./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.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_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/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 7de8352890f1d55270cdee8daa00c3bfaf4226ea ................................................................................................................................................................................................................................................... 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_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/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 7de8352890f1d55270cdee8daa00c3bfaf4226ea .................................................................................................................................................................................................................................................................................................................................. 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 05:00:04,507 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:00:04,508 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:00:04,516 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:00:04,517 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:00:04,517 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:00:04,518 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:00:04,519 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:00:04,520 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:00:04,521 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:00:04,522 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:00:04,522 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:00:04,523 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:00:04,523 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:00:04,524 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:00:04,525 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:00:04,525 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:00:04,526 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:00:04,528 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:00:04,529 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:00:04,530 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:00:04,530 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:00:04,532 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:00:04,532 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:00:04,532 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:00:04,533 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:00:04,534 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:00:04,534 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:00:04,535 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:00:04,536 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:00:04,536 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:00:04,536 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:00:04,536 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:00:04,537 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:00:04,537 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:00:04,538 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:00:04,538 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 05:00:04,548 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:00:04,548 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:00:04,549 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:00:04,549 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:00:04,549 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:00:04,549 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:00:04,549 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 05:00:04,549 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:00:04,550 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 05:00:04,550 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 05:00:04,550 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:00:04,550 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:00:04,550 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:00:04,551 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:00:04,551 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:00:04,551 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:00:04,551 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:00:04,551 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:00:04,551 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:00:04,551 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:00:04,552 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:00:04,552 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:00:04,552 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:00:04,552 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:00:04,552 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:00:04,552 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:00:04,552 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:00:04,553 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:00:04,553 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:00:04,553 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:00:04,553 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 05:00:04,553 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:00:04,553 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:00:04,553 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 05:00:04,553 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_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2018-11-10 05:00:04,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:00:04,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:00:04,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:00:04,587 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:00:04,587 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:00:04,587 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-10 05:00:04,624 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/data/2fc24e69f/969ec488013b4d7a8a8b375125a1f5c3/FLAG2fa05e8d0 [2018-11-10 05:00:04,949 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:00:04,950 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-10 05:00:04,954 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/data/2fc24e69f/969ec488013b4d7a8a8b375125a1f5c3/FLAG2fa05e8d0 [2018-11-10 05:00:04,962 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/data/2fc24e69f/969ec488013b4d7a8a8b375125a1f5c3 [2018-11-10 05:00:04,964 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:00:04,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:00:04,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:00:04,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:00:04,968 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:00:04,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:00:04" (1/1) ... [2018-11-10 05:00:04,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54772422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:04, skipping insertion in model container [2018-11-10 05:00:04,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:00:04" (1/1) ... [2018-11-10 05:00:04,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:00:04,988 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:00:05,082 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:00:05,085 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:00:05,098 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:00:05,106 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:00:05,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:05 WrapperNode [2018-11-10 05:00:05,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:00:05,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:00:05,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:00:05,107 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:00:05,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:05" (1/1) ... [2018-11-10 05:00:05,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:05" (1/1) ... [2018-11-10 05:00:05,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:00:05,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:00:05,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:00:05,120 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:00:05,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:05" (1/1) ... [2018-11-10 05:00:05,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:05" (1/1) ... [2018-11-10 05:00:05,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:05" (1/1) ... [2018-11-10 05:00:05,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:05" (1/1) ... [2018-11-10 05:00:05,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:05" (1/1) ... [2018-11-10 05:00:05,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:05" (1/1) ... [2018-11-10 05:00:05,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:05" (1/1) ... [2018-11-10 05:00:05,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:00:05,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:00:05,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:00:05,131 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:00:05,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/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 05:00:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:00:05,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:00:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:00:05,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:00:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:00:05,215 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:00:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 05:00:05,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 05:00:05,309 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:00:05,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:00:05 BoogieIcfgContainer [2018-11-10 05:00:05,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:00:05,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:00:05,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:00:05,312 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:00:05,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:00:04" (1/3) ... [2018-11-10 05:00:05,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9fb92d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:00:05, skipping insertion in model container [2018-11-10 05:00:05,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:05" (2/3) ... [2018-11-10 05:00:05,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9fb92d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:00:05, skipping insertion in model container [2018-11-10 05:00:05,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:00:05" (3/3) ... [2018-11-10 05:00:05,314 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-11-10 05:00:05,321 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:00:05,327 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:00:05,341 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:00:05,369 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:00:05,369 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:00:05,369 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:00:05,369 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:00:05,369 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:00:05,370 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:00:05,370 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:00:05,370 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:00:05,384 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-10 05:00:05,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 05:00:05,389 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:00:05,389 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:00:05,391 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:00:05,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:00:05,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-10 05:00:05,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:00:05,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:00:05,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:00:05,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:00:05,430 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:00:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:00:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:00:05,467 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 05:00:05,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:00:05 BoogieIcfgContainer [2018-11-10 05:00:05,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:00:05,483 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:00:05,483 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:00:05,484 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:00:05,484 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:00:05" (3/4) ... [2018-11-10 05:00:05,488 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 05:00:05,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:00:05,488 INFO L168 Benchmark]: Toolchain (without parser) took 524.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 959.8 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:00:05,491 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:00:05,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.52 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:00:05,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.29 ms. Allocated memory is still 1.0 GB. Free memory is still 949.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:00:05,492 INFO L168 Benchmark]: Boogie Preprocessor took 11.08 ms. Allocated memory is still 1.0 GB. Free memory was 949.0 MB in the beginning and 946.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:00:05,493 INFO L168 Benchmark]: RCFGBuilder took 178.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -202.6 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:00:05,494 INFO L168 Benchmark]: TraceAbstraction took 173.07 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-10 05:00:05,494 INFO L168 Benchmark]: Witness Printer took 4.54 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 05:00:05,497 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.52 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.29 ms. Allocated memory is still 1.0 GB. Free memory is still 949.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.08 ms. Allocated memory is still 1.0 GB. Free memory was 949.0 MB in the beginning and 946.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 178.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -202.6 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 173.07 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.54 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.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x VAL [x=2] [L19] COND TRUE y >= 0 [L19] y = x / 10. VAL [x=2] [L22] CALL __VERIFIER_assert(y >= 0. && y <= 4.) VAL [\old(cond)=0] [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 05:00:06,963 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:00:06,964 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:00:06,972 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:00:06,972 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:00:06,973 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:00:06,974 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:00:06,975 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:00:06,976 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:00:06,976 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:00:06,977 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:00:06,978 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:00:06,978 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:00:06,979 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:00:06,980 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:00:06,980 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:00:06,981 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:00:06,983 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:00:06,984 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:00:06,985 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:00:06,986 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:00:06,987 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:00:06,988 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:00:06,988 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:00:06,988 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:00:06,990 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:00:06,990 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:00:06,991 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:00:06,991 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:00:06,992 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:00:06,992 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:00:06,993 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:00:06,993 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:00:06,994 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:00:06,994 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:00:06,995 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:00:06,995 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 05:00:07,005 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:00:07,005 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:00:07,006 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:00:07,006 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:00:07,006 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:00:07,007 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:00:07,007 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:00:07,007 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:00:07,007 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:00:07,007 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:00:07,007 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:00:07,008 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:00:07,008 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:00:07,008 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:00:07,008 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:00:07,008 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 05:00:07,008 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 05:00:07,008 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:00:07,008 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:00:07,008 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:00:07,009 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:00:07,009 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:00:07,009 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:00:07,010 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:00:07,010 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:00:07,011 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:00:07,011 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:00:07,011 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:00:07,011 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 05:00:07,011 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:00:07,011 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 05:00:07,011 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 05:00:07,011 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_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2018-11-10 05:00:07,040 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:00:07,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:00:07,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:00:07,054 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:00:07,054 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:00:07,054 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-10 05:00:07,100 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/data/bc1c147f2/744cffad1bd44a088d6332173c98bdd4/FLAG0842fca0a [2018-11-10 05:00:07,435 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:00:07,435 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-10 05:00:07,439 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/data/bc1c147f2/744cffad1bd44a088d6332173c98bdd4/FLAG0842fca0a [2018-11-10 05:00:07,447 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/data/bc1c147f2/744cffad1bd44a088d6332173c98bdd4 [2018-11-10 05:00:07,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:00:07,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:00:07,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:00:07,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:00:07,454 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:00:07,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:00:07" (1/1) ... [2018-11-10 05:00:07,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ff5fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07, skipping insertion in model container [2018-11-10 05:00:07,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:00:07" (1/1) ... [2018-11-10 05:00:07,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:00:07,478 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:00:07,582 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:00:07,586 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:00:07,599 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:00:07,611 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:00:07,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07 WrapperNode [2018-11-10 05:00:07,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:00:07,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:00:07,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:00:07,612 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:00:07,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07" (1/1) ... [2018-11-10 05:00:07,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07" (1/1) ... [2018-11-10 05:00:07,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:00:07,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:00:07,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:00:07,632 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:00:07,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07" (1/1) ... [2018-11-10 05:00:07,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07" (1/1) ... [2018-11-10 05:00:07,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07" (1/1) ... [2018-11-10 05:00:07,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07" (1/1) ... [2018-11-10 05:00:07,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07" (1/1) ... [2018-11-10 05:00:07,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07" (1/1) ... [2018-11-10 05:00:07,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07" (1/1) ... [2018-11-10 05:00:07,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:00:07,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:00:07,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:00:07,649 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:00:07,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/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 05:00:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:00:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:00:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:00:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:00:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:00:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:00:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 05:00:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 05:00:10,983 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:00:10,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:00:10 BoogieIcfgContainer [2018-11-10 05:00:10,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:00:10,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:00:10,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:00:10,986 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:00:10,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:00:07" (1/3) ... [2018-11-10 05:00:10,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2d2cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:00:10, skipping insertion in model container [2018-11-10 05:00:10,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:00:07" (2/3) ... [2018-11-10 05:00:10,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2d2cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:00:10, skipping insertion in model container [2018-11-10 05:00:10,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:00:10" (3/3) ... [2018-11-10 05:00:10,989 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-11-10 05:00:10,996 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:00:11,001 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:00:11,016 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:00:11,037 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:00:11,038 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:00:11,038 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:00:11,038 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:00:11,038 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:00:11,038 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:00:11,038 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:00:11,038 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:00:11,039 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:00:11,050 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-10 05:00:11,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 05:00:11,054 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:00:11,054 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:00:11,056 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:00:11,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:00:11,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-10 05:00:11,063 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:00:11,063 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/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 05:00:11,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:00:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:00:11,525 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:00:13,766 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) c_main_~y~0)))) is different from false [2018-11-10 05:00:15,944 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) c_main_~y~0)))) is different from true [2018-11-10 05:00:31,056 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and .cse0 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse2) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse2) ((_ to_fp 11 53) RNE 4.0))))))))) is different from false [2018-11-10 05:00:42,287 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse1) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse1) ((_ to_fp 11 53) RNE 4.0))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse2) (_ +zero 11 53))) (fp.leq main_~x~0 .cse2) (fp.geq main_~x~0 (_ +zero 11 53)))))))) is different from false [2018-11-10 05:00:53,532 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse0) ((_ to_fp 11 53) RNE 4.0)))))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) is different from false [2018-11-10 05:00:55,739 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse0) ((_ to_fp 11 53) RNE 4.0)))))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) is different from true [2018-11-10 05:00:55,743 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 05:00:55,743 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:00:55,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:00:55,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 05:00:55,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 05:00:55,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 05:00:55,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-11-10 05:00:55,772 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2018-11-10 05:01:00,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:01:00,322 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-10 05:01:00,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 05:01:00,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-11-10 05:01:00,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:01:00,370 INFO L225 Difference]: With dead ends: 30 [2018-11-10 05:01:00,370 INFO L226 Difference]: Without dead ends: 11 [2018-11-10 05:01:00,372 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-11-10 05:01:00,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-10 05:01:00,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-10 05:01:00,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-10 05:01:00,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2018-11-10 05:01:00,402 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2018-11-10 05:01:00,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:01:00,403 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2018-11-10 05:01:00,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 05:01:00,403 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-11-10 05:01:00,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 05:01:00,404 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:01:00,404 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:01:00,404 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:01:00,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:01:00,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1734924095, now seen corresponding path program 1 times [2018-11-10 05:01:00,405 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:01:00,406 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/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 05:01:00,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:01:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:01:00,870 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:01:02,916 WARN L832 $PredicateComparison]: unable to prove that (and (fp.leq c_main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (= (fp.sub RNE (fp.mul RNE c_main_~x~0 c_main_~x~0) c_main_~x~0) c_main_~y~0) (fp.geq c_main_~x~0 (_ +zero 11 53))) is different from false [2018-11-10 05:01:04,967 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE main_~x~0 main_~x~0))) (and (= (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse0 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32))))))) is different from false [2018-11-10 05:01:07,009 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE main_~x~0 main_~x~0))) (and (= (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse0 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32))))))) is different from true [2018-11-10 05:01:23,469 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and .cse0 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse1 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53))))))) (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul RNE main_~x~0 main_~x~0))) (let ((.cse2 (fp.add RNE .cse3 ((_ to_fp 11 53) RNE 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) RNE 4.0)) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq .cse2 (_ +zero 11 53)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse3 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32))))))))) (and (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul RNE v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.leq (fp.add RNE .cse4 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (not (fp.geq (fp.sub RNE .cse4 v_prenex_3) ((_ to_fp 11 53) RNE (_ bv0 32))))))) .cse0))) is different from false [2018-11-10 05:01:37,901 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.leq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (not (fp.geq (fp.sub RNE .cse1 v_prenex_3) ((_ to_fp 11 53) RNE (_ bv0 32)))))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul RNE main_~x~0 main_~x~0))) (let ((.cse2 (fp.add RNE .cse3 ((_ to_fp 11 53) RNE 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) RNE 4.0)) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq .cse2 (_ +zero 11 53)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse3 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32)))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse4 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.add RNE .cse4 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53))))))))) is different from false [2018-11-10 05:01:48,210 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.leq (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (not (fp.geq (fp.sub RNE .cse0 v_prenex_3) ((_ to_fp 11 53) RNE (_ bv0 32))))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse1 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53))))))) is different from false [2018-11-10 05:01:50,254 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.leq (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (not (fp.geq (fp.sub RNE .cse0 v_prenex_3) ((_ to_fp 11 53) RNE (_ bv0 32))))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse1 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53))))))) is different from true [2018-11-10 05:01:50,256 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 05:01:50,256 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:01:50,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:01:50,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 05:01:50,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 05:01:50,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 05:01:50,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2018-11-10 05:01:50,270 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 7 states. [2018-11-10 05:01:50,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:01:50,273 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-11-10 05:01:50,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 05:01:50,273 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-11-10 05:01:50,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:01:50,273 INFO L225 Difference]: With dead ends: 11 [2018-11-10 05:01:50,274 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 05:01:50,274 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2018-11-10 05:01:50,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 05:01:50,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 05:01:50,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 05:01:50,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 05:01:50,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-10 05:01:50,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:01:50,276 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:01:50,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 05:01:50,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 05:01:50,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 05:01:50,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 05:02:02,950 WARN L179 SmtUtils]: Spent 12.63 s on a formula simplification that was a NOOP. DAG size: 25 [2018-11-10 05:02:05,108 WARN L179 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 101 DAG size of output: 1 [2018-11-10 05:02:05,110 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 05:02:05,110 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:02:05,110 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:02:05,110 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 05:02:05,110 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:02:05,110 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:02:05,111 INFO L421 ceAbstractionStarter]: At program point L19-2(lines 19 20) the Hoare annotation is: (or (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) main_~y~0)))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE main_~x~0 main_~x~0))) (and (= (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse1 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32)))))))) [2018-11-10 05:02:05,111 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 24) the Hoare annotation is: true [2018-11-10 05:02:05,111 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 24) no Hoare annotation was computed. [2018-11-10 05:02:05,111 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 24) no Hoare annotation was computed. [2018-11-10 05:02:05,111 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-10 05:02:05,111 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-11-10 05:02:05,112 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 9) the Hoare annotation is: true [2018-11-10 05:02:05,112 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 9) no Hoare annotation was computed. [2018-11-10 05:02:05,112 INFO L425 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-11-10 05:02:05,112 INFO L425 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-11-10 05:02:05,112 INFO L425 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2018-11-10 05:02:05,112 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-11-10 05:02:05,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:02:05 BoogieIcfgContainer [2018-11-10 05:02:05,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:02:05,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:02:05,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:02:05,116 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:02:05,116 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:00:10" (3/4) ... [2018-11-10 05:02:05,119 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 05:02:05,125 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 05:02:05,125 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 05:02:05,125 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 05:02:05,129 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 05:02:05,129 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 05:02:05,129 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 05:02:05,159 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0c0cb06f-64b8-4cc9-9d9e-fe7eb264cba3/bin-2019/utaipan/witness.graphml [2018-11-10 05:02:05,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:02:05,159 INFO L168 Benchmark]: Toolchain (without parser) took 117709.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -105.9 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. [2018-11-10 05:02:05,160 INFO L168 Benchmark]: CDTParser took 0.17 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 05:02:05,160 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.34 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:02:05,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.29 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:02:05,161 INFO L168 Benchmark]: Boogie Preprocessor took 16.71 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:02:05,161 INFO L168 Benchmark]: RCFGBuilder took 3335.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:02:05,161 INFO L168 Benchmark]: TraceAbstraction took 114130.92 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: 51.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:02:05,162 INFO L168 Benchmark]: Witness Printer took 43.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:02:05,164 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 161.34 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 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 19.29 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.71 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3335.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 114130.92 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: 51.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 11.5 GB. * Witness Printer took 43.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 114.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 4.6s AutomataDifference, 0.0s DeadEndRemovalTime, 14.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 0 SDslu, 56 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 57 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 381 FormulaSimplificationTreeSizeReductionInter, 14.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 93.6s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 8 QuantifiedInterpolants, 5112 SizeOfPredicates, 6 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...