./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label49_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label49_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/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 19252d9b977a1b2caf6b350b292ab440fef944ce ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:13:57,392 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:13:57,393 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:13:57,399 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:13:57,400 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:13:57,400 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:13:57,401 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:13:57,402 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:13:57,403 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:13:57,404 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:13:57,404 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:13:57,405 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:13:57,406 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:13:57,406 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:13:57,407 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:13:57,407 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:13:57,408 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:13:57,409 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:13:57,410 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:13:57,411 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:13:57,412 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:13:57,413 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:13:57,414 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:13:57,414 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:13:57,414 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:13:57,415 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:13:57,415 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:13:57,416 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:13:57,416 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:13:57,417 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:13:57,417 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:13:57,418 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:13:57,418 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:13:57,418 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:13:57,419 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:13:57,419 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:13:57,419 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 13:13:57,428 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:13:57,428 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:13:57,429 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:13:57,429 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:13:57,429 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 13:13:57,429 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 13:13:57,430 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 13:13:57,430 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 13:13:57,430 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 13:13:57,430 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 13:13:57,430 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 13:13:57,430 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 13:13:57,430 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 13:13:57,430 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:13:57,431 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:13:57,431 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:13:57,431 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:13:57,431 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:13:57,431 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:13:57,431 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:13:57,431 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:13:57,431 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:13:57,432 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:13:57,432 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:13:57,432 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:13:57,432 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:13:57,432 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:13:57,432 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:13:57,432 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:13:57,432 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:13:57,432 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:13:57,433 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:13:57,434 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:13:57,435 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 13:13:57,435 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:13:57,435 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:13:57,435 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:13:57,435 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_440b14f7-07a4-4018-b3ef-97c99f2a185a/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 -> 19252d9b977a1b2caf6b350b292ab440fef944ce [2018-11-23 13:13:57,456 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:13:57,464 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:13:57,465 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:13:57,466 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:13:57,466 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:13:57,467 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label49_true-unreach-call_false-termination.c [2018-11-23 13:13:57,501 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/bin-2019/utaipan/data/e78bbd809/444abd55a5c84578bdccfe0497d93d3a/FLAG52d71ad1f [2018-11-23 13:13:57,948 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:13:57,948 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/sv-benchmarks/c/eca-rers2012/Problem14_label49_true-unreach-call_false-termination.c [2018-11-23 13:13:57,958 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/bin-2019/utaipan/data/e78bbd809/444abd55a5c84578bdccfe0497d93d3a/FLAG52d71ad1f [2018-11-23 13:13:57,969 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/bin-2019/utaipan/data/e78bbd809/444abd55a5c84578bdccfe0497d93d3a [2018-11-23 13:13:57,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:13:57,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:13:57,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:13:57,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:13:57,975 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:13:57,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:13:57" (1/1) ... [2018-11-23 13:13:57,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342d28a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:57, skipping insertion in model container [2018-11-23 13:13:57,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:13:57" (1/1) ... [2018-11-23 13:13:57,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:13:58,018 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:13:58,263 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:13:58,266 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:13:58,348 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:13:58,360 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:13:58,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:58 WrapperNode [2018-11-23 13:13:58,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:13:58,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:13:58,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:13:58,361 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:13:58,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:58" (1/1) ... [2018-11-23 13:13:58,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:58" (1/1) ... [2018-11-23 13:13:58,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:13:58,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:13:58,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:13:58,439 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:13:58,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:58" (1/1) ... [2018-11-23 13:13:58,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:58" (1/1) ... [2018-11-23 13:13:58,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:58" (1/1) ... [2018-11-23 13:13:58,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:58" (1/1) ... [2018-11-23 13:13:58,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:58" (1/1) ... [2018-11-23 13:13:58,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:58" (1/1) ... [2018-11-23 13:13:58,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:58" (1/1) ... [2018-11-23 13:13:58,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:13:58,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:13:58,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:13:58,492 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:13:58,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/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 [2018-11-23 13:13:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 13:13:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:13:58,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:13:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 13:13:58,527 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 13:13:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:13:58,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:13:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:13:58,528 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:13:59,504 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:13:59,504 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 13:13:59,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:13:59 BoogieIcfgContainer [2018-11-23 13:13:59,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:13:59,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:13:59,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:13:59,507 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:13:59,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:13:57" (1/3) ... [2018-11-23 13:13:59,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46579931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:13:59, skipping insertion in model container [2018-11-23 13:13:59,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:58" (2/3) ... [2018-11-23 13:13:59,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46579931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:13:59, skipping insertion in model container [2018-11-23 13:13:59,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:13:59" (3/3) ... [2018-11-23 13:13:59,510 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label49_true-unreach-call_false-termination.c [2018-11-23 13:13:59,516 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:13:59,521 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:13:59,531 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:13:59,554 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:13:59,554 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:13:59,554 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:13:59,554 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:13:59,554 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:13:59,554 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:13:59,554 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:13:59,554 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:13:59,571 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-11-23 13:13:59,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-23 13:13:59,577 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:13:59,577 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:13:59,579 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:13:59,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:13:59,583 INFO L82 PathProgramCache]: Analyzing trace with hash -989018502, now seen corresponding path program 1 times [2018-11-23 13:13:59,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:13:59,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:13:59,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:13:59,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:13:59,615 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:13:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:13:59,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:13:59,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:13:59,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:13:59,803 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:13:59,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 13:13:59,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 13:13:59,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:13:59,817 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2018-11-23 13:14:00,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:00,862 INFO L93 Difference]: Finished difference Result 890 states and 1607 transitions. [2018-11-23 13:14:00,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 13:14:00,863 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2018-11-23 13:14:00,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:00,874 INFO L225 Difference]: With dead ends: 890 [2018-11-23 13:14:00,874 INFO L226 Difference]: Without dead ends: 630 [2018-11-23 13:14:00,878 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:14:00,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2018-11-23 13:14:00,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2018-11-23 13:14:00,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2018-11-23 13:14:00,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 959 transitions. [2018-11-23 13:14:00,940 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 959 transitions. Word has length 65 [2018-11-23 13:14:00,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:00,940 INFO L480 AbstractCegarLoop]: Abstraction has 630 states and 959 transitions. [2018-11-23 13:14:00,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 13:14:00,941 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 959 transitions. [2018-11-23 13:14:00,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-11-23 13:14:00,947 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:00,947 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:14:00,949 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:00,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:00,949 INFO L82 PathProgramCache]: Analyzing trace with hash -2034317014, now seen corresponding path program 1 times [2018-11-23 13:14:00,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:00,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:00,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:00,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:00,951 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:01,088 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:14:01,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:14:01,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:14:01,088 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:01,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 13:14:01,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 13:14:01,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:14:01,090 INFO L87 Difference]: Start difference. First operand 630 states and 959 transitions. Second operand 4 states. [2018-11-23 13:14:01,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:01,966 INFO L93 Difference]: Finished difference Result 2346 states and 3731 transitions. [2018-11-23 13:14:01,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 13:14:01,967 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2018-11-23 13:14:01,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:01,976 INFO L225 Difference]: With dead ends: 2346 [2018-11-23 13:14:01,977 INFO L226 Difference]: Without dead ends: 1722 [2018-11-23 13:14:01,982 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:14:01,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2018-11-23 13:14:02,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1722. [2018-11-23 13:14:02,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1722 states. [2018-11-23 13:14:02,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2512 transitions. [2018-11-23 13:14:02,035 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2512 transitions. Word has length 177 [2018-11-23 13:14:02,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:02,036 INFO L480 AbstractCegarLoop]: Abstraction has 1722 states and 2512 transitions. [2018-11-23 13:14:02,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 13:14:02,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2512 transitions. [2018-11-23 13:14:02,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-11-23 13:14:02,064 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:02,064 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2018-11-23 13:14:02,065 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:02,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:02,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1543638766, now seen corresponding path program 1 times [2018-11-23 13:14:02,065 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:02,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:02,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:02,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:02,066 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:02,229 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:14:02,229 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:14:02,229 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:14:02,230 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 260 with the following transitions: [2018-11-23 13:14:02,231 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 13:14:02,263 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:14:02,263 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:14:02,550 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 13:14:02,551 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Performed 1020 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1020 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2018-11-23 13:14:02,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:02,568 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 13:14:02,945 INFO L227 lantSequenceWeakener]: Weakened 250 states. On average, predicates are now at 78.13% of their original sizes. [2018-11-23 13:14:02,945 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 13:14:02,996 INFO L415 sIntCurrentIteration]: We unified 258 AI predicates to 258 [2018-11-23 13:14:02,996 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 13:14:02,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:14:02,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-23 13:14:02,997 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:02,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:14:02,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:14:02,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:14:02,998 INFO L87 Difference]: Start difference. First operand 1722 states and 2512 transitions. Second operand 6 states. [2018-11-23 13:14:13,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:13,582 INFO L93 Difference]: Finished difference Result 3621 states and 5256 transitions. [2018-11-23 13:14:13,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 13:14:13,582 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 259 [2018-11-23 13:14:13,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:13,590 INFO L225 Difference]: With dead ends: 3621 [2018-11-23 13:14:13,590 INFO L226 Difference]: Without dead ends: 1905 [2018-11-23 13:14:13,594 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 259 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 13:14:13,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2018-11-23 13:14:13,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1904. [2018-11-23 13:14:13,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1904 states. [2018-11-23 13:14:13,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2701 transitions. [2018-11-23 13:14:13,632 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2701 transitions. Word has length 259 [2018-11-23 13:14:13,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:13,632 INFO L480 AbstractCegarLoop]: Abstraction has 1904 states and 2701 transitions. [2018-11-23 13:14:13,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:14:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2701 transitions. [2018-11-23 13:14:13,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-11-23 13:14:13,639 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:13,640 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-11-23 13:14:13,640 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:13,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:13,640 INFO L82 PathProgramCache]: Analyzing trace with hash 717046090, now seen corresponding path program 1 times [2018-11-23 13:14:13,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:13,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:13,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:13,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:13,643 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:14,009 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 259 proven. 161 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 13:14:14,009 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:14:14,009 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:14:14,009 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 344 with the following transitions: [2018-11-23 13:14:14,009 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 13:14:14,012 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:14:14,012 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:14:14,162 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 13:14:14,162 INFO L272 AbstractInterpreter]: Visited 120 different actions 233 times. Merged at 3 different actions 3 times. Never widened. Performed 2099 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2099 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 13:14:14,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:14,177 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 13:14:14,471 INFO L227 lantSequenceWeakener]: Weakened 340 states. On average, predicates are now at 77.96% of their original sizes. [2018-11-23 13:14:14,471 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 13:14:14,536 INFO L415 sIntCurrentIteration]: We unified 342 AI predicates to 342 [2018-11-23 13:14:14,536 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 13:14:14,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:14:14,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-11-23 13:14:14,537 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:14,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 13:14:14,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 13:14:14,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 13:14:14,539 INFO L87 Difference]: Start difference. First operand 1904 states and 2701 transitions. Second operand 10 states. [2018-11-23 13:15:07,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:15:07,303 INFO L93 Difference]: Finished difference Result 4363 states and 6156 transitions. [2018-11-23 13:15:07,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 13:15:07,303 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 343 [2018-11-23 13:15:07,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:15:07,309 INFO L225 Difference]: With dead ends: 4363 [2018-11-23 13:15:07,309 INFO L226 Difference]: Without dead ends: 2647 [2018-11-23 13:15:07,312 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 351 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-23 13:15:07,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2018-11-23 13:15:07,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 2645. [2018-11-23 13:15:07,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2645 states. [2018-11-23 13:15:07,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3530 transitions. [2018-11-23 13:15:07,346 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3530 transitions. Word has length 343 [2018-11-23 13:15:07,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:15:07,346 INFO L480 AbstractCegarLoop]: Abstraction has 2645 states and 3530 transitions. [2018-11-23 13:15:07,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 13:15:07,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3530 transitions. [2018-11-23 13:15:07,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2018-11-23 13:15:07,352 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:15:07,352 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:15:07,352 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:15:07,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:07,352 INFO L82 PathProgramCache]: Analyzing trace with hash -450068127, now seen corresponding path program 1 times [2018-11-23 13:15:07,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:15:07,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:07,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:15:07,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:07,353 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:15:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:15:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 185 proven. 267 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 13:15:07,931 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:15:07,931 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:15:07,932 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 395 with the following transitions: [2018-11-23 13:15:07,932 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 13:15:07,935 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:15:07,935 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:15:08,104 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 13:15:08,104 INFO L272 AbstractInterpreter]: Visited 142 different actions 278 times. Merged at 4 different actions 4 times. Never widened. Performed 2652 root evaluator evaluations with a maximum evaluation depth of 13. Performed 2652 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 13:15:08,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:08,121 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 13:15:08,334 INFO L227 lantSequenceWeakener]: Weakened 391 states. On average, predicates are now at 77.87% of their original sizes. [2018-11-23 13:15:08,334 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 13:15:08,389 INFO L415 sIntCurrentIteration]: We unified 393 AI predicates to 393 [2018-11-23 13:15:08,389 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 13:15:08,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:15:08,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-11-23 13:15:08,389 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:15:08,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 13:15:08,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 13:15:08,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 13:15:08,390 INFO L87 Difference]: Start difference. First operand 2645 states and 3530 transitions. Second operand 10 states. [2018-11-23 13:15:25,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:15:25,017 INFO L93 Difference]: Finished difference Result 5288 states and 7101 transitions. [2018-11-23 13:15:25,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 13:15:25,017 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 394 [2018-11-23 13:15:25,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:15:25,023 INFO L225 Difference]: With dead ends: 5288 [2018-11-23 13:15:25,023 INFO L226 Difference]: Without dead ends: 2831 [2018-11-23 13:15:25,027 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 401 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-23 13:15:25,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2018-11-23 13:15:25,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2829. [2018-11-23 13:15:25,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2829 states. [2018-11-23 13:15:25,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 3728 transitions. [2018-11-23 13:15:25,061 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 3728 transitions. Word has length 394 [2018-11-23 13:15:25,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:15:25,062 INFO L480 AbstractCegarLoop]: Abstraction has 2829 states and 3728 transitions. [2018-11-23 13:15:25,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 13:15:25,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 3728 transitions. [2018-11-23 13:15:25,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2018-11-23 13:15:25,068 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:15:25,068 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-23 13:15:25,069 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:15:25,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:25,069 INFO L82 PathProgramCache]: Analyzing trace with hash -100424438, now seen corresponding path program 1 times [2018-11-23 13:15:25,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:15:25,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:25,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:15:25,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:25,070 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:15:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:15:25,293 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 310 proven. 124 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-23 13:15:25,293 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:15:25,293 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:15:25,294 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 396 with the following transitions: [2018-11-23 13:15:25,294 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 13:15:25,296 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:15:25,296 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:15:28,868 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 13:15:28,868 INFO L272 AbstractInterpreter]: Visited 120 different actions 357 times. Merged at 6 different actions 17 times. Never widened. Performed 3400 root evaluator evaluations with a maximum evaluation depth of 21. Performed 3400 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 13:15:28,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:28,873 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 13:15:29,479 INFO L227 lantSequenceWeakener]: Weakened 392 states. On average, predicates are now at 80.55% of their original sizes. [2018-11-23 13:15:29,480 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 13:15:29,512 INFO L415 sIntCurrentIteration]: We unified 394 AI predicates to 394 [2018-11-23 13:15:29,512 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 13:15:29,512 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:15:29,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-11-23 13:15:29,512 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:15:29,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 13:15:29,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 13:15:29,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 13:15:29,513 INFO L87 Difference]: Start difference. First operand 2829 states and 3728 transitions. Second operand 9 states. [2018-11-23 13:15:39,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:15:39,746 INFO L93 Difference]: Finished difference Result 5964 states and 8225 transitions. [2018-11-23 13:15:39,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 13:15:39,746 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 395 [2018-11-23 13:15:39,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:15:39,754 INFO L225 Difference]: With dead ends: 5964 [2018-11-23 13:15:39,754 INFO L226 Difference]: Without dead ends: 3507 [2018-11-23 13:15:39,759 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 401 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-23 13:15:39,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3507 states. [2018-11-23 13:15:39,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3507 to 3482. [2018-11-23 13:15:39,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3482 states. [2018-11-23 13:15:39,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3482 states to 3482 states and 4531 transitions. [2018-11-23 13:15:39,819 INFO L78 Accepts]: Start accepts. Automaton has 3482 states and 4531 transitions. Word has length 395 [2018-11-23 13:15:39,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:15:39,820 INFO L480 AbstractCegarLoop]: Abstraction has 3482 states and 4531 transitions. [2018-11-23 13:15:39,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 13:15:39,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3482 states and 4531 transitions. [2018-11-23 13:15:39,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2018-11-23 13:15:39,826 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:15:39,826 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 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] [2018-11-23 13:15:39,827 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:15:39,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:39,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1844358318, now seen corresponding path program 1 times [2018-11-23 13:15:39,827 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:15:39,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:39,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:15:39,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:39,828 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:15:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:15:40,110 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 539 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2018-11-23 13:15:40,110 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:15:40,110 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:15:40,110 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 480 with the following transitions: [2018-11-23 13:15:40,110 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 13:15:40,111 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:15:40,112 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:15:46,512 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:15:46,512 INFO L272 AbstractInterpreter]: Visited 122 different actions 485 times. Merged at 8 different actions 30 times. Never widened. Performed 4605 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4605 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 13:15:46,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:46,514 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:15:46,514 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:15:46,514 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/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 [2018-11-23 13:15:46,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:15:46,520 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:15:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:15:46,621 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:15:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 539 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2018-11-23 13:15:46,819 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:15:47,087 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 539 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2018-11-23 13:15:47,102 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 13:15:47,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-23 13:15:47,103 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 13:15:47,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 13:15:47,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 13:15:47,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-23 13:15:47,104 INFO L87 Difference]: Start difference. First operand 3482 states and 4531 transitions. Second operand 9 states. [2018-11-23 13:15:50,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:15:50,476 INFO L93 Difference]: Finished difference Result 10883 states and 16222 transitions. [2018-11-23 13:15:50,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-11-23 13:15:50,476 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 479 [2018-11-23 13:15:50,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:15:50,503 INFO L225 Difference]: With dead ends: 10883 [2018-11-23 13:15:50,503 INFO L226 Difference]: Without dead ends: 7406 [2018-11-23 13:15:50,516 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1028 GetRequests, 983 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=425, Invalid=1555, Unknown=0, NotChecked=0, Total=1980 [2018-11-23 13:15:50,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7406 states. [2018-11-23 13:15:50,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7406 to 7368. [2018-11-23 13:15:50,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7368 states. [2018-11-23 13:15:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7368 states to 7368 states and 10148 transitions. [2018-11-23 13:15:50,624 INFO L78 Accepts]: Start accepts. Automaton has 7368 states and 10148 transitions. Word has length 479 [2018-11-23 13:15:50,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:15:50,624 INFO L480 AbstractCegarLoop]: Abstraction has 7368 states and 10148 transitions. [2018-11-23 13:15:50,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 13:15:50,624 INFO L276 IsEmpty]: Start isEmpty. Operand 7368 states and 10148 transitions. [2018-11-23 13:15:50,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2018-11-23 13:15:50,639 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:15:50,639 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2018-11-23 13:15:50,640 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:15:50,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:50,640 INFO L82 PathProgramCache]: Analyzing trace with hash 562913078, now seen corresponding path program 1 times [2018-11-23 13:15:50,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:15:50,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:50,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:15:50,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:50,641 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:15:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:15:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 672 proven. 2 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2018-11-23 13:15:50,830 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:15:50,830 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:15:50,831 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 552 with the following transitions: [2018-11-23 13:15:50,831 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 13:15:50,832 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:15:50,832 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:15:54,830 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:15:54,830 INFO L272 AbstractInterpreter]: Visited 123 different actions 484 times. Merged at 8 different actions 25 times. Never widened. Performed 4666 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4666 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 13:15:54,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:54,837 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:15:54,837 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:15:54,837 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/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 [2018-11-23 13:15:54,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:15:54,844 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:15:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:15:54,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:15:55,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 672 proven. 2 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2018-11-23 13:15:55,042 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:15:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 672 proven. 2 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2018-11-23 13:15:55,226 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 13:15:55,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-23 13:15:55,226 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 13:15:55,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 13:15:55,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 13:15:55,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:15:55,227 INFO L87 Difference]: Start difference. First operand 7368 states and 10148 transitions. Second operand 9 states. [2018-11-23 13:15:56,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:15:56,709 INFO L93 Difference]: Finished difference Result 15308 states and 22318 transitions. [2018-11-23 13:15:56,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 13:15:56,709 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 551 [2018-11-23 13:15:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:15:56,731 INFO L225 Difference]: With dead ends: 15308 [2018-11-23 13:15:56,731 INFO L226 Difference]: Without dead ends: 6993 [2018-11-23 13:15:56,755 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1123 GetRequests, 1105 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2018-11-23 13:15:56,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6993 states. [2018-11-23 13:15:56,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6993 to 6881. [2018-11-23 13:15:56,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6881 states. [2018-11-23 13:15:56,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 9004 transitions. [2018-11-23 13:15:56,854 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 9004 transitions. Word has length 551 [2018-11-23 13:15:56,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:15:56,854 INFO L480 AbstractCegarLoop]: Abstraction has 6881 states and 9004 transitions. [2018-11-23 13:15:56,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 13:15:56,855 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 9004 transitions. [2018-11-23 13:15:56,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2018-11-23 13:15:56,864 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:15:56,864 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2018-11-23 13:15:56,864 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:15:56,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:56,865 INFO L82 PathProgramCache]: Analyzing trace with hash -933722006, now seen corresponding path program 1 times [2018-11-23 13:15:56,865 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:15:56,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:56,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:15:56,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:56,866 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:15:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:15:57,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 602 proven. 411 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-23 13:15:57,488 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:15:57,488 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:15:57,488 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 556 with the following transitions: [2018-11-23 13:15:57,488 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 13:15:57,490 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:15:57,490 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:16:04,807 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:16:04,807 INFO L272 AbstractInterpreter]: Visited 124 different actions 490 times. Merged at 9 different actions 27 times. Never widened. Performed 4765 root evaluator evaluations with a maximum evaluation depth of 22. Performed 4765 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 13:16:04,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:16:04,809 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:16:04,809 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:16:04,809 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/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 [2018-11-23 13:16:04,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:16:04,815 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:16:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:16:04,877 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:16:04,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2018-11-23 13:16:04,989 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:16:05,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2018-11-23 13:16:05,110 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:16:05,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [14] total 16 [2018-11-23 13:16:05,111 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:16:05,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:16:05,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:16:05,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-11-23 13:16:05,112 INFO L87 Difference]: Start difference. First operand 6881 states and 9004 transitions. Second operand 3 states. [2018-11-23 13:16:05,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:16:05,666 INFO L93 Difference]: Finished difference Result 17891 states and 25284 transitions. [2018-11-23 13:16:05,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:16:05,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 555 [2018-11-23 13:16:05,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:16:05,702 INFO L225 Difference]: With dead ends: 17891 [2018-11-23 13:16:05,702 INFO L226 Difference]: Without dead ends: 11198 [2018-11-23 13:16:05,728 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1125 GetRequests, 1111 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-11-23 13:16:05,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11198 states. [2018-11-23 13:16:05,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11198 to 10834. [2018-11-23 13:16:05,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10834 states. [2018-11-23 13:16:05,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10834 states to 10834 states and 14186 transitions. [2018-11-23 13:16:05,889 INFO L78 Accepts]: Start accepts. Automaton has 10834 states and 14186 transitions. Word has length 555 [2018-11-23 13:16:05,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:16:05,890 INFO L480 AbstractCegarLoop]: Abstraction has 10834 states and 14186 transitions. [2018-11-23 13:16:05,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:16:05,890 INFO L276 IsEmpty]: Start isEmpty. Operand 10834 states and 14186 transitions. [2018-11-23 13:16:05,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2018-11-23 13:16:05,905 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:16:05,905 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2018-11-23 13:16:05,906 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:16:05,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:16:05,906 INFO L82 PathProgramCache]: Analyzing trace with hash -2072652706, now seen corresponding path program 1 times [2018-11-23 13:16:05,906 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:16:05,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:16:05,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:16:05,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:16:05,907 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:16:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:16:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 587 proven. 429 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2018-11-23 13:16:06,453 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:16:06,453 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:16:06,453 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 564 with the following transitions: [2018-11-23 13:16:06,453 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 13:16:06,455 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:16:06,455 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:16:10,538 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:16:10,538 INFO L272 AbstractInterpreter]: Visited 123 different actions 483 times. Merged at 8 different actions 24 times. Never widened. Performed 4665 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4665 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 13:16:10,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:16:10,539 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:16:10,539 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:16:10,540 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/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 [2018-11-23 13:16:10,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:16:10,546 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:16:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:16:10,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:16:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 684 proven. 2 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2018-11-23 13:16:10,730 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:16:10,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 684 proven. 2 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2018-11-23 13:16:10,925 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 13:16:10,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-23 13:16:10,925 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 13:16:10,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 13:16:10,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 13:16:10,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-11-23 13:16:10,926 INFO L87 Difference]: Start difference. First operand 10834 states and 14186 transitions. Second operand 17 states. [2018-11-23 13:16:14,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:16:14,100 INFO L93 Difference]: Finished difference Result 21040 states and 28898 transitions. [2018-11-23 13:16:14,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-11-23 13:16:14,101 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 563 [2018-11-23 13:16:14,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:16:14,110 INFO L225 Difference]: With dead ends: 21040 [2018-11-23 13:16:14,110 INFO L226 Difference]: Without dead ends: 4127 [2018-11-23 13:16:14,165 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1213 GetRequests, 1147 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=937, Invalid=3485, Unknown=0, NotChecked=0, Total=4422 [2018-11-23 13:16:14,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4127 states. [2018-11-23 13:16:14,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4127 to 3764. [2018-11-23 13:16:14,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3764 states. [2018-11-23 13:16:14,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3764 states to 3764 states and 4073 transitions. [2018-11-23 13:16:14,217 INFO L78 Accepts]: Start accepts. Automaton has 3764 states and 4073 transitions. Word has length 563 [2018-11-23 13:16:14,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:16:14,218 INFO L480 AbstractCegarLoop]: Abstraction has 3764 states and 4073 transitions. [2018-11-23 13:16:14,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 13:16:14,218 INFO L276 IsEmpty]: Start isEmpty. Operand 3764 states and 4073 transitions. [2018-11-23 13:16:14,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2018-11-23 13:16:14,222 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:16:14,223 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:16:14,223 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:16:14,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:16:14,223 INFO L82 PathProgramCache]: Analyzing trace with hash 40980246, now seen corresponding path program 1 times [2018-11-23 13:16:14,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:16:14,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:16:14,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:16:14,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:16:14,224 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:16:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:16:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 526 proven. 262 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2018-11-23 13:16:14,558 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:16:14,558 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:16:14,558 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 728 with the following transitions: [2018-11-23 13:16:14,559 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [638], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [854], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 13:16:14,561 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:16:14,561 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:16:18,659 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:16:18,659 INFO L272 AbstractInterpreter]: Visited 191 different actions 765 times. Merged at 9 different actions 34 times. Widened at 1 different actions 2 times. Performed 8370 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8370 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 13:16:18,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:16:18,670 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:16:18,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:16:18,670 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/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 [2018-11-23 13:16:18,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:16:18,676 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:16:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:16:18,784 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:16:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 1085 proven. 2 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-11-23 13:16:18,961 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:16:19,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 526 proven. 262 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2018-11-23 13:16:19,237 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 13:16:19,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-11-23 13:16:19,237 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 13:16:19,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 13:16:19,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 13:16:19,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-23 13:16:19,238 INFO L87 Difference]: Start difference. First operand 3764 states and 4073 transitions. Second operand 10 states. [2018-11-23 13:16:20,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:16:20,066 INFO L93 Difference]: Finished difference Result 9564 states and 10657 transitions. [2018-11-23 13:16:20,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-23 13:16:20,066 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 727 [2018-11-23 13:16:20,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:16:20,077 INFO L225 Difference]: With dead ends: 9564 [2018-11-23 13:16:20,077 INFO L226 Difference]: Without dead ends: 5986 [2018-11-23 13:16:20,084 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1485 GetRequests, 1461 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2018-11-23 13:16:20,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5986 states. [2018-11-23 13:16:20,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5986 to 5863. [2018-11-23 13:16:20,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5863 states. [2018-11-23 13:16:20,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 6440 transitions. [2018-11-23 13:16:20,177 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 6440 transitions. Word has length 727 [2018-11-23 13:16:20,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:16:20,178 INFO L480 AbstractCegarLoop]: Abstraction has 5863 states and 6440 transitions. [2018-11-23 13:16:20,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 13:16:20,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 6440 transitions. [2018-11-23 13:16:20,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2018-11-23 13:16:20,188 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:16:20,189 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:16:20,189 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:16:20,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:16:20,189 INFO L82 PathProgramCache]: Analyzing trace with hash 737341697, now seen corresponding path program 1 times [2018-11-23 13:16:20,189 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:16:20,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:16:20,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:16:20,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:16:20,190 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:16:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:16:21,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2059 backedges. 512 proven. 1117 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2018-11-23 13:16:21,508 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:16:21,508 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:16:21,508 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 851 with the following transitions: [2018-11-23 13:16:21,509 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [854], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 13:16:21,511 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:16:21,511 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:16:25,541 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:16:25,541 INFO L272 AbstractInterpreter]: Visited 192 different actions 762 times. Merged at 9 different actions 27 times. Never widened. Performed 8416 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8416 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 11 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-23 13:16:25,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:16:25,554 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:16:25,555 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:16:25,555 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/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 [2018-11-23 13:16:25,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:16:25,561 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:16:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:16:25,658 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:16:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2059 backedges. 1343 proven. 2 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2018-11-23 13:16:25,866 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:16:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2059 backedges. 866 proven. 111 refuted. 0 times theorem prover too weak. 1082 trivial. 0 not checked. [2018-11-23 13:16:26,208 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 13:16:26,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-11-23 13:16:26,208 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 13:16:26,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 13:16:26,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 13:16:26,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-11-23 13:16:26,210 INFO L87 Difference]: Start difference. First operand 5863 states and 6440 transitions. Second operand 18 states. [2018-11-23 13:16:30,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:16:30,474 INFO L93 Difference]: Finished difference Result 11035 states and 12014 transitions. [2018-11-23 13:16:30,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-11-23 13:16:30,475 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 850 [2018-11-23 13:16:30,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:16:30,484 INFO L225 Difference]: With dead ends: 11035 [2018-11-23 13:16:30,484 INFO L226 Difference]: Without dead ends: 4589 [2018-11-23 13:16:30,494 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1824 GetRequests, 1741 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2197 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1161, Invalid=5645, Unknown=0, NotChecked=0, Total=6806 [2018-11-23 13:16:30,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4589 states. [2018-11-23 13:16:30,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4589 to 4086. [2018-11-23 13:16:30,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4086 states. [2018-11-23 13:16:30,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4086 states to 4086 states and 4241 transitions. [2018-11-23 13:16:30,554 INFO L78 Accepts]: Start accepts. Automaton has 4086 states and 4241 transitions. Word has length 850 [2018-11-23 13:16:30,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:16:30,555 INFO L480 AbstractCegarLoop]: Abstraction has 4086 states and 4241 transitions. [2018-11-23 13:16:30,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 13:16:30,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4086 states and 4241 transitions. [2018-11-23 13:16:30,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1138 [2018-11-23 13:16:30,567 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:16:30,567 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 13:16:30,567 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:16:30,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:16:30,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1296983046, now seen corresponding path program 1 times [2018-11-23 13:16:30,568 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:16:30,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:16:30,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:16:30,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:16:30,569 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:16:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:16:31,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3970 backedges. 1342 proven. 57 refuted. 0 times theorem prover too weak. 2571 trivial. 0 not checked. [2018-11-23 13:16:31,356 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:16:31,356 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:16:31,356 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1138 with the following transitions: [2018-11-23 13:16:31,357 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [794], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 13:16:31,358 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:16:31,358 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:16:35,445 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:16:35,445 INFO L272 AbstractInterpreter]: Visited 195 different actions 781 times. Merged at 10 different actions 34 times. Widened at 1 different actions 1 times. Performed 8621 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8621 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 8 different actions. Largest state had 24 variables. [2018-11-23 13:16:35,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:16:35,449 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:16:35,449 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:16:35,449 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/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 [2018-11-23 13:16:35,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:16:35,455 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:16:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:16:35,582 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:16:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3970 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 3424 trivial. 0 not checked. [2018-11-23 13:16:35,928 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:16:36,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3970 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 3424 trivial. 0 not checked. [2018-11-23 13:16:36,265 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:16:36,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 4 [2018-11-23 13:16:36,266 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:16:36,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:16:36,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:16:36,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:16:36,267 INFO L87 Difference]: Start difference. First operand 4086 states and 4241 transitions. Second operand 3 states. [2018-11-23 13:16:36,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:16:36,509 INFO L93 Difference]: Finished difference Result 7975 states and 8308 transitions. [2018-11-23 13:16:36,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:16:36,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1137 [2018-11-23 13:16:36,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:16:36,511 INFO L225 Difference]: With dead ends: 7975 [2018-11-23 13:16:36,511 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 13:16:36,516 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2280 GetRequests, 2274 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:16:36,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 13:16:36,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 13:16:36,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 13:16:36,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 13:16:36,516 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1137 [2018-11-23 13:16:36,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:16:36,516 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:16:36,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:16:36,517 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:16:36,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:16:36,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 13:16:36,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,801 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,813 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,824 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,833 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,866 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,902 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,912 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,978 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:36,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,017 WARN L180 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 204 [2018-11-23 13:16:37,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,096 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,112 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,117 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,204 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,253 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,259 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,274 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:16:37,296 WARN L180 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 191 [2018-11-23 13:16:38,144 WARN L180 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 88 [2018-11-23 13:16:38,520 WARN L180 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 63 [2018-11-23 13:16:38,823 WARN L180 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 62 [2018-11-23 13:16:38,825 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:16:38,825 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-11-23 13:16:38,825 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:16:38,825 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-23 13:16:38,825 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-23 13:16:38,825 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,825 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,825 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,825 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-23 13:16:38,825 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-23 13:16:38,826 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,827 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,828 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-23 13:16:38,829 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse4 (<= ~a12~0 |old(~a12~0)|)) (.cse16 (= ~a24~0 |old(~a24~0)|)) (.cse5 (= ~a21~0 |old(~a21~0)|)) (.cse11 (= |old(~a15~0)| ~a15~0)) (.cse12 (+ |old(~a12~0)| 49)) (.cse19 (= 6 |old(~a21~0)|))) (let ((.cse15 (< 7 |old(~a21~0)|)) (.cse17 (< 7 |old(~a15~0)|)) (.cse3 (<= 81 ~a12~0)) (.cse0 (= 9 |old(~a21~0)|)) (.cse18 (not .cse19)) (.cse13 (not (= 5 |old(~a15~0)|))) (.cse22 (not (= 0 .cse12))) (.cse21 (= (+ ~a12~0 49) 0)) (.cse20 (not (= 9 |old(~a15~0)|))) (.cse2 (< |old(~a12~0)| 81)) (.cse14 (and .cse4 .cse16 .cse5 .cse11)) (.cse1 (= 0 |old(~a21~0)|)) (.cse8 (not (= 1 |old(~a24~0)|))) (.cse9 (not (= 8 |old(~a15~0)|))) (.cse6 (= 8 ~a15~0)) (.cse7 (= ~a24~0 1)) (.cse10 (= |calculate_output_#in~input| 0))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 .cse10) (or (not (= 6 |old(~a15~0)|)) (and .cse4 .cse11)) (or (< 0 .cse12) .cse13 .cse14 .cse15) (or .cse2 .cse8 (and .cse3 .cse4 .cse16 .cse5 .cse11) .cse17 .cse15) (or .cse14 .cse8 (< 11 |old(~a12~0)|) .cse17) (or .cse18 (<= (+ |old(~a12~0)| 43) 0) .cse8 .cse13 (and .cse4 .cse16 .cse5 (< 0 (+ ~a12~0 43)) .cse11)) (or .cse19 .cse8 .cse17 .cse14) (or .cse3 .cse20 .cse2 .cse8) (or .cse19 .cse20 .cse0 .cse14 .cse8) (or .cse21 .cse18 .cse8 .cse13 .cse22 .cse10) (or (or .cse22 .cse10) (not (= 7 |old(~a21~0)|)) .cse8 .cse9 .cse21) (or .cse20 .cse2 .cse8 .cse14) (or .cse19 .cse1 (< 76 |old(~a12~0)|) .cse8 .cse9 (and .cse4 .cse5 .cse6 .cse7) .cse10)))) [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,830 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-23 13:16:38,831 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,832 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-23 13:16:38,833 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 181) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-23 13:16:38,834 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,835 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,836 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 13:16:38,836 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-23 13:16:38,836 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-23 13:16:38,836 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-23 13:16:38,836 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-23 13:16:38,836 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-23 13:16:38,836 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:16:38,836 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-11-23 13:16:38,836 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:16:38,836 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:16:38,836 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7))) [2018-11-23 13:16:38,836 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-23 13:16:38,836 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse7 (= 5 ~a15~0)) (.cse5 (and (not (= ~a21~0 0)) (not (= main_~input~0 0)) (= ~a15~0 8))) (.cse6 (= ~a24~0 |old(~a24~0)|)) (.cse3 (<= 81 ~a12~0)) (.cse1 (<= ~a15~0 7)) (.cse4 (not (= 9 ~a21~0))) (.cse0 (= 1 ~a24~0)) (.cse8 (= 9 ~a15~0)) (.cse2 (not (= 6 ~a21~0)))) (or (and .cse0 .cse1 .cse2) (not (= 8 |old(~a15~0)|)) (and .cse3 (and .cse4 .cse5 .cse6)) (and .cse0 .cse1 (<= ~a12~0 11)) (and .cse0 .cse7) (not (= 7 |old(~a21~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (<= ~a21~0 7) .cse7 (<= (+ ~a12~0 49) 0)) (and .cse3 .cse0 .cse8) (and (<= ~a12~0 76) .cse5 .cse6 .cse2) (= 6 ~a15~0) (not (= 1 |old(~a24~0)|)) (and .cse3 .cse0 .cse1) (and .cse4 .cse0 .cse8 .cse2))) [2018-11-23 13:16:38,836 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-23 13:16:38,836 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-23 13:16:38,836 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse4 (= 5 ~a15~0)) (.cse3 (and (not (= ~a21~0 0)) (= ~a15~0 8) (= ~a24~0 1) (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|))))) (.cse5 (<= 81 ~a12~0)) (.cse1 (<= ~a15~0 7)) (.cse6 (not (= 9 ~a21~0))) (.cse0 (= 1 ~a24~0)) (.cse7 (= 9 ~a15~0)) (.cse2 (not (= 6 ~a21~0)))) (or (and .cse0 .cse1 .cse2) (not (= 8 |old(~a15~0)|)) (and .cse0 .cse1 (<= ~a12~0 11)) (and (<= ~a12~0 76) .cse3 .cse2) (and .cse0 .cse4) (not (= 7 |old(~a21~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (<= ~a21~0 7) .cse4 (<= (+ ~a12~0 49) 0)) (and .cse5 .cse6 .cse3) (and .cse5 .cse0 .cse7) (= 6 ~a15~0) (not (= 1 |old(~a24~0)|)) (and .cse5 .cse0 .cse1) (and .cse6 .cse0 .cse7 .cse2))) [2018-11-23 13:16:38,836 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-11-23 13:16:38,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:16:38 BoogieIcfgContainer [2018-11-23 13:16:38,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:16:38,847 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:16:38,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:16:38,847 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:16:38,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:13:59" (3/4) ... [2018-11-23 13:16:38,851 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:16:38,855 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 13:16:38,855 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 13:16:38,855 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 13:16:38,873 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 13:16:38,874 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 13:16:38,899 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((1 == a24 && a15 <= 7) && !(6 == a21)) || !(8 == \old(a15))) || ((1 == a24 && a15 <= 7) && a12 <= 11)) || ((a12 <= 76 && ((!(a21 == 0) && a15 == 8) && a24 == 1) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(6 == a21))) || (1 == a24 && 5 == a15)) || !(7 == \old(a21))) || !(0 == \old(a12) + 49)) || ((a21 <= 7 && 5 == a15) && a12 + 49 <= 0)) || ((81 <= a12 && !(9 == a21)) && ((!(a21 == 0) && a15 == 8) && a24 == 1) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || ((81 <= a12 && 1 == a24) && 9 == a15)) || 6 == a15) || !(1 == \old(a24))) || ((81 <= a12 && 1 == a24) && a15 <= 7)) || (((!(9 == a21) && 1 == a24) && 9 == a15) && !(6 == a21)) [2018-11-23 13:16:38,981 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_440b14f7-07a4-4018-b3ef-97c99f2a185a/bin-2019/utaipan/witness.graphml [2018-11-23 13:16:38,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:16:38,982 INFO L168 Benchmark]: Toolchain (without parser) took 161009.55 ms. Allocated memory was 1.0 GB in the beginning and 5.0 GB in the end (delta: 4.0 GB). Free memory was 951.1 MB in the beginning and 1.9 GB in the end (delta: -941.2 MB). Peak memory consumption was 3.0 GB. Max. memory is 11.5 GB. [2018-11-23 13:16:38,982 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-11-23 13:16:38,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.03 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 908.1 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-23 13:16:38,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 908.1 MB in the beginning and 1.1 GB in the end (delta: -229.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-23 13:16:38,982 INFO L168 Benchmark]: Boogie Preprocessor took 53.11 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-23 13:16:38,983 INFO L168 Benchmark]: RCFGBuilder took 1012.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 119.2 MB). Peak memory consumption was 119.2 MB. Max. memory is 11.5 GB. [2018-11-23 13:16:38,983 INFO L168 Benchmark]: TraceAbstraction took 159341.78 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.8 GB). Free memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: -882.0 MB). Peak memory consumption was 3.0 GB. Max. memory is 11.5 GB. [2018-11-23 13:16:38,983 INFO L168 Benchmark]: Witness Printer took 133.97 ms. Allocated memory is still 5.0 GB. Free memory is still 1.9 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:16:38,984 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 388.03 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 908.1 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 908.1 MB in the beginning and 1.1 GB in the end (delta: -229.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.11 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1012.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 119.2 MB). Peak memory consumption was 119.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 159341.78 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.8 GB). Free memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: -882.0 MB). Peak memory consumption was 3.0 GB. Max. memory is 11.5 GB. * Witness Printer took 133.97 ms. Allocated memory is still 5.0 GB. Free memory is still 1.9 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 181]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((((((((((1 == a24 && a15 <= 7) && !(6 == a21)) || !(8 == \old(a15))) || ((1 == a24 && a15 <= 7) && a12 <= 11)) || ((a12 <= 76 && ((!(a21 == 0) && a15 == 8) && a24 == 1) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(6 == a21))) || (1 == a24 && 5 == a15)) || !(7 == \old(a21))) || !(0 == \old(a12) + 49)) || ((a21 <= 7 && 5 == a15) && a12 + 49 <= 0)) || ((81 <= a12 && !(9 == a21)) && ((!(a21 == 0) && a15 == 8) && a24 == 1) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || ((81 <= a12 && 1 == a24) && 9 == a15)) || 6 == a15) || !(1 == \old(a24))) || ((81 <= a12 && 1 == a24) && a15 <= 7)) || (((!(9 == a21) && 1 == a24) && 9 == a15) && !(6 == a21)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 159.2s OverallTime, 13 OverallIterations, 10 TraceHistogramMax, 106.3s AutomataDifference, 0.0s DeadEndRemovalTime, 2.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 2182 SDtfs, 21196 SDslu, 2807 SDs, 0 SdLazy, 29107 SolverSat, 4845 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 91.5s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 11501 GetRequests, 11189 SyntacticMatches, 12 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4379 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10834occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 38.3s AbstIntTime, 11 AbstIntIterations, 4 AbstIntStrong, 0.9973934407848386 AbsIntWeakeningRatio, 0.08795962509012256 AbsIntAvgWeakeningVarsNumRemoved, 16.268204758471523 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 1533 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 549 PreInvPairs, 847 NumberOfFragments, 720 HoareAnnotationTreeSize, 549 FomulaSimplifications, 16940 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9530 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 11357 NumberOfCodeBlocks, 11357 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 16192 ConstructedInterpolants, 0 QuantifiedInterpolants, 32109311 SizeOfPredicates, 6 NumberOfNonLiveVariables, 7099 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 27 InterpolantComputations, 6 PerfectInterpolantSequences, 33753/36976 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...