./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91fda61e05234dbe68b069d372f5d4b0bb73b229 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 03:41:36,992 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:41:36,993 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:41:37,001 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:41:37,002 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:41:37,002 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:41:37,003 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:41:37,004 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:41:37,005 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:41:37,006 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:41:37,006 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:41:37,007 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:41:37,007 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:41:37,008 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:41:37,009 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:41:37,009 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:41:37,010 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:41:37,011 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:41:37,013 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:41:37,014 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:41:37,014 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:41:37,015 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:41:37,017 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:41:37,017 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:41:37,017 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:41:37,018 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:41:37,019 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:41:37,019 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:41:37,020 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:41:37,021 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:41:37,021 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:41:37,021 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:41:37,022 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:41:37,022 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:41:37,022 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:41:37,023 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:41:37,023 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 03:41:37,033 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:41:37,034 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:41:37,034 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:41:37,034 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:41:37,035 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:41:37,035 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:41:37,035 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 03:41:37,035 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:41:37,035 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:41:37,035 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:41:37,036 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:41:37,036 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:41:37,036 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:41:37,036 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:41:37,036 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:41:37,036 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:41:37,036 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:41:37,036 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:41:37,036 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:41:37,037 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:41:37,037 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:41:37,037 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:41:37,037 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:41:37,037 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:41:37,037 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:41:37,037 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:41:37,037 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:41:37,038 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 03:41:37,038 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:41:37,038 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:41:37,038 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer 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 -> Automizer 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 -> 91fda61e05234dbe68b069d372f5d4b0bb73b229 [2018-11-23 03:41:37,060 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:41:37,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:41:37,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:41:37,071 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:41:37,072 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:41:37,072 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer/../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b_true-unreach-call_false-termination.cil.c [2018-11-23 03:41:37,109 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer/data/928146aa5/b4c7340bb7324ae68d33c401fe33b819/FLAG851f297e4 [2018-11-23 03:41:37,462 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:41:37,462 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/sv-benchmarks/c/ssh-simplified/s3_srvr_1b_true-unreach-call_false-termination.cil.c [2018-11-23 03:41:37,467 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer/data/928146aa5/b4c7340bb7324ae68d33c401fe33b819/FLAG851f297e4 [2018-11-23 03:41:37,875 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer/data/928146aa5/b4c7340bb7324ae68d33c401fe33b819 [2018-11-23 03:41:37,877 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:41:37,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:41:37,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:41:37,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:41:37,882 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:41:37,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:37" (1/1) ... [2018-11-23 03:41:37,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230ceac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:37, skipping insertion in model container [2018-11-23 03:41:37,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:37" (1/1) ... [2018-11-23 03:41:37,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:41:37,911 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:41:38,028 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:41:38,031 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:41:38,045 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:41:38,054 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:41:38,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:38 WrapperNode [2018-11-23 03:41:38,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:41:38,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:41:38,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:41:38,055 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:41:38,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:38" (1/1) ... [2018-11-23 03:41:38,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:38" (1/1) ... [2018-11-23 03:41:38,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:41:38,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:41:38,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:41:38,071 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:41:38,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:38" (1/1) ... [2018-11-23 03:41:38,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:38" (1/1) ... [2018-11-23 03:41:38,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:38" (1/1) ... [2018-11-23 03:41:38,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:38" (1/1) ... [2018-11-23 03:41:38,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:38" (1/1) ... [2018-11-23 03:41:38,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:38" (1/1) ... [2018-11-23 03:41:38,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:38" (1/1) ... [2018-11-23 03:41:38,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:41:38,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:41:38,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:41:38,086 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:41:38,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:41:38,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 03:41:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 03:41:38,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:41:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:41:38,162 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 03:41:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 03:41:38,288 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:41:38,288 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 03:41:38,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:38 BoogieIcfgContainer [2018-11-23 03:41:38,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:41:38,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:41:38,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:41:38,291 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:41:38,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:41:37" (1/3) ... [2018-11-23 03:41:38,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c380d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:41:38, skipping insertion in model container [2018-11-23 03:41:38,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:38" (2/3) ... [2018-11-23 03:41:38,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c380d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:41:38, skipping insertion in model container [2018-11-23 03:41:38,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:38" (3/3) ... [2018-11-23 03:41:38,293 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1b_true-unreach-call_false-termination.cil.c [2018-11-23 03:41:38,300 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:41:38,305 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 03:41:38,316 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 03:41:38,342 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:41:38,343 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:41:38,343 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:41:38,343 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:41:38,343 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:41:38,343 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:41:38,343 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:41:38,343 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:41:38,344 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:41:38,356 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-23 03:41:38,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 03:41:38,359 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:41:38,360 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:41:38,361 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:41:38,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:41:38,365 INFO L82 PathProgramCache]: Analyzing trace with hash -2134687016, now seen corresponding path program 1 times [2018-11-23 03:41:38,366 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:41:38,366 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:41:38,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:41:38,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:41:38,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:41:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:38,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:41:38,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:41:38,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:41:38,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:41:38,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:41:38,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:41:38,483 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2018-11-23 03:41:38,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:41:38,546 INFO L93 Difference]: Finished difference Result 70 states and 116 transitions. [2018-11-23 03:41:38,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:41:38,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 03:41:38,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:41:38,555 INFO L225 Difference]: With dead ends: 70 [2018-11-23 03:41:38,555 INFO L226 Difference]: Without dead ends: 39 [2018-11-23 03:41:38,558 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:41:38,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-23 03:41:38,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-23 03:41:38,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-23 03:41:38,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2018-11-23 03:41:38,588 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 8 [2018-11-23 03:41:38,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:41:38,588 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2018-11-23 03:41:38,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:41:38,589 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2018-11-23 03:41:38,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 03:41:38,589 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:41:38,589 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:41:38,590 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:41:38,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:41:38,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1966827798, now seen corresponding path program 1 times [2018-11-23 03:41:38,590 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:41:38,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:41:38,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:41:38,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:41:38,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:41:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:41:38,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:41:38,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:41:38,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:41:38,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:41:38,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:41:38,625 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2018-11-23 03:41:38,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:41:38,683 INFO L93 Difference]: Finished difference Result 87 states and 125 transitions. [2018-11-23 03:41:38,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:41:38,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-23 03:41:38,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:41:38,684 INFO L225 Difference]: With dead ends: 87 [2018-11-23 03:41:38,684 INFO L226 Difference]: Without dead ends: 53 [2018-11-23 03:41:38,685 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:41:38,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-23 03:41:38,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2018-11-23 03:41:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-23 03:41:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 65 transitions. [2018-11-23 03:41:38,689 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 65 transitions. Word has length 13 [2018-11-23 03:41:38,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:41:38,690 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 65 transitions. [2018-11-23 03:41:38,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:41:38,690 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2018-11-23 03:41:38,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 03:41:38,690 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:41:38,690 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:41:38,690 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:41:38,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:41:38,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1966887380, now seen corresponding path program 1 times [2018-11-23 03:41:38,691 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:41:38,691 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:41:38,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:41:38,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:41:38,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:41:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:41:38,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:41:38,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:41:38,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:41:38,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:41:38,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:41:38,715 INFO L87 Difference]: Start difference. First operand 49 states and 65 transitions. Second operand 3 states. [2018-11-23 03:41:38,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:41:38,781 INFO L93 Difference]: Finished difference Result 93 states and 130 transitions. [2018-11-23 03:41:38,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:41:38,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-23 03:41:38,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:41:38,782 INFO L225 Difference]: With dead ends: 93 [2018-11-23 03:41:38,782 INFO L226 Difference]: Without dead ends: 70 [2018-11-23 03:41:38,783 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:41:38,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-23 03:41:38,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-11-23 03:41:38,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-11-23 03:41:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 93 transitions. [2018-11-23 03:41:38,791 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 93 transitions. Word has length 13 [2018-11-23 03:41:38,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:41:38,791 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 93 transitions. [2018-11-23 03:41:38,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:41:38,791 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 93 transitions. [2018-11-23 03:41:38,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 03:41:38,792 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:41:38,792 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:41:38,792 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:41:38,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:41:38,792 INFO L82 PathProgramCache]: Analyzing trace with hash 280007728, now seen corresponding path program 1 times [2018-11-23 03:41:38,792 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:41:38,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:41:38,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:41:38,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:41:38,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:41:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:38,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 03:41:38,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:41:38,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:41:38,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:41:38,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:41:38,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:41:38,821 INFO L87 Difference]: Start difference. First operand 70 states and 93 transitions. Second operand 3 states. [2018-11-23 03:41:38,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:41:38,866 INFO L93 Difference]: Finished difference Result 137 states and 187 transitions. [2018-11-23 03:41:38,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:41:38,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-23 03:41:38,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:41:38,868 INFO L225 Difference]: With dead ends: 137 [2018-11-23 03:41:38,868 INFO L226 Difference]: Without dead ends: 93 [2018-11-23 03:41:38,869 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:41:38,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-11-23 03:41:38,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2018-11-23 03:41:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-11-23 03:41:38,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 123 transitions. [2018-11-23 03:41:38,878 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 123 transitions. Word has length 20 [2018-11-23 03:41:38,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:41:38,878 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 123 transitions. [2018-11-23 03:41:38,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:41:38,879 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 123 transitions. [2018-11-23 03:41:38,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 03:41:38,879 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:41:38,879 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:41:38,880 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:41:38,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:41:38,880 INFO L82 PathProgramCache]: Analyzing trace with hash 885328029, now seen corresponding path program 1 times [2018-11-23 03:41:38,880 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:41:38,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:41:38,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:41:38,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:41:38,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:41:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:38,898 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 03:41:38,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:41:38,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:41:38,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:41:38,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:41:38,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:41:38,899 INFO L87 Difference]: Start difference. First operand 91 states and 123 transitions. Second operand 3 states. [2018-11-23 03:41:38,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:41:38,929 INFO L93 Difference]: Finished difference Result 181 states and 245 transitions. [2018-11-23 03:41:38,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:41:38,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-11-23 03:41:38,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:41:38,930 INFO L225 Difference]: With dead ends: 181 [2018-11-23 03:41:38,930 INFO L226 Difference]: Without dead ends: 76 [2018-11-23 03:41:38,931 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:41:38,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-23 03:41:38,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2018-11-23 03:41:38,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-23 03:41:38,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2018-11-23 03:41:38,936 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 23 [2018-11-23 03:41:38,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:41:38,937 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2018-11-23 03:41:38,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:41:38,937 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2018-11-23 03:41:38,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 03:41:38,938 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:41:38,938 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:41:38,939 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:41:38,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:41:38,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1155086362, now seen corresponding path program 1 times [2018-11-23 03:41:38,939 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:41:38,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:41:38,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:41:38,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:41:38,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:41:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:41:38,963 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 03:41:38,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:41:38,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:41:38,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:41:38,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:41:38,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:41:38,964 INFO L87 Difference]: Start difference. First operand 74 states and 90 transitions. Second operand 3 states. [2018-11-23 03:41:38,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:41:38,974 INFO L93 Difference]: Finished difference Result 124 states and 147 transitions. [2018-11-23 03:41:38,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:41:38,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-11-23 03:41:38,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:41:38,975 INFO L225 Difference]: With dead ends: 124 [2018-11-23 03:41:38,975 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 03:41:38,976 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:41:38,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 03:41:38,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 03:41:38,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 03:41:38,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 03:41:38,977 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2018-11-23 03:41:38,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:41:38,978 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 03:41:38,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:41:38,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 03:41:38,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 03:41:38,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 03:41:39,104 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 03:41:39,105 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:41:39,105 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:41:39,105 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 03:41:39,105 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 03:41:39,105 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 03:41:39,105 INFO L444 ceAbstractionStarter]: At program point L97(lines 9 141) the Hoare annotation is: false [2018-11-23 03:41:39,105 INFO L444 ceAbstractionStarter]: At program point L31(lines 30 125) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-11-23 03:41:39,105 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 54 107) no Hoare annotation was computed. [2018-11-23 03:41:39,105 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 141) no Hoare annotation was computed. [2018-11-23 03:41:39,105 INFO L448 ceAbstractionStarter]: For program point L89-1(lines 54 107) no Hoare annotation was computed. [2018-11-23 03:41:39,105 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-23 03:41:39,106 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 54 107) no Hoare annotation was computed. [2018-11-23 03:41:39,106 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 74) no Hoare annotation was computed. [2018-11-23 03:41:39,106 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 128) no Hoare annotation was computed. [2018-11-23 03:41:39,106 INFO L448 ceAbstractionStarter]: For program point L58-1(lines 54 107) no Hoare annotation was computed. [2018-11-23 03:41:39,106 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 109) no Hoare annotation was computed. [2018-11-23 03:41:39,106 INFO L448 ceAbstractionStarter]: For program point L46(lines 46 111) no Hoare annotation was computed. [2018-11-23 03:41:39,106 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 9 141) no Hoare annotation was computed. [2018-11-23 03:41:39,106 INFO L451 ceAbstractionStarter]: At program point L137(lines 9 141) the Hoare annotation is: true [2018-11-23 03:41:39,107 INFO L444 ceAbstractionStarter]: At program point L100(lines 18 135) the Hoare annotation is: (or (and (<= 8640 main_~s__state~0) (<= main_~blastFlag~0 3) (not (= 0 main_~s__hit~0))) (<= main_~blastFlag~0 2)) [2018-11-23 03:41:39,107 INFO L448 ceAbstractionStarter]: For program point L96(lines 96 98) no Hoare annotation was computed. [2018-11-23 03:41:39,107 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 125) no Hoare annotation was computed. [2018-11-23 03:41:39,107 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 9 141) the Hoare annotation is: true [2018-11-23 03:41:39,107 INFO L444 ceAbstractionStarter]: At program point L26(lines 25 128) the Hoare annotation is: (<= main_~blastFlag~0 2) [2018-11-23 03:41:39,107 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2018-11-23 03:41:39,108 INFO L444 ceAbstractionStarter]: At program point L51(lines 50 109) the Hoare annotation is: (let ((.cse0 (<= 8656 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= 0 main_~s__hit~0))))) [2018-11-23 03:41:39,108 INFO L444 ceAbstractionStarter]: At program point L47(lines 46 111) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 3) (not (= 0 main_~s__hit~0))) (and .cse0 (<= main_~blastFlag~0 2)))) [2018-11-23 03:41:39,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:41:39 BoogieIcfgContainer [2018-11-23 03:41:39,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 03:41:39,119 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:41:39,119 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:41:39,119 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:41:39,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:38" (3/4) ... [2018-11-23 03:41:39,122 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 03:41:39,126 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 03:41:39,126 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 03:41:39,129 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 03:41:39,130 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 03:41:39,130 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 03:41:39,167 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_72ce464a-682d-448d-984b-87964749987d/bin-2019/uautomizer/witness.graphml [2018-11-23 03:41:39,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:41:39,168 INFO L168 Benchmark]: Toolchain (without parser) took 1290.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 961.8 MB in the beginning and 1.0 GB in the end (delta: -58.9 MB). Peak memory consumption was 81.6 MB. Max. memory is 11.5 GB. [2018-11-23 03:41:39,170 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:41:39,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.55 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 945.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 03:41:39,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.47 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:41:39,171 INFO L168 Benchmark]: Boogie Preprocessor took 15.25 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:41:39,171 INFO L168 Benchmark]: RCFGBuilder took 202.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:41:39,171 INFO L168 Benchmark]: TraceAbstraction took 829.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.9 MB). Peak memory consumption was 93.9 MB. Max. memory is 11.5 GB. [2018-11-23 03:41:39,172 INFO L168 Benchmark]: Witness Printer took 49.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-23 03:41:39,173 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.55 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 945.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.47 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.25 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 202.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 829.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.9 MB). Peak memory consumption was 93.9 MB. Max. memory is 11.5 GB. * Witness Printer took 49.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 139]: 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: 9]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (8656 <= s__state && blastFlag <= 2) || ((8656 <= s__state && blastFlag <= 3) && !(0 == s__hit)) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || blastFlag <= 2 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || (8640 <= s__state && blastFlag <= 2) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: blastFlag <= 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 184 SDtfs, 92 SDslu, 109 SDs, 0 SdLazy, 95 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 34 NumberOfFragments, 65 HoareAnnotationTreeSize, 11 FomulaSimplifications, 175 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 4626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 42/42 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...