./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label48_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_18044115-dec3-4660-8105-ecc5a16aa6e1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label48_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/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 d21c5ccf8cec8e25a14d9a868b5f3d1150798ab4 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:41:30,267 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 09:41:30,269 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 09:41:30,275 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 09:41:30,276 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 09:41:30,276 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 09:41:30,277 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 09:41:30,279 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 09:41:30,280 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 09:41:30,280 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 09:41:30,281 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 09:41:30,281 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 09:41:30,282 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 09:41:30,282 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 09:41:30,283 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 09:41:30,283 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 09:41:30,283 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 09:41:30,285 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 09:41:30,286 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 09:41:30,287 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 09:41:30,288 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 09:41:30,288 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 09:41:30,289 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 09:41:30,289 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 09:41:30,290 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 09:41:30,290 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 09:41:30,291 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 09:41:30,291 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 09:41:30,292 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 09:41:30,292 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 09:41:30,293 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 09:41:30,293 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 09:41:30,293 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 09:41:30,293 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 09:41:30,294 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 09:41:30,295 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 09:41:30,295 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 09:41:30,302 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 09:41:30,302 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 09:41:30,303 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 09:41:30,303 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 09:41:30,303 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 09:41:30,303 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 09:41:30,303 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 09:41:30,304 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 09:41:30,304 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 09:41:30,304 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 09:41:30,304 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 09:41:30,304 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 09:41:30,304 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 09:41:30,305 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 09:41:30,305 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 09:41:30,305 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 09:41:30,305 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 09:41:30,305 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 09:41:30,305 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 09:41:30,306 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 09:41:30,306 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 09:41:30,306 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 09:41:30,306 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 09:41:30,306 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 09:41:30,306 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 09:41:30,306 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 09:41:30,307 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 09:41:30,307 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 09:41:30,307 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 09:41:30,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 09:41:30,307 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 09:41:30,307 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 09:41:30,307 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 09:41:30,307 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 09:41:30,308 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 09:41:30,308 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 09:41:30,308 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 09:41:30,308 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_18044115-dec3-4660-8105-ecc5a16aa6e1/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 -> d21c5ccf8cec8e25a14d9a868b5f3d1150798ab4 [2018-11-23 09:41:30,332 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 09:41:30,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 09:41:30,344 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 09:41:30,345 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 09:41:30,345 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 09:41:30,346 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label48_true-unreach-call_false-termination.c [2018-11-23 09:41:30,392 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/bin-2019/utaipan/data/0c6893c0c/22894c17269b468f98bc4212f0fb1d43/FLAGa91401efd [2018-11-23 09:41:30,858 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 09:41:30,858 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/sv-benchmarks/c/eca-rers2012/Problem02_label48_true-unreach-call_false-termination.c [2018-11-23 09:41:30,867 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/bin-2019/utaipan/data/0c6893c0c/22894c17269b468f98bc4212f0fb1d43/FLAGa91401efd [2018-11-23 09:41:31,365 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/bin-2019/utaipan/data/0c6893c0c/22894c17269b468f98bc4212f0fb1d43 [2018-11-23 09:41:31,367 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 09:41:31,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 09:41:31,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 09:41:31,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 09:41:31,372 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 09:41:31,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:41:31" (1/1) ... [2018-11-23 09:41:31,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e5f2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31, skipping insertion in model container [2018-11-23 09:41:31,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:41:31" (1/1) ... [2018-11-23 09:41:31,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 09:41:31,417 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 09:41:31,639 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:41:31,643 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 09:41:31,708 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:41:31,720 INFO L195 MainTranslator]: Completed translation [2018-11-23 09:41:31,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31 WrapperNode [2018-11-23 09:41:31,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 09:41:31,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 09:41:31,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 09:41:31,722 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 09:41:31,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31" (1/1) ... [2018-11-23 09:41:31,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31" (1/1) ... [2018-11-23 09:41:31,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 09:41:31,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 09:41:31,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 09:41:31,793 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 09:41:31,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31" (1/1) ... [2018-11-23 09:41:31,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31" (1/1) ... [2018-11-23 09:41:31,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31" (1/1) ... [2018-11-23 09:41:31,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31" (1/1) ... [2018-11-23 09:41:31,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31" (1/1) ... [2018-11-23 09:41:31,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31" (1/1) ... [2018-11-23 09:41:31,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31" (1/1) ... [2018-11-23 09:41:31,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 09:41:31,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 09:41:31,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 09:41:31,847 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 09:41:31,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/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 09:41:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 09:41:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 09:41:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 09:41:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 09:41:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 09:41:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 09:41:31,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 09:41:31,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 09:41:31,897 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 09:41:32,643 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 09:41:32,643 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 09:41:32,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:41:32 BoogieIcfgContainer [2018-11-23 09:41:32,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 09:41:32,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 09:41:32,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 09:41:32,647 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 09:41:32,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:41:31" (1/3) ... [2018-11-23 09:41:32,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a990adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:41:32, skipping insertion in model container [2018-11-23 09:41:32,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:31" (2/3) ... [2018-11-23 09:41:32,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a990adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:41:32, skipping insertion in model container [2018-11-23 09:41:32,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:41:32" (3/3) ... [2018-11-23 09:41:32,651 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label48_true-unreach-call_false-termination.c [2018-11-23 09:41:32,658 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 09:41:32,663 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 09:41:32,673 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 09:41:32,697 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 09:41:32,697 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 09:41:32,697 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 09:41:32,697 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 09:41:32,697 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 09:41:32,697 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 09:41:32,698 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 09:41:32,698 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 09:41:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2018-11-23 09:41:32,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-23 09:41:32,724 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:41:32,725 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:32,727 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:41:32,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:32,731 INFO L82 PathProgramCache]: Analyzing trace with hash 231210793, now seen corresponding path program 1 times [2018-11-23 09:41:32,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:41:32,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:32,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:41:32,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:32,762 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:41:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:41:33,029 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 09:41:33,031 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:41:33,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:41:33,031 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:41:33,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:41:33,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:41:33,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:41:33,046 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2018-11-23 09:41:33,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:41:33,610 INFO L93 Difference]: Finished difference Result 618 states and 1056 transitions. [2018-11-23 09:41:33,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:41:33,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2018-11-23 09:41:33,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:41:33,622 INFO L225 Difference]: With dead ends: 618 [2018-11-23 09:41:33,622 INFO L226 Difference]: Without dead ends: 380 [2018-11-23 09:41:33,626 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:41:33,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2018-11-23 09:41:33,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2018-11-23 09:41:33,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-11-23 09:41:33,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 606 transitions. [2018-11-23 09:41:33,674 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 606 transitions. Word has length 143 [2018-11-23 09:41:33,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:41:33,675 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 606 transitions. [2018-11-23 09:41:33,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:41:33,675 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 606 transitions. [2018-11-23 09:41:33,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-11-23 09:41:33,680 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:41:33,680 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:33,680 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:41:33,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:33,681 INFO L82 PathProgramCache]: Analyzing trace with hash 703690926, now seen corresponding path program 1 times [2018-11-23 09:41:33,681 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:41:33,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:33,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:41:33,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:33,682 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:41:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:41:33,880 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:41:33,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:41:33,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 09:41:33,881 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:41:33,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 09:41:33,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 09:41:33,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:41:33,883 INFO L87 Difference]: Start difference. First operand 380 states and 606 transitions. Second operand 5 states. [2018-11-23 09:41:34,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:41:34,401 INFO L93 Difference]: Finished difference Result 898 states and 1492 transitions. [2018-11-23 09:41:34,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 09:41:34,402 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2018-11-23 09:41:34,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:41:34,404 INFO L225 Difference]: With dead ends: 898 [2018-11-23 09:41:34,404 INFO L226 Difference]: Without dead ends: 379 [2018-11-23 09:41:34,406 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:41:34,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2018-11-23 09:41:34,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2018-11-23 09:41:34,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-11-23 09:41:34,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 600 transitions. [2018-11-23 09:41:34,421 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 600 transitions. Word has length 151 [2018-11-23 09:41:34,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:41:34,421 INFO L480 AbstractCegarLoop]: Abstraction has 379 states and 600 transitions. [2018-11-23 09:41:34,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 09:41:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 600 transitions. [2018-11-23 09:41:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-23 09:41:34,423 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:41:34,423 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:41:34,423 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:41:34,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:34,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1665282438, now seen corresponding path program 1 times [2018-11-23 09:41:34,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:41:34,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:34,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:41:34,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:34,424 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:41:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:41:34,606 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:41:34,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:41:34,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 09:41:34,607 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:41:34,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 09:41:34,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 09:41:34,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:41:34,608 INFO L87 Difference]: Start difference. First operand 379 states and 600 transitions. Second operand 5 states. [2018-11-23 09:41:35,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:41:35,060 INFO L93 Difference]: Finished difference Result 896 states and 1477 transitions. [2018-11-23 09:41:35,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 09:41:35,061 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-11-23 09:41:35,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:41:35,063 INFO L225 Difference]: With dead ends: 896 [2018-11-23 09:41:35,063 INFO L226 Difference]: Without dead ends: 378 [2018-11-23 09:41:35,064 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:41:35,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2018-11-23 09:41:35,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2018-11-23 09:41:35,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2018-11-23 09:41:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 592 transitions. [2018-11-23 09:41:35,077 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 592 transitions. Word has length 157 [2018-11-23 09:41:35,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:41:35,077 INFO L480 AbstractCegarLoop]: Abstraction has 378 states and 592 transitions. [2018-11-23 09:41:35,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 09:41:35,078 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 592 transitions. [2018-11-23 09:41:35,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-11-23 09:41:35,080 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:41:35,080 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:41:35,080 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:41:35,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:35,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1117544721, now seen corresponding path program 1 times [2018-11-23 09:41:35,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:41:35,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:35,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:41:35,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:35,082 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:41:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:41:35,184 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:41:35,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:41:35,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 09:41:35,185 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:41:35,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 09:41:35,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 09:41:35,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 09:41:35,186 INFO L87 Difference]: Start difference. First operand 378 states and 592 transitions. Second operand 6 states. [2018-11-23 09:41:35,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:41:35,935 INFO L93 Difference]: Finished difference Result 1186 states and 1935 transitions. [2018-11-23 09:41:35,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 09:41:35,935 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2018-11-23 09:41:35,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:41:35,939 INFO L225 Difference]: With dead ends: 1186 [2018-11-23 09:41:35,939 INFO L226 Difference]: Without dead ends: 814 [2018-11-23 09:41:35,941 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 09:41:35,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2018-11-23 09:41:35,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 803. [2018-11-23 09:41:35,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-11-23 09:41:35,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1204 transitions. [2018-11-23 09:41:35,964 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1204 transitions. Word has length 165 [2018-11-23 09:41:35,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:41:35,964 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 1204 transitions. [2018-11-23 09:41:35,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 09:41:35,964 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1204 transitions. [2018-11-23 09:41:35,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-11-23 09:41:35,967 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:41:35,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:35,968 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:41:35,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:35,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1318962261, now seen corresponding path program 1 times [2018-11-23 09:41:35,968 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:41:35,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:35,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:41:35,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:35,969 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:41:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:41:36,124 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:41:36,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:41:36,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 09:41:36,125 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:41:36,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 09:41:36,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 09:41:36,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:41:36,125 INFO L87 Difference]: Start difference. First operand 803 states and 1204 transitions. Second operand 5 states. [2018-11-23 09:41:36,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:41:36,575 INFO L93 Difference]: Finished difference Result 1744 states and 2660 transitions. [2018-11-23 09:41:36,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 09:41:36,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2018-11-23 09:41:36,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:41:36,579 INFO L225 Difference]: With dead ends: 1744 [2018-11-23 09:41:36,579 INFO L226 Difference]: Without dead ends: 800 [2018-11-23 09:41:36,580 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:41:36,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2018-11-23 09:41:36,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 800. [2018-11-23 09:41:36,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2018-11-23 09:41:36,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1186 transitions. [2018-11-23 09:41:36,595 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1186 transitions. Word has length 167 [2018-11-23 09:41:36,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:41:36,595 INFO L480 AbstractCegarLoop]: Abstraction has 800 states and 1186 transitions. [2018-11-23 09:41:36,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 09:41:36,595 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1186 transitions. [2018-11-23 09:41:36,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-11-23 09:41:36,597 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:41:36,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:36,598 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:41:36,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:36,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1177950311, now seen corresponding path program 1 times [2018-11-23 09:41:36,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:41:36,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:36,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:41:36,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:36,599 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:41:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:41:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:41:36,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:41:36,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 09:41:36,718 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:41:36,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 09:41:36,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 09:41:36,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:41:36,719 INFO L87 Difference]: Start difference. First operand 800 states and 1186 transitions. Second operand 5 states. [2018-11-23 09:41:37,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:41:37,141 INFO L93 Difference]: Finished difference Result 1738 states and 2621 transitions. [2018-11-23 09:41:37,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 09:41:37,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 169 [2018-11-23 09:41:37,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:41:37,144 INFO L225 Difference]: With dead ends: 1738 [2018-11-23 09:41:37,144 INFO L226 Difference]: Without dead ends: 797 [2018-11-23 09:41:37,146 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:41:37,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2018-11-23 09:41:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2018-11-23 09:41:37,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2018-11-23 09:41:37,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1165 transitions. [2018-11-23 09:41:37,161 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1165 transitions. Word has length 169 [2018-11-23 09:41:37,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:41:37,161 INFO L480 AbstractCegarLoop]: Abstraction has 797 states and 1165 transitions. [2018-11-23 09:41:37,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 09:41:37,162 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1165 transitions. [2018-11-23 09:41:37,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-11-23 09:41:37,164 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:41:37,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:37,164 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:41:37,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:37,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1524788769, now seen corresponding path program 1 times [2018-11-23 09:41:37,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:41:37,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:37,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:41:37,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:37,165 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:41:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:41:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:41:37,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:41:37,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 09:41:37,247 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:41:37,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 09:41:37,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 09:41:37,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 09:41:37,248 INFO L87 Difference]: Start difference. First operand 797 states and 1165 transitions. Second operand 6 states. [2018-11-23 09:41:37,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:41:37,895 INFO L93 Difference]: Finished difference Result 2367 states and 3607 transitions. [2018-11-23 09:41:37,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 09:41:37,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 173 [2018-11-23 09:41:37,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:41:37,904 INFO L225 Difference]: With dead ends: 2367 [2018-11-23 09:41:37,904 INFO L226 Difference]: Without dead ends: 1576 [2018-11-23 09:41:37,907 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 09:41:37,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2018-11-23 09:41:37,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1550. [2018-11-23 09:41:37,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1550 states. [2018-11-23 09:41:37,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2217 transitions. [2018-11-23 09:41:37,944 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2217 transitions. Word has length 173 [2018-11-23 09:41:37,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:41:37,944 INFO L480 AbstractCegarLoop]: Abstraction has 1550 states and 2217 transitions. [2018-11-23 09:41:37,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 09:41:37,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2217 transitions. [2018-11-23 09:41:37,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-11-23 09:41:37,948 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:41:37,948 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:41:37,949 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:41:37,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:37,949 INFO L82 PathProgramCache]: Analyzing trace with hash 689826632, now seen corresponding path program 1 times [2018-11-23 09:41:37,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:41:37,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:37,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:41:37,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:37,950 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:41:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:41:38,108 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:41:38,108 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:41:38,109 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 09:41:38,109 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 179 with the following transitions: [2018-11-23 09:41:38,111 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [819], [823], [825], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 09:41:38,144 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 09:41:38,144 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 09:41:39,018 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 09:41:39,019 INFO L272 AbstractInterpreter]: Visited 148 different actions 437 times. Merged at 6 different actions 15 times. Never widened. Performed 5121 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5121 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-23 09:41:39,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:39,030 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 09:41:39,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:41:39,030 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/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 09:41:39,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:41:39,040 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 09:41:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:41:39,106 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:41:39,182 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 09:41:39,182 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 09:41:39,273 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 09:41:39,298 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 09:41:39,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-11-23 09:41:39,299 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:41:39,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:41:39,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:41:39,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-23 09:41:39,300 INFO L87 Difference]: Start difference. First operand 1550 states and 2217 transitions. Second operand 3 states. [2018-11-23 09:41:39,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:41:39,912 INFO L93 Difference]: Finished difference Result 4382 states and 6450 transitions. [2018-11-23 09:41:39,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:41:39,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2018-11-23 09:41:39,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:41:39,918 INFO L225 Difference]: With dead ends: 4382 [2018-11-23 09:41:39,918 INFO L226 Difference]: Without dead ends: 1390 [2018-11-23 09:41:39,926 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 356 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-23 09:41:39,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2018-11-23 09:41:39,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1388. [2018-11-23 09:41:39,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1388 states. [2018-11-23 09:41:39,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1799 transitions. [2018-11-23 09:41:39,955 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1799 transitions. Word has length 178 [2018-11-23 09:41:39,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:41:39,955 INFO L480 AbstractCegarLoop]: Abstraction has 1388 states and 1799 transitions. [2018-11-23 09:41:39,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:41:39,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1799 transitions. [2018-11-23 09:41:39,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-11-23 09:41:39,959 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:41:39,959 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:39,960 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:41:39,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:39,960 INFO L82 PathProgramCache]: Analyzing trace with hash -865565521, now seen corresponding path program 1 times [2018-11-23 09:41:39,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:41:39,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:39,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:41:39,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:39,961 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:41:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:41:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:41:40,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:41:40,076 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 09:41:40,076 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-11-23 09:41:40,077 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [202], [205], [209], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [819], [823], [825], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 09:41:40,080 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 09:41:40,081 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 09:41:40,417 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 09:41:40,417 INFO L272 AbstractInterpreter]: Visited 147 different actions 288 times. Merged at 4 different actions 4 times. Never widened. Performed 3190 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3190 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-11-23 09:41:40,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:40,420 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 09:41:40,835 INFO L227 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 82.89% of their original sizes. [2018-11-23 09:41:40,836 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 09:41:40,896 INFO L415 sIntCurrentIteration]: We unified 209 AI predicates to 209 [2018-11-23 09:41:40,896 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 09:41:40,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 09:41:40,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-23 09:41:40,897 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:41:40,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 09:41:40,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 09:41:40,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 09:41:40,898 INFO L87 Difference]: Start difference. First operand 1388 states and 1799 transitions. Second operand 10 states. [2018-11-23 09:41:44,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:41:44,642 INFO L93 Difference]: Finished difference Result 3723 states and 4814 transitions. [2018-11-23 09:41:44,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-23 09:41:44,642 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 210 [2018-11-23 09:41:44,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:41:44,649 INFO L225 Difference]: With dead ends: 3723 [2018-11-23 09:41:44,650 INFO L226 Difference]: Without dead ends: 2341 [2018-11-23 09:41:44,653 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 219 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-11-23 09:41:44,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2018-11-23 09:41:44,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 2336. [2018-11-23 09:41:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2336 states. [2018-11-23 09:41:44,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 2894 transitions. [2018-11-23 09:41:44,690 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 2894 transitions. Word has length 210 [2018-11-23 09:41:44,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:41:44,690 INFO L480 AbstractCegarLoop]: Abstraction has 2336 states and 2894 transitions. [2018-11-23 09:41:44,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 09:41:44,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 2894 transitions. [2018-11-23 09:41:44,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-23 09:41:44,696 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:41:44,696 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:44,696 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:41:44,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:44,697 INFO L82 PathProgramCache]: Analyzing trace with hash 848190709, now seen corresponding path program 1 times [2018-11-23 09:41:44,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:41:44,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:44,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:41:44,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:41:44,698 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:41:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:41:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 66 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:41:44,924 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:41:44,924 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 09:41:44,924 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-23 09:41:44,924 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [312], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [819], [823], [825], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 09:41:44,928 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 09:41:44,929 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 09:41:45,105 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 09:41:45,105 INFO L272 AbstractInterpreter]: Visited 148 different actions 437 times. Merged at 6 different actions 15 times. Never widened. Performed 4962 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4962 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-23 09:41:45,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:41:45,113 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 09:41:45,113 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:41:45,113 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/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 09:41:45,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:41:45,130 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 09:41:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:41:45,178 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:41:45,272 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 09:41:45,272 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 09:41:45,343 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 09:41:45,368 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 09:41:45,369 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 11 [2018-11-23 09:41:45,369 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:41:45,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:41:45,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:41:45,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-23 09:41:45,370 INFO L87 Difference]: Start difference. First operand 2336 states and 2894 transitions. Second operand 3 states. [2018-11-23 09:41:45,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:41:45,672 INFO L93 Difference]: Finished difference Result 5100 states and 6397 transitions. [2018-11-23 09:41:45,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:41:45,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2018-11-23 09:41:45,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:41:45,673 INFO L225 Difference]: With dead ends: 5100 [2018-11-23 09:41:45,674 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 09:41:45,681 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 450 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-23 09:41:45,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 09:41:45,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 09:41:45,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 09:41:45,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 09:41:45,682 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 225 [2018-11-23 09:41:45,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:41:45,682 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 09:41:45,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:41:45,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 09:41:45,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 09:41:45,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 09:41:45,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:41:45,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 09:41:46,120 WARN L180 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 75 [2018-11-23 09:41:46,224 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 09:41:46,224 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a28~0)| ~a28~0) (= |old(~a25~0)| ~a25~0)) [2018-11-23 09:41:46,224 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 09:41:46,224 INFO L448 ceAbstractionStarter]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,224 INFO L448 ceAbstractionStarter]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,224 INFO L448 ceAbstractionStarter]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,224 INFO L448 ceAbstractionStarter]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,224 INFO L448 ceAbstractionStarter]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L565(line 565) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L532(line 532) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L499(line 499) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L433(line 433) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 210) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L568(line 568) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L502(line 502) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L469(line 469) no Hoare annotation was computed. [2018-11-23 09:41:46,225 INFO L448 ceAbstractionStarter]: For program point L436(line 436) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 246) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L338(lines 338 347) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 80) no Hoare annotation was computed. [2018-11-23 09:41:46,226 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L571(line 571) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L538(line 538) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L472(line 472) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,227 INFO L448 ceAbstractionStarter]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L574(line 574) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L541(line 541) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L508(line 508) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L475(line 475) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L442(line 442) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2018-11-23 09:41:46,228 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L511(line 511) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2018-11-23 09:41:46,229 INFO L448 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 583) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 416) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L381(lines 381 387) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 326) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L580(line 580) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L514(line 514) no Hoare annotation was computed. [2018-11-23 09:41:46,230 INFO L448 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L415(line 415) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L517(line 517) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L451(line 451) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L418(line 418) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,231 INFO L448 ceAbstractionStarter]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L553(line 553) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L520(line 520) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L487(line 487) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L454(line 454) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L421(line 421) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,232 INFO L448 ceAbstractionStarter]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse12 (= 1 |old(~a19~0)|)) (.cse1 (= 1 |old(~a11~0)|)) (.cse13 (= 1 |old(~a25~0)|))) (let ((.cse4 (not (= 7 |old(~a28~0)|))) (.cse5 (not .cse13)) (.cse8 (= 1 ~a11~0)) (.cse10 (= 8 ~a17~0)) (.cse9 (= 1 ~a19~0)) (.cse7 (not .cse1)) (.cse6 (not .cse12)) (.cse11 (not (= 8 |old(~a17~0)|))) (.cse0 (not (= 1 ~a21~0))) (.cse2 (= |old(~a28~0)| ~a28~0)) (.cse3 (= |old(~a25~0)| ~a25~0))) (and (or .cse0 .cse1 (and .cse2 .cse3 (not (= ~a11~0 1)))) (or .cse0 .cse4 .cse5 .cse6 .cse7 (and .cse8 (= 7 ~a17~0) .cse9) (not (= 7 |old(~a17~0)|))) (or .cse0 (< 9 |old(~a28~0)|) (and .cse2 .cse3)) (or (and .cse8 .cse10 .cse9 .cse3 (= 10 ~a28~0)) .cse0 (not (= 10 |old(~a28~0)|)) .cse5 .cse6 .cse11 .cse7) (or .cse12 .cse0 .cse4 .cse11 (and .cse8 .cse10 (not .cse9)) .cse7 .cse13) (or .cse0 .cse5 .cse6 .cse11 (and .cse8 .cse10 .cse9) (not (= 9 |old(~a28~0)|)) .cse7) (or .cse0 .cse6 (and (= ~a11~0 0) (= ~a17~0 8) (= ~a19~0 1)) (= 0 |old(~a28~0)|) (not (= 0 |old(~a11~0)|)) .cse11 (= |calculate_output_#in~input| 0)) (or .cse0 (and .cse2 (<= ~a17~0 7) .cse3) (< 7 |old(~a17~0)|))))) [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L589(line 589) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L490(line 490) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L424(line 424) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,233 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L592(line 592) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L559(line 559) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L526(line 526) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L493(line 493) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L460(line 460) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L427(line 427) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L262(lines 262 274) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L562(line 562) no Hoare annotation was computed. [2018-11-23 09:41:46,234 INFO L448 ceAbstractionStarter]: For program point L529(line 529) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L496(line 496) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L463(line 463) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L430(line 430) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L298(lines 298 307) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L332(lines 332 335) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a11~0 0) (= ~a25~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7) (= ~a21~0 1)) [2018-11-23 09:41:46,235 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (not (= 1 |old(~a19~0)|)) (not (= 0 |old(~a11~0)|)) (not (= 8 |old(~a17~0)|)) (and (= ~a11~0 0) (= ~a17~0 8) (= |old(~a25~0)| ~a25~0) (= ~a19~0 1) (= ~a28~0 7)) (not (= 0 |old(~a25~0)|))) [2018-11-23 09:41:46,235 INFO L444 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (<= ~a28~0 9) (not (= 0 |old(~a11~0)|)) (not (= ~a11~0 1)) (<= ~a17~0 7) (not (= 1 |old(~a19~0)|)) (and (= 1 ~a25~0) (= 8 ~a17~0) (= 1 ~a19~0) (= 10 ~a28~0)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|))) [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2018-11-23 09:41:46,235 INFO L444 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (<= ~a28~0 9) (not (= 0 |old(~a11~0)|)) (not (= ~a11~0 1)) (<= ~a17~0 7) (not (= 1 |old(~a19~0)|)) (and (= 1 ~a25~0) (= 8 ~a17~0) (= 1 ~a19~0) (= 10 ~a28~0)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|))) [2018-11-23 09:41:46,236 INFO L448 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2018-11-23 09:41:46,236 INFO L448 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2018-11-23 09:41:46,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:41:46 BoogieIcfgContainer [2018-11-23 09:41:46,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 09:41:46,246 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 09:41:46,246 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 09:41:46,246 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 09:41:46,246 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:41:32" (3/4) ... [2018-11-23 09:41:46,256 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 09:41:46,261 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 09:41:46,261 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 09:41:46,261 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 09:41:46,271 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 09:41:46,272 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 09:41:46,291 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(1 == a21) || !(7 == \old(a28))) || a28 <= 9) || !(0 == \old(a11))) || !(a11 == 1)) || a17 <= 7) || !(1 == \old(a19))) || (((1 == a25 && 8 == a17) && 1 == a19) && 10 == a28)) || !(8 == \old(a17))) || !(0 == \old(a25)) [2018-11-23 09:41:46,365 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_18044115-dec3-4660-8105-ecc5a16aa6e1/bin-2019/utaipan/witness.graphml [2018-11-23 09:41:46,365 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 09:41:46,366 INFO L168 Benchmark]: Toolchain (without parser) took 14998.32 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 611.8 MB). Free memory was 957.6 MB in the beginning and 1.2 GB in the end (delta: -203.7 MB). Peak memory consumption was 408.2 MB. Max. memory is 11.5 GB. [2018-11-23 09:41:46,367 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:41:46,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.34 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 925.4 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-23 09:41:46,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 925.4 MB in the beginning and 1.1 GB in the end (delta: -201.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-11-23 09:41:46,367 INFO L168 Benchmark]: Boogie Preprocessor took 53.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 09:41:46,367 INFO L168 Benchmark]: RCFGBuilder took 796.90 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: 98.6 MB). Peak memory consumption was 98.6 MB. Max. memory is 11.5 GB. [2018-11-23 09:41:46,368 INFO L168 Benchmark]: TraceAbstraction took 13601.34 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 480.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -170.0 MB). Peak memory consumption was 310.3 MB. Max. memory is 11.5 GB. [2018-11-23 09:41:46,368 INFO L168 Benchmark]: Witness Printer took 119.72 ms. Allocated memory is still 1.6 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2018-11-23 09:41:46,370 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 352.34 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 925.4 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 925.4 MB in the beginning and 1.1 GB in the end (delta: -201.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 796.90 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: 98.6 MB). Peak memory consumption was 98.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13601.34 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 480.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -170.0 MB). Peak memory consumption was 310.3 MB. Max. memory is 11.5 GB. * Witness Printer took 119.72 ms. Allocated memory is still 1.6 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 583]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((!(1 == a21) || !(7 == \old(a28))) || a28 <= 9) || !(0 == \old(a11))) || !(a11 == 1)) || a17 <= 7) || !(1 == \old(a19))) || (((1 == a25 && 8 == a17) && 1 == a19) && 10 == a28)) || !(8 == \old(a17))) || !(0 == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. SAFE Result, 13.5s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 8.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 1361 SDtfs, 4965 SDslu, 959 SDs, 0 SdLazy, 6721 SolverSat, 1380 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1103 GetRequests, 1029 SyntacticMatches, 12 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2336occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.4s AbstIntTime, 3 AbstIntIterations, 1 AbstIntStrong, 0.9979502878039326 AbsIntWeakeningRatio, 0.1722488038277512 AbsIntAvgWeakeningVarsNumRemoved, 26.727272727272727 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 44 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 84 PreInvPairs, 142 NumberOfFragments, 397 HoareAnnotationTreeSize, 84 FomulaSimplifications, 1932 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1518 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2141 NumberOfCodeBlocks, 2141 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2530 ConstructedInterpolants, 0 QuantifiedInterpolants, 2280847 SizeOfPredicates, 4 NumberOfNonLiveVariables, 915 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 529/571 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...