./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/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 7aa9ac80ed7bb9ce6b78459a496e265402ed9cc3 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/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 7aa9ac80ed7bb9ce6b78459a496e265402ed9cc3 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:16:29,969 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:16:29,970 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:16:29,977 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:16:29,978 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:16:29,978 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:16:29,979 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:16:29,980 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:16:29,981 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:16:29,982 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:16:29,982 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:16:29,982 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:16:29,983 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:16:29,983 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:16:29,984 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:16:29,985 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:16:29,985 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:16:29,986 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:16:29,988 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:16:29,989 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:16:29,989 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:16:29,990 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:16:29,992 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:16:29,992 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:16:29,992 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:16:29,993 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:16:29,994 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:16:29,994 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:16:29,995 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:16:29,995 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:16:29,996 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:16:29,996 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:16:29,996 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:16:29,996 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:16:29,997 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:16:29,998 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:16:29,998 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 06:16:30,005 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:16:30,005 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:16:30,006 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:16:30,006 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 06:16:30,006 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 06:16:30,007 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 06:16:30,007 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 06:16:30,007 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 06:16:30,007 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 06:16:30,007 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 06:16:30,007 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 06:16:30,008 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:16:30,008 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:16:30,008 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:16:30,008 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:16:30,008 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:16:30,009 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 06:16:30,009 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:16:30,009 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 06:16:30,009 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:16:30,009 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:16:30,009 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 06:16:30,009 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:16:30,009 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:16:30,010 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:16:30,010 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 06:16:30,010 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:16:30,010 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:16:30,010 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:16:30,010 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 06:16:30,010 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 06:16:30,011 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:16:30,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 06:16:30,011 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 06:16:30,011 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_d025aaac-a384-461d-9188-666c7e18803d/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 -> 7aa9ac80ed7bb9ce6b78459a496e265402ed9cc3 [2018-11-10 06:16:30,035 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:16:30,044 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:16:30,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:16:30,048 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:16:30,048 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:16:30,049 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c [2018-11-10 06:16:30,095 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/data/d20d5d73f/608f009fcf0648b198b5f380dec3aa1d/FLAGaac889940 [2018-11-10 06:16:30,400 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:16:30,400 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c [2018-11-10 06:16:30,405 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/data/d20d5d73f/608f009fcf0648b198b5f380dec3aa1d/FLAGaac889940 [2018-11-10 06:16:30,415 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/data/d20d5d73f/608f009fcf0648b198b5f380dec3aa1d [2018-11-10 06:16:30,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:16:30,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:16:30,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:16:30,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:16:30,421 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:16:30,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:30" (1/1) ... [2018-11-10 06:16:30,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1788b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30, skipping insertion in model container [2018-11-10 06:16:30,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:30" (1/1) ... [2018-11-10 06:16:30,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:16:30,444 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:16:30,551 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:16:30,553 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:16:30,567 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:16:30,581 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:16:30,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30 WrapperNode [2018-11-10 06:16:30,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:16:30,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:16:30,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:16:30,582 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:16:30,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30" (1/1) ... [2018-11-10 06:16:30,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30" (1/1) ... [2018-11-10 06:16:30,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:16:30,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:16:30,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:16:30,604 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:16:30,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30" (1/1) ... [2018-11-10 06:16:30,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30" (1/1) ... [2018-11-10 06:16:30,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30" (1/1) ... [2018-11-10 06:16:30,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30" (1/1) ... [2018-11-10 06:16:30,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30" (1/1) ... [2018-11-10 06:16:30,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30" (1/1) ... [2018-11-10 06:16:30,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30" (1/1) ... [2018-11-10 06:16:30,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:16:30,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:16:30,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:16:30,654 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:16:30,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:16:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 06:16:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 06:16:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2018-11-10 06:16:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2018-11-10 06:16:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-11-10 06:16:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-11-10 06:16:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 06:16:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 06:16:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 06:16:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 06:16:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:16:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:16:30,856 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:16:30,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:30 BoogieIcfgContainer [2018-11-10 06:16:30,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:16:30,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 06:16:30,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 06:16:30,859 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 06:16:30,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:16:30" (1/3) ... [2018-11-10 06:16:30,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d16fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:16:30, skipping insertion in model container [2018-11-10 06:16:30,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:30" (2/3) ... [2018-11-10 06:16:30,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d16fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:16:30, skipping insertion in model container [2018-11-10 06:16:30,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:30" (3/3) ... [2018-11-10 06:16:30,861 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1250_true-unreach-call.c [2018-11-10 06:16:30,868 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 06:16:30,872 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 06:16:30,884 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 06:16:30,909 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 06:16:30,909 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 06:16:30,909 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 06:16:30,910 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:16:30,910 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:16:30,910 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 06:16:30,910 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:16:30,910 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 06:16:30,920 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-11-10 06:16:30,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 06:16:30,925 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:30,925 INFO L375 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] [2018-11-10 06:16:30,927 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:30,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:30,930 INFO L82 PathProgramCache]: Analyzing trace with hash -688452071, now seen corresponding path program 1 times [2018-11-10 06:16:30,932 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:16:30,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:30,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:30,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:30,962 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:16:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:31,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:16:31,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:31,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 06:16:31,015 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:16:31,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 06:16:31,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 06:16:31,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:16:31,029 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-11-10 06:16:31,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:31,045 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2018-11-10 06:16:31,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 06:16:31,046 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2018-11-10 06:16:31,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:31,053 INFO L225 Difference]: With dead ends: 71 [2018-11-10 06:16:31,053 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 06:16:31,055 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:16:31,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 06:16:31,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 06:16:31,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 06:16:31,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2018-11-10 06:16:31,085 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2018-11-10 06:16:31,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:31,085 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2018-11-10 06:16:31,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 06:16:31,086 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2018-11-10 06:16:31,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 06:16:31,087 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:31,087 INFO L375 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] [2018-11-10 06:16:31,088 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:31,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:31,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1409132855, now seen corresponding path program 1 times [2018-11-10 06:16:31,088 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:16:31,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:31,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:31,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:31,089 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:16:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:31,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:16:31,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:31,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 06:16:31,156 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:16:31,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:16:31,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:16:31,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:31,158 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 4 states. [2018-11-10 06:16:31,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:31,195 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2018-11-10 06:16:31,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:16:31,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-11-10 06:16:31,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:31,198 INFO L225 Difference]: With dead ends: 51 [2018-11-10 06:16:31,198 INFO L226 Difference]: Without dead ends: 40 [2018-11-10 06:16:31,199 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:31,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-10 06:16:31,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-10 06:16:31,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-10 06:16:31,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-10 06:16:31,205 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2018-11-10 06:16:31,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:31,206 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-10 06:16:31,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:16:31,206 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2018-11-10 06:16:31,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 06:16:31,206 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:31,206 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:16:31,207 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:31,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:31,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1379485408, now seen corresponding path program 1 times [2018-11-10 06:16:31,207 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:16:31,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:31,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:31,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:31,208 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:16:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:31,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:16:31,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:31,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 06:16:31,271 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:16:31,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:16:31,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:16:31,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:31,272 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 4 states. [2018-11-10 06:16:31,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:31,299 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2018-11-10 06:16:31,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:16:31,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-10 06:16:31,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:31,300 INFO L225 Difference]: With dead ends: 55 [2018-11-10 06:16:31,300 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 06:16:31,300 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:31,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 06:16:31,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2018-11-10 06:16:31,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-10 06:16:31,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-10 06:16:31,304 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2018-11-10 06:16:31,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:31,304 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-10 06:16:31,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:16:31,304 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2018-11-10 06:16:31,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 06:16:31,305 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:31,305 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:16:31,305 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:31,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:31,305 INFO L82 PathProgramCache]: Analyzing trace with hash 128066401, now seen corresponding path program 1 times [2018-11-10 06:16:31,305 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:16:31,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:31,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:31,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:31,306 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:16:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:16:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:16:31,349 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 06:16:31,358 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,359 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,359 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,359 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,360 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,360 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,360 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,360 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,360 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,361 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,361 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,361 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,361 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,361 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,362 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,362 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,362 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,362 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,362 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,362 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,363 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,363 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,363 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,363 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,363 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,364 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,364 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:31,364 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:16:31,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:16:31 BoogieIcfgContainer [2018-11-10 06:16:31,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 06:16:31,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:16:31,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:16:31,378 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:16:31,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:30" (3/4) ... [2018-11-10 06:16:31,382 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 06:16:31,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:16:31,382 INFO L168 Benchmark]: Toolchain (without parser) took 964.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -104.0 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:31,383 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:16:31,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.17 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:31,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.46 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:31,385 INFO L168 Benchmark]: Boogie Preprocessor took 49.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:31,385 INFO L168 Benchmark]: RCFGBuilder took 202.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:31,386 INFO L168 Benchmark]: TraceAbstraction took 520.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:31,386 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:16:31,388 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.17 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.46 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 202.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 520.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 65]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryArithmeticFLOAToperation at line 60. Possible FailurePath: [L60] float x = 0.0f / 0.0f; [L61] float y = 0.0f / 0.0f; [L62] CALL, EXPR fmax_float(x, y) VAL [\old(x)=2139095045, \old(y)=2139095042] [L43] CALL, EXPR __fpclassify_float(x) [L20] __uint32_t w; [L23] CALL ieee_float_shape_type gf_u; [L23] RET ieee_float_shape_type gf_u; [L24] CALL gf_u.value = (x) [L24] RET gf_u.value = (x) [L25] CALL, EXPR gf_u.word [L25] RET, EXPR gf_u.word [L25] (w) = gf_u.word [L25] RET (w) = gf_u.word [L26] COND FALSE !(0) [L28] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L30-L31] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L33-L34] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L36] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L39] RET return 0; [L43] EXPR __fpclassify_float(x) VAL [\old(x)=2139095045, \old(y)=2139095042, __fpclassify_float(x)=0, x=2139095045, y=2139095042] [L43] COND TRUE __fpclassify_float(x) == 0 [L44] RET return y; VAL [\old(x)=2139095045, \old(y)=2139095042, \result=2139095042, x=2139095045, y=2139095042] [L62] EXPR fmax_float(x, y) VAL [fmax_float(x, y)=2139095042, x=2139095045, y=2139095042] [L62] float res = fmax_float(x, y); [L64] CALL, EXPR isnan_float(res) VAL [\old(x)=2139095042] [L54] RET return x != x; VAL [\old(x)=2139095042, \result=0, x=2139095042] [L64] EXPR isnan_float(res) VAL [isnan_float(res)=0, res=2139095042, x=2139095045, y=2139095042] [L64] COND TRUE !isnan_float(res) [L65] __VERIFIER_error() VAL [res=2139095042, x=2139095045, y=2139095042] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 134 SDtfs, 0 SDslu, 158 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 2582 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:16:32,808 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:16:32,809 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:16:32,818 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:16:32,818 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:16:32,819 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:16:32,820 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:16:32,821 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:16:32,822 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:16:32,822 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:16:32,823 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:16:32,823 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:16:32,824 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:16:32,825 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:16:32,825 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:16:32,826 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:16:32,826 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:16:32,827 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:16:32,829 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:16:32,830 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:16:32,830 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:16:32,831 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:16:32,833 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:16:32,833 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:16:32,833 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:16:32,834 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:16:32,834 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:16:32,835 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:16:32,835 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:16:32,836 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:16:32,836 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:16:32,837 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:16:32,837 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:16:32,837 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:16:32,838 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:16:32,838 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:16:32,838 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 06:16:32,848 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:16:32,848 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:16:32,849 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:16:32,849 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 06:16:32,849 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 06:16:32,849 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 06:16:32,850 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 06:16:32,850 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 06:16:32,850 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:16:32,850 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:16:32,850 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:16:32,851 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:16:32,851 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 06:16:32,851 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:16:32,851 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 06:16:32,851 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 06:16:32,851 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 06:16:32,851 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:16:32,851 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:16:32,852 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 06:16:32,852 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:16:32,852 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:16:32,852 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:16:32,852 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 06:16:32,852 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:16:32,852 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:16:32,853 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:16:32,853 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 06:16:32,853 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 06:16:32,853 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:16:32,853 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 06:16:32,853 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 06:16:32,853 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_d025aaac-a384-461d-9188-666c7e18803d/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 -> 7aa9ac80ed7bb9ce6b78459a496e265402ed9cc3 [2018-11-10 06:16:32,885 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:16:32,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:16:32,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:16:32,898 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:16:32,898 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:16:32,898 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c [2018-11-10 06:16:32,943 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/data/11741f92d/4232e21436854384875840bcb4fbea83/FLAG29aea22e0 [2018-11-10 06:16:33,249 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:16:33,249 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/sv-benchmarks/c/float-newlib/float_req_bl_1250_true-unreach-call.c [2018-11-10 06:16:33,254 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/data/11741f92d/4232e21436854384875840bcb4fbea83/FLAG29aea22e0 [2018-11-10 06:16:33,262 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/data/11741f92d/4232e21436854384875840bcb4fbea83 [2018-11-10 06:16:33,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:16:33,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:16:33,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:16:33,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:16:33,268 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:16:33,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:33" (1/1) ... [2018-11-10 06:16:33,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4580883d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33, skipping insertion in model container [2018-11-10 06:16:33,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:33" (1/1) ... [2018-11-10 06:16:33,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:16:33,291 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:16:33,401 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:16:33,404 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:16:33,420 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:16:33,438 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:16:33,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33 WrapperNode [2018-11-10 06:16:33,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:16:33,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:16:33,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:16:33,439 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:16:33,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33" (1/1) ... [2018-11-10 06:16:33,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33" (1/1) ... [2018-11-10 06:16:33,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:16:33,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:16:33,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:16:33,463 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:16:33,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33" (1/1) ... [2018-11-10 06:16:33,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33" (1/1) ... [2018-11-10 06:16:33,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33" (1/1) ... [2018-11-10 06:16:33,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33" (1/1) ... [2018-11-10 06:16:33,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33" (1/1) ... [2018-11-10 06:16:33,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33" (1/1) ... [2018-11-10 06:16:33,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33" (1/1) ... [2018-11-10 06:16:33,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:16:33,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:16:33,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:16:33,482 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:16:33,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:16:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 06:16:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 06:16:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2018-11-10 06:16:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2018-11-10 06:16:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-11-10 06:16:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-11-10 06:16:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 06:16:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 06:16:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 06:16:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 06:16:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:16:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:16:33,733 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:16:33,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:33 BoogieIcfgContainer [2018-11-10 06:16:33,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:16:33,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 06:16:33,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 06:16:33,735 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 06:16:33,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:16:33" (1/3) ... [2018-11-10 06:16:33,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afb4cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:16:33, skipping insertion in model container [2018-11-10 06:16:33,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:33" (2/3) ... [2018-11-10 06:16:33,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afb4cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:16:33, skipping insertion in model container [2018-11-10 06:16:33,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:33" (3/3) ... [2018-11-10 06:16:33,738 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1250_true-unreach-call.c [2018-11-10 06:16:33,743 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 06:16:33,748 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 06:16:33,757 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 06:16:33,778 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 06:16:33,778 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 06:16:33,778 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 06:16:33,778 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 06:16:33,778 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:16:33,778 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:16:33,778 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 06:16:33,778 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:16:33,779 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 06:16:33,791 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-10 06:16:33,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 06:16:33,794 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:33,795 INFO L375 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] [2018-11-10 06:16:33,796 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:33,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:33,800 INFO L82 PathProgramCache]: Analyzing trace with hash 454092354, now seen corresponding path program 1 times [2018-11-10 06:16:33,802 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:33,803 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:33,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:33,853 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:33,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:16:33,870 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:33,882 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:33,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 06:16:33,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 06:16:33,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 06:16:33,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:16:33,893 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-11-10 06:16:33,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:33,910 INFO L93 Difference]: Finished difference Result 65 states and 86 transitions. [2018-11-10 06:16:33,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 06:16:33,911 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-10 06:16:33,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:33,918 INFO L225 Difference]: With dead ends: 65 [2018-11-10 06:16:33,918 INFO L226 Difference]: Without dead ends: 33 [2018-11-10 06:16:33,921 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:16:33,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-10 06:16:33,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-10 06:16:33,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 06:16:33,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2018-11-10 06:16:33,945 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 24 [2018-11-10 06:16:33,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:33,945 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2018-11-10 06:16:33,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 06:16:33,945 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2018-11-10 06:16:33,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 06:16:33,947 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:33,947 INFO L375 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] [2018-11-10 06:16:33,947 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:33,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:33,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1280284357, now seen corresponding path program 1 times [2018-11-10 06:16:33,948 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:33,948 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:33,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:34,008 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:34,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:16:34,037 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:34,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:34,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 06:16:34,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:16:34,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:16:34,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:34,050 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 4 states. [2018-11-10 06:16:34,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:34,085 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-11-10 06:16:34,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:16:34,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-11-10 06:16:34,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:34,088 INFO L225 Difference]: With dead ends: 46 [2018-11-10 06:16:34,088 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 06:16:34,089 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:34,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 06:16:34,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 06:16:34,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 06:16:34,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-10 06:16:34,097 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 25 [2018-11-10 06:16:34,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:34,097 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-10 06:16:34,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:16:34,097 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-10 06:16:34,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 06:16:34,098 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:34,098 INFO L375 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] [2018-11-10 06:16:34,098 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:34,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:34,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1130727099, now seen corresponding path program 1 times [2018-11-10 06:16:34,099 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:34,099 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:34,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:34,141 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:34,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:16:34,158 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:34,172 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:34,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 06:16:34,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:16:34,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:16:34,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:34,173 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 4 states. [2018-11-10 06:16:34,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:34,212 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-10 06:16:34,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:16:34,213 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-11-10 06:16:34,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:34,213 INFO L225 Difference]: With dead ends: 49 [2018-11-10 06:16:34,213 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 06:16:34,214 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:34,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 06:16:34,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-10 06:16:34,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 06:16:34,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-10 06:16:34,219 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 26 [2018-11-10 06:16:34,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:34,219 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-10 06:16:34,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:16:34,219 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-10 06:16:34,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 06:16:34,220 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:34,220 INFO L375 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] [2018-11-10 06:16:34,220 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:34,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:34,221 INFO L82 PathProgramCache]: Analyzing trace with hash 263717065, now seen corresponding path program 1 times [2018-11-10 06:16:34,221 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:34,221 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:34,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:34,261 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:34,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:16:34,286 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:34,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:34,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 06:16:34,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:16:34,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:16:34,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:34,298 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 4 states. [2018-11-10 06:16:34,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:34,314 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-10 06:16:34,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:16:34,315 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-11-10 06:16:34,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:34,315 INFO L225 Difference]: With dead ends: 49 [2018-11-10 06:16:34,315 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 06:16:34,316 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:34,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 06:16:34,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-10 06:16:34,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 06:16:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-10 06:16:34,320 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 27 [2018-11-10 06:16:34,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:34,320 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-10 06:16:34,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:16:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-10 06:16:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 06:16:34,321 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:34,321 INFO L375 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] [2018-11-10 06:16:34,321 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:34,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:34,321 INFO L82 PathProgramCache]: Analyzing trace with hash -631798839, now seen corresponding path program 1 times [2018-11-10 06:16:34,322 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:34,322 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:34,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:34,357 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:34,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:16:34,367 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:34,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:34,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 06:16:34,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:16:34,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:16:34,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:34,374 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 4 states. [2018-11-10 06:16:34,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:34,390 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-10 06:16:34,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:16:34,391 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-11-10 06:16:34,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:34,392 INFO L225 Difference]: With dead ends: 49 [2018-11-10 06:16:34,392 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 06:16:34,392 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 06:16:34,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-10 06:16:34,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 06:16:34,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-10 06:16:34,395 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 28 [2018-11-10 06:16:34,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:34,396 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-10 06:16:34,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:16:34,396 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-10 06:16:34,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 06:16:34,396 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:34,396 INFO L375 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] [2018-11-10 06:16:34,397 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:34,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:34,397 INFO L82 PathProgramCache]: Analyzing trace with hash -925201846, now seen corresponding path program 1 times [2018-11-10 06:16:34,397 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:34,397 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:34,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:34,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:34,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:16:34,557 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:34,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:34,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 06:16:34,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 06:16:34,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 06:16:34,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 06:16:34,569 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 9 states. [2018-11-10 06:16:34,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:34,779 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-11-10 06:16:34,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 06:16:34,780 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-11-10 06:16:34,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:34,780 INFO L225 Difference]: With dead ends: 43 [2018-11-10 06:16:34,780 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 06:16:34,781 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 06:16:34,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 06:16:34,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2018-11-10 06:16:34,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 06:16:34,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2018-11-10 06:16:34,786 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 28 [2018-11-10 06:16:34,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:34,786 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2018-11-10 06:16:34,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 06:16:34,787 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2018-11-10 06:16:34,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 06:16:34,787 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:34,787 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-10 06:16:34,788 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:34,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:34,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1882790959, now seen corresponding path program 1 times [2018-11-10 06:16:34,788 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:34,788 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:34,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:34,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:34,852 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 06:16:34,853 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:34,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:34,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 06:16:34,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:16:34,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:16:34,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:34,861 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand 4 states. [2018-11-10 06:16:34,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:34,878 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2018-11-10 06:16:34,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:16:34,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-11-10 06:16:34,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:34,879 INFO L225 Difference]: With dead ends: 46 [2018-11-10 06:16:34,879 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 06:16:34,880 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:34,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 06:16:34,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 06:16:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 06:16:34,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2018-11-10 06:16:34,884 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 33 [2018-11-10 06:16:34,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:34,885 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2018-11-10 06:16:34,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:16:34,885 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2018-11-10 06:16:34,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 06:16:34,886 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:34,886 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:16:34,887 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:34,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:34,888 INFO L82 PathProgramCache]: Analyzing trace with hash 222262197, now seen corresponding path program 1 times [2018-11-10 06:16:34,888 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:34,888 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:34,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:34,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 06:16:34,954 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:34,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:34,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 06:16:34,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:16:34,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:16:34,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:34,962 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 4 states. [2018-11-10 06:16:34,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:34,978 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2018-11-10 06:16:34,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:16:34,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-11-10 06:16:34,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:34,979 INFO L225 Difference]: With dead ends: 49 [2018-11-10 06:16:34,979 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 06:16:34,979 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 06:16:34,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-10 06:16:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 06:16:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2018-11-10 06:16:34,984 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 34 [2018-11-10 06:16:34,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:34,984 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2018-11-10 06:16:34,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:16:34,984 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2018-11-10 06:16:34,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 06:16:34,985 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:34,985 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-10 06:16:34,985 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:34,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:34,986 INFO L82 PathProgramCache]: Analyzing trace with hash -598048468, now seen corresponding path program 1 times [2018-11-10 06:16:34,986 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:34,986 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:34,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:35,039 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:35,176 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 06:16:35,177 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:35,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:35,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 06:16:35,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 06:16:35,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 06:16:35,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-10 06:16:35,184 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 10 states. [2018-11-10 06:16:35,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:35,387 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2018-11-10 06:16:35,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 06:16:35,388 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2018-11-10 06:16:35,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:35,389 INFO L225 Difference]: With dead ends: 44 [2018-11-10 06:16:35,389 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 06:16:35,389 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-11-10 06:16:35,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 06:16:35,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 06:16:35,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 06:16:35,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-11-10 06:16:35,393 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 35 [2018-11-10 06:16:35,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:35,393 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-11-10 06:16:35,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 06:16:35,393 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-11-10 06:16:35,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 06:16:35,394 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:35,394 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-10 06:16:35,394 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:35,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:35,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1299113046, now seen corresponding path program 1 times [2018-11-10 06:16:35,395 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:35,395 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:35,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:35,440 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:35,504 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 06:16:35,504 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:35,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:35,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 06:16:35,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 06:16:35,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 06:16:35,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 06:16:35,512 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 5 states. [2018-11-10 06:16:35,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:35,614 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2018-11-10 06:16:35,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 06:16:35,615 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-10 06:16:35,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:35,615 INFO L225 Difference]: With dead ends: 46 [2018-11-10 06:16:35,616 INFO L226 Difference]: Without dead ends: 33 [2018-11-10 06:16:35,616 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 06:16:35,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-10 06:16:35,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-10 06:16:35,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 06:16:35,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-10 06:16:35,619 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 35 [2018-11-10 06:16:35,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:35,619 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-10 06:16:35,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 06:16:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-10 06:16:35,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 06:16:35,620 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:35,620 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:16:35,620 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:35,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:35,620 INFO L82 PathProgramCache]: Analyzing trace with hash -888133901, now seen corresponding path program 1 times [2018-11-10 06:16:35,620 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:35,621 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:35,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:35,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:35,695 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 06:16:35,695 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:35,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:35,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 06:16:35,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:16:35,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:16:35,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:35,703 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2018-11-10 06:16:35,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:35,712 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2018-11-10 06:16:35,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:16:35,713 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-11-10 06:16:35,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:35,713 INFO L225 Difference]: With dead ends: 46 [2018-11-10 06:16:35,713 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 06:16:35,714 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:35,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 06:16:35,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-10 06:16:35,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 06:16:35,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-10 06:16:35,717 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 35 [2018-11-10 06:16:35,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:35,717 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-10 06:16:35,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:16:35,717 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-10 06:16:35,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 06:16:35,718 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:35,718 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:16:35,718 INFO L424 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:35,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:35,719 INFO L82 PathProgramCache]: Analyzing trace with hash -2124286599, now seen corresponding path program 1 times [2018-11-10 06:16:35,719 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:35,719 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:35,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:35,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:35,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 06:16:35,783 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:35,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:35,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 06:16:35,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:16:35,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:16:35,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:35,795 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2018-11-10 06:16:35,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:35,807 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2018-11-10 06:16:35,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:16:35,808 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2018-11-10 06:16:35,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:35,808 INFO L225 Difference]: With dead ends: 46 [2018-11-10 06:16:35,808 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 06:16:35,809 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:16:35,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 06:16:35,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-10 06:16:35,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 06:16:35,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-10 06:16:35,817 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 36 [2018-11-10 06:16:35,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:35,817 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-10 06:16:35,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:16:35,817 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-10 06:16:35,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 06:16:35,818 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:35,818 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:16:35,818 INFO L424 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:35,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:35,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1877277690, now seen corresponding path program 1 times [2018-11-10 06:16:35,819 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:16:35,819 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2018-11-10 06:16:35,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:35,864 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:35,956 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 06:16:35,956 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:35,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:35,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 06:16:35,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 06:16:35,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 06:16:35,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 06:16:35,965 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 9 states. [2018-11-10 06:16:36,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:36,088 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2018-11-10 06:16:36,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 06:16:36,088 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-11-10 06:16:36,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:36,088 INFO L225 Difference]: With dead ends: 33 [2018-11-10 06:16:36,089 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 06:16:36,089 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 06:16:36,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 06:16:36,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 06:16:36,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 06:16:36,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 06:16:36,090 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-11-10 06:16:36,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:36,090 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:16:36,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 06:16:36,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 06:16:36,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 06:16:36,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 06:16:36,178 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 54) no Hoare annotation was computed. [2018-11-10 06:16:36,178 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 54) the Hoare annotation is: true [2018-11-10 06:16:36,178 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 54) no Hoare annotation was computed. [2018-11-10 06:16:36,178 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 06:16:36,178 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 06:16:36,179 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 06:16:36,179 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 06:16:36,179 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 06:16:36,179 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 06:16:36,179 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 06:16:36,179 INFO L425 ceAbstractionStarter]: For program point L65(line 65) no Hoare annotation was computed. [2018-11-10 06:16:36,179 INFO L421 ceAbstractionStarter]: At program point L64(line 64) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 main_~res~0) (= .cse0 main_~y~0))) [2018-11-10 06:16:36,179 INFO L425 ceAbstractionStarter]: For program point L64-1(lines 64 67) no Hoare annotation was computed. [2018-11-10 06:16:36,179 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 65) no Hoare annotation was computed. [2018-11-10 06:16:36,179 INFO L421 ceAbstractionStarter]: At program point L62(line 62) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= .cse0 main_~y~0))) [2018-11-10 06:16:36,180 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 56 70) the Hoare annotation is: true [2018-11-10 06:16:36,180 INFO L425 ceAbstractionStarter]: For program point L62-1(line 62) no Hoare annotation was computed. [2018-11-10 06:16:36,180 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 56 70) no Hoare annotation was computed. [2018-11-10 06:16:36,180 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 56 70) no Hoare annotation was computed. [2018-11-10 06:16:36,180 INFO L425 ceAbstractionStarter]: For program point fmax_floatEXIT(lines 42 51) no Hoare annotation was computed. [2018-11-10 06:16:36,180 INFO L428 ceAbstractionStarter]: At program point fmax_floatENTRY(lines 42 51) the Hoare annotation is: true [2018-11-10 06:16:36,180 INFO L425 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-11-10 06:16:36,180 INFO L425 ceAbstractionStarter]: For program point L50-2(line 50) no Hoare annotation was computed. [2018-11-10 06:16:36,180 INFO L421 ceAbstractionStarter]: At program point L47(line 47) the Hoare annotation is: (and (= |fmax_float_#in~y| fmax_float_~y) (= |fmax_float_#in~x| fmax_float_~x)) [2018-11-10 06:16:36,180 INFO L425 ceAbstractionStarter]: For program point L47-1(lines 47 49) no Hoare annotation was computed. [2018-11-10 06:16:36,181 INFO L421 ceAbstractionStarter]: At program point L43(line 43) the Hoare annotation is: (and (= |fmax_float_#in~y| fmax_float_~y) (= |fmax_float_#in~x| fmax_float_~x)) [2018-11-10 06:16:36,181 INFO L425 ceAbstractionStarter]: For program point L43-1(lines 43 45) no Hoare annotation was computed. [2018-11-10 06:16:36,181 INFO L425 ceAbstractionStarter]: For program point fmax_floatFINAL(lines 42 51) no Hoare annotation was computed. [2018-11-10 06:16:36,181 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 39) no Hoare annotation was computed. [2018-11-10 06:16:36,181 INFO L425 ceAbstractionStarter]: For program point __fpclassify_floatFINAL(lines 19 40) no Hoare annotation was computed. [2018-11-10 06:16:36,181 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 39) no Hoare annotation was computed. [2018-11-10 06:16:36,181 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 39) no Hoare annotation was computed. [2018-11-10 06:16:36,181 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-10 06:16:36,181 INFO L428 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: true [2018-11-10 06:16:36,181 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 19 40) no Hoare annotation was computed. [2018-11-10 06:16:36,181 INFO L428 ceAbstractionStarter]: At program point __fpclassify_floatENTRY(lines 19 40) the Hoare annotation is: true [2018-11-10 06:16:36,181 INFO L425 ceAbstractionStarter]: For program point __fpclassify_floatEXIT(lines 19 40) no Hoare annotation was computed. [2018-11-10 06:16:36,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:16:36 BoogieIcfgContainer [2018-11-10 06:16:36,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 06:16:36,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:16:36,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:16:36,188 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:16:36,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:33" (3/4) ... [2018-11-10 06:16:36,190 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 06:16:36,195 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-10 06:16:36,196 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 06:16:36,196 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 06:16:36,196 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fmax_float [2018-11-10 06:16:36,196 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __fpclassify_float [2018-11-10 06:16:36,199 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2018-11-10 06:16:36,200 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-10 06:16:36,200 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 06:16:36,234 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d025aaac-a384-461d-9188-666c7e18803d/bin-2019/utaipan/witness.graphml [2018-11-10 06:16:36,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:16:36,235 INFO L168 Benchmark]: Toolchain (without parser) took 2969.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 954.6 MB in the beginning and 806.4 MB in the end (delta: 148.2 MB). Peak memory consumption was 292.3 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:36,236 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:16:36,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.19 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:36,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.31 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:36,237 INFO L168 Benchmark]: Boogie Preprocessor took 18.76 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:16:36,237 INFO L168 Benchmark]: RCFGBuilder took 251.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -183.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:36,237 INFO L168 Benchmark]: TraceAbstraction took 2453.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 812.6 MB in the end (delta: 302.6 MB). Peak memory consumption was 302.6 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:36,238 INFO L168 Benchmark]: Witness Printer took 46.60 ms. Allocated memory is still 1.2 GB. Free memory was 812.6 MB in the beginning and 806.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:36,239 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.19 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.31 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.76 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 251.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -183.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2453.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 812.6 MB in the end (delta: 302.6 MB). Peak memory consumption was 302.6 MB. Max. memory is 11.5 GB. * Witness Printer took 46.60 ms. Allocated memory is still 1.2 GB. Free memory was 812.6 MB in the beginning and 806.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 65]: 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: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 13 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 498 SDtfs, 31 SDslu, 1315 SDs, 0 SdLazy, 221 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, 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, 13 MinimizatonAttempts, 19 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 28 PreInvPairs, 33 NumberOfFragments, 48 HoareAnnotationTreeSize, 28 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 389 ConstructedInterpolants, 3 QuantifiedInterpolants, 21567 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1357 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...