./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.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_7579e0d3-844d-4fce-a206-1cb1e7d5415d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/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 c2ee6781c62be40fa372129eaacaba9832af3ce9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 17:35:10,966 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 17:35:10,967 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 17:35:10,975 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 17:35:10,975 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 17:35:10,976 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 17:35:10,977 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 17:35:10,978 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 17:35:10,979 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 17:35:10,980 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 17:35:10,980 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 17:35:10,981 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 17:35:10,981 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 17:35:10,982 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 17:35:10,983 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 17:35:10,983 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 17:35:10,984 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 17:35:10,985 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 17:35:10,986 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 17:35:10,987 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 17:35:10,988 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 17:35:10,989 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 17:35:10,990 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 17:35:10,991 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 17:35:10,991 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 17:35:10,991 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 17:35:10,992 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 17:35:10,993 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 17:35:10,993 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 17:35:10,994 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 17:35:10,994 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 17:35:10,995 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 17:35:10,995 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 17:35:10,995 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 17:35:10,995 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 17:35:10,996 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 17:35:10,996 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 17:35:11,007 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 17:35:11,007 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 17:35:11,007 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 17:35:11,008 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 17:35:11,008 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 17:35:11,008 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 17:35:11,008 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 17:35:11,008 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 17:35:11,008 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 17:35:11,009 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 17:35:11,009 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 17:35:11,009 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 17:35:11,009 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 17:35:11,010 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 17:35:11,010 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 17:35:11,010 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 17:35:11,010 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 17:35:11,010 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 17:35:11,010 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 17:35:11,010 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 17:35:11,011 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 17:35:11,011 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 17:35:11,011 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 17:35:11,011 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 17:35:11,011 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 17:35:11,011 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 17:35:11,012 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 17:35:11,012 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 17:35:11,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:35:11,012 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 17:35:11,012 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 17:35:11,012 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 17:35:11,013 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 17:35:11,013 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 17:35:11,013 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 17:35:11,013 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 17:35:11,013 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_7579e0d3-844d-4fce-a206-1cb1e7d5415d/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 -> c2ee6781c62be40fa372129eaacaba9832af3ce9 [2018-12-08 17:35:11,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 17:35:11,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 17:35:11,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 17:35:11,045 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 17:35:11,045 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 17:35:11,045 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c [2018-12-08 17:35:11,080 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/bin-2019/utaipan/data/57ffb1b52/0588046676b4496ab807ea56ad130366/FLAG3856a267f [2018-12-08 17:35:11,508 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 17:35:11,508 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/sv-benchmarks/c/eca-rers2012/Problem10_label49_true-unreach-call.c [2018-12-08 17:35:11,515 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/bin-2019/utaipan/data/57ffb1b52/0588046676b4496ab807ea56ad130366/FLAG3856a267f [2018-12-08 17:35:11,523 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/bin-2019/utaipan/data/57ffb1b52/0588046676b4496ab807ea56ad130366 [2018-12-08 17:35:11,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 17:35:11,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 17:35:11,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 17:35:11,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 17:35:11,529 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 17:35:11,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:35:11" (1/1) ... [2018-12-08 17:35:11,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4969d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11, skipping insertion in model container [2018-12-08 17:35:11,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:35:11" (1/1) ... [2018-12-08 17:35:11,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 17:35:11,558 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 17:35:11,732 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:35:11,734 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 17:35:11,822 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:35:11,831 INFO L195 MainTranslator]: Completed translation [2018-12-08 17:35:11,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11 WrapperNode [2018-12-08 17:35:11,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 17:35:11,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 17:35:11,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 17:35:11,832 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 17:35:11,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11" (1/1) ... [2018-12-08 17:35:11,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11" (1/1) ... [2018-12-08 17:35:11,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 17:35:11,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 17:35:11,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 17:35:11,851 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 17:35:11,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11" (1/1) ... [2018-12-08 17:35:11,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11" (1/1) ... [2018-12-08 17:35:11,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11" (1/1) ... [2018-12-08 17:35:11,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11" (1/1) ... [2018-12-08 17:35:11,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11" (1/1) ... [2018-12-08 17:35:11,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11" (1/1) ... [2018-12-08 17:35:11,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11" (1/1) ... [2018-12-08 17:35:11,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 17:35:11,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 17:35:11,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 17:35:11,889 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 17:35:11,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/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 [2018-12-08 17:35:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 17:35:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 17:35:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-08 17:35:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-08 17:35:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 17:35:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 17:35:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 17:35:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 17:35:12,481 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 17:35:12,482 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 17:35:12,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:35:12 BoogieIcfgContainer [2018-12-08 17:35:12,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 17:35:12,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 17:35:12,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 17:35:12,484 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 17:35:12,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 05:35:11" (1/3) ... [2018-12-08 17:35:12,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c26911d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:35:12, skipping insertion in model container [2018-12-08 17:35:12,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:35:11" (2/3) ... [2018-12-08 17:35:12,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c26911d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:35:12, skipping insertion in model container [2018-12-08 17:35:12,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:35:12" (3/3) ... [2018-12-08 17:35:12,486 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label49_true-unreach-call.c [2018-12-08 17:35:12,493 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 17:35:12,498 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 17:35:12,508 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 17:35:12,528 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 17:35:12,528 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 17:35:12,528 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 17:35:12,528 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 17:35:12,528 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 17:35:12,528 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 17:35:12,528 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 17:35:12,529 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 17:35:12,543 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-12-08 17:35:12,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-08 17:35:12,547 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:35:12,547 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] [2018-12-08 17:35:12,549 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:35:12,552 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:12,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1605828193, now seen corresponding path program 1 times [2018-12-08 17:35:12,553 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:35:12,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:12,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:12,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:12,582 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:35:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:12,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:35:12,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:35:12,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 17:35:12,706 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:35:12,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 17:35:12,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 17:35:12,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 17:35:12,719 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2018-12-08 17:35:13,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:35:13,161 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2018-12-08 17:35:13,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 17:35:13,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-12-08 17:35:13,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:35:13,170 INFO L225 Difference]: With dead ends: 571 [2018-12-08 17:35:13,170 INFO L226 Difference]: Without dead ends: 294 [2018-12-08 17:35:13,173 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 [2018-12-08 17:35:13,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2018-12-08 17:35:13,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2018-12-08 17:35:13,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2018-12-08 17:35:13,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2018-12-08 17:35:13,211 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 28 [2018-12-08 17:35:13,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:35:13,211 INFO L480 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2018-12-08 17:35:13,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 17:35:13,211 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2018-12-08 17:35:13,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-12-08 17:35:13,214 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:35:13,215 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:35:13,215 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:35:13,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:13,215 INFO L82 PathProgramCache]: Analyzing trace with hash -351220503, now seen corresponding path program 1 times [2018-12-08 17:35:13,215 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:35:13,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:13,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:13,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:13,217 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:35:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:13,326 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:35:13,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:35:13,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 17:35:13,327 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:35:13,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:35:13,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:35:13,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:35:13,328 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 6 states. [2018-12-08 17:35:13,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:35:13,798 INFO L93 Difference]: Finished difference Result 741 states and 1136 transitions. [2018-12-08 17:35:13,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 17:35:13,799 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-12-08 17:35:13,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:35:13,801 INFO L225 Difference]: With dead ends: 741 [2018-12-08 17:35:13,801 INFO L226 Difference]: Without dead ends: 453 [2018-12-08 17:35:13,803 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 [2018-12-08 17:35:13,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2018-12-08 17:35:13,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 445. [2018-12-08 17:35:13,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2018-12-08 17:35:13,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 626 transitions. [2018-12-08 17:35:13,817 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 626 transitions. Word has length 101 [2018-12-08 17:35:13,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:35:13,817 INFO L480 AbstractCegarLoop]: Abstraction has 445 states and 626 transitions. [2018-12-08 17:35:13,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:35:13,817 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 626 transitions. [2018-12-08 17:35:13,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-12-08 17:35:13,818 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:35:13,819 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:35:13,819 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:35:13,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:13,819 INFO L82 PathProgramCache]: Analyzing trace with hash 788107453, now seen corresponding path program 1 times [2018-12-08 17:35:13,819 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:35:13,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:13,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:13,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:13,820 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:35:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:13,890 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:35:13,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:35:13,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 17:35:13,891 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:35:13,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 17:35:13,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 17:35:13,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 17:35:13,892 INFO L87 Difference]: Start difference. First operand 445 states and 626 transitions. Second operand 4 states. [2018-12-08 17:35:14,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:35:14,373 INFO L93 Difference]: Finished difference Result 1611 states and 2315 transitions. [2018-12-08 17:35:14,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 17:35:14,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2018-12-08 17:35:14,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:35:14,376 INFO L225 Difference]: With dead ends: 1611 [2018-12-08 17:35:14,377 INFO L226 Difference]: Without dead ends: 1172 [2018-12-08 17:35:14,377 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 17:35:14,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2018-12-08 17:35:14,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1172. [2018-12-08 17:35:14,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2018-12-08 17:35:14,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1554 transitions. [2018-12-08 17:35:14,400 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1554 transitions. Word has length 107 [2018-12-08 17:35:14,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:35:14,400 INFO L480 AbstractCegarLoop]: Abstraction has 1172 states and 1554 transitions. [2018-12-08 17:35:14,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 17:35:14,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1554 transitions. [2018-12-08 17:35:14,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-12-08 17:35:14,403 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:35:14,403 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:35:14,403 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:35:14,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:14,403 INFO L82 PathProgramCache]: Analyzing trace with hash 58557854, now seen corresponding path program 1 times [2018-12-08 17:35:14,403 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:35:14,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:14,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:14,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:14,404 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:35:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:14,494 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:35:14,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:35:14,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 17:35:14,494 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:35:14,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:35:14,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:35:14,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:35:14,495 INFO L87 Difference]: Start difference. First operand 1172 states and 1554 transitions. Second operand 6 states. [2018-12-08 17:35:14,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:35:14,985 INFO L93 Difference]: Finished difference Result 2372 states and 3192 transitions. [2018-12-08 17:35:14,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 17:35:14,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2018-12-08 17:35:14,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:35:14,991 INFO L225 Difference]: With dead ends: 2372 [2018-12-08 17:35:14,991 INFO L226 Difference]: Without dead ends: 1206 [2018-12-08 17:35:15,001 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 [2018-12-08 17:35:15,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2018-12-08 17:35:15,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1051. [2018-12-08 17:35:15,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2018-12-08 17:35:15,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1334 transitions. [2018-12-08 17:35:15,018 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1334 transitions. Word has length 164 [2018-12-08 17:35:15,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:35:15,018 INFO L480 AbstractCegarLoop]: Abstraction has 1051 states and 1334 transitions. [2018-12-08 17:35:15,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:35:15,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1334 transitions. [2018-12-08 17:35:15,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-12-08 17:35:15,020 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:35:15,020 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:35:15,020 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:35:15,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:15,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1560592178, now seen corresponding path program 1 times [2018-12-08 17:35:15,021 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:35:15,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:15,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:15,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:15,022 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:35:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:35:15,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:35:15,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 17:35:15,131 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:35:15,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:35:15,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:35:15,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:35:15,132 INFO L87 Difference]: Start difference. First operand 1051 states and 1334 transitions. Second operand 6 states. [2018-12-08 17:35:15,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:35:15,586 INFO L93 Difference]: Finished difference Result 2400 states and 3096 transitions. [2018-12-08 17:35:15,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 17:35:15,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2018-12-08 17:35:15,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:35:15,591 INFO L225 Difference]: With dead ends: 2400 [2018-12-08 17:35:15,591 INFO L226 Difference]: Without dead ends: 1355 [2018-12-08 17:35:15,593 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 [2018-12-08 17:35:15,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2018-12-08 17:35:15,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1200. [2018-12-08 17:35:15,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1200 states. [2018-12-08 17:35:15,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1479 transitions. [2018-12-08 17:35:15,625 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1479 transitions. Word has length 170 [2018-12-08 17:35:15,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:35:15,625 INFO L480 AbstractCegarLoop]: Abstraction has 1200 states and 1479 transitions. [2018-12-08 17:35:15,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:35:15,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1479 transitions. [2018-12-08 17:35:15,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-12-08 17:35:15,629 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:35:15,629 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:35:15,630 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:35:15,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:15,630 INFO L82 PathProgramCache]: Analyzing trace with hash -226216260, now seen corresponding path program 1 times [2018-12-08 17:35:15,630 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:35:15,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:15,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:15,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:15,631 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:35:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 43 proven. 5 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-12-08 17:35:15,760 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:35:15,761 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 17:35:15,761 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 244 with the following transitions: [2018-12-08 17:35:15,763 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-08 17:35:15,789 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 17:35:15,789 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 17:35:16,153 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 17:35:16,154 INFO L272 AbstractInterpreter]: Visited 145 different actions 287 times. Merged at 6 different actions 8 times. Never widened. Performed 3109 root evaluator evaluations with a maximum evaluation depth of 8. Performed 3109 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 2 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-08 17:35:16,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:16,160 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 17:35:16,160 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:35:16,160 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/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 [2018-12-08 17:35:16,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:16,166 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 17:35:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:16,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:35:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:35:16,319 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 17:35:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:35:16,426 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 17:35:16,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-12-08 17:35:16,426 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 17:35:16,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 17:35:16,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 17:35:16,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-08 17:35:16,427 INFO L87 Difference]: Start difference. First operand 1200 states and 1479 transitions. Second operand 11 states. [2018-12-08 17:35:17,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:35:17,889 INFO L93 Difference]: Finished difference Result 3856 states and 4798 transitions. [2018-12-08 17:35:17,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-08 17:35:17,889 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 243 [2018-12-08 17:35:17,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:35:17,894 INFO L225 Difference]: With dead ends: 3856 [2018-12-08 17:35:17,894 INFO L226 Difference]: Without dead ends: 1629 [2018-12-08 17:35:17,898 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 490 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2018-12-08 17:35:17,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2018-12-08 17:35:17,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1190. [2018-12-08 17:35:17,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1190 states. [2018-12-08 17:35:17,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1345 transitions. [2018-12-08 17:35:17,928 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1345 transitions. Word has length 243 [2018-12-08 17:35:17,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:35:17,928 INFO L480 AbstractCegarLoop]: Abstraction has 1190 states and 1345 transitions. [2018-12-08 17:35:17,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 17:35:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1345 transitions. [2018-12-08 17:35:17,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-12-08 17:35:17,931 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:35:17,931 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-08 17:35:17,931 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:35:17,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:17,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1054824384, now seen corresponding path program 1 times [2018-12-08 17:35:17,932 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:35:17,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:17,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:17,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:17,932 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:35:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:18,321 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 120 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:35:18,321 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:35:18,321 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 17:35:18,322 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 258 with the following transitions: [2018-12-08 17:35:18,322 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [786], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-08 17:35:18,325 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 17:35:18,325 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 17:35:18,407 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 17:35:18,407 INFO L272 AbstractInterpreter]: Visited 147 different actions 147 times. Never merged. Never widened. Performed 1461 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1461 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2018-12-08 17:35:18,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:18,414 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 17:35:18,684 INFO L227 lantSequenceWeakener]: Weakened 248 states. On average, predicates are now at 72.84% of their original sizes. [2018-12-08 17:35:18,684 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 17:35:18,707 INFO L418 sIntCurrentIteration]: We unified 256 AI predicates to 256 [2018-12-08 17:35:18,707 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 17:35:18,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 17:35:18,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2018-12-08 17:35:18,708 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:35:18,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:35:18,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:35:18,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:35:18,708 INFO L87 Difference]: Start difference. First operand 1190 states and 1345 transitions. Second operand 6 states. [2018-12-08 17:35:21,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:35:21,314 INFO L93 Difference]: Finished difference Result 2232 states and 2518 transitions. [2018-12-08 17:35:21,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 17:35:21,314 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 257 [2018-12-08 17:35:21,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:35:21,317 INFO L225 Difference]: With dead ends: 2232 [2018-12-08 17:35:21,318 INFO L226 Difference]: Without dead ends: 1191 [2018-12-08 17:35:21,319 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 257 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-08 17:35:21,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2018-12-08 17:35:21,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1190. [2018-12-08 17:35:21,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1190 states. [2018-12-08 17:35:21,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1325 transitions. [2018-12-08 17:35:21,340 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1325 transitions. Word has length 257 [2018-12-08 17:35:21,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:35:21,340 INFO L480 AbstractCegarLoop]: Abstraction has 1190 states and 1325 transitions. [2018-12-08 17:35:21,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:35:21,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1325 transitions. [2018-12-08 17:35:21,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-12-08 17:35:21,343 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:35:21,344 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-08 17:35:21,344 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:35:21,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:21,344 INFO L82 PathProgramCache]: Analyzing trace with hash -2088165964, now seen corresponding path program 1 times [2018-12-08 17:35:21,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:35:21,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:21,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:21,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:21,345 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:35:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-12-08 17:35:21,545 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:35:21,545 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 17:35:21,545 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-12-08 17:35:21,546 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-08 17:35:21,549 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 17:35:21,549 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 17:35:21,720 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 17:35:21,720 INFO L272 AbstractInterpreter]: Visited 145 different actions 425 times. Merged at 6 different actions 12 times. Never widened. Performed 4668 root evaluator evaluations with a maximum evaluation depth of 13. Performed 4668 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-08 17:35:21,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:21,727 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 17:35:21,727 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:35:21,727 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/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 [2018-12-08 17:35:21,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:21,735 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 17:35:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:21,783 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:35:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-12-08 17:35:21,823 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 17:35:21,898 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-12-08 17:35:21,913 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-08 17:35:21,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 11 [2018-12-08 17:35:21,913 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:35:21,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 17:35:21,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 17:35:21,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-08 17:35:21,913 INFO L87 Difference]: Start difference. First operand 1190 states and 1325 transitions. Second operand 3 states. [2018-12-08 17:35:22,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:35:22,171 INFO L93 Difference]: Finished difference Result 2807 states and 3129 transitions. [2018-12-08 17:35:22,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 17:35:22,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2018-12-08 17:35:22,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:35:22,175 INFO L225 Difference]: With dead ends: 2807 [2018-12-08 17:35:22,175 INFO L226 Difference]: Without dead ends: 1621 [2018-12-08 17:35:22,176 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 559 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-08 17:35:22,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2018-12-08 17:35:22,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1478. [2018-12-08 17:35:22,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1478 states. [2018-12-08 17:35:22,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 1627 transitions. [2018-12-08 17:35:22,193 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 1627 transitions. Word has length 279 [2018-12-08 17:35:22,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:35:22,193 INFO L480 AbstractCegarLoop]: Abstraction has 1478 states and 1627 transitions. [2018-12-08 17:35:22,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 17:35:22,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 1627 transitions. [2018-12-08 17:35:22,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-12-08 17:35:22,196 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:35:22,197 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:35:22,197 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:35:22,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:22,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1534802932, now seen corresponding path program 1 times [2018-12-08 17:35:22,197 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:35:22,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:22,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:22,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:22,198 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:35:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:22,408 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 140 proven. 138 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 17:35:22,408 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:35:22,408 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 17:35:22,409 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 289 with the following transitions: [2018-12-08 17:35:22,409 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-08 17:35:22,411 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 17:35:22,411 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 17:35:22,555 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 17:35:22,555 INFO L272 AbstractInterpreter]: Visited 125 different actions 369 times. Merged at 7 different actions 16 times. Never widened. Performed 3867 root evaluator evaluations with a maximum evaluation depth of 15. Performed 3867 inverse root evaluator evaluations with a maximum inverse evaluation depth of 15. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-08 17:35:22,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:22,556 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 17:35:22,556 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:35:22,557 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/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 [2018-12-08 17:35:22,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:22,583 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 17:35:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:22,628 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:35:22,700 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 209 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-12-08 17:35:22,701 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 17:35:22,956 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 209 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-12-08 17:35:22,972 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 17:35:22,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2018-12-08 17:35:22,972 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 17:35:22,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-08 17:35:22,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-08 17:35:22,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2018-12-08 17:35:22,973 INFO L87 Difference]: Start difference. First operand 1478 states and 1627 transitions. Second operand 16 states. [2018-12-08 17:35:26,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:35:26,270 INFO L93 Difference]: Finished difference Result 4371 states and 5166 transitions. [2018-12-08 17:35:26,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-12-08 17:35:26,270 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 288 [2018-12-08 17:35:26,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:35:26,275 INFO L225 Difference]: With dead ends: 4371 [2018-12-08 17:35:26,275 INFO L226 Difference]: Without dead ends: 2897 [2018-12-08 17:35:26,277 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 602 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1165 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=709, Invalid=3323, Unknown=0, NotChecked=0, Total=4032 [2018-12-08 17:35:26,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2018-12-08 17:35:26,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2680. [2018-12-08 17:35:26,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2680 states. [2018-12-08 17:35:26,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 2958 transitions. [2018-12-08 17:35:26,314 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 2958 transitions. Word has length 288 [2018-12-08 17:35:26,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:35:26,315 INFO L480 AbstractCegarLoop]: Abstraction has 2680 states and 2958 transitions. [2018-12-08 17:35:26,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-08 17:35:26,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 2958 transitions. [2018-12-08 17:35:26,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-12-08 17:35:26,317 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:35:26,318 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:35:26,318 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:35:26,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:26,318 INFO L82 PathProgramCache]: Analyzing trace with hash -420751923, now seen corresponding path program 1 times [2018-12-08 17:35:26,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:35:26,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:26,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:26,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:35:26,319 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:35:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:26,512 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 215 proven. 75 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 17:35:26,512 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:35:26,512 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 17:35:26,512 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 302 with the following transitions: [2018-12-08 17:35:26,512 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [558], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-08 17:35:26,514 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 17:35:26,514 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 17:35:26,686 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 17:35:26,686 INFO L272 AbstractInterpreter]: Visited 125 different actions 370 times. Merged at 7 different actions 17 times. Never widened. Performed 3890 root evaluator evaluations with a maximum evaluation depth of 18. Performed 3890 inverse root evaluator evaluations with a maximum inverse evaluation depth of 18. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-08 17:35:26,690 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:35:26,690 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 17:35:26,690 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:35:26,690 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/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 [2018-12-08 17:35:26,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:35:26,696 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 17:35:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:35:26,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:35:26,991 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2018-12-08 17:35:26,991 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 17:35:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2018-12-08 17:35:27,088 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-08 17:35:27,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [12] total 14 [2018-12-08 17:35:27,088 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:35:27,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 17:35:27,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 17:35:27,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-12-08 17:35:27,089 INFO L87 Difference]: Start difference. First operand 2680 states and 2958 transitions. Second operand 3 states. [2018-12-08 17:35:30,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:35:30,448 INFO L93 Difference]: Finished difference Result 5646 states and 6309 transitions. [2018-12-08 17:35:30,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 17:35:30,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2018-12-08 17:35:30,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:35:30,449 INFO L225 Difference]: With dead ends: 5646 [2018-12-08 17:35:30,449 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 17:35:30,456 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 600 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-12-08 17:35:30,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 17:35:30,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 17:35:30,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 17:35:30,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 17:35:30,457 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 301 [2018-12-08 17:35:30,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:35:30,457 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 17:35:30,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 17:35:30,457 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 17:35:30,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 17:35:30,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 17:35:30,533 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 17:35:30,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 17:35:30,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 17:35:30,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 17:35:30,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 17:35:30,627 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 17:35:31,553 WARN L180 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 72 [2018-12-08 17:35:32,088 WARN L180 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 66 [2018-12-08 17:35:32,685 WARN L180 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 66 [2018-12-08 17:35:32,686 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 17:35:32,686 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a19~0)| ~a19~0) (= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|)) [2018-12-08 17:35:32,686 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 17:35:32,686 INFO L448 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-12-08 17:35:32,687 INFO L448 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-12-08 17:35:32,688 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,689 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-08 17:35:32,690 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-12-08 17:35:32,691 INFO L448 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse2 (= 10 |old(~a19~0)|)) (.cse6 (= 2 |old(~a10~0)|)) (.cse13 (= |old(~a19~0)| ~a19~0)) (.cse14 (= |old(~a10~0)| ~a10~0)) (.cse8 (= ~a1~0 |old(~a1~0)|)) (.cse3 (= 1 |old(~a10~0)|))) (let ((.cse4 (not .cse3)) (.cse10 (= 8 |old(~a19~0)|)) (.cse12 (forall ((v_prenex_8 Int)) (let ((.cse16 (* 9 v_prenex_8))) (let ((.cse15 (div .cse16 10))) (or (< .cse15 0) (< .cse16 0) (< (+ (mod .cse15 25) 12) |old(~a1~0)|)))))) (.cse0 (= 4 |old(~a10~0)|)) (.cse1 (and .cse13 .cse14 .cse8)) (.cse11 (= 0 |old(~a10~0)|)) (.cse9 (or .cse2 .cse6 .cse3)) (.cse7 (< 8 |old(~a19~0)|)) (.cse5 (and .cse13 .cse14))) (and (or (< |old(~a10~0)| 1) .cse0 .cse1 (< |old(~a1~0)| 219) .cse2 .cse3) (or .cse4 .cse5) (or .cse1 (not (= 9 |old(~a19~0)|)) .cse6) (or .cse0 (< 0 (+ |old(~a1~0)| 437977)) .cse7 (<= (+ ~a1~0 437977) 0) .cse3) (or (and .cse5 .cse8) (or .cse9 .cse10) .cse11) (or .cse4 .cse1 .cse10) (or .cse12 (or .cse2 .cse10) .cse1) (or .cse12 (or .cse0 .cse6 .cse10) .cse1) (or .cse7 .cse5 .cse10) (or .cse12 .cse0 .cse7 .cse1 .cse11 .cse3) (or .cse9 .cse7 .cse5)))) [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-12-08 17:35:32,692 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-12-08 17:35:32,693 INFO L448 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,694 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 17:35:32,695 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 9) (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14)) [2018-12-08 17:35:32,696 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 17:35:32,696 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 17:35:32,696 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 14 ~a4~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (and (= |old(~a19~0)| ~a19~0) (= ~a1~0 23) (= |old(~a10~0)| ~a10~0)) (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|))) [2018-12-08 17:35:32,696 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-12-08 17:35:32,696 INFO L444 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (not (= ~a19~0 10))) (.cse1 (exists ((v_prenex_8 Int)) (let ((.cse4 (* 9 v_prenex_8))) (let ((.cse3 (div .cse4 10))) (and (<= ~a1~0 (+ (mod .cse3 25) 12)) (<= 0 .cse4) (<= 0 .cse3)))))) (.cse2 (not (= 2 ~a10~0)))) (or (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (not (= 0 |old(~a10~0)|)) (and (< 218 ~a1~0) .cse0 (<= 1 ~a10~0)) (and .cse0 .cse1) (= 1 ~a10~0) (not (= 9 |old(~a19~0)|)) (and (= 8 ~a19~0) .cse2) (not (= 14 ~a4~0)) (and (and .cse0 .cse2) (not (= ~a10~0 0))) (and (<= ~a19~0 8) (not (= ~a19~0 8))) (and (= |old(~a19~0)| ~a19~0) .cse2) (and .cse1 (and (not (= ~a10~0 4)) .cse2)))) [2018-12-08 17:35:32,696 INFO L448 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-12-08 17:35:32,696 INFO L448 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-12-08 17:35:32,696 INFO L444 ceAbstractionStarter]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (not (= ~a19~0 10))) (.cse1 (exists ((v_prenex_8 Int)) (let ((.cse4 (* 9 v_prenex_8))) (let ((.cse3 (div .cse4 10))) (and (<= ~a1~0 (+ (mod .cse3 25) 12)) (<= 0 .cse4) (<= 0 .cse3)))))) (.cse2 (not (= 2 ~a10~0)))) (or (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (not (= 0 |old(~a10~0)|)) (and (< 218 ~a1~0) .cse0 (<= 1 ~a10~0)) (and .cse0 .cse1) (= 1 ~a10~0) (not (= 9 |old(~a19~0)|)) (and (= 8 ~a19~0) .cse2) (not (= 14 ~a4~0)) (and (and .cse0 .cse2) (not (= ~a10~0 0))) (and (<= ~a19~0 8) (not (= ~a19~0 8))) (and (= |old(~a19~0)| ~a19~0) .cse2) (and .cse1 (and (not (= ~a10~0 4)) .cse2)))) [2018-12-08 17:35:32,696 INFO L448 ceAbstractionStarter]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2018-12-08 17:35:32,700 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,702 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,702 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,702 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,706 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,706 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,706 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,707 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,707 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,707 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:35:32 BoogieIcfgContainer [2018-12-08 17:35:32,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:35:32,709 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:35:32,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:35:32,710 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:35:32,710 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:35:12" (3/4) ... [2018-12-08 17:35:32,713 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 17:35:32,717 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 17:35:32,717 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-08 17:35:32,718 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 17:35:32,726 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-08 17:35:32,726 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 17:35:32,751 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(23 == \old(a1)) || !(0 == a12)) || !(0 == \old(a10))) || ((218 < a1 && !(a19 == 10)) && 1 <= a10)) || (!(a19 == 10) && (\exists v_prenex_8 : int :: (a1 <= 9 * v_prenex_8 / 10 % 25 + 12 && 0 <= 9 * v_prenex_8) && 0 <= 9 * v_prenex_8 / 10))) || 1 == a10) || !(9 == \old(a19))) || (8 == a19 && !(2 == a10))) || !(14 == a4)) || ((!(a19 == 10) && !(2 == a10)) && !(a10 == 0))) || (a19 <= 8 && !(a19 == 8))) || (\old(a19) == a19 && !(2 == a10))) || ((\exists v_prenex_8 : int :: (a1 <= 9 * v_prenex_8 / 10 % 25 + 12 && 0 <= 9 * v_prenex_8) && 0 <= 9 * v_prenex_8 / 10) && !(a10 == 4) && !(2 == a10)) [2018-12-08 17:35:32,810 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7579e0d3-844d-4fce-a206-1cb1e7d5415d/bin-2019/utaipan/witness.graphml [2018-12-08 17:35:32,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:35:32,811 INFO L168 Benchmark]: Toolchain (without parser) took 21285.41 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.2 GB). Free memory was 957.1 MB in the beginning and 1.8 GB in the end (delta: -876.3 MB). Peak memory consumption was 290.8 MB. Max. memory is 11.5 GB. [2018-12-08 17:35:32,811 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:35:32,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -109.2 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. [2018-12-08 17:35:32,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:35:32,812 INFO L168 Benchmark]: Boogie Preprocessor took 38.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-12-08 17:35:32,812 INFO L168 Benchmark]: RCFGBuilder took 592.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 953.8 MB in the end (delta: 105.3 MB). Peak memory consumption was 105.3 MB. Max. memory is 11.5 GB. [2018-12-08 17:35:32,812 INFO L168 Benchmark]: TraceAbstraction took 20226.65 ms. Allocated memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: 1.1 GB). Free memory was 953.8 MB in the beginning and 1.9 GB in the end (delta: -907.2 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-12-08 17:35:32,812 INFO L168 Benchmark]: Witness Printer took 101.08 ms. Allocated memory is still 2.2 GB. Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-12-08 17:35:32,813 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -109.2 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 592.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 953.8 MB in the end (delta: 105.3 MB). Peak memory consumption was 105.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 20226.65 ms. Allocated memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: 1.1 GB). Free memory was 953.8 MB in the beginning and 1.9 GB in the end (delta: -907.2 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. * Witness Printer took 101.08 ms. Allocated memory is still 2.2 GB. Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 70]: 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: 582]: Loop Invariant [2018-12-08 17:35:32,816 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,816 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,816 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,816 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,816 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,816 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,816 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,817 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,817 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,817 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,817 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-12-08 17:35:32,817 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] Derived loop invariant: (((((((((((!(23 == \old(a1)) || !(0 == a12)) || !(0 == \old(a10))) || ((218 < a1 && !(a19 == 10)) && 1 <= a10)) || (!(a19 == 10) && (\exists v_prenex_8 : int :: (a1 <= 9 * v_prenex_8 / 10 % 25 + 12 && 0 <= 9 * v_prenex_8) && 0 <= 9 * v_prenex_8 / 10))) || 1 == a10) || !(9 == \old(a19))) || (8 == a19 && !(2 == a10))) || !(14 == a4)) || ((!(a19 == 10) && !(2 == a10)) && !(a10 == 0))) || (a19 <= 8 && !(a19 == 8))) || (\old(a19) == a19 && !(2 == a10))) || ((\exists v_prenex_8 : int :: (a1 <= 9 * v_prenex_8 / 10 % 25 + 12 && 0 <= 9 * v_prenex_8) && 0 <= 9 * v_prenex_8 / 10) && !(a10 == 4) && !(2 == a10)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. SAFE Result, 20.1s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 13.4s AutomataDifference, 0.0s DeadEndRemovalTime, 2.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 567 SDtfs, 6161 SDslu, 554 SDs, 0 SdLazy, 11717 SolverSat, 2117 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 2666 GetRequests, 2514 SyntacticMatches, 17 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1359 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2680occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.9s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9978008319805197 AbsIntWeakeningRatio, 0.1015625 AbsIntAvgWeakeningVarsNumRemoved, 15.421875 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 1118 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 115 PreInvPairs, 193 NumberOfFragments, 646 HoareAnnotationTreeSize, 115 FomulaSimplifications, 8603 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8371 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 3049 NumberOfCodeBlocks, 3049 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4142 ConstructedInterpolants, 24 QuantifiedInterpolants, 5308571 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1885 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 18 InterpolantComputations, 9 PerfectInterpolantSequences, 2492/2769 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...