./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/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 fb906b6dd506785279c111a847f91453236e370a ......................................................................................................................................................................................................................................................................................... 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_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/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 fb906b6dd506785279c111a847f91453236e370a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:15:53,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:15:53,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:15:53,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:15:53,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:15:53,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:15:53,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:15:53,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:15:53,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:15:53,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:15:53,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:15:53,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:15:53,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:15:53,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:15:53,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:15:53,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:15:53,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:15:53,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:15:53,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:15:53,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:15:53,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:15:53,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:15:53,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:15:53,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:15:53,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:15:53,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:15:53,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:15:53,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:15:53,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:15:53,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:15:53,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:15:53,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:15:53,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:15:53,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:15:53,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:15:53,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:15:53,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:15:53,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:15:53,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:15:53,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:15:53,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:15:53,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:15:53,565 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:15:53,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:15:53,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:15:53,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:15:53,567 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:15:53,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:15:53,568 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:15:53,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:15:53,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:15:53,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:15:53,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:15:53,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:15:53,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:15:53,570 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:15:53,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:15:53,570 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:15:53,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:15:53,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:15:53,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:15:53,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:15:53,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:15:53,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:15:53,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:15:53,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:15:53,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:15:53,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:15:53,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:15:53,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:15:53,574 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_4bfc9e75-0c81-49c8-8a19-15c205886f9d/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 -> fb906b6dd506785279c111a847f91453236e370a [2019-11-15 23:15:53,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:15:53,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:15:53,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:15:53,616 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:15:53,616 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:15:53,617 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2019-11-15 23:15:53,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/data/e9eefcf13/5f91c2cd28ae427ead023be230a3409e/FLAG05baff2fc [2019-11-15 23:15:54,085 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:15:54,086 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2019-11-15 23:15:54,093 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/data/e9eefcf13/5f91c2cd28ae427ead023be230a3409e/FLAG05baff2fc [2019-11-15 23:15:54,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/data/e9eefcf13/5f91c2cd28ae427ead023be230a3409e [2019-11-15 23:15:54,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:15:54,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:15:54,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:15:54,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:15:54,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:15:54,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:15:54" (1/1) ... [2019-11-15 23:15:54,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519b8f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54, skipping insertion in model container [2019-11-15 23:15:54,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:15:54" (1/1) ... [2019-11-15 23:15:54,519 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:15:54,536 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:15:54,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:15:54,845 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:15:54,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:15:54,891 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:15:54,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54 WrapperNode [2019-11-15 23:15:54,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:15:54,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:15:54,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:15:54,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:15:54,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54" (1/1) ... [2019-11-15 23:15:54,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54" (1/1) ... [2019-11-15 23:15:54,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:15:54,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:15:54,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:15:54,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:15:54,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54" (1/1) ... [2019-11-15 23:15:54,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54" (1/1) ... [2019-11-15 23:15:54,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54" (1/1) ... [2019-11-15 23:15:54,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54" (1/1) ... [2019-11-15 23:15:54,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54" (1/1) ... [2019-11-15 23:15:54,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54" (1/1) ... [2019-11-15 23:15:54,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54" (1/1) ... [2019-11-15 23:15:54,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:15:54,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:15:54,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:15:54,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:15:54,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/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 [2019-11-15 23:15:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 23:15:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:15:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 23:15:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:15:55,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:15:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:15:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:15:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:15:55,393 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:15:55,393 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 23:15:55,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:15:55 BoogieIcfgContainer [2019-11-15 23:15:55,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:15:55,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:15:55,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:15:55,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:15:55,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:15:54" (1/3) ... [2019-11-15 23:15:55,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74827b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:15:55, skipping insertion in model container [2019-11-15 23:15:55,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:54" (2/3) ... [2019-11-15 23:15:55,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74827b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:15:55, skipping insertion in model container [2019-11-15 23:15:55,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:15:55" (3/3) ... [2019-11-15 23:15:55,401 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2019-11-15 23:15:55,410 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:15:55,417 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:15:55,429 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:15:55,452 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:15:55,453 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:15:55,453 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:15:55,453 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:15:55,453 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:15:55,454 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:15:55,454 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:15:55,454 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:15:55,469 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-15 23:15:55,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:15:55,476 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:15:55,477 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:15:55,479 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:15:55,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:15:55,485 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2019-11-15 23:15:55,492 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:15:55,493 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396075267] [2019-11-15 23:15:55,493 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:15:55,493 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:15:55,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:15:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:15:55,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:15:55,589 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396075267] [2019-11-15 23:15:55,590 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:15:55,590 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:15:55,590 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725052735] [2019-11-15 23:15:55,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:15:55,595 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:15:55,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:15:55,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:15:55,608 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-15 23:15:55,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:15:55,624 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2019-11-15 23:15:55,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:15:55,626 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 23:15:55,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:15:55,636 INFO L225 Difference]: With dead ends: 58 [2019-11-15 23:15:55,636 INFO L226 Difference]: Without dead ends: 27 [2019-11-15 23:15:55,639 INFO L600 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 [2019-11-15 23:15:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-15 23:15:55,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-15 23:15:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 23:15:55,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-11-15 23:15:55,673 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2019-11-15 23:15:55,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:15:55,674 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-15 23:15:55,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:15:55,674 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-11-15 23:15:55,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:15:55,675 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:15:55,675 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:15:55,675 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:15:55,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:15:55,676 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2019-11-15 23:15:55,676 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:15:55,676 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965382338] [2019-11-15 23:15:55,677 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:15:55,677 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:15:55,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:15:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:15:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:15:55,784 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:15:55,785 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:15:55,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:15:55 BoogieIcfgContainer [2019-11-15 23:15:55,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:15:55,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:15:55,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:15:55,815 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:15:55,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:15:55" (3/4) ... [2019-11-15 23:15:55,820 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:15:55,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:15:55,822 INFO L168 Benchmark]: Toolchain (without parser) took 1316.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -139.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:15:55,822 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:15:55,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:15:55,824 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.43 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. [2019-11-15 23:15:55,824 INFO L168 Benchmark]: Boogie Preprocessor took 32.17 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. [2019-11-15 23:15:55,825 INFO L168 Benchmark]: RCFGBuilder took 426.77 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: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:15:55,825 INFO L168 Benchmark]: TraceAbstraction took 419.76 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: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:15:55,826 INFO L168 Benchmark]: Witness Printer took 5.18 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. [2019-11-15 23:15:55,829 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 386.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.43 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 32.17 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 426.77 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: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 419.76 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: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.18 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: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someUnaryFLOAToperation at line 76, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [huge_ceil=1000000000000000000000000000000] [L76] float x = -0.0f; [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_ceil=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_ceil=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] return x; VAL [huge_ceil=1000000000000000000000000000000] [L77] float res = ceil_float(x); [L80] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_ceil=1000000000000000000000000000000] [L80] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L81] __VERIFIER_error() VAL [huge_ceil=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-cad4683 [2019-11-15 23:15:58,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:15:58,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:15:58,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:15:58,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:15:58,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:15:58,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:15:58,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:15:58,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:15:58,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:15:58,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:15:58,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:15:58,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:15:58,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:15:58,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:15:58,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:15:58,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:15:58,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:15:58,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:15:58,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:15:58,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:15:58,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:15:58,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:15:58,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:15:58,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:15:58,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:15:58,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:15:58,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:15:58,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:15:58,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:15:58,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:15:58,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:15:58,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:15:58,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:15:58,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:15:58,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:15:58,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:15:58,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:15:58,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:15:58,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:15:58,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:15:58,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:15:58,177 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:15:58,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:15:58,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:15:58,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:15:58,179 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:15:58,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:15:58,180 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:15:58,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:15:58,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:15:58,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:15:58,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:15:58,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:15:58,181 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:15:58,181 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:15:58,182 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:15:58,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:15:58,182 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:15:58,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:15:58,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:15:58,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:15:58,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:15:58,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:15:58,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:15:58,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:15:58,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:15:58,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:15:58,186 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:15:58,186 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:15:58,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:15:58,187 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:15:58,187 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_4bfc9e75-0c81-49c8-8a19-15c205886f9d/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 -> fb906b6dd506785279c111a847f91453236e370a [2019-11-15 23:15:58,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:15:58,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:15:58,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:15:58,261 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:15:58,262 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:15:58,263 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2019-11-15 23:15:58,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/data/77fcbbe1d/ca3dfb2fd24d4244bd64fdd5fefc35fb/FLAG5cdba1c2f [2019-11-15 23:15:58,779 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:15:58,781 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2019-11-15 23:15:58,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/data/77fcbbe1d/ca3dfb2fd24d4244bd64fdd5fefc35fb/FLAG5cdba1c2f [2019-11-15 23:15:59,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/data/77fcbbe1d/ca3dfb2fd24d4244bd64fdd5fefc35fb [2019-11-15 23:15:59,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:15:59,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:15:59,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:15:59,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:15:59,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:15:59,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:15:59" (1/1) ... [2019-11-15 23:15:59,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f8bf7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59, skipping insertion in model container [2019-11-15 23:15:59,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:15:59" (1/1) ... [2019-11-15 23:15:59,193 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:15:59,221 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:15:59,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:15:59,490 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:15:59,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:15:59,656 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:15:59,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59 WrapperNode [2019-11-15 23:15:59,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:15:59,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:15:59,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:15:59,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:15:59,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59" (1/1) ... [2019-11-15 23:15:59,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59" (1/1) ... [2019-11-15 23:15:59,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:15:59,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:15:59,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:15:59,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:15:59,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59" (1/1) ... [2019-11-15 23:15:59,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59" (1/1) ... [2019-11-15 23:15:59,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59" (1/1) ... [2019-11-15 23:15:59,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59" (1/1) ... [2019-11-15 23:15:59,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59" (1/1) ... [2019-11-15 23:15:59,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59" (1/1) ... [2019-11-15 23:15:59,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59" (1/1) ... [2019-11-15 23:15:59,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:15:59,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:15:59,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:15:59,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:15:59,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/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 [2019-11-15 23:15:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 23:15:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:15:59,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:15:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 23:15:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:15:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 23:15:59,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 23:15:59,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:16:00,404 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:16:00,404 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 23:16:00,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:16:00 BoogieIcfgContainer [2019-11-15 23:16:00,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:16:00,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:16:00,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:16:00,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:16:00,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:15:59" (1/3) ... [2019-11-15 23:16:00,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1a7d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:16:00, skipping insertion in model container [2019-11-15 23:16:00,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:15:59" (2/3) ... [2019-11-15 23:16:00,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1a7d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:16:00, skipping insertion in model container [2019-11-15 23:16:00,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:16:00" (3/3) ... [2019-11-15 23:16:00,413 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2019-11-15 23:16:00,423 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:16:00,431 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:16:00,442 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:16:00,463 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:16:00,463 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:16:00,463 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:16:00,464 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:16:00,464 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:16:00,464 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:16:00,464 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:16:00,464 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:16:00,479 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-15 23:16:00,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:16:00,487 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:16:00,488 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:16:00,490 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:16:00,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:16:00,495 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2019-11-15 23:16:00,504 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:16:00,504 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528697177] [2019-11-15 23:16:00,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/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 [2019-11-15 23:16:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:16:00,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 23:16:00,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:16:00,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:16:00,610 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:16:00,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:16:00,616 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528697177] [2019-11-15 23:16:00,617 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:16:00,617 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 23:16:00,617 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094418070] [2019-11-15 23:16:00,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:16:00,621 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:16:00,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:16:00,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:16:00,634 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-15 23:16:00,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:16:00,657 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2019-11-15 23:16:00,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:16:00,659 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 23:16:00,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:16:00,671 INFO L225 Difference]: With dead ends: 58 [2019-11-15 23:16:00,671 INFO L226 Difference]: Without dead ends: 27 [2019-11-15 23:16:00,675 INFO L600 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 [2019-11-15 23:16:00,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-15 23:16:00,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-15 23:16:00,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 23:16:00,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-11-15 23:16:00,709 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2019-11-15 23:16:00,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:16:00,710 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-15 23:16:00,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:16:00,710 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-11-15 23:16:00,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:16:00,711 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:16:00,712 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:16:00,927 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:16:00,927 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:16:00,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:16:00,928 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2019-11-15 23:16:00,929 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:16:00,929 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374238401] [2019-11-15 23:16:00,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/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 [2019-11-15 23:16:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:16:01,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 23:16:01,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:16:01,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:16:01,092 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:16:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:16:01,221 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374238401] [2019-11-15 23:16:01,221 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:16:01,222 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 23:16:01,222 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787856845] [2019-11-15 23:16:01,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:16:01,224 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:16:01,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:16:01,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:16:01,225 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2019-11-15 23:16:01,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:16:01,417 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2019-11-15 23:16:01,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:16:01,423 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-15 23:16:01,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:16:01,424 INFO L225 Difference]: With dead ends: 39 [2019-11-15 23:16:01,424 INFO L226 Difference]: Without dead ends: 21 [2019-11-15 23:16:01,425 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:16:01,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-15 23:16:01,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-15 23:16:01,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-15 23:16:01,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-15 23:16:01,431 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2019-11-15 23:16:01,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:16:01,431 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-15 23:16:01,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:16:01,431 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-15 23:16:01,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 23:16:01,432 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:16:01,432 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:16:01,647 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 23:16:01,647 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:16:01,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:16:01,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2019-11-15 23:16:01,648 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:16:01,648 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920171287] [2019-11-15 23:16:01,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/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 [2019-11-15 23:16:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:16:01,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 23:16:01,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:16:01,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:16:01,788 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:16:02,159 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-11-15 23:16:02,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:16:02,307 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920171287] [2019-11-15 23:16:02,307 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:16:02,307 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-15 23:16:02,307 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056827096] [2019-11-15 23:16:02,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:16:02,308 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:16:02,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:16:02,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:16:02,309 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2019-11-15 23:16:02,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:16:02,506 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-11-15 23:16:02,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:16:02,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-15 23:16:02,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:16:02,511 INFO L225 Difference]: With dead ends: 33 [2019-11-15 23:16:02,511 INFO L226 Difference]: Without dead ends: 21 [2019-11-15 23:16:02,512 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:16:02,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-15 23:16:02,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-15 23:16:02,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-15 23:16:02,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-11-15 23:16:02,517 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2019-11-15 23:16:02,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:16:02,518 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-11-15 23:16:02,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:16:02,518 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-11-15 23:16:02,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 23:16:02,519 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:16:02,519 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:16:02,730 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 23:16:02,730 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:16:02,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:16:02,731 INFO L82 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2019-11-15 23:16:02,731 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:16:02,732 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458565519] [2019-11-15 23:16:02,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/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 [2019-11-15 23:16:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:16:02,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 23:16:02,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:16:02,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:16:02,886 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:16:02,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:16:02,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:16:02,956 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458565519] [2019-11-15 23:16:02,957 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:16:02,957 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-15 23:16:02,957 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903810082] [2019-11-15 23:16:02,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 23:16:02,958 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:16:02,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 23:16:02,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:16:02,959 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 9 states. [2019-11-15 23:16:03,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:16:03,116 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-11-15 23:16:03,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:16:03,117 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2019-11-15 23:16:03,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:16:03,117 INFO L225 Difference]: With dead ends: 24 [2019-11-15 23:16:03,118 INFO L226 Difference]: Without dead ends: 21 [2019-11-15 23:16:03,118 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:16:03,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-15 23:16:03,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-15 23:16:03,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-15 23:16:03,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2019-11-15 23:16:03,123 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2019-11-15 23:16:03,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:16:03,124 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2019-11-15 23:16:03,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 23:16:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2019-11-15 23:16:03,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-15 23:16:03,125 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:16:03,126 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:16:03,330 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 23:16:03,331 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:16:03,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:16:03,331 INFO L82 PathProgramCache]: Analyzing trace with hash -733783834, now seen corresponding path program 1 times [2019-11-15 23:16:03,332 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:16:03,332 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607303034] [2019-11-15 23:16:03,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/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 [2019-11-15 23:16:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:16:03,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-15 23:16:03,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:16:03,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:16:03,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:16:03,622 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:16:03,625 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:16:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:16:03,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607303034] [2019-11-15 23:16:03,964 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:16:03,964 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2019-11-15 23:16:03,965 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807781201] [2019-11-15 23:16:03,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-15 23:16:03,965 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:16:03,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-15 23:16:03,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2019-11-15 23:16:03,966 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 16 states. [2019-11-15 23:16:04,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:16:04,487 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-11-15 23:16:04,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 23:16:04,489 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2019-11-15 23:16:04,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:16:04,489 INFO L225 Difference]: With dead ends: 21 [2019-11-15 23:16:04,489 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:16:04,490 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2019-11-15 23:16:04,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:16:04,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:16:04,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:16:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:16:04,491 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-11-15 23:16:04,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:16:04,491 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:16:04,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-15 23:16:04,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:16:04,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:16:04,699 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-15 23:16:04,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 23:16:04,959 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-11-15 23:16:05,044 INFO L443 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2019-11-15 23:16:05,044 INFO L446 ceAbstractionStarter]: At program point L85(lines 68 86) the Hoare annotation is: true [2019-11-15 23:16:05,044 INFO L443 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2019-11-15 23:16:05,045 INFO L443 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2019-11-15 23:16:05,045 INFO L443 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2019-11-15 23:16:05,045 INFO L443 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2019-11-15 23:16:05,045 INFO L443 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2019-11-15 23:16:05,045 INFO L439 ceAbstractionStarter]: At program point L65(lines 56 66) the Hoare annotation is: (let ((.cse1 (fp.neg (_ +zero 8 24))) (.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0) (= .cse0 ULTIMATE.start___signbit_float_~x) |ULTIMATE.start_main_#t~short8| (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_ceil_float_~x .cse1) (= (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) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) .cse1) (= .cse0 ULTIMATE.start_main_~res~0))) [2019-11-15 23:16:05,045 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 23:16:05,046 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 23:16:05,046 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 23:16:05,046 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2019-11-15 23:16:05,046 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2019-11-15 23:16:05,046 INFO L439 ceAbstractionStarter]: At program point L53(lines 13 54) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) |ULTIMATE.start_ceil_float_#res|) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))) (= ULTIMATE.start_ceil_float_~x .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) .cse0))) [2019-11-15 23:16:05,047 INFO L443 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-15 23:16:05,047 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0) (= ULTIMATE.start_ceil_float_~x (fp.neg (_ +zero 8 24)))) [2019-11-15 23:16:05,047 INFO L443 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2019-11-15 23:16:05,047 INFO L443 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2019-11-15 23:16:05,047 INFO L443 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2019-11-15 23:16:05,047 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 23:16:05,047 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-11-15 23:16:05,048 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2019-11-15 23:16:05,048 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-15 23:16:05,048 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2019-11-15 23:16:05,048 INFO L443 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2019-11-15 23:16:05,049 INFO L439 ceAbstractionStarter]: At program point L59-2(lines 59 63) the Hoare annotation is: (let ((.cse1 (fp.neg (_ +zero 8 24))) (.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0) (= .cse0 ULTIMATE.start___signbit_float_~x) |ULTIMATE.start_main_#t~short8| (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))) (= ULTIMATE.start_ceil_float_~x .cse1) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) .cse1) (= .cse0 ULTIMATE.start_main_~res~0))) [2019-11-15 23:16:05,049 INFO L443 ceAbstractionStarter]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2019-11-15 23:16:05,049 INFO L443 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2019-11-15 23:16:05,049 INFO L443 ceAbstractionStarter]: For program point L80-2(lines 80 83) no Hoare annotation was computed. [2019-11-15 23:16:05,049 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2019-11-15 23:16:05,058 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,059 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,065 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,065 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,065 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,066 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,066 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,066 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,068 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,068 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,069 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,069 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,069 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,070 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,071 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,071 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,072 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,072 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,073 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,073 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,074 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,075 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,075 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,076 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,076 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,077 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,077 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,077 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,078 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,078 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,080 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,080 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,080 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:16:05 BoogieIcfgContainer [2019-11-15 23:16:05,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:16:05,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:16:05,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:16:05,085 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:16:05,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:16:00" (3/4) ... [2019-11-15 23:16:05,089 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:16:05,102 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-15 23:16:05,103 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-15 23:16:05,132 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2019-11-15 23:16:05,133 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res [2019-11-15 23:16:05,133 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res [2019-11-15 23:16:05,162 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4bfc9e75-0c81-49c8-8a19-15c205886f9d/bin/uautomizer/witness.graphml [2019-11-15 23:16:05,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:16:05,164 INFO L168 Benchmark]: Toolchain (without parser) took 5987.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 952.4 MB in the beginning and 898.0 MB in the end (delta: 54.3 MB). Peak memory consumption was 199.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:16:05,165 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:16:05,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:16:05,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.28 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. [2019-11-15 23:16:05,166 INFO L168 Benchmark]: Boogie Preprocessor took 38.55 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. [2019-11-15 23:16:05,167 INFO L168 Benchmark]: RCFGBuilder took 664.73 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:16:05,167 INFO L168 Benchmark]: TraceAbstraction took 4677.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.5 MB in the end (delta: 204.1 MB). Peak memory consumption was 204.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:16:05,168 INFO L168 Benchmark]: Witness Printer took 78.70 ms. Allocated memory is still 1.2 GB. Free memory was 904.5 MB in the beginning and 898.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:16:05,170 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 480.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.28 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 38.55 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. * RCFGBuilder took 664.73 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4677.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.5 MB in the end (delta: 204.1 MB). Peak memory consumption was 204.1 MB. Max. memory is 11.5 GB. * Witness Printer took 78.70 ms. Allocated memory is still 1.2 GB. Free memory was 904.5 MB in the beginning and 898.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - 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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_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 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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 81]: 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 [2019-11-15 23:16:05,177 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,177 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] Derived loop invariant: (((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant [2019-11-15 23:16:05,181 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,181 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,183 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,183 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] Derived loop invariant: ((((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res - InvariantResult [Line: 16]: Loop Invariant [2019-11-15 23:16:05,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 59]: Loop Invariant [2019-11-15 23:16:05,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,188 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,188 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:16:05,189 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,189 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,189 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2019-11-15 23:16:05,193 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] Derived loop invariant: ((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: SAFE, OverallTime: 4.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 90 SDtfs, 216 SDslu, 78 SDs, 0 SdLazy, 112 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.6s 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 203 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 134 ConstructedInterpolants, 8 QuantifiedInterpolants, 8342 SizeOfPredicates, 25 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...