./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93969ab48cbc6136b5ad0701aa11c46dc35b2390 ..................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93969ab48cbc6136b5ad0701aa11c46dc35b2390 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:57:19,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:19,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:19,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:19,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:19,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:19,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:19,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:19,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:19,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:19,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:19,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:19,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:19,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:19,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:19,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:19,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:19,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:19,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:19,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:19,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:19,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:19,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:19,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:19,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:19,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:19,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:19,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:19,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:19,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:19,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:19,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:19,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:19,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:19,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:19,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:19,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:19,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:19,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:19,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:19,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:19,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:57:19,497 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:19,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:19,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:19,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:19,508 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:19,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:19,509 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:57:19,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:57:19,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:57:19,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:19,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:57:19,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:57:19,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:57:19,510 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:57:19,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:19,511 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:19,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:57:19,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:19,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:19,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:57:19,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:57:19,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:57:19,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:19,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:57:19,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:57:19,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:57:19,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:57:19,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:57:19,514 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93969ab48cbc6136b5ad0701aa11c46dc35b2390 [2019-11-25 08:57:19,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:19,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:19,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:19,697 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:19,698 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:19,699 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2019-11-25 08:57:19,756 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/data/e419ebeb0/5fd1e4689eaa420c8c71d232fb35d90c/FLAG7ac10b228 [2019-11-25 08:57:20,167 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:20,167 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2019-11-25 08:57:20,174 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/data/e419ebeb0/5fd1e4689eaa420c8c71d232fb35d90c/FLAG7ac10b228 [2019-11-25 08:57:20,556 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/data/e419ebeb0/5fd1e4689eaa420c8c71d232fb35d90c [2019-11-25 08:57:20,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:20,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:20,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:20,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:20,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:20,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:20" (1/1) ... [2019-11-25 08:57:20,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2b1b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20, skipping insertion in model container [2019-11-25 08:57:20,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:20" (1/1) ... [2019-11-25 08:57:20,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:20,596 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:20,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:20,879 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:20,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:20,925 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:20,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20 WrapperNode [2019-11-25 08:57:20,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:20,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:20,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:20,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:20,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20" (1/1) ... [2019-11-25 08:57:20,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20" (1/1) ... [2019-11-25 08:57:20,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:20,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:20,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:20,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:20,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20" (1/1) ... [2019-11-25 08:57:20,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20" (1/1) ... [2019-11-25 08:57:20,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20" (1/1) ... [2019-11-25 08:57:20,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20" (1/1) ... [2019-11-25 08:57:20,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20" (1/1) ... [2019-11-25 08:57:20,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20" (1/1) ... [2019-11-25 08:57:20,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20" (1/1) ... [2019-11-25 08:57:20,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:20,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:20,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:20,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:20,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:57:21,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-25 08:57:21,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:57:21,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-25 08:57:21,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:21,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:21,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:57:21,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:57:21,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:57:21,491 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:21,491 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-25 08:57:21,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:21 BoogieIcfgContainer [2019-11-25 08:57:21,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:21,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:57:21,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:57:21,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:57:21,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:57:20" (1/3) ... [2019-11-25 08:57:21,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592bcbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:57:21, skipping insertion in model container [2019-11-25 08:57:21,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:20" (2/3) ... [2019-11-25 08:57:21,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592bcbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:57:21, skipping insertion in model container [2019-11-25 08:57:21,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:21" (3/3) ... [2019-11-25 08:57:21,500 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c.c [2019-11-25 08:57:21,506 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:57:21,511 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:57:21,521 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:57:21,542 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:57:21,543 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:57:21,543 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:57:21,543 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:21,543 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:21,543 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:57:21,543 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:21,543 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:57:21,557 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-25 08:57:21,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:57:21,562 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:21,563 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:21,563 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:21,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:21,567 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2019-11-25 08:57:21,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:21,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520116093] [2019-11-25 08:57:21,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:21,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:21,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520116093] [2019-11-25 08:57:21,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:21,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:57:21,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618771926] [2019-11-25 08:57:21,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:57:21,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:21,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:57:21,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:57:21,686 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-25 08:57:21,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:21,701 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2019-11-25 08:57:21,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:57:21,703 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-25 08:57:21,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:21,712 INFO L225 Difference]: With dead ends: 58 [2019-11-25 08:57:21,712 INFO L226 Difference]: Without dead ends: 27 [2019-11-25 08:57:21,715 INFO L630 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 [2019-11-25 08:57:21,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-25 08:57:21,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-25 08:57:21,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-25 08:57:21,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-11-25 08:57:21,745 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2019-11-25 08:57:21,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:21,745 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-25 08:57:21,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:57:21,745 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-11-25 08:57:21,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:57:21,746 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:21,746 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:21,746 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:21,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:21,747 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2019-11-25 08:57:21,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:21,747 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308853996] [2019-11-25 08:57:21,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:21,857 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:21,858 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:57:21,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:57:21 BoogieIcfgContainer [2019-11-25 08:57:21,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:57:21,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:57:21,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:57:21,887 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:57:21,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:21" (3/4) ... [2019-11-25 08:57:21,891 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:57:21,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:57:21,893 INFO L168 Benchmark]: Toolchain (without parser) took 1333.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -136.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:21,894 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:21,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:21,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.13 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. [2019-11-25 08:57:21,896 INFO L168 Benchmark]: Boogie Preprocessor took 28.07 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:21,896 INFO L168 Benchmark]: RCFGBuilder took 498.39 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: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:21,897 INFO L168 Benchmark]: TraceAbstraction took 392.96 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:21,897 INFO L168 Benchmark]: Witness Printer took 4.55 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. [2019-11-25 08:57:21,900 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 363.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.13 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. * Boogie Preprocessor took 28.07 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 498.39 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: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 392.96 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.55 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: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of someUnaryFLOAToperation at line 75, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L75] float x = -0.0f; [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] return x; VAL [huge_floor=1000000000000000000000000000000] [L76] float res = floor_float(x); [L79] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_floor=1000000000000000000000000000000] [L79] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L80] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-6b5699a [2019-11-25 08:57:23,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:23,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:23,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:23,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:23,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:23,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:23,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:23,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:23,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:23,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:23,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:23,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:23,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:23,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:23,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:23,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:23,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:23,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:23,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:23,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:23,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:23,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:23,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:23,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:23,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:23,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:23,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:23,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:23,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:23,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:23,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:23,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:23,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:23,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:23,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:23,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:23,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:23,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:23,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:23,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:23,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:57:23,703 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:23,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:23,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:23,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:23,705 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:23,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:23,706 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:57:23,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:57:23,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:23,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:57:23,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:57:23,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:57:23,707 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:57:23,708 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:57:23,708 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:57:23,708 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:57:23,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:23,709 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:23,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:57:23,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:23,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:23,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:57:23,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:57:23,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:57:23,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:23,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:57:23,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:57:23,711 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:57:23,712 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:57:23,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:57:23,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:57:23,712 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93969ab48cbc6136b5ad0701aa11c46dc35b2390 [2019-11-25 08:57:23,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:23,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:23,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:23,990 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:23,990 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:23,991 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2019-11-25 08:57:24,043 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/data/fa91ec75d/0e7f7f669d2249f98cdb2c739d953b42/FLAG4571537b2 [2019-11-25 08:57:24,469 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:24,470 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2019-11-25 08:57:24,478 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/data/fa91ec75d/0e7f7f669d2249f98cdb2c739d953b42/FLAG4571537b2 [2019-11-25 08:57:24,498 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/data/fa91ec75d/0e7f7f669d2249f98cdb2c739d953b42 [2019-11-25 08:57:24,501 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:24,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:24,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:24,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:24,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:24,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:24" (1/1) ... [2019-11-25 08:57:24,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7663c0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24, skipping insertion in model container [2019-11-25 08:57:24,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:24" (1/1) ... [2019-11-25 08:57:24,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:24,543 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:24,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:24,767 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:24,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:24,901 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:24,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24 WrapperNode [2019-11-25 08:57:24,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:24,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:24,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:24,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:24,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24" (1/1) ... [2019-11-25 08:57:24,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24" (1/1) ... [2019-11-25 08:57:24,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:24,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:24,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:24,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:24,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24" (1/1) ... [2019-11-25 08:57:24,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24" (1/1) ... [2019-11-25 08:57:24,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24" (1/1) ... [2019-11-25 08:57:24,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24" (1/1) ... [2019-11-25 08:57:25,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24" (1/1) ... [2019-11-25 08:57:25,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24" (1/1) ... [2019-11-25 08:57:25,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24" (1/1) ... [2019-11-25 08:57:25,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:25,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:25,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:25,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:25,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:57:25,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:57:25,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-25 08:57:25,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:57:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:25,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-25 08:57:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:57:25,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:57:25,801 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:25,802 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-25 08:57:25,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:25 BoogieIcfgContainer [2019-11-25 08:57:25,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:25,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:57:25,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:57:25,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:57:25,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:57:24" (1/3) ... [2019-11-25 08:57:25,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f36851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:57:25, skipping insertion in model container [2019-11-25 08:57:25,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:24" (2/3) ... [2019-11-25 08:57:25,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f36851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:57:25, skipping insertion in model container [2019-11-25 08:57:25,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:25" (3/3) ... [2019-11-25 08:57:25,809 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c.c [2019-11-25 08:57:25,818 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:57:25,824 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:57:25,834 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:57:25,851 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:57:25,851 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:57:25,852 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:57:25,852 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:25,852 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:25,852 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:57:25,852 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:25,853 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:57:25,866 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-25 08:57:25,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:57:25,871 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:25,872 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:25,872 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:25,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:25,876 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2019-11-25 08:57:25,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:57:25,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674236548] [2019-11-25 08:57:25,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/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 [2019-11-25 08:57:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:25,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-25 08:57:25,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:25,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:25,997 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:57:26,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:26,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674236548] [2019-11-25 08:57:26,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:26,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:57:26,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452792898] [2019-11-25 08:57:26,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:57:26,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:57:26,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:57:26,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:57:26,018 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-25 08:57:26,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:26,036 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2019-11-25 08:57:26,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:57:26,037 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-25 08:57:26,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:26,046 INFO L225 Difference]: With dead ends: 58 [2019-11-25 08:57:26,047 INFO L226 Difference]: Without dead ends: 27 [2019-11-25 08:57:26,050 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:57:26,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-25 08:57:26,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-25 08:57:26,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-25 08:57:26,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-11-25 08:57:26,081 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2019-11-25 08:57:26,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:26,082 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-25 08:57:26,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:57:26,082 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-11-25 08:57:26,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:57:26,083 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:26,083 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:26,296 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:57:26,296 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:26,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:26,296 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2019-11-25 08:57:26,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:57:26,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700364834] [2019-11-25 08:57:26,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/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 [2019-11-25 08:57:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:26,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-25 08:57:26,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:26,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:26,450 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:57:26,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:26,538 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700364834] [2019-11-25 08:57:26,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:26,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-25 08:57:26,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856379010] [2019-11-25 08:57:26,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:57:26,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:57:26,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:57:26,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:57:26,541 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2019-11-25 08:57:26,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:26,839 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2019-11-25 08:57:26,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:57:26,845 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-25 08:57:26,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:26,846 INFO L225 Difference]: With dead ends: 51 [2019-11-25 08:57:26,846 INFO L226 Difference]: Without dead ends: 34 [2019-11-25 08:57:26,847 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:57:26,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-25 08:57:26,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2019-11-25 08:57:26,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-25 08:57:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-11-25 08:57:26,853 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2019-11-25 08:57:26,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:26,854 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-11-25 08:57:26,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:57:26,854 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-11-25 08:57:26,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-25 08:57:26,855 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:26,855 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:27,060 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-25 08:57:27,069 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:27,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:27,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2019-11-25 08:57:27,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:57:27,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330007572] [2019-11-25 08:57:27,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/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 [2019-11-25 08:57:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:27,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:57:27,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:27,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:27,263 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:57:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:27,588 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330007572] [2019-11-25 08:57:27,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:27,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-25 08:57:27,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929585547] [2019-11-25 08:57:27,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:57:27,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:57:27,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:57:27,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:57:27,590 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2019-11-25 08:57:27,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:27,788 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-11-25 08:57:27,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:57:27,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-25 08:57:27,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:27,793 INFO L225 Difference]: With dead ends: 34 [2019-11-25 08:57:27,793 INFO L226 Difference]: Without dead ends: 22 [2019-11-25 08:57:27,794 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:57:27,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-25 08:57:27,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-25 08:57:27,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-25 08:57:27,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-11-25 08:57:27,799 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2019-11-25 08:57:27,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:27,799 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-11-25 08:57:27,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:57:27,799 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-11-25 08:57:27,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:57:27,800 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:27,800 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:28,001 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-25 08:57:28,001 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:28,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:28,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1572128049, now seen corresponding path program 1 times [2019-11-25 08:57:28,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:57:28,003 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488713930] [2019-11-25 08:57:28,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/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 [2019-11-25 08:57:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:28,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:57:28,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:28,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:28,172 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:57:28,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:28,252 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488713930] [2019-11-25 08:57:28,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:28,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-25 08:57:28,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607126477] [2019-11-25 08:57:28,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:57:28,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:57:28,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:57:28,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:57:28,254 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 8 states. [2019-11-25 08:57:28,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:28,351 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2019-11-25 08:57:28,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:57:28,352 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-11-25 08:57:28,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:28,352 INFO L225 Difference]: With dead ends: 34 [2019-11-25 08:57:28,353 INFO L226 Difference]: Without dead ends: 22 [2019-11-25 08:57:28,353 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:57:28,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-25 08:57:28,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-25 08:57:28,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-25 08:57:28,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-11-25 08:57:28,358 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 17 [2019-11-25 08:57:28,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:28,358 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2019-11-25 08:57:28,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:57:28,359 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-11-25 08:57:28,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:57:28,359 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:28,360 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:28,580 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-25 08:57:28,581 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:28,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:28,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1913492621, now seen corresponding path program 1 times [2019-11-25 08:57:28,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:57:28,581 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314117451] [2019-11-25 08:57:28,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/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 [2019-11-25 08:57:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:28,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-25 08:57:28,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:28,794 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:57:28,795 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:57:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:28,865 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314117451] [2019-11-25 08:57:28,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:28,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-25 08:57:28,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631787690] [2019-11-25 08:57:28,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-25 08:57:28,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:57:28,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-25 08:57:28,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:57:28,867 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2019-11-25 08:57:29,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:29,007 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-11-25 08:57:29,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:57:29,007 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2019-11-25 08:57:29,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:29,008 INFO L225 Difference]: With dead ends: 25 [2019-11-25 08:57:29,008 INFO L226 Difference]: Without dead ends: 22 [2019-11-25 08:57:29,009 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:57:29,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-25 08:57:29,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-25 08:57:29,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-25 08:57:29,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2019-11-25 08:57:29,014 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 17 [2019-11-25 08:57:29,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:29,014 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2019-11-25 08:57:29,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-25 08:57:29,015 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2019-11-25 08:57:29,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-25 08:57:29,015 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:29,016 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:29,216 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-25 08:57:29,216 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:29,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:29,217 INFO L82 PathProgramCache]: Analyzing trace with hash 805440418, now seen corresponding path program 1 times [2019-11-25 08:57:29,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:57:29,217 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941339833] [2019-11-25 08:57:29,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/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 [2019-11-25 08:57:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:29,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-25 08:57:29,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:29,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:57:29,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:29,486 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:57:29,487 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:57:29,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:29,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941339833] [2019-11-25 08:57:29,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:29,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2019-11-25 08:57:29,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374908303] [2019-11-25 08:57:29,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-25 08:57:29,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:57:29,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-25 08:57:29,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2019-11-25 08:57:29,795 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 16 states. [2019-11-25 08:57:30,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:30,115 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-11-25 08:57:30,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:57:30,116 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2019-11-25 08:57:30,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:30,116 INFO L225 Difference]: With dead ends: 22 [2019-11-25 08:57:30,116 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:57:30,117 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2019-11-25 08:57:30,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:57:30,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:57:30,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:57:30,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:57:30,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-11-25 08:57:30,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:30,118 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:30,118 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-25 08:57:30,118 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:57:30,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:57:30,319 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-25 08:57:30,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:57:30,607 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2019-11-25 08:57:30,607 INFO L444 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2019-11-25 08:57:30,607 INFO L444 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2019-11-25 08:57:30,607 INFO L444 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2019-11-25 08:57:30,607 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2019-11-25 08:57:30,608 INFO L440 ceAbstractionStarter]: At program point L65(lines 56 66) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_floor~0) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) .cse0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_floor_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (fp.neg (_ +zero 8 24))))) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) .cse0) |ULTIMATE.start_main_#t~short8| (= ULTIMATE.start_main_~res~0 .cse0) (= |ULTIMATE.start_floor_float_#res| .cse0) (= ULTIMATE.start_floor_float_~ix~0 (_ bv0 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32))) (= ULTIMATE.start___signbit_float_~x .cse0) (= ULTIMATE.start_floor_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-25 08:57:30,608 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:57:30,608 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:57:30,608 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:57:30,608 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2019-11-25 08:57:30,608 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2019-11-25 08:57:30,608 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2019-11-25 08:57:30,608 INFO L440 ceAbstractionStarter]: At program point L53(lines 13 54) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_floor~0) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) .cse0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_floor_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (fp.neg (_ +zero 8 24))))) (= |ULTIMATE.start_floor_float_#res| .cse0) (= ULTIMATE.start_floor_float_~ix~0 (_ bv0 32)) (= ULTIMATE.start_floor_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-25 08:57:30,609 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-25 08:57:30,609 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_floor~0) (= ULTIMATE.start_floor_float_~x (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-25 08:57:30,609 INFO L444 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2019-11-25 08:57:30,609 INFO L444 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2019-11-25 08:57:30,609 INFO L444 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2019-11-25 08:57:30,609 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:57:30,609 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-11-25 08:57:30,609 INFO L444 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-25 08:57:30,609 INFO L444 ceAbstractionStarter]: For program point L79-2(lines 79 82) no Hoare annotation was computed. [2019-11-25 08:57:30,609 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-25 08:57:30,610 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2019-11-25 08:57:30,610 INFO L444 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2019-11-25 08:57:30,610 INFO L440 ceAbstractionStarter]: At program point L59-2(lines 59 63) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_floor~0) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) .cse0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_floor_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (fp.neg (_ +zero 8 24))))) |ULTIMATE.start_main_#t~short8| (= ULTIMATE.start_main_~res~0 .cse0) (= |ULTIMATE.start_floor_float_#res| .cse0) (= ULTIMATE.start_floor_float_~ix~0 (_ bv0 32)) (= ULTIMATE.start___signbit_float_~x .cse0) (= ULTIMATE.start_floor_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-25 08:57:30,610 INFO L444 ceAbstractionStarter]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2019-11-25 08:57:30,610 INFO L447 ceAbstractionStarter]: At program point L84(lines 68 85) the Hoare annotation is: true [2019-11-25 08:57:30,610 INFO L444 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2019-11-25 08:57:30,610 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2019-11-25 08:57:30,615 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,622 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,629 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,629 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,629 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,630 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,630 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,630 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,630 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,633 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,633 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,633 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,634 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,634 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,639 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,640 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,641 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,642 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,650 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,651 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,652 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,657 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:57:30 BoogieIcfgContainer [2019-11-25 08:57:30,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:57:30,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:57:30,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:57:30,674 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:57:30,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:25" (3/4) ... [2019-11-25 08:57:30,677 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:57:30,689 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-25 08:57:30,690 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-25 08:57:30,690 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:57:30,715 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_floor && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ix == 0bv32) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-25 08:57:30,716 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_floor && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ix == 0bv32) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-25 08:57:30,716 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_floor && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ix == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-25 08:57:30,742 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c79560ee-4c59-4944-b3bb-b7ee2d56716c/bin/uautomizer/witness.graphml [2019-11-25 08:57:30,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:57:30,744 INFO L168 Benchmark]: Toolchain (without parser) took 6241.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 955.1 MB in the beginning and 876.8 MB in the end (delta: 78.3 MB). Peak memory consumption was 239.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:30,744 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:30,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 955.1 MB in the beginning and 1.2 GB in the end (delta: -202.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:30,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:30,746 INFO L168 Benchmark]: Boogie Preprocessor took 69.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:30,746 INFO L168 Benchmark]: RCFGBuilder took 765.79 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:30,747 INFO L168 Benchmark]: TraceAbstraction took 4869.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 876.8 MB in the end (delta: 243.7 MB). Peak memory consumption was 243.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:30,747 INFO L168 Benchmark]: Witness Printer took 68.84 ms. Allocated memory is still 1.2 GB. Free memory is still 876.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:30,749 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 396.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 955.1 MB in the beginning and 1.2 GB in the end (delta: -202.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 765.79 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4869.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 876.8 MB in the end (delta: 243.7 MB). Peak memory consumption was 243.7 MB. Max. memory is 11.5 GB. * Witness Printer took 68.84 ms. Allocated memory is still 1.2 GB. Free memory is still 876.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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: 13]: Loop Invariant [2019-11-25 08:57:30,762 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,762 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,763 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,765 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,766 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,766 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,766 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_floor && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ix == 0bv32) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 56]: Loop Invariant [2019-11-25 08:57:30,767 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,767 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,768 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,768 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,768 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,770 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,770 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,770 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,770 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,771 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,771 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,771 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_floor && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ix == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 16]: Loop Invariant [2019-11-25 08:57:30,772 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,774 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,774 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,774 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,774 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_floor && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 59]: Loop Invariant [2019-11-25 08:57:30,775 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,775 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,775 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,776 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,777 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,777 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,778 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,778 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-25 08:57:30,778 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:57:30,779 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,779 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:57:30,779 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_floor && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ix == 0bv32) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: SAFE, OverallTime: 4.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 111 SDtfs, 348 SDslu, 118 SDs, 0 SdLazy, 135 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 127 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 208 HoareAnnotationTreeSize, 5 FomulaSimplifications, 204 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 170 ConstructedInterpolants, 22 QuantifiedInterpolants, 18472 SizeOfPredicates, 40 NumberOfNonLiveVariables, 241 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...