [2018-11-18 09:25:54,794 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 09:25:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10625 states. [2018-11-18 09:25:54,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10625 to 10585. [2018-11-18 09:25:54,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10585 states. [2018-11-18 09:25:54,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10585 states to 10585 states and 13819 transitions. [2018-11-18 09:25:54,975 INFO L78 Accepts]: Start accepts. Automaton has 10585 states and 13819 transitions. Word has length 133 [2018-11-18 09:25:54,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:25:54,975 INFO L480 AbstractCegarLoop]: Abstraction has 10585 states and 13819 transitions. [2018-11-18 09:25:54,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:25:54,975 INFO L276 IsEmpty]: Start isEmpty. Operand 10585 states and 13819 transitions. [2018-11-18 09:25:54,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-18 09:25:54,977 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:25:54,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:25:54,977 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:25:54,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:25:54,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1008425326, now seen corresponding path program 1 times [2018-11-18 09:25:54,977 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:25:54,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:54,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:25:54,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:25:54,978 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:25:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:25:55,084 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 09:25:55,084 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:25:55,084 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:25:55,085 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-11-18 09:25:55,086 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-18 09:25:55,120 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:25:55,120 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:25:55,600 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:25:55,601 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Performed 2532 root evaluator evaluations with a maximum evaluation depth of 7. Performed 2532 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 09:25:55,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:25:55,627 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:25:55,846 INFO L227 lantSequenceWeakener]: Weakened 137 states. On average, predicates are now at 80.97% of their original sizes. [2018-11-18 09:25:55,846 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:25:55,906 INFO L415 sIntCurrentIteration]: We unified 139 AI predicates to 139 [2018-11-18 09:25:55,907 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:25:55,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:25:55,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-11-18 09:25:55,908 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:25:55,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:25:55,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:25:55,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:25:55,908 INFO L87 Difference]: Start difference. First operand 10585 states and 13819 transitions. Second operand 10 states. [2018-11-18 09:27:09,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:27:09,465 INFO L93 Difference]: Finished difference Result 26688 states and 34362 transitions. [2018-11-18 09:27:09,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 09:27:09,466 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 140 [2018-11-18 09:27:09,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:27:09,513 INFO L225 Difference]: With dead ends: 26688 [2018-11-18 09:27:09,513 INFO L226 Difference]: Without dead ends: 16109 [2018-11-18 09:27:09,555 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-11-18 09:27:09,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16109 states. [2018-11-18 09:27:09,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16109 to 16053. [2018-11-18 09:27:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16053 states. [2018-11-18 09:27:09,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16053 states to 16053 states and 19665 transitions. [2018-11-18 09:27:09,892 INFO L78 Accepts]: Start accepts. Automaton has 16053 states and 19665 transitions. Word has length 140 [2018-11-18 09:27:09,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:27:09,892 INFO L480 AbstractCegarLoop]: Abstraction has 16053 states and 19665 transitions. [2018-11-18 09:27:09,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:27:09,892 INFO L276 IsEmpty]: Start isEmpty. Operand 16053 states and 19665 transitions. [2018-11-18 09:27:09,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2018-11-18 09:27:09,901 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:27:09,902 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 09:27:09,902 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:27:09,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:27:09,902 INFO L82 PathProgramCache]: Analyzing trace with hash -934901087, now seen corresponding path program 1 times [2018-11-18 09:27:09,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:27:09,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:27:09,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:27:09,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:27:09,903 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:27:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:27:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 65 proven. 175 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 09:27:10,534 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:27:10,534 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:27:10,534 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 452 with the following transitions: [2018-11-18 09:27:10,535 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1044], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-18 09:27:10,541 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:27:10,542 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:27:10,890 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:27:10,890 INFO L272 AbstractInterpreter]: Visited 248 different actions 987 times. Merged at 7 different actions 28 times. Widened at 1 different actions 1 times. Performed 11344 root evaluator evaluations with a maximum evaluation depth of 9. Performed 11344 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 09:27:10,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:27:10,894 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:27:11,268 INFO L227 lantSequenceWeakener]: Weakened 448 states. On average, predicates are now at 80.34% of their original sizes. [2018-11-18 09:27:11,268 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:27:11,346 INFO L415 sIntCurrentIteration]: We unified 450 AI predicates to 450 [2018-11-18 09:27:11,346 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:27:11,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:27:11,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2018-11-18 09:27:11,347 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:27:11,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:27:11,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:27:11,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:27:11,348 INFO L87 Difference]: Start difference. First operand 16053 states and 19665 transitions. Second operand 9 states. [2018-11-18 09:28:08,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:28:08,443 INFO L93 Difference]: Finished difference Result 34236 states and 41946 transitions. [2018-11-18 09:28:08,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 09:28:08,443 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 451 [2018-11-18 09:28:08,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:28:08,488 INFO L225 Difference]: With dead ends: 34236 [2018-11-18 09:28:08,488 INFO L226 Difference]: Without dead ends: 18527 [2018-11-18 09:28:08,514 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 457 GetRequests, 443 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 09:28:08,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18527 states. [2018-11-18 09:28:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18527 to 18500. [2018-11-18 09:28:08,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18500 states. [2018-11-18 09:28:08,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18500 states to 18500 states and 22467 transitions. [2018-11-18 09:28:08,819 INFO L78 Accepts]: Start accepts. Automaton has 18500 states and 22467 transitions. Word has length 451 [2018-11-18 09:28:08,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:28:08,820 INFO L480 AbstractCegarLoop]: Abstraction has 18500 states and 22467 transitions. [2018-11-18 09:28:08,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:28:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 18500 states and 22467 transitions. [2018-11-18 09:28:08,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2018-11-18 09:28:08,830 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:28:08,830 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:08,831 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:28:08,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:08,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1257188118, now seen corresponding path program 1 times [2018-11-18 09:28:08,831 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:28:08,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:08,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:08,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:08,832 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:28:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:09,095 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-11-18 09:28:09,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:28:09,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:28:09,095 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:28:09,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:28:09,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:28:09,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:28:09,096 INFO L87 Difference]: Start difference. First operand 18500 states and 22467 transitions. Second operand 4 states. [2018-11-18 09:28:10,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:28:10,772 INFO L93 Difference]: Finished difference Result 45656 states and 56843 transitions. [2018-11-18 09:28:10,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:28:10,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 488 [2018-11-18 09:28:10,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:28:10,820 INFO L225 Difference]: With dead ends: 45656 [2018-11-18 09:28:10,821 INFO L226 Difference]: Without dead ends: 27500 [2018-11-18 09:28:10,859 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 09:28:10,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27500 states. [2018-11-18 09:28:11,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27500 to 27497. [2018-11-18 09:28:11,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27497 states. [2018-11-18 09:28:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27497 states to 27497 states and 32757 transitions. [2018-11-18 09:28:11,147 INFO L78 Accepts]: Start accepts. Automaton has 27497 states and 32757 transitions. Word has length 488 [2018-11-18 09:28:11,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:28:11,148 INFO L480 AbstractCegarLoop]: Abstraction has 27497 states and 32757 transitions. [2018-11-18 09:28:11,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:28:11,148 INFO L276 IsEmpty]: Start isEmpty. Operand 27497 states and 32757 transitions. [2018-11-18 09:28:11,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2018-11-18 09:28:11,162 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:28:11,162 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:11,163 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:28:11,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:11,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1406181657, now seen corresponding path program 1 times [2018-11-18 09:28:11,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:28:11,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:11,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:11,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:11,164 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:28:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:11,405 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 387 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-11-18 09:28:11,406 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:11,406 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:28:11,406 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 552 with the following transitions: [2018-11-18 09:28:11,406 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [924], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-18 09:28:11,411 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:28:11,411 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:28:11,759 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:28:11,759 INFO L272 AbstractInterpreter]: Visited 250 different actions 743 times. Merged at 8 different actions 17 times. Never widened. Performed 8342 root evaluator evaluations with a maximum evaluation depth of 18. Performed 8342 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 09:28:11,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:11,771 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:28:11,771 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:11,771 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/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 09:28:11,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:11,790 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:28:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:11,891 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:28:12,054 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 387 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-11-18 09:28:12,055 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:28:12,236 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 387 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-11-18 09:28:12,252 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:28:12,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-18 09:28:12,253 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:28:12,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:28:12,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:28:12,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:28:12,254 INFO L87 Difference]: Start difference. First operand 27497 states and 32757 transitions. Second operand 9 states. [2018-11-18 09:28:16,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:28:16,196 INFO L93 Difference]: Finished difference Result 59548 states and 73980 transitions. [2018-11-18 09:28:16,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 09:28:16,196 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 551 [2018-11-18 09:28:16,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:28:16,280 INFO L225 Difference]: With dead ends: 59548 [2018-11-18 09:28:16,280 INFO L226 Difference]: Without dead ends: 32395 [2018-11-18 09:28:16,357 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1131 GetRequests, 1109 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2018-11-18 09:28:16,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32395 states. [2018-11-18 09:28:16,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32395 to 32248. [2018-11-18 09:28:16,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32248 states. [2018-11-18 09:28:16,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32248 states to 32248 states and 37847 transitions. [2018-11-18 09:28:16,775 INFO L78 Accepts]: Start accepts. Automaton has 32248 states and 37847 transitions. Word has length 551 [2018-11-18 09:28:16,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:28:16,776 INFO L480 AbstractCegarLoop]: Abstraction has 32248 states and 37847 transitions. [2018-11-18 09:28:16,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:28:16,776 INFO L276 IsEmpty]: Start isEmpty. Operand 32248 states and 37847 transitions. [2018-11-18 09:28:16,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2018-11-18 09:28:16,785 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:28:16,786 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:16,786 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:28:16,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:16,787 INFO L82 PathProgramCache]: Analyzing trace with hash 185399179, now seen corresponding path program 1 times [2018-11-18 09:28:16,787 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:28:16,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:16,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:16,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:16,788 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:28:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 290 proven. 132 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-11-18 09:28:17,068 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:17,068 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:28:17,069 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 586 with the following transitions: [2018-11-18 09:28:17,069 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [924], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1048], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-18 09:28:17,073 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:28:17,073 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:28:17,453 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:28:17,453 INFO L272 AbstractInterpreter]: Visited 250 different actions 992 times. Merged at 8 different actions 27 times. Never widened. Performed 11447 root evaluator evaluations with a maximum evaluation depth of 15. Performed 11447 inverse root evaluator evaluations with a maximum inverse evaluation depth of 15. Found 6 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 09:28:17,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:17,454 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:28:17,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:17,454 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/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 09:28:17,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:17,460 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:28:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:17,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:28:17,656 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 509 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-11-18 09:28:17,656 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:28:17,881 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 290 proven. 132 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-11-18 09:28:17,896 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:28:17,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-18 09:28:17,896 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:28:17,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:28:17,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:28:17,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-18 09:28:17,898 INFO L87 Difference]: Start difference. First operand 32248 states and 37847 transitions. Second operand 9 states. [2018-11-18 09:28:21,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:28:21,103 INFO L93 Difference]: Finished difference Result 68409 states and 85412 transitions. [2018-11-18 09:28:21,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 09:28:21,104 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 585 [2018-11-18 09:28:21,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:28:21,226 INFO L225 Difference]: With dead ends: 68409 [2018-11-18 09:28:21,226 INFO L226 Difference]: Without dead ends: 37514 [2018-11-18 09:28:21,318 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1199 GetRequests, 1177 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2018-11-18 09:28:21,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37514 states. [2018-11-18 09:28:21,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37514 to 37482. [2018-11-18 09:28:21,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37482 states. [2018-11-18 09:28:21,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37482 states to 37482 states and 45855 transitions. [2018-11-18 09:28:21,949 INFO L78 Accepts]: Start accepts. Automaton has 37482 states and 45855 transitions. Word has length 585 [2018-11-18 09:28:21,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:28:21,950 INFO L480 AbstractCegarLoop]: Abstraction has 37482 states and 45855 transitions. [2018-11-18 09:28:21,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:28:21,950 INFO L276 IsEmpty]: Start isEmpty. Operand 37482 states and 45855 transitions. [2018-11-18 09:28:21,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 749 [2018-11-18 09:28:21,967 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:28:21,967 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-18 09:28:21,967 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:28:21,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:21,968 INFO L82 PathProgramCache]: Analyzing trace with hash -433362992, now seen corresponding path program 1 times [2018-11-18 09:28:21,968 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:28:21,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:21,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:21,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:21,969 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:28:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 502 proven. 132 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2018-11-18 09:28:22,455 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:22,455 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:28:22,455 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 749 with the following transitions: [2018-11-18 09:28:22,455 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [924], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1044], [1045], [1048], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-18 09:28:22,457 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:28:22,458 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:28:22,952 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:28:22,952 INFO L272 AbstractInterpreter]: Visited 251 different actions 1250 times. Merged at 9 different actions 42 times. Never widened. Performed 14608 root evaluator evaluations with a maximum evaluation depth of 15. Performed 14608 inverse root evaluator evaluations with a maximum inverse evaluation depth of 15. Found 11 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 09:28:22,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:22,958 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:28:22,958 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:22,958 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/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 09:28:22,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:22,964 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:28:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:23,049 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:28:23,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 849 proven. 2 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2018-11-18 09:28:23,256 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:28:23,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 502 proven. 132 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2018-11-18 09:28:23,691 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:28:23,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-18 09:28:23,691 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:28:23,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:28:23,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:28:23,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:28:23,692 INFO L87 Difference]: Start difference. First operand 37482 states and 45855 transitions. Second operand 9 states. [2018-11-18 09:28:26,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:28:26,460 INFO L93 Difference]: Finished difference Result 72649 states and 88430 transitions. [2018-11-18 09:28:26,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 09:28:26,461 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 748 [2018-11-18 09:28:26,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:28:26,557 INFO L225 Difference]: With dead ends: 72649 [2018-11-18 09:28:26,558 INFO L226 Difference]: Without dead ends: 36520 [2018-11-18 09:28:26,674 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1519 GetRequests, 1500 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:28:26,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36520 states. [2018-11-18 09:28:27,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36520 to 35549. [2018-11-18 09:28:27,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35549 states. [2018-11-18 09:28:27,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35549 states to 35549 states and 40212 transitions. [2018-11-18 09:28:27,128 INFO L78 Accepts]: Start accepts. Automaton has 35549 states and 40212 transitions. Word has length 748 [2018-11-18 09:28:27,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:28:27,129 INFO L480 AbstractCegarLoop]: Abstraction has 35549 states and 40212 transitions. [2018-11-18 09:28:27,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:28:27,129 INFO L276 IsEmpty]: Start isEmpty. Operand 35549 states and 40212 transitions. [2018-11-18 09:28:27,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2018-11-18 09:28:27,140 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:28:27,140 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 09:28:27,141 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:28:27,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:27,141 INFO L82 PathProgramCache]: Analyzing trace with hash 677166481, now seen corresponding path program 1 times [2018-11-18 09:28:27,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:28:27,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:27,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:27,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:27,143 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:28:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:27,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 525 proven. 39 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2018-11-18 09:28:27,455 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:27,455 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:28:27,455 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 810 with the following transitions: [2018-11-18 09:28:27,455 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [924], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1048], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1288], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-18 09:28:27,458 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:28:27,458 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:28:27,829 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:28:27,829 INFO L272 AbstractInterpreter]: Visited 251 different actions 999 times. Merged at 9 different actions 30 times. Never widened. Performed 11514 root evaluator evaluations with a maximum evaluation depth of 15. Performed 11514 inverse root evaluator evaluations with a maximum inverse evaluation depth of 15. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 09:28:27,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:27,830 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:28:27,830 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:27,830 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/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 09:28:27,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:27,836 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:28:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:27,935 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:28:28,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2018-11-18 09:28:28,233 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:28:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2018-11-18 09:28:28,442 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:28:28,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2018-11-18 09:28:28,443 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:28:28,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:28:28,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:28:28,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:28:28,444 INFO L87 Difference]: Start difference. First operand 35549 states and 40212 transitions. Second operand 3 states. [2018-11-18 09:28:29,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:28:29,362 INFO L93 Difference]: Finished difference Result 69745 states and 79009 transitions. [2018-11-18 09:28:29,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:28:29,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 809 [2018-11-18 09:28:29,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:28:29,428 INFO L225 Difference]: With dead ends: 69745 [2018-11-18 09:28:29,428 INFO L226 Difference]: Without dead ends: 35549 [2018-11-18 09:28:29,486 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1624 GetRequests, 1619 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:28:29,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35549 states. [2018-11-18 09:28:29,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35549 to 34859. [2018-11-18 09:28:29,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34859 states. [2018-11-18 09:28:29,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34859 states to 34859 states and 39246 transitions. [2018-11-18 09:28:29,864 INFO L78 Accepts]: Start accepts. Automaton has 34859 states and 39246 transitions. Word has length 809 [2018-11-18 09:28:29,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:28:29,865 INFO L480 AbstractCegarLoop]: Abstraction has 34859 states and 39246 transitions. [2018-11-18 09:28:29,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:28:29,865 INFO L276 IsEmpty]: Start isEmpty. Operand 34859 states and 39246 transitions. [2018-11-18 09:28:29,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1084 [2018-11-18 09:28:29,899 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:28:29,899 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:28:29,900 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:28:29,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:29,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1213455955, now seen corresponding path program 1 times [2018-11-18 09:28:29,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:28:29,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:29,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:29,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:29,901 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:28:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:30,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2174 backedges. 1325 proven. 156 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2018-11-18 09:28:30,521 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:30,521 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:28:30,521 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1084 with the following transitions: [2018-11-18 09:28:30,521 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1036], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1148], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1385], [1389], [1392], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-18 09:28:30,524 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:28:30,524 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:28:30,783 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:28:30,783 INFO L272 AbstractInterpreter]: Visited 262 different actions 773 times. Merged at 5 different actions 9 times. Never widened. Performed 8942 root evaluator evaluations with a maximum evaluation depth of 9. Performed 8942 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 09:28:30,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:30,784 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:28:31,414 INFO L227 lantSequenceWeakener]: Weakened 1080 states. On average, predicates are now at 80.16% of their original sizes. [2018-11-18 09:28:31,414 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:28:31,457 INFO L415 sIntCurrentIteration]: We unified 1082 AI predicates to 1082 [2018-11-18 09:28:31,458 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:28:31,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:28:31,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-11-18 09:28:31,458 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:28:31,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:28:31,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:28:31,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:28:31,459 INFO L87 Difference]: Start difference. First operand 34859 states and 39246 transitions. Second operand 9 states. [2018-11-18 09:28:49,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:28:49,197 INFO L93 Difference]: Finished difference Result 69396 states and 78186 transitions. [2018-11-18 09:28:49,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 09:28:49,197 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1083 [2018-11-18 09:28:49,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:28:49,254 INFO L225 Difference]: With dead ends: 69396 [2018-11-18 09:28:49,254 INFO L226 Difference]: Without dead ends: 34881 [2018-11-18 09:28:49,298 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1089 GetRequests, 1075 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 09:28:49,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34881 states. [2018-11-18 09:28:49,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34881 to 34861. [2018-11-18 09:28:49,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34861 states. [2018-11-18 09:28:49,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34861 states to 34861 states and 39201 transitions. [2018-11-18 09:28:49,658 INFO L78 Accepts]: Start accepts. Automaton has 34861 states and 39201 transitions. Word has length 1083 [2018-11-18 09:28:49,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:28:49,659 INFO L480 AbstractCegarLoop]: Abstraction has 34861 states and 39201 transitions. [2018-11-18 09:28:49,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:28:49,659 INFO L276 IsEmpty]: Start isEmpty. Operand 34861 states and 39201 transitions. [2018-11-18 09:28:49,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1119 [2018-11-18 09:28:49,691 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:28:49,692 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, 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, 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, 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, 2, 2, 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 09:28:49,692 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:28:49,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:49,692 INFO L82 PathProgramCache]: Analyzing trace with hash -918805582, now seen corresponding path program 1 times [2018-11-18 09:28:49,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:28:49,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:49,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:49,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:49,693 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:28:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:50,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2811 backedges. 1603 proven. 156 refuted. 0 times theorem prover too weak. 1052 trivial. 0 not checked. [2018-11-18 09:28:50,400 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:50,400 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:28:50,400 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1119 with the following transitions: [2018-11-18 09:28:50,400 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1036], [1037], [1041], [1044], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1148], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-18 09:28:50,403 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:28:50,403 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:28:50,828 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:28:50,828 INFO L272 AbstractInterpreter]: Visited 254 different actions 1028 times. Merged at 12 different actions 47 times. Widened at 1 different actions 1 times. Performed 11903 root evaluator evaluations with a maximum evaluation depth of 18. Performed 11903 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 13 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-18 09:28:50,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:50,835 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:28:50,835 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:50,835 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/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 09:28:50,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:50,841 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:28:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:50,995 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:28:51,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2811 backedges. 1100 proven. 2 refuted. 0 times theorem prover too weak. 1709 trivial. 0 not checked. [2018-11-18 09:28:51,347 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:28:51,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2811 backedges. 1100 proven. 2 refuted. 0 times theorem prover too weak. 1709 trivial. 0 not checked. [2018-11-18 09:28:51,877 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:28:51,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-18 09:28:51,878 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:28:51,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:28:51,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:28:51,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:28:51,879 INFO L87 Difference]: Start difference. First operand 34861 states and 39201 transitions. Second operand 9 states. [2018-11-18 09:28:54,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:28:54,371 INFO L93 Difference]: Finished difference Result 71276 states and 80665 transitions. [2018-11-18 09:28:54,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 09:28:54,371 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1118 [2018-11-18 09:28:54,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:28:54,422 INFO L225 Difference]: With dead ends: 71276 [2018-11-18 09:28:54,422 INFO L226 Difference]: Without dead ends: 28216 [2018-11-18 09:28:54,489 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2259 GetRequests, 2241 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2018-11-18 09:28:54,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28216 states. [2018-11-18 09:28:54,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28216 to 27171. [2018-11-18 09:28:54,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27171 states. [2018-11-18 09:28:54,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27171 states to 27171 states and 28765 transitions. [2018-11-18 09:28:54,785 INFO L78 Accepts]: Start accepts. Automaton has 27171 states and 28765 transitions. Word has length 1118 [2018-11-18 09:28:54,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:28:54,785 INFO L480 AbstractCegarLoop]: Abstraction has 27171 states and 28765 transitions. [2018-11-18 09:28:54,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:28:54,785 INFO L276 IsEmpty]: Start isEmpty. Operand 27171 states and 28765 transitions. [2018-11-18 09:28:54,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1591 [2018-11-18 09:28:54,817 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:28:54,817 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, 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, 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, 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, 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, 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] [2018-11-18 09:28:54,817 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:28:54,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:54,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1978153722, now seen corresponding path program 1 times [2018-11-18 09:28:54,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:28:54,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:54,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:54,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:28:54,819 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:28:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:55,970 INFO L134 CoverageAnalysis]: Checked inductivity of 5161 backedges. 1015 proven. 459 refuted. 0 times theorem prover too weak. 3687 trivial. 0 not checked. [2018-11-18 09:28:55,970 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:55,970 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:28:55,970 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1591 with the following transitions: [2018-11-18 09:28:55,970 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [680], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [964], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1044], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1176], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1320], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1412], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-18 09:28:55,973 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:28:55,973 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:28:56,589 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:28:56,589 INFO L272 AbstractInterpreter]: Visited 271 different actions 1091 times. Merged at 12 different actions 42 times. Widened at 1 different actions 1 times. Performed 12941 root evaluator evaluations with a maximum evaluation depth of 18. Performed 12941 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 14 fixpoints after 7 different actions. Largest state had 24 variables. [2018-11-18 09:28:56,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:28:56,590 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:28:56,590 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:28:56,591 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/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 09:28:56,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:28:56,597 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:28:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:28:56,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:28:57,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5161 backedges. 3418 proven. 2 refuted. 0 times theorem prover too weak. 1741 trivial. 0 not checked. [2018-11-18 09:28:57,541 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:28:58,290 INFO L134 CoverageAnalysis]: Checked inductivity of 5161 backedges. 1015 proven. 459 refuted. 0 times theorem prover too weak. 3687 trivial. 0 not checked. [2018-11-18 09:28:58,306 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:28:58,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2018-11-18 09:28:58,307 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:28:58,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:28:58,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:28:58,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 09:28:58,308 INFO L87 Difference]: Start difference. First operand 27171 states and 28765 transitions. Second operand 10 states. [2018-11-18 09:29:00,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:29:00,191 INFO L93 Difference]: Finished difference Result 49859 states and 52441 transitions. [2018-11-18 09:29:00,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 09:29:00,192 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1590 [2018-11-18 09:29:00,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:29:00,225 INFO L225 Difference]: With dead ends: 49859 [2018-11-18 09:29:00,225 INFO L226 Difference]: Without dead ends: 25060 [2018-11-18 09:29:00,259 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3211 GetRequests, 3187 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2018-11-18 09:29:00,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25060 states. [2018-11-18 09:29:00,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25060 to 22866. [2018-11-18 09:29:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22866 states. [2018-11-18 09:29:00,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22866 states to 22866 states and 23651 transitions. [2018-11-18 09:29:00,448 INFO L78 Accepts]: Start accepts. Automaton has 22866 states and 23651 transitions. Word has length 1590 [2018-11-18 09:29:00,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:29:00,449 INFO L480 AbstractCegarLoop]: Abstraction has 22866 states and 23651 transitions. [2018-11-18 09:29:00,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:29:00,449 INFO L276 IsEmpty]: Start isEmpty. Operand 22866 states and 23651 transitions. [2018-11-18 09:29:00,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1611 [2018-11-18 09:29:00,470 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:29:00,471 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, 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, 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, 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, 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, 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] [2018-11-18 09:29:00,471 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:29:00,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:29:00,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1321427120, now seen corresponding path program 1 times [2018-11-18 09:29:00,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:29:00,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:29:00,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:29:00,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:29:00,473 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:29:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:29:02,082 INFO L134 CoverageAnalysis]: Checked inductivity of 4642 backedges. 1124 proven. 552 refuted. 0 times theorem prover too weak. 2966 trivial. 0 not checked. [2018-11-18 09:29:02,082 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:29:02,083 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:29:02,083 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1611 with the following transitions: [2018-11-18 09:29:02,083 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [680], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1044], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1176], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1320], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1412], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1488], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-18 09:29:02,086 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:29:02,086 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:29:02,928 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:29:02,928 INFO L272 AbstractInterpreter]: Visited 289 different actions 1160 times. Merged at 10 different actions 39 times. Widened at 1 different actions 1 times. Performed 13973 root evaluator evaluations with a maximum evaluation depth of 22. Performed 13973 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 13 fixpoints after 7 different actions. Largest state had 24 variables. [2018-11-18 09:29:02,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:29:02,930 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:29:02,930 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:29:02,930 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/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 09:29:02,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:29:02,936 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:29:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:29:03,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:29:03,721 INFO L134 CoverageAnalysis]: Checked inductivity of 4642 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 4293 trivial. 0 not checked. [2018-11-18 09:29:03,721 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:29:04,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4642 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 4293 trivial. 0 not checked. [2018-11-18 09:29:04,358 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:29:04,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-11-18 09:29:04,359 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:29:04,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:29:04,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:29:04,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:29:04,360 INFO L87 Difference]: Start difference. First operand 22866 states and 23651 transitions. Second operand 3 states. [2018-11-18 09:29:04,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:29:04,913 INFO L93 Difference]: Finished difference Result 41967 states and 43472 transitions. [2018-11-18 09:29:04,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:29:04,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1610 [2018-11-18 09:29:04,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:29:04,914 INFO L225 Difference]: With dead ends: 41967 [2018-11-18 09:29:04,914 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 09:29:04,940 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3229 GetRequests, 3219 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:29:04,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 09:29:04,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 09:29:04,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 09:29:04,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 09:29:04,941 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1610 [2018-11-18 09:29:04,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:29:04,941 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:29:04,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:29:04,941 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:29:04,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:29:04,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 09:29:04,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:04,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:04,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:04,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:04,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:04,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:04,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:04,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,032 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,066 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,078 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,080 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,093 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,182 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,183 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,183 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,204 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,205 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,213 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,245 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,251 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,340 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,341 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,393 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,411 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,416 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,422 WARN L180 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 282 [2018-11-18 09:29:05,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,859 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,872 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,881 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,940 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,976 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:05,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,002 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,011 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,012 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,013 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,033 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,064 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,068 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,068 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,068 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:29:06,147 WARN L180 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 330 [2018-11-18 09:29:06,793 WARN L180 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 76 [2018-11-18 09:29:08,017 WARN L180 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 259 DAG size of output: 91 [2018-11-18 09:29:09,274 WARN L180 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 315 DAG size of output: 89 [2018-11-18 09:29:10,711 WARN L180 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 275 DAG size of output: 106 [2018-11-18 09:29:11,403 WARN L180 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 73 [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a16~0)| ~a16~0) (= |old(~a15~0)| ~a15~0) (= |old(~a12~0)| ~a12~0)) [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1497(lines 1497 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point calculate_output2EXIT(lines 1494 1765) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1687(lines 1687 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1704(lines 1704 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1638(lines 1638 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1663(lines 1663 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1597(lines 1597 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1721(lines 1721 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1622(lines 1622 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1746(lines 1746 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1515(lines 1515 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1573(lines 1573 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1540(lines 1540 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,411 INFO L425 ceAbstractionStarter]: For program point L1656(lines 1656 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1739(lines 1739 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1566(lines 1566 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1591(lines 1591 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1715(lines 1715 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1682(lines 1682 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1616(lines 1616 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1699(lines 1699 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1633(lines 1633 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1534(lines 1534 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1757(lines 1757 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1559(lines 1559 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1675(lines 1675 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1609(lines 1609 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1510(lines 1510 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,412 INFO L425 ceAbstractionStarter]: For program point L1733(lines 1733 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,413 INFO L421 ceAbstractionStarter]: At program point calculate_output2ENTRY(lines 1494 1765) the Hoare annotation is: (let ((.cse2 (< 0 (+ ~a18~0 156))) (.cse13 (= 8 |old(~a16~0)|)) (.cse19 (= |old(~a15~0)| ~a15~0)) (.cse20 (= ~a16~0 |old(~a16~0)|)) (.cse21 (= |old(~a12~0)| ~a12~0))) (let ((.cse11 (not (= 8 |old(~a12~0)|))) (.cse6 (not (= 9 |old(~a12~0)|))) (.cse7 (and .cse19 .cse20 .cse21)) (.cse0 (not .cse13)) (.cse18 (not (= 11 |old(~a16~0)|))) (.cse16 (not (= 6 |old(~a12~0)|))) (.cse17 (not (= 3 |old(~a15~0)|))) (.cse12 (= 10 |old(~a16~0)|)) (.cse10 (= 12 |old(~a16~0)|)) (.cse14 (not (= 5 |old(~a12~0)|))) (.cse8 (and (= |old(~a16~0)| ~a16~0) .cse19 .cse21)) (.cse15 (< |old(~a15~0)| 4)) (.cse1 (<= (+ |old(~a18~0)| 156) 0)) (.cse3 (= 4 |old(~a15~0)|)) (.cse4 (not (= 7 |old(~a12~0)|))) (.cse5 (< |old(~a16~0)| 12)) (.cse9 (and .cse19 .cse20 .cse2 .cse21))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (or .cse3 .cse5 .cse6) .cse7) (or .cse0 .cse3 .cse8 .cse6) (or .cse9 .cse10 .cse1 .cse11 .cse12 .cse13) (or .cse7 (or .cse3 .cse11)) (or .cse2 .cse10 .cse1 .cse3 .cse11) (or (or .cse0 .cse11) .cse7) (or .cse10 .cse1 .cse14 .cse2 .cse15) (or .cse1 .cse3 .cse16 .cse9) (or .cse10 .cse1 .cse12 .cse9 .cse6) (or (or .cse17 .cse18 .cse6) .cse7) (or .cse10 .cse8 .cse4 .cse12) (or .cse7 .cse10 .cse12 .cse13 .cse6 .cse15) (or .cse7 (or .cse0 .cse17 .cse14)) (or .cse17 .cse14 .cse18 (= (+ ~a18~0 87) 0) (not (= (+ |old(~a18~0)| 87) 0))) (or .cse10 .cse16 .cse8) (or .cse10 .cse1 .cse16 .cse2) (or .cse1 .cse17 .cse14 (= 0 |old(~a16~0)|) .cse9) (or .cse10 .cse1 .cse4 .cse12 .cse2 .cse13) (or .cse10 .cse14 .cse8 .cse15) (or .cse1 .cse3 .cse4 .cse5 .cse9)))) [2018-11-18 09:29:11,413 INFO L425 ceAbstractionStarter]: For program point L1527(lines 1527 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,413 INFO L425 ceAbstractionStarter]: For program point L1651(lines 1651 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,413 INFO L425 ceAbstractionStarter]: For program point L1585(lines 1585 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,413 INFO L425 ceAbstractionStarter]: For program point L1709(lines 1709 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,413 INFO L425 ceAbstractionStarter]: For program point L1503(lines 1503 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,413 INFO L425 ceAbstractionStarter]: For program point L1693(lines 1693 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,413 INFO L425 ceAbstractionStarter]: For program point L1553(lines 1553 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,413 INFO L425 ceAbstractionStarter]: For program point calculate_output2FINAL(lines 1494 1765) no Hoare annotation was computed. [2018-11-18 09:29:11,413 INFO L425 ceAbstractionStarter]: For program point L1669(lines 1669 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,413 INFO L425 ceAbstractionStarter]: For program point L1603(lines 1603 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L1727(lines 1727 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L1628(lines 1628 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L1752(lines 1752 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L1521(lines 1521 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L1645(lines 1645 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L1579(lines 1579 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L1546(lines 1546 1763) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L894(lines 894 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L828(lines 828 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L696(lines 696 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L1291(lines 1291 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L961(lines 961 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L763(lines 763 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,414 INFO L425 ceAbstractionStarter]: For program point L631(lines 631 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L367(lines 367 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L1358(lines 1358 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L235(lines 235 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L1160(lines 1160 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 130) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L421 ceAbstractionStarter]: At program point L1491(line 1491) the Hoare annotation is: (let ((.cse13 (= 8 |old(~a16~0)|)) (.cse2 (< 0 (+ ~a18~0 156))) (.cse21 (= |old(~a15~0)| ~a15~0)) (.cse22 (= ~a16~0 |old(~a16~0)|)) (.cse23 (= |old(~a12~0)| ~a12~0))) (let ((.cse11 (not (= 8 |old(~a12~0)|))) (.cse15 (not (= 11 |old(~a16~0)|))) (.cse7 (and .cse21 .cse22 .cse23)) (.cse6 (not (= 9 |old(~a12~0)|))) (.cse20 (not (= 6 |old(~a12~0)|))) (.cse12 (= 10 |old(~a16~0)|)) (.cse10 (= 12 |old(~a16~0)|)) (.cse8 (and (= |old(~a16~0)| ~a16~0) .cse21 .cse23)) (.cse19 (< |old(~a15~0)| 4)) (.cse1 (<= (+ |old(~a18~0)| 156) 0)) (.cse3 (= 4 |old(~a15~0)|)) (.cse4 (not (= 7 |old(~a12~0)|))) (.cse5 (< |old(~a16~0)| 12)) (.cse9 (and .cse21 .cse22 .cse2 .cse23)) (.cse16 (= |calculate_output_#in~input| 0)) (.cse0 (not .cse13)) (.cse14 (not (= 3 |old(~a15~0)|))) (.cse18 (not (= 5 |old(~a12~0)|))) (.cse17 (not (= calculate_output_~input 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (or .cse3 .cse5 .cse6) .cse7) (or .cse0 .cse3 .cse8 .cse6) (or .cse9 .cse10 .cse1 .cse11 .cse12 .cse13) (or .cse7 (or .cse3 .cse11)) (or (or .cse14 .cse11 .cse15 .cse16) .cse17) (or .cse2 .cse10 .cse1 .cse3 .cse11) (or (or .cse0 .cse11) .cse7) (or .cse10 .cse1 .cse18 .cse2 .cse19) (or .cse1 .cse3 .cse20 .cse9) (or .cse14 .cse18 .cse15 .cse16 (= (+ ~a18~0 87) 0) (not (= (+ |old(~a18~0)| 87) 0))) (or .cse10 .cse1 .cse12 .cse9 .cse6) (or .cse17 (or .cse1 .cse14 .cse4 .cse15 .cse16)) (or .cse17 (or .cse1 .cse14 .cse15 .cse16 .cse20)) (or .cse10 .cse8 .cse4 .cse12) (or .cse1 .cse14 .cse18 (= 0 |old(~a16~0)|) .cse16 (and .cse21 .cse17 .cse22 .cse2 .cse23)) (or (or .cse14 .cse15 .cse16 .cse6) (and .cse21 .cse22 .cse17 .cse23)) (or .cse7 .cse10 .cse12 .cse13 .cse6 .cse19) (or .cse10 .cse20 .cse8) (or .cse10 .cse1 .cse20 .cse2) (or .cse10 .cse1 .cse4 .cse12 .cse2 .cse13) (or .cse10 .cse18 .cse8 .cse19) (or .cse1 .cse3 .cse4 .cse5 .cse9) (or .cse16 (or .cse0 .cse14 .cse18) (and .cse17 .cse22 (and (= ~a15~0 3) (= ~a12~0 5))))))) [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L434(lines 434 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L1491-1(line 1491) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L1227(lines 1227 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L567(lines 567 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L501(lines 501 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L303(lines 303 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,415 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L1097(lines 1097 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L1031(lines 1031 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L899(lines 899 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L1428(lines 1428 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L834(lines 834 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L636(lines 636 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L1297(lines 1297 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L240(lines 240 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L967(lines 967 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L769(lines 769 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L703(lines 703 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L373(lines 373 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L1364(lines 1364 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L1166(lines 1166 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L440(lines 440 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L573(lines 573 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L309(lines 309 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L1234(lines 1234 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,416 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L1036(lines 1036 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L706(lines 706 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L508(lines 508 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L1103(lines 1103 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L905(lines 905 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L641(lines 641 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L443(lines 443 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L1434(lines 1434 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L840(lines 840 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L1303(lines 1303 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L246(lines 246 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L775(lines 775 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L1370(lines 1370 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L1172(lines 1172 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L974(lines 974 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L578(lines 578 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,417 INFO L425 ceAbstractionStarter]: For program point L380(lines 380 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L315(lines 315 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L1042(lines 1042 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L778(lines 778 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L712(lines 712 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L1241(lines 1241 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L1175(lines 1175 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L1109(lines 1109 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L515(lines 515 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L449(lines 449 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L1440(lines 1440 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L912(lines 912 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L846(lines 846 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L648(lines 648 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L1375(lines 1375 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L1309(lines 1309 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L252(lines 252 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,418 INFO L425 ceAbstractionStarter]: For program point L979(lines 979 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L584(lines 584 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L386(lines 386 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L717(lines 717 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L321(lines 321 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L1114(lines 1114 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L1048(lines 1048 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L784(lines 784 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L1247(lines 1247 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L1181(lines 1181 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L917(lines 917 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L851(lines 851 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L521(lines 521 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L1446(lines 1446 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L1314(lines 1314 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,419 INFO L425 ceAbstractionStarter]: For program point L257(lines 257 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 23 1492) the Hoare annotation is: (let ((.cse7 (< 0 (+ ~a18~0 156))) (.cse20 (= |old(~a15~0)| ~a15~0)) (.cse21 (= ~a16~0 |old(~a16~0)|)) (.cse22 (= |old(~a12~0)| ~a12~0)) (.cse16 (= 8 |old(~a16~0)|))) (let ((.cse5 (not .cse16)) (.cse14 (not (= 8 |old(~a12~0)|))) (.cse0 (and .cse20 .cse21 .cse22)) (.cse4 (not (= 9 |old(~a12~0)|))) (.cse2 (not (= 11 |old(~a16~0)|))) (.cse19 (not (= 6 |old(~a12~0)|))) (.cse15 (= 10 |old(~a16~0)|)) (.cse13 (= 12 |old(~a16~0)|)) (.cse11 (and (= |old(~a16~0)| ~a16~0) .cse20 .cse22)) (.cse18 (< |old(~a15~0)| 4)) (.cse8 (= 4 |old(~a15~0)|)) (.cse9 (not (= 7 |old(~a12~0)|))) (.cse10 (< |old(~a16~0)| 12)) (.cse6 (<= (+ |old(~a18~0)| 156) 0)) (.cse1 (not (= 3 |old(~a15~0)|))) (.cse17 (not (= 5 |old(~a12~0)|))) (.cse12 (and .cse20 .cse21 .cse7 .cse22)) (.cse3 (= |calculate_output_#in~input| 0))) (and (or .cse0 (or .cse1 .cse2 .cse3 .cse4)) (or .cse5 .cse6 .cse7 .cse8 .cse9) (or (or .cse8 .cse10 .cse4) .cse0) (or .cse5 .cse8 .cse11 .cse4) (or .cse12 .cse13 .cse6 .cse14 .cse15 .cse16) (or .cse0 (or .cse8 .cse14)) (or .cse0 .cse3 (or .cse5 .cse1 .cse17)) (or .cse7 .cse13 .cse6 .cse8 .cse14) (or (or .cse5 .cse14) .cse0) (or .cse13 .cse6 .cse17 .cse7 .cse18) (or .cse6 .cse8 .cse19 .cse12) (or .cse13 .cse6 .cse15 .cse12 .cse4) (or .cse13 .cse11 .cse9 .cse15) (or .cse0 .cse13 .cse15 .cse16 .cse4 .cse18) (or .cse13 .cse19 .cse11) (or .cse1 .cse17 (= (+ ~a18~0 87) 0) .cse2 .cse3 (not (= (+ |old(~a18~0)| 87) 0))) (or .cse13 .cse6 .cse19 .cse7) (or .cse13 .cse6 .cse9 .cse15 .cse7 .cse16) (or .cse13 .cse17 .cse11 .cse18) (or .cse6 .cse8 .cse9 .cse10 .cse12) (or .cse6 .cse1 .cse17 (= 0 |old(~a16~0)|) .cse12 .cse3)))) [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L1381(lines 1381 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L655(lines 655 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L589(lines 589 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L457(lines 457 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L391(lines 391 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L1250(lines 1250 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L986(lines 986 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L1449(lines 1449 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L789(lines 789 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L723(lines 723 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L327(lines 327 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L1120(lines 1120 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L922(lines 922 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L262(lines 262 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,420 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L1187(lines 1187 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L1055(lines 1055 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L857(lines 857 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L527(lines 527 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L1386(lines 1386 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L594(lines 594 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L1321(lines 1321 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L661(lines 661 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L463(lines 463 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L1256(lines 1256 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L728(lines 728 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L398(lines 398 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L1125(lines 1125 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L993(lines 993 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L1456(lines 1456 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L333(lines 333 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,421 INFO L425 ceAbstractionStarter]: For program point L796(lines 796 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L664(lines 664 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L268(lines 268 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L1193(lines 1193 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L1061(lines 1061 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L929(lines 929 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L863(lines 863 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L533(lines 533 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L1392(lines 1392 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L600(lines 600 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L1327(lines 1327 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L204-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L469(lines 469 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L1262(lines 1262 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L205(line 205) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L734(lines 734 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L1461(lines 1461 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L404(lines 404 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L338(lines 338 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,422 INFO L425 ceAbstractionStarter]: For program point L1131(lines 1131 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L999(lines 999 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L802(lines 802 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L670(lines 670 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L538(lines 538 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L1397(lines 1397 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L274(lines 274 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L1067(lines 1067 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L935(lines 935 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L869(lines 869 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L1200(lines 1200 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L606(lines 606 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L1267(lines 1267 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L1466(lines 1466 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L1334(lines 1334 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L476(lines 476 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L1137(lines 1137 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L1005(lines 1005 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,423 INFO L425 ceAbstractionStarter]: For program point L741(lines 741 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L543(lines 543 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L411(lines 411 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L279(lines 279 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L213(lines 213 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L808(lines 808 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L1403(lines 1403 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L1205(lines 1205 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L1073(lines 1073 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L875(lines 875 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L677(lines 677 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L942(lines 942 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L612(lines 612 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,424 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L1472(lines 1472 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L1274(lines 1274 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L746(lines 746 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L680(lines 680 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L548(lines 548 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L350(lines 350 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L1341(lines 1341 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L1143(lines 1143 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L1011(lines 1011 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L483(lines 483 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L417(lines 417 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L285(lines 285 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,425 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L1409(lines 1409 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L1211(lines 1211 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L1079(lines 1079 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L815(lines 815 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L948(lines 948 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L882(lines 882 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L618(lines 618 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L1477(lines 1477 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2018-11-18 09:29:11,426 INFO L425 ceAbstractionStarter]: For program point L24-2(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L1280(lines 1280 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L1214(lines 1214 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L752(lines 752 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L686(lines 686 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L554(lines 554 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L356(lines 356 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L1347(lines 1347 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L290(lines 290 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L1149(lines 1149 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L489(lines 489 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,427 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L1018(lines 1018 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L424(lines 424 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L1415(lines 1415 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L1086(lines 1086 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L954(lines 954 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L888(lines 888 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L822(lines 822 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L624(lines 624 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,428 INFO L425 ceAbstractionStarter]: For program point L691(lines 691 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L1484(lines 1484 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L427(lines 427 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L1286(lines 1286 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L229(lines 229 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L1220(lines 1220 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L758(lines 758 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L560(lines 560 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L1353(lines 1353 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L1155(lines 1155 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L495(lines 495 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L297(lines 297 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,429 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,430 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,430 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 23 1492) no Hoare annotation was computed. [2018-11-18 09:29:11,430 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 09:29:11,430 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 09:29:11,430 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 09:29:11,430 INFO L425 ceAbstractionStarter]: For program point L1025(lines 1025 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,430 INFO L425 ceAbstractionStarter]: For program point L1422(lines 1422 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,430 INFO L425 ceAbstractionStarter]: For program point L1092(lines 1092 1490) no Hoare annotation was computed. [2018-11-18 09:29:11,430 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:29:11,430 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a16~0 11) (= ~a15~0 3) (= ~a12~0 5) (= (+ ~a18~0 87) 0)) [2018-11-18 09:29:11,430 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:29:11,430 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:29:11,430 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 1767 1783) the Hoare annotation is: (or (and (= (+ ~a18~0 87) 0) (= |old(~a15~0)| ~a15~0) (= ~a16~0 |old(~a16~0)|) (= |old(~a12~0)| ~a12~0)) (not (= 3 |old(~a15~0)|)) (not (= 5 |old(~a12~0)|)) (not (= 11 |old(~a16~0)|)) (not (= (+ |old(~a18~0)| 87) 0))) [2018-11-18 09:29:11,431 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 1767 1783) no Hoare annotation was computed. [2018-11-18 09:29:11,431 INFO L421 ceAbstractionStarter]: At program point L1781(line 1781) the Hoare annotation is: (let ((.cse2 (<= 4 ~a15~0)) (.cse5 (= ~a12~0 5)) (.cse0 (= 6 ~a12~0)) (.cse9 (<= ~a16~0 |old(~a16~0)|)) (.cse7 (= 8 ~a12~0)) (.cse3 (not (= main_~input~0 0))) (.cse4 (= ~a15~0 3)) (.cse6 (< 0 (+ ~a18~0 156))) (.cse10 (not (= ~a16~0 10))) (.cse13 (= ~a12~0 7)) (.cse1 (not (= ~a16~0 12))) (.cse12 (= ~a16~0 8)) (.cse11 (= 9 ~a12~0)) (.cse8 (not (= ~a15~0 4)))) (or (not (= 11 |old(~a16~0)|)) (and .cse0 .cse1) (and .cse2 .cse1 (= 5 ~a12~0)) (not (= (+ |old(~a18~0)| 87) 0)) (and (not (= ~a16~0 0)) .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8) (not (= 3 |old(~a15~0)|)) (and .cse9 .cse10 .cse11 (not .cse12) .cse2) (and .cse12 .cse7) (and .cse10 .cse13 .cse1 .cse6) (and .cse3 (and .cse12 .cse4 .cse5)) (and (<= 12 ~a16~0) .cse11 .cse8) (and .cse0 .cse8 .cse6) (and .cse9 .cse10 .cse13) (and .cse10 .cse11 .cse8 .cse6) (and .cse10 .cse7 .cse1 .cse6) (and .cse3 .cse11 .cse4 (= ~a16~0 11)) (and .cse12 .cse11 .cse6) (and .cse10 .cse8 .cse13 .cse6) (not (= 5 |old(~a12~0)|)) (and .cse10 .cse8 .cse13 .cse1) (and .cse12 .cse11 .cse8))) [2018-11-18 09:29:11,431 INFO L425 ceAbstractionStarter]: For program point L1781-1(line 1781) no Hoare annotation was computed. [2018-11-18 09:29:11,431 INFO L425 ceAbstractionStarter]: For program point L1778(line 1778) no Hoare annotation was computed. [2018-11-18 09:29:11,431 INFO L425 ceAbstractionStarter]: For program point L1773-1(lines 1773 1782) no Hoare annotation was computed. [2018-11-18 09:29:11,431 INFO L421 ceAbstractionStarter]: At program point L1773-3(lines 1773 1782) the Hoare annotation is: (let ((.cse2 (<= 4 ~a15~0)) (.cse6 (= ~a12~0 5)) (.cse0 (= 6 ~a12~0)) (.cse8 (<= ~a16~0 |old(~a16~0)|)) (.cse5 (= ~a15~0 3)) (.cse3 (= 8 ~a12~0)) (.cse7 (< 0 (+ ~a18~0 156))) (.cse9 (not (= ~a16~0 10))) (.cse12 (= ~a12~0 7)) (.cse1 (not (= ~a16~0 12))) (.cse11 (= ~a16~0 8)) (.cse10 (= 9 ~a12~0)) (.cse4 (not (= ~a15~0 4)))) (or (not (= 11 |old(~a16~0)|)) (and .cse0 .cse1) (and .cse2 .cse1 (= 5 ~a12~0)) (not (= (+ |old(~a18~0)| 87) 0)) (and .cse3 .cse4) (not (= 3 |old(~a15~0)|)) (and (not (= ~a16~0 0)) .cse5 .cse6 .cse7) (and .cse8 .cse9 .cse10 (not .cse11) .cse2) (and .cse11 .cse3) (and .cse11 .cse5 .cse6) (and .cse9 .cse12 .cse1 .cse7) (and (<= 12 ~a16~0) .cse10 .cse4) (and .cse0 .cse4 .cse7) (and .cse8 .cse9 .cse12) (and .cse9 .cse10 .cse4 .cse7) (and .cse10 (and (= ~a16~0 11) .cse5)) (and .cse9 .cse3 .cse1 .cse7) (and .cse11 .cse10 .cse7) (and .cse9 .cse4 .cse12 .cse7) (not (= 5 |old(~a12~0)|)) (and .cse9 .cse4 .cse12 .cse1) (and .cse11 .cse10 .cse4))) [2018-11-18 09:29:11,431 INFO L425 ceAbstractionStarter]: For program point L1773-4(lines 1767 1783) no Hoare annotation was computed. [2018-11-18 09:29:11,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:29:11 BoogieIcfgContainer [2018-11-18 09:29:11,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:29:11,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:29:11,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:29:11,446 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:29:11,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:25:42" (3/4) ... [2018-11-18 09:29:11,449 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:29:11,453 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 09:29:11,453 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output2 [2018-11-18 09:29:11,453 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 09:29:11,454 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 09:29:11,473 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 09:29:11,475 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 09:29:11,507 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((!(11 == \old(a16)) || (6 == a12 && !(a16 == 12))) || ((4 <= a15 && !(a16 == 12)) && 5 == a12)) || !(\old(a18) + 87 == 0)) || (8 == a12 && !(a15 == 4))) || !(3 == \old(a15))) || (((!(a16 == 0) && a15 == 3) && a12 == 5) && 0 < a18 + 156)) || ((((a16 <= \old(a16) && !(a16 == 10)) && 9 == a12) && !(a16 == 8)) && 4 <= a15)) || (a16 == 8 && 8 == a12)) || ((a16 == 8 && a15 == 3) && a12 == 5)) || (((!(a16 == 10) && a12 == 7) && !(a16 == 12)) && 0 < a18 + 156)) || ((12 <= a16 && 9 == a12) && !(a15 == 4))) || ((6 == a12 && !(a15 == 4)) && 0 < a18 + 156)) || ((a16 <= \old(a16) && !(a16 == 10)) && a12 == 7)) || (((!(a16 == 10) && 9 == a12) && !(a15 == 4)) && 0 < a18 + 156)) || (9 == a12 && a16 == 11 && a15 == 3)) || (((!(a16 == 10) && 8 == a12) && !(a16 == 12)) && 0 < a18 + 156)) || ((a16 == 8 && 9 == a12) && 0 < a18 + 156)) || (((!(a16 == 10) && !(a15 == 4)) && a12 == 7) && 0 < a18 + 156)) || !(5 == \old(a12))) || (((!(a16 == 10) && !(a15 == 4)) && a12 == 7) && !(a16 == 12))) || ((a16 == 8 && 9 == a12) && !(a15 == 4)) [2018-11-18 09:29:11,676 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e984a23e-561e-47c7-a8e9-3cee96d55c8d/bin-2019/utaipan/witness.graphml [2018-11-18 09:29:11,676 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:29:11,676 INFO L168 Benchmark]: Toolchain (without parser) took 211162.63 ms. Allocated memory was 1.0 GB in the beginning and 5.2 GB in the end (delta: 4.2 GB). Free memory was 949.5 MB in the beginning and 1.5 GB in the end (delta: -523.0 MB). Peak memory consumption was 3.6 GB. Max. memory is 11.5 GB. [2018-11-18 09:29:11,677 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:29:11,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -161.2 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:29:11,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.20 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:29:11,678 INFO L168 Benchmark]: Boogie Preprocessor took 75.98 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:29:11,678 INFO L168 Benchmark]: RCFGBuilder took 1569.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 850.4 MB in the end (delta: 246.1 MB). Peak memory consumption was 246.1 MB. Max. memory is 11.5 GB. [2018-11-18 09:29:11,678 INFO L168 Benchmark]: TraceAbstraction took 208490.80 ms. Allocated memory was 1.2 GB in the beginning and 5.2 GB in the end (delta: 4.0 GB). Free memory was 850.4 MB in the beginning and 1.5 GB in the end (delta: -694.8 MB). Peak memory consumption was 3.3 GB. Max. memory is 11.5 GB. [2018-11-18 09:29:11,678 INFO L168 Benchmark]: Witness Printer took 230.09 ms. Allocated memory is still 5.2 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:29:11,680 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 755.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -161.2 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.20 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.98 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1569.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 850.4 MB in the end (delta: 246.1 MB). Peak memory consumption was 246.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 208490.80 ms. Allocated memory was 1.2 GB in the beginning and 5.2 GB in the end (delta: 4.0 GB). Free memory was 850.4 MB in the beginning and 1.5 GB in the end (delta: -694.8 MB). Peak memory consumption was 3.3 GB. Max. memory is 11.5 GB. * Witness Printer took 230.09 ms. Allocated memory is still 5.2 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 130]: 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: 1773]: Loop Invariant Derived loop invariant: ((((((((((((((((((((!(11 == \old(a16)) || (6 == a12 && !(a16 == 12))) || ((4 <= a15 && !(a16 == 12)) && 5 == a12)) || !(\old(a18) + 87 == 0)) || (8 == a12 && !(a15 == 4))) || !(3 == \old(a15))) || (((!(a16 == 0) && a15 == 3) && a12 == 5) && 0 < a18 + 156)) || ((((a16 <= \old(a16) && !(a16 == 10)) && 9 == a12) && !(a16 == 8)) && 4 <= a15)) || (a16 == 8 && 8 == a12)) || ((a16 == 8 && a15 == 3) && a12 == 5)) || (((!(a16 == 10) && a12 == 7) && !(a16 == 12)) && 0 < a18 + 156)) || ((12 <= a16 && 9 == a12) && !(a15 == 4))) || ((6 == a12 && !(a15 == 4)) && 0 < a18 + 156)) || ((a16 <= \old(a16) && !(a16 == 10)) && a12 == 7)) || (((!(a16 == 10) && 9 == a12) && !(a15 == 4)) && 0 < a18 + 156)) || (9 == a12 && a16 == 11 && a15 == 3)) || (((!(a16 == 10) && 8 == a12) && !(a16 == 12)) && 0 < a18 + 156)) || ((a16 == 8 && 9 == a12) && 0 < a18 + 156)) || (((!(a16 == 10) && !(a15 == 4)) && a12 == 7) && 0 < a18 + 156)) || !(5 == \old(a12))) || (((!(a16 == 10) && !(a15 == 4)) && a12 == 7) && !(a16 == 12))) || ((a16 == 8 && 9 == a12) && !(a15 == 4)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. SAFE Result, 208.4s OverallTime, 17 OverallIterations, 10 TraceHistogramMax, 177.5s AutomataDifference, 0.0s DeadEndRemovalTime, 6.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 3557 SDtfs, 31447 SDslu, 2818 SDs, 0 SdLazy, 48715 SolverSat, 9591 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 153.4s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 15927 GetRequests, 15718 SyntacticMatches, 19 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37482occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.6s AbstIntTime, 10 AbstIntIterations, 3 AbstIntStrong, 0.9980900782812389 AbsIntWeakeningRatio, 0.05745062836624776 AbsIntAvgWeakeningVarsNumRemoved, 15.659485338120886 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 5713 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 3403 PreInvPairs, 3720 NumberOfFragments, 2244 HoareAnnotationTreeSize, 3403 FomulaSimplifications, 287164 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 39171 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 16851 NumberOfCodeBlocks, 16851 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 23831 ConstructedInterpolants, 0 QuantifiedInterpolants, 50106493 SizeOfPredicates, 5 NumberOfNonLiveVariables, 9226 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 31 InterpolantComputations, 11 PerfectInterpolantSequences, 48034/50611 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...