./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label11_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label11_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/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 8bc5807873c5a4343353326fda69b22e512eabea ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 12:10:31,415 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 12:10:31,416 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 12:10:31,422 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 12:10:31,422 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 12:10:31,423 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 12:10:31,423 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 12:10:31,424 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 12:10:31,425 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 12:10:31,425 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 12:10:31,426 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 12:10:31,426 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 12:10:31,426 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 12:10:31,427 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 12:10:31,427 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 12:10:31,428 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 12:10:31,428 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 12:10:31,429 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 12:10:31,430 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 12:10:31,431 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 12:10:31,431 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 12:10:31,432 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 12:10:31,433 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 12:10:31,433 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 12:10:31,433 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 12:10:31,434 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 12:10:31,434 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 12:10:31,435 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 12:10:31,435 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 12:10:31,436 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 12:10:31,436 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 12:10:31,436 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 12:10:31,436 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 12:10:31,436 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 12:10:31,437 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 12:10:31,437 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 12:10:31,437 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 12:10:31,444 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 12:10:31,444 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 12:10:31,445 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 12:10:31,445 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 12:10:31,445 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 12:10:31,445 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 12:10:31,445 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 12:10:31,445 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 12:10:31,445 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 12:10:31,445 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 12:10:31,445 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 12:10:31,446 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 12:10:31,446 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 12:10:31,446 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 12:10:31,446 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 12:10:31,446 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 12:10:31,446 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 12:10:31,446 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 12:10:31,446 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 12:10:31,446 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 12:10:31,447 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 12:10:31,447 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 12:10:31,447 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 12:10:31,447 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 12:10:31,447 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 12:10:31,447 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 12:10:31,447 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 12:10:31,447 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 12:10:31,447 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 12:10:31,447 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 12:10:31,447 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 12:10:31,448 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 12:10:31,448 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 12:10:31,448 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 12:10:31,448 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 12:10:31,448 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 12:10:31,448 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_082ce05d-92e4-4b88-90b2-65093d94e04f/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 -> 8bc5807873c5a4343353326fda69b22e512eabea [2018-12-02 12:10:31,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 12:10:31,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 12:10:31,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 12:10:31,475 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 12:10:31,475 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 12:10:31,475 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label11_true-unreach-call_false-termination.c [2018-12-02 12:10:31,510 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/data/1e2266927/743a84f8bcb24380afa730eed0c9f0a0/FLAGa04581f97 [2018-12-02 12:10:31,983 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 12:10:31,983 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/sv-benchmarks/c/eca-rers2012/Problem02_label11_true-unreach-call_false-termination.c [2018-12-02 12:10:31,990 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/data/1e2266927/743a84f8bcb24380afa730eed0c9f0a0/FLAGa04581f97 [2018-12-02 12:10:32,000 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/data/1e2266927/743a84f8bcb24380afa730eed0c9f0a0 [2018-12-02 12:10:32,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 12:10:32,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 12:10:32,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 12:10:32,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 12:10:32,005 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 12:10:32,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:10:32" (1/1) ... [2018-12-02 12:10:32,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f79c046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32, skipping insertion in model container [2018-12-02 12:10:32,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:10:32" (1/1) ... [2018-12-02 12:10:32,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 12:10:32,035 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 12:10:32,208 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:10:32,211 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 12:10:32,257 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:10:32,306 INFO L195 MainTranslator]: Completed translation [2018-12-02 12:10:32,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32 WrapperNode [2018-12-02 12:10:32,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 12:10:32,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 12:10:32,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 12:10:32,307 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 12:10:32,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32" (1/1) ... [2018-12-02 12:10:32,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32" (1/1) ... [2018-12-02 12:10:32,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 12:10:32,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 12:10:32,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 12:10:32,326 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 12:10:32,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32" (1/1) ... [2018-12-02 12:10:32,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32" (1/1) ... [2018-12-02 12:10:32,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32" (1/1) ... [2018-12-02 12:10:32,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32" (1/1) ... [2018-12-02 12:10:32,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32" (1/1) ... [2018-12-02 12:10:32,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32" (1/1) ... [2018-12-02 12:10:32,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32" (1/1) ... [2018-12-02 12:10:32,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 12:10:32,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 12:10:32,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 12:10:32,363 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 12:10:32,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/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 [2018-12-02 12:10:32,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 12:10:32,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 12:10:32,397 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-02 12:10:32,397 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-02 12:10:32,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 12:10:32,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 12:10:32,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 12:10:32,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 12:10:32,948 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 12:10:32,948 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 12:10:32,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:10:32 BoogieIcfgContainer [2018-12-02 12:10:32,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 12:10:32,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 12:10:32,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 12:10:32,952 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 12:10:32,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:10:32" (1/3) ... [2018-12-02 12:10:32,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b039ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:10:32, skipping insertion in model container [2018-12-02 12:10:32,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:32" (2/3) ... [2018-12-02 12:10:32,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b039ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:10:32, skipping insertion in model container [2018-12-02 12:10:32,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:10:32" (3/3) ... [2018-12-02 12:10:32,955 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label11_true-unreach-call_false-termination.c [2018-12-02 12:10:32,963 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 12:10:32,970 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 12:10:32,983 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 12:10:33,010 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 12:10:33,010 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 12:10:33,010 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 12:10:33,010 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 12:10:33,010 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 12:10:33,010 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 12:10:33,010 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 12:10:33,011 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 12:10:33,028 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2018-12-02 12:10:33,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-12-02 12:10:33,036 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:10:33,037 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] [2018-12-02 12:10:33,039 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:10:33,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:33,043 INFO L82 PathProgramCache]: Analyzing trace with hash 341704158, now seen corresponding path program 1 times [2018-12-02 12:10:33,044 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:10:33,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:33,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:33,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:33,074 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:10:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:33,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:10:33,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:10:33,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 12:10:33,327 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 12:10:33,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 12:10:33,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 12:10:33,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 12:10:33,340 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2018-12-02 12:10:33,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:10:33,760 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2018-12-02 12:10:33,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 12:10:33,761 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2018-12-02 12:10:33,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:10:33,769 INFO L225 Difference]: With dead ends: 615 [2018-12-02 12:10:33,770 INFO L226 Difference]: Without dead ends: 317 [2018-12-02 12:10:33,773 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 [2018-12-02 12:10:33,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2018-12-02 12:10:33,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2018-12-02 12:10:33,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-12-02 12:10:33,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2018-12-02 12:10:33,817 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 114 [2018-12-02 12:10:33,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:10:33,818 INFO L480 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2018-12-02 12:10:33,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 12:10:33,818 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2018-12-02 12:10:33,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-12-02 12:10:33,821 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:10:33,822 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-02 12:10:33,822 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:10:33,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:33,822 INFO L82 PathProgramCache]: Analyzing trace with hash 2131456323, now seen corresponding path program 1 times [2018-12-02 12:10:33,823 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:10:33,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:33,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:33,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:33,824 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:10:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:10:33,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:10:33,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 12:10:33,914 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 12:10:33,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 12:10:33,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 12:10:33,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 12:10:33,916 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 6 states. [2018-12-02 12:10:34,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:10:34,390 INFO L93 Difference]: Finished difference Result 962 states and 1500 transitions. [2018-12-02 12:10:34,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 12:10:34,391 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-12-02 12:10:34,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:10:34,394 INFO L225 Difference]: With dead ends: 962 [2018-12-02 12:10:34,394 INFO L226 Difference]: Without dead ends: 651 [2018-12-02 12:10:34,395 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 [2018-12-02 12:10:34,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2018-12-02 12:10:34,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 625. [2018-12-02 12:10:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-12-02 12:10:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 924 transitions. [2018-12-02 12:10:34,417 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 924 transitions. Word has length 129 [2018-12-02 12:10:34,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:10:34,418 INFO L480 AbstractCegarLoop]: Abstraction has 625 states and 924 transitions. [2018-12-02 12:10:34,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 12:10:34,418 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 924 transitions. [2018-12-02 12:10:34,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-12-02 12:10:34,420 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:10:34,420 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-12-02 12:10:34,420 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:10:34,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:34,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1872771192, now seen corresponding path program 1 times [2018-12-02 12:10:34,421 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:10:34,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:34,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:34,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:34,421 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:10:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 12:10:34,504 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:34,504 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 12:10:34,504 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-12-02 12:10:34,506 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [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], [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], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-02 12:10:34,530 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 12:10:34,530 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 12:10:34,751 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 12:10:34,752 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 times. Never merged. Never widened. Performed 1284 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1284 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 38 variables. [2018-12-02 12:10:34,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:34,760 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 12:10:34,959 INFO L227 lantSequenceWeakener]: Weakened 128 states. On average, predicates are now at 80.9% of their original sizes. [2018-12-02 12:10:34,959 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 12:10:34,982 INFO L418 sIntCurrentIteration]: We unified 136 AI predicates to 136 [2018-12-02 12:10:34,983 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 12:10:34,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 12:10:34,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-02 12:10:34,983 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 12:10:34,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 12:10:34,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 12:10:34,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 12:10:34,984 INFO L87 Difference]: Start difference. First operand 625 states and 924 transitions. Second operand 6 states. [2018-12-02 12:10:36,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:10:36,991 INFO L93 Difference]: Finished difference Result 1392 states and 2056 transitions. [2018-12-02 12:10:36,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 12:10:36,991 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-12-02 12:10:36,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:10:36,993 INFO L225 Difference]: With dead ends: 1392 [2018-12-02 12:10:36,993 INFO L226 Difference]: Without dead ends: 773 [2018-12-02 12:10:36,994 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-02 12:10:36,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2018-12-02 12:10:37,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 771. [2018-12-02 12:10:37,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 771 states. [2018-12-02 12:10:37,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1077 transitions. [2018-12-02 12:10:37,007 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1077 transitions. Word has length 137 [2018-12-02 12:10:37,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:10:37,007 INFO L480 AbstractCegarLoop]: Abstraction has 771 states and 1077 transitions. [2018-12-02 12:10:37,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 12:10:37,007 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1077 transitions. [2018-12-02 12:10:37,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-12-02 12:10:37,009 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:10:37,009 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-12-02 12:10:37,009 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:10:37,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:37,010 INFO L82 PathProgramCache]: Analyzing trace with hash -892204617, now seen corresponding path program 1 times [2018-12-02 12:10:37,010 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:10:37,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:37,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:37,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:37,010 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:10:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:37,091 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 12:10:37,091 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:37,091 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 12:10:37,092 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-12-02 12:10:37,092 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [33], [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], [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], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-02 12:10:37,095 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 12:10:37,095 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 12:10:37,304 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 12:10:37,304 INFO L272 AbstractInterpreter]: Visited 119 different actions 352 times. Merged at 6 different actions 15 times. Never widened. Performed 4019 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4019 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-12-02 12:10:37,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:37,312 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 12:10:37,445 INFO L227 lantSequenceWeakener]: Weakened 143 states. On average, predicates are now at 84.52% of their original sizes. [2018-12-02 12:10:37,445 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 12:10:37,481 INFO L418 sIntCurrentIteration]: We unified 145 AI predicates to 145 [2018-12-02 12:10:37,482 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 12:10:37,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 12:10:37,482 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2018-12-02 12:10:37,482 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 12:10:37,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 12:10:37,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 12:10:37,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 12:10:37,483 INFO L87 Difference]: Start difference. First operand 771 states and 1077 transitions. Second operand 9 states. [2018-12-02 12:10:39,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:10:39,988 INFO L93 Difference]: Finished difference Result 1858 states and 2647 transitions. [2018-12-02 12:10:39,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-02 12:10:39,989 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 146 [2018-12-02 12:10:39,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:10:39,991 INFO L225 Difference]: With dead ends: 1858 [2018-12-02 12:10:39,991 INFO L226 Difference]: Without dead ends: 1093 [2018-12-02 12:10:39,992 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-12-02 12:10:39,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2018-12-02 12:10:40,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1075. [2018-12-02 12:10:40,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1075 states. [2018-12-02 12:10:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1471 transitions. [2018-12-02 12:10:40,014 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1471 transitions. Word has length 146 [2018-12-02 12:10:40,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:10:40,015 INFO L480 AbstractCegarLoop]: Abstraction has 1075 states and 1471 transitions. [2018-12-02 12:10:40,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 12:10:40,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1471 transitions. [2018-12-02 12:10:40,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-12-02 12:10:40,017 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:10:40,017 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2018-12-02 12:10:40,017 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:10:40,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:40,017 INFO L82 PathProgramCache]: Analyzing trace with hash -937750809, now seen corresponding path program 1 times [2018-12-02 12:10:40,017 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:10:40,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:40,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:40,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:40,018 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:10:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:40,074 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:10:40,074 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:40,075 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 12:10:40,075 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-12-02 12:10:40,075 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [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], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-02 12:10:40,078 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 12:10:40,078 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 12:10:40,170 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 12:10:40,170 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 times. Merged at 4 different actions 4 times. Never widened. Performed 2547 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2547 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-12-02 12:10:40,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:40,172 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 12:10:40,273 INFO L227 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 80.9% of their original sizes. [2018-12-02 12:10:40,274 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 12:10:40,310 INFO L418 sIntCurrentIteration]: We unified 144 AI predicates to 144 [2018-12-02 12:10:40,311 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 12:10:40,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 12:10:40,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-02 12:10:40,311 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 12:10:40,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 12:10:40,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 12:10:40,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 12:10:40,312 INFO L87 Difference]: Start difference. First operand 1075 states and 1471 transitions. Second operand 10 states. [2018-12-02 12:10:42,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:10:42,326 INFO L93 Difference]: Finished difference Result 2440 states and 3327 transitions. [2018-12-02 12:10:42,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-02 12:10:42,326 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2018-12-02 12:10:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:10:42,330 INFO L225 Difference]: With dead ends: 2440 [2018-12-02 12:10:42,330 INFO L226 Difference]: Without dead ends: 1371 [2018-12-02 12:10:42,332 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-12-02 12:10:42,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2018-12-02 12:10:42,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1368. [2018-12-02 12:10:42,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1368 states. [2018-12-02 12:10:42,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1811 transitions. [2018-12-02 12:10:42,359 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1811 transitions. Word has length 145 [2018-12-02 12:10:42,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:10:42,360 INFO L480 AbstractCegarLoop]: Abstraction has 1368 states and 1811 transitions. [2018-12-02 12:10:42,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 12:10:42,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1811 transitions. [2018-12-02 12:10:42,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-12-02 12:10:42,363 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:10:42,363 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] [2018-12-02 12:10:42,363 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:10:42,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:42,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1845816671, now seen corresponding path program 1 times [2018-12-02 12:10:42,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:10:42,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:42,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:42,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:42,364 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:10:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:42,474 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:10:42,474 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:42,474 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 12:10:42,474 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-12-02 12:10:42,474 INFO L205 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], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-02 12:10:42,477 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 12:10:42,477 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 12:10:42,615 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 12:10:42,615 INFO L272 AbstractInterpreter]: Visited 119 different actions 348 times. Merged at 6 different actions 13 times. Never widened. Performed 4193 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4193 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-12-02 12:10:42,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:42,618 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 12:10:42,619 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:42,619 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/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 [2018-12-02 12:10:42,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:42,625 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 12:10:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:42,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:10:42,714 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-02 12:10:42,715 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 12:10:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-02 12:10:42,772 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-02 12:10:42,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-12-02 12:10:42,772 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 12:10:42,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 12:10:42,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 12:10:42,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-12-02 12:10:42,773 INFO L87 Difference]: Start difference. First operand 1368 states and 1811 transitions. Second operand 3 states. [2018-12-02 12:10:43,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:10:43,037 INFO L93 Difference]: Finished difference Result 3756 states and 5157 transitions. [2018-12-02 12:10:43,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 12:10:43,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2018-12-02 12:10:43,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:10:43,041 INFO L225 Difference]: With dead ends: 3756 [2018-12-02 12:10:43,041 INFO L226 Difference]: Without dead ends: 2394 [2018-12-02 12:10:43,043 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 299 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-12-02 12:10:43,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2018-12-02 12:10:43,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2394. [2018-12-02 12:10:43,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2394 states. [2018-12-02 12:10:43,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 3063 transitions. [2018-12-02 12:10:43,071 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 3063 transitions. Word has length 149 [2018-12-02 12:10:43,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:10:43,072 INFO L480 AbstractCegarLoop]: Abstraction has 2394 states and 3063 transitions. [2018-12-02 12:10:43,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 12:10:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 3063 transitions. [2018-12-02 12:10:43,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-12-02 12:10:43,075 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:10:43,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:10:43,075 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:10:43,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:43,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1715495925, now seen corresponding path program 1 times [2018-12-02 12:10:43,075 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:10:43,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:43,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:43,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:43,076 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:10:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:43,126 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:10:43,127 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:43,127 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 12:10:43,127 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-12-02 12:10:43,127 INFO L205 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], [127], [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], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-02 12:10:43,128 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 12:10:43,129 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 12:10:43,285 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 12:10:43,285 INFO L272 AbstractInterpreter]: Visited 118 different actions 347 times. Merged at 6 different actions 13 times. Never widened. Performed 4126 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4126 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-12-02 12:10:43,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:43,286 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 12:10:43,385 INFO L227 lantSequenceWeakener]: Weakened 159 states. On average, predicates are now at 84.35% of their original sizes. [2018-12-02 12:10:43,385 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 12:10:43,426 INFO L418 sIntCurrentIteration]: We unified 161 AI predicates to 161 [2018-12-02 12:10:43,427 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 12:10:43,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 12:10:43,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-02 12:10:43,427 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 12:10:43,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 12:10:43,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 12:10:43,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 12:10:43,427 INFO L87 Difference]: Start difference. First operand 2394 states and 3063 transitions. Second operand 10 states. [2018-12-02 12:10:46,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:10:46,201 INFO L93 Difference]: Finished difference Result 6329 states and 8444 transitions. [2018-12-02 12:10:46,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-12-02 12:10:46,201 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2018-12-02 12:10:46,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:10:46,207 INFO L225 Difference]: With dead ends: 6329 [2018-12-02 12:10:46,207 INFO L226 Difference]: Without dead ends: 3941 [2018-12-02 12:10:46,210 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 173 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2018-12-02 12:10:46,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2018-12-02 12:10:46,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3899. [2018-12-02 12:10:46,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3899 states. [2018-12-02 12:10:46,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 5015 transitions. [2018-12-02 12:10:46,257 INFO L78 Accepts]: Start accepts. Automaton has 3899 states and 5015 transitions. Word has length 162 [2018-12-02 12:10:46,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:10:46,257 INFO L480 AbstractCegarLoop]: Abstraction has 3899 states and 5015 transitions. [2018-12-02 12:10:46,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 12:10:46,257 INFO L276 IsEmpty]: Start isEmpty. Operand 3899 states and 5015 transitions. [2018-12-02 12:10:46,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-12-02 12:10:46,262 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:10:46,262 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:10:46,262 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:10:46,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:46,262 INFO L82 PathProgramCache]: Analyzing trace with hash 82315822, now seen corresponding path program 1 times [2018-12-02 12:10:46,263 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:10:46,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:46,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:46,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:46,263 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:10:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 89 proven. 22 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-12-02 12:10:46,314 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:46,314 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 12:10:46,314 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-12-02 12:10:46,314 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [21], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [99], [100], [104], [107], [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], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-02 12:10:46,315 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 12:10:46,315 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 12:10:46,514 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 12:10:46,514 INFO L272 AbstractInterpreter]: Visited 121 different actions 484 times. Merged at 8 different actions 33 times. Widened at 1 different actions 1 times. Performed 5852 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5852 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 2 different actions. Largest state had 38 variables. [2018-12-02 12:10:46,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:46,520 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 12:10:46,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:46,520 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/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 [2018-12-02 12:10:46,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:46,586 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 12:10:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:46,637 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:10:46,674 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-12-02 12:10:46,674 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 12:10:46,718 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 89 proven. 22 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-12-02 12:10:46,733 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 12:10:46,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2018-12-02 12:10:46,734 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 12:10:46,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 12:10:46,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 12:10:46,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-12-02 12:10:46,735 INFO L87 Difference]: Start difference. First operand 3899 states and 5015 transitions. Second operand 8 states. [2018-12-02 12:10:47,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:10:47,811 INFO L93 Difference]: Finished difference Result 10074 states and 13087 transitions. [2018-12-02 12:10:47,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 12:10:47,811 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 197 [2018-12-02 12:10:47,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:10:47,823 INFO L225 Difference]: With dead ends: 10074 [2018-12-02 12:10:47,823 INFO L226 Difference]: Without dead ends: 5605 [2018-12-02 12:10:47,829 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 398 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2018-12-02 12:10:47,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5605 states. [2018-12-02 12:10:47,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5605 to 4410. [2018-12-02 12:10:47,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4410 states. [2018-12-02 12:10:47,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4410 states to 4410 states and 5455 transitions. [2018-12-02 12:10:47,889 INFO L78 Accepts]: Start accepts. Automaton has 4410 states and 5455 transitions. Word has length 197 [2018-12-02 12:10:47,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:10:47,890 INFO L480 AbstractCegarLoop]: Abstraction has 4410 states and 5455 transitions. [2018-12-02 12:10:47,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 12:10:47,890 INFO L276 IsEmpty]: Start isEmpty. Operand 4410 states and 5455 transitions. [2018-12-02 12:10:47,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-12-02 12:10:47,895 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:10:47,895 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:10:47,895 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:10:47,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:47,895 INFO L82 PathProgramCache]: Analyzing trace with hash -34090964, now seen corresponding path program 1 times [2018-12-02 12:10:47,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:10:47,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:47,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:47,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:47,896 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:10:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:48,008 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 97 proven. 51 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-12-02 12:10:48,008 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:48,008 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 12:10:48,008 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 200 with the following transitions: [2018-12-02 12:10:48,009 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [45], [50], [52], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [107], [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], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-02 12:10:48,010 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 12:10:48,010 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 12:10:48,146 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 12:10:48,146 INFO L272 AbstractInterpreter]: Visited 123 different actions 360 times. Merged at 8 different actions 17 times. Never widened. Performed 4272 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4272 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 5 fixpoints after 2 different actions. Largest state had 38 variables. [2018-12-02 12:10:48,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:48,147 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 12:10:48,147 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:48,147 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 12:10:48,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:48,153 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 12:10:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:48,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:10:48,236 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-02 12:10:48,236 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 12:10:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 111 proven. 18 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-12-02 12:10:48,312 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 12:10:48,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 17 [2018-12-02 12:10:48,312 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 12:10:48,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-02 12:10:48,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-02 12:10:48,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2018-12-02 12:10:48,313 INFO L87 Difference]: Start difference. First operand 4410 states and 5455 transitions. Second operand 15 states. [2018-12-02 12:10:49,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:10:49,827 INFO L93 Difference]: Finished difference Result 8476 states and 10706 transitions. [2018-12-02 12:10:49,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-02 12:10:49,828 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 199 [2018-12-02 12:10:49,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:10:49,833 INFO L225 Difference]: With dead ends: 8476 [2018-12-02 12:10:49,833 INFO L226 Difference]: Without dead ends: 3620 [2018-12-02 12:10:49,837 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 408 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=277, Invalid=715, Unknown=0, NotChecked=0, Total=992 [2018-12-02 12:10:49,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3620 states. [2018-12-02 12:10:49,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3620 to 3325. [2018-12-02 12:10:49,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3325 states. [2018-12-02 12:10:49,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3325 states to 3325 states and 3944 transitions. [2018-12-02 12:10:49,875 INFO L78 Accepts]: Start accepts. Automaton has 3325 states and 3944 transitions. Word has length 199 [2018-12-02 12:10:49,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:10:49,875 INFO L480 AbstractCegarLoop]: Abstraction has 3325 states and 3944 transitions. [2018-12-02 12:10:49,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-02 12:10:49,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3325 states and 3944 transitions. [2018-12-02 12:10:49,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-12-02 12:10:49,879 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:10:49,879 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-02 12:10:49,879 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:10:49,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:49,880 INFO L82 PathProgramCache]: Analyzing trace with hash 915543543, now seen corresponding path program 1 times [2018-12-02 12:10:49,880 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:10:49,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:49,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:49,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:49,880 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:10:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:49,946 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 109 proven. 52 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-02 12:10:49,947 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:49,947 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 12:10:49,947 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-12-02 12:10:49,947 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [67], [68], [72], [76], [80], [84], [88], [92], [96], [99], [100], [104], [107], [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], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-02 12:10:49,948 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 12:10:49,948 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 12:10:50,138 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 12:10:50,138 INFO L272 AbstractInterpreter]: Visited 121 different actions 483 times. Merged at 8 different actions 32 times. Never widened. Performed 5856 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5856 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 38 variables. [2018-12-02 12:10:50,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:50,140 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 12:10:50,140 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:50,140 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 12:10:50,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:50,146 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 12:10:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:50,184 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:10:50,238 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-02 12:10:50,238 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 12:10:50,286 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 121 proven. 28 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-12-02 12:10:50,301 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 12:10:50,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-12-02 12:10:50,301 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 12:10:50,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 12:10:50,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 12:10:50,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-02 12:10:50,302 INFO L87 Difference]: Start difference. First operand 3325 states and 3944 transitions. Second operand 11 states. [2018-12-02 12:10:50,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:10:50,819 INFO L93 Difference]: Finished difference Result 5478 states and 6564 transitions. [2018-12-02 12:10:50,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-02 12:10:50,819 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 205 [2018-12-02 12:10:50,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:10:50,825 INFO L225 Difference]: With dead ends: 5478 [2018-12-02 12:10:50,825 INFO L226 Difference]: Without dead ends: 2856 [2018-12-02 12:10:50,828 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 412 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2018-12-02 12:10:50,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2018-12-02 12:10:50,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2845. [2018-12-02 12:10:50,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2845 states. [2018-12-02 12:10:50,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2845 states to 2845 states and 3203 transitions. [2018-12-02 12:10:50,863 INFO L78 Accepts]: Start accepts. Automaton has 2845 states and 3203 transitions. Word has length 205 [2018-12-02 12:10:50,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:10:50,864 INFO L480 AbstractCegarLoop]: Abstraction has 2845 states and 3203 transitions. [2018-12-02 12:10:50,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 12:10:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2845 states and 3203 transitions. [2018-12-02 12:10:50,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-12-02 12:10:50,867 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:10:50,867 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 12:10:50,867 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:10:50,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:50,868 INFO L82 PathProgramCache]: Analyzing trace with hash 638517494, now seen corresponding path program 1 times [2018-12-02 12:10:50,868 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:10:50,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:50,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:50,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:10:50,868 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:10:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:50,953 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 70 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:10:50,954 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:50,954 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 12:10:50,954 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-12-02 12:10:50,954 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [123], [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], [324], [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], [591], [593], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-02 12:10:50,955 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 12:10:50,955 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 12:10:51,112 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 12:10:51,113 INFO L272 AbstractInterpreter]: Visited 119 different actions 348 times. Merged at 6 different actions 13 times. Never widened. Performed 4222 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4222 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-12-02 12:10:51,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:10:51,114 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 12:10:51,114 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 12:10:51,114 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 12:10:51,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:10:51,120 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 12:10:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:10:51,154 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:10:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-12-02 12:10:51,178 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 12:10:51,214 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-12-02 12:10:51,229 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-02 12:10:51,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-12-02 12:10:51,229 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 12:10:51,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 12:10:51,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 12:10:51,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-12-02 12:10:51,230 INFO L87 Difference]: Start difference. First operand 2845 states and 3203 transitions. Second operand 3 states. [2018-12-02 12:10:51,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:10:51,437 INFO L93 Difference]: Finished difference Result 5972 states and 6774 transitions. [2018-12-02 12:10:51,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 12:10:51,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2018-12-02 12:10:51,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:10:51,438 INFO L225 Difference]: With dead ends: 5972 [2018-12-02 12:10:51,438 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 12:10:51,443 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 440 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-12-02 12:10:51,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 12:10:51,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 12:10:51,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 12:10:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 12:10:51,444 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 220 [2018-12-02 12:10:51,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:10:51,444 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 12:10:51,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 12:10:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 12:10:51,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 12:10:51,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 12:10:51,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 12:10:51,518 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 12:10:51,532 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 12:10:51,550 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 12:10:51,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 12:10:51,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 12:10:51,576 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 12:10:51,579 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 12:10:51,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 12:10:51,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 12:10:51,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 12:10:52,234 WARN L180 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 91 [2018-12-02 12:10:52,432 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 56 [2018-12-02 12:10:52,550 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a28~0)| ~a28~0) (= |old(~a19~0)| ~a19~0) (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|)) [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point L565(line 565) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point L532(line 532) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point L499(line 499) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2018-12-02 12:10:52,552 INFO L448 ceAbstractionStarter]: For program point L433(line 433) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 210) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L568(line 568) no Hoare annotation was computed. [2018-12-02 12:10:52,553 INFO L448 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L502(line 502) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L469(line 469) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L436(line 436) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 246) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L338(lines 338 347) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,554 INFO L448 ceAbstractionStarter]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 80) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L571(line 571) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L538(line 538) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L472(line 472) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,555 INFO L448 ceAbstractionStarter]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L574(line 574) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L541(line 541) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L508(line 508) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L475(line 475) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L442(line 442) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2018-12-02 12:10:52,556 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L511(line 511) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2018-12-02 12:10:52,557 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 416) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L381(lines 381 387) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 326) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L580(line 580) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L514(line 514) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2018-12-02 12:10:52,558 INFO L448 ceAbstractionStarter]: For program point L415(line 415) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 496) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L517(line 517) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L451(line 451) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L418(line 418) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2018-12-02 12:10:52,559 INFO L448 ceAbstractionStarter]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L553(line 553) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L520(line 520) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L487(line 487) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L454(line 454) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L421(line 421) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,560 INFO L448 ceAbstractionStarter]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse16 (not (= 1 ~a21~0))) (.cse17 (not (= 7 |old(~a28~0)|))) (.cse20 (not (= 1 |old(~a19~0)|))) (.cse19 (not (= 0 |old(~a11~0)|))) (.cse21 (not (= 8 |old(~a17~0)|))) (.cse22 (not (= 0 |old(~a25~0)|))) (.cse6 (= ~a25~0 1)) (.cse18 (= ~a25~0 0)) (.cse3 (= ~a17~0 8)) (.cse4 (= ~a19~0 1)) (.cse5 (= ~a28~0 7))) (let ((.cse2 (= |old(~a28~0)| ~a28~0)) (.cse8 (not (= |old(~a17~0)| 8))) (.cse9 (= |old(~a11~0)| |old(~a19~0)|)) (.cse12 (not (= 7 |old(~a17~0)|))) (.cse23 (< |old(~a28~0)| 9)) (.cse14 (= 10 |old(~a28~0)|)) (.cse10 (= |old(~a19~0)| ~a19~0)) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse11 (= 7 ~a17~0)) (.cse15 (< 10 |old(~a28~0)|)) (.cse13 (let ((.cse24 (= ~a21~0 1))) (or (and (not (= ~a28~0 0)) .cse4 .cse24 .cse6 (not (= ~a17~0 0))) (and (= ~a11~0 0) .cse18 .cse3 .cse4 .cse5 .cse24)))) (.cse7 (and (or .cse16 (= 0 |old(~a17~0)|) (not (= 1 |old(~a25~0)|)) .cse20 (= 0 |old(~a28~0)|)) (or .cse16 .cse17 .cse20 .cse19 .cse21 .cse22))) (.cse0 (= |calculate_output_#in~input| 0))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 (or .cse5 .cse6)) .cse7 .cse8 .cse9) (or (< |old(~a28~0)| 10) (and .cse2 .cse10 .cse1 .cse11) .cse12) (or (and .cse2 .cse1 .cse11 .cse13) (or .cse14 .cse7 .cse0) .cse12) (or .cse15 (and .cse2 .cse10 .cse1 (= ~a17~0 |old(~a17~0)|)) .cse8) (or .cse16 .cse17 .cse18 .cse19 .cse0 .cse20 .cse21 .cse22) (or .cse16 .cse19 .cse18 .cse0 .cse15 .cse20 .cse23 .cse8 .cse22) (or .cse15 (or .cse9 .cse12) .cse23 .cse14 (and .cse10 .cse1 .cse11 (<= ~a28~0 10) (<= 9 ~a28~0) (not (= ~a28~0 10)))) (or .cse15 .cse13 (or .cse7 .cse21 .cse0))))) [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L589(line 589) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L490(line 490) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L424(line 424) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,561 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L592(line 592) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L559(line 559) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L526(line 526) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L493(line 493) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L460(line 460) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L427(line 427) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L262(lines 262 274) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2018-12-02 12:10:52,562 INFO L448 ceAbstractionStarter]: For program point L562(line 562) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L529(line 529) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L496(line 496) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L463(line 463) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L430(line 430) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L298(lines 298 307) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L332(lines 332 335) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 12:10:52,563 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)) [2018-12-02 12:10:52,563 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 12:10:52,563 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) (= ~a25~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7)) (not (= 0 |old(~a25~0)|))) [2018-12-02 12:10:52,563 INFO L444 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse1 (= ~a17~0 8))) (let ((.cse3 (let ((.cse4 (= ~a19~0 1)) (.cse5 (= ~a21~0 1))) (or (and (not (= ~a28~0 0)) .cse4 .cse5 (= ~a25~0 1) (not (= ~a17~0 0))) (and (= ~a11~0 0) (= ~a25~0 0) .cse1 .cse4 (= ~a28~0 7) .cse5)))) (.cse0 (= 7 ~a17~0)) (.cse2 (not (= ~a19~0 ~a11~0)))) (or (and (= |old(~a17~0)| ~a17~0) (<= ~a28~0 10)) (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (not (= 0 |old(~a11~0)|)) (and (<= 10 ~a28~0) .cse0) (not (= 0 |old(~a25~0)|)) (and .cse1 .cse2 .cse3) (and .cse0 .cse3) (not (= 1 |old(~a19~0)|)) (and .cse0 (<= 9 ~a28~0) .cse2) (not (= 8 |old(~a17~0)|))))) [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2018-12-02 12:10:52,563 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2018-12-02 12:10:52,564 INFO L444 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (let ((.cse4 (= ~a17~0 8))) (let ((.cse1 (= 7 ~a17~0)) (.cse0 (not (= main_~input~0 0))) (.cse2 (let ((.cse5 (= ~a19~0 1)) (.cse6 (= ~a21~0 1))) (or (and (not (= ~a28~0 0)) .cse5 .cse6 (= ~a25~0 1) (not (= ~a17~0 0))) (and (= ~a11~0 0) (= ~a25~0 0) .cse4 .cse5 (= ~a28~0 7) .cse6)))) (.cse3 (not (= ~a19~0 ~a11~0)))) (or (and (= |old(~a17~0)| ~a17~0) (<= ~a28~0 10)) (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (and .cse0 .cse1 .cse2) (not (= 0 |old(~a11~0)|)) (not (= 1 |old(~a19~0)|)) (and .cse1 (<= 9 ~a28~0) .cse3) (and (<= 10 ~a28~0) .cse1) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and .cse0 .cse2 .cse4 .cse3)))) [2018-12-02 12:10:52,564 INFO L448 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2018-12-02 12:10:52,564 INFO L448 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2018-12-02 12:10:52,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:10:52 BoogieIcfgContainer [2018-12-02 12:10:52,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 12:10:52,573 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 12:10:52,573 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 12:10:52,573 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 12:10:52,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:10:32" (3/4) ... [2018-12-02 12:10:52,577 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 12:10:52,580 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 12:10:52,581 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-02 12:10:52,581 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 12:10:52,590 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 12:10:52,590 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 12:10:52,612 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\old(a17) == a17 && a28 <= 10) || !(1 == a21)) || !(7 == \old(a28))) || !(0 == \old(a11))) || (10 <= a28 && 7 == a17)) || !(0 == \old(a25))) || ((a17 == 8 && !(a19 == a11)) && (((((!(a28 == 0) && a19 == 1) && a21 == 1) && a25 == 1) && !(a17 == 0)) || (((((a11 == 0 && a25 == 0) && a17 == 8) && a19 == 1) && a28 == 7) && a21 == 1)))) || (7 == a17 && (((((!(a28 == 0) && a19 == 1) && a21 == 1) && a25 == 1) && !(a17 == 0)) || (((((a11 == 0 && a25 == 0) && a17 == 8) && a19 == 1) && a28 == 7) && a21 == 1)))) || !(1 == \old(a19))) || ((7 == a17 && 9 <= a28) && !(a19 == a11))) || !(8 == \old(a17)) [2018-12-02 12:10:52,672 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_082ce05d-92e4-4b88-90b2-65093d94e04f/bin-2019/utaipan/witness.graphml [2018-12-02 12:10:52,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 12:10:52,673 INFO L168 Benchmark]: Toolchain (without parser) took 20671.18 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.3 GB). Free memory was 953.5 MB in the beginning and 1.3 GB in the end (delta: -383.1 MB). Peak memory consumption was 894.1 MB. Max. memory is 11.5 GB. [2018-12-02 12:10:52,674 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:10:52,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -194.4 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. [2018-12-02 12:10:52,674 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:10:52,674 INFO L168 Benchmark]: Boogie Preprocessor took 37.06 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-02 12:10:52,674 INFO L168 Benchmark]: RCFGBuilder took 586.05 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: 105.2 MB). Peak memory consumption was 105.2 MB. Max. memory is 11.5 GB. [2018-12-02 12:10:52,674 INFO L168 Benchmark]: TraceAbstraction took 19623.35 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -328.1 MB). Peak memory consumption was 792.9 MB. Max. memory is 11.5 GB. [2018-12-02 12:10:52,675 INFO L168 Benchmark]: Witness Printer took 99.27 ms. Allocated memory is still 2.3 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-12-02 12:10:52,676 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -194.4 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.06 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 586.05 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: 105.2 MB). Peak memory consumption was 105.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19623.35 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -328.1 MB). Peak memory consumption was 792.9 MB. Max. memory is 11.5 GB. * Witness Printer took 99.27 ms. Allocated memory is still 2.3 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 496]: 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: ((((((((((\old(a17) == a17 && a28 <= 10) || !(1 == a21)) || !(7 == \old(a28))) || !(0 == \old(a11))) || (10 <= a28 && 7 == a17)) || !(0 == \old(a25))) || ((a17 == 8 && !(a19 == a11)) && (((((!(a28 == 0) && a19 == 1) && a21 == 1) && a25 == 1) && !(a17 == 0)) || (((((a11 == 0 && a25 == 0) && a17 == 8) && a19 == 1) && a28 == 7) && a21 == 1)))) || (7 == a17 && (((((!(a28 == 0) && a19 == 1) && a21 == 1) && a25 == 1) && !(a17 == 0)) || (((((a11 == 0 && a25 == 0) && a17 == 8) && a19 == 1) && a28 == 7) && a21 == 1)))) || !(1 == \old(a19))) || ((7 == a17 && 9 <= a28) && !(a19 == a11))) || !(8 == \old(a17)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. SAFE Result, 19.5s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 13.8s AutomataDifference, 0.0s DeadEndRemovalTime, 1.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 1152 SDtfs, 8692 SDslu, 1080 SDs, 0 SdLazy, 11472 SolverSat, 1974 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 2680 GetRequests, 2520 SyntacticMatches, 15 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4410occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.5s AbstIntTime, 9 AbstIntIterations, 4 AbstIntStrong, 0.9967329596036226 AbsIntWeakeningRatio, 0.2354948805460751 AbsIntAvgWeakeningVarsNumRemoved, 25.89419795221843 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1592 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 169 PreInvPairs, 233 NumberOfFragments, 786 HoareAnnotationTreeSize, 169 FomulaSimplifications, 10003 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5475 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 2773 NumberOfCodeBlocks, 2773 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3722 ConstructedInterpolants, 0 QuantifiedInterpolants, 1317529 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2523 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 1940/2247 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...