./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float13.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_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/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 f0b260d5621e751a2a11e1abae0e8375b5cfb29c ........................................................................................................................................................................................................................... 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_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/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 f0b260d5621e751a2a11e1abae0e8375b5cfb29c ...................................................................................................................................................................................................................................................................................................................................... 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 23:25:40,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:25:40,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:25:40,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:25:40,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:25:40,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:25:40,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:25:40,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:25:40,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:25:40,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:25:40,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:25:40,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:25:40,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:25:40,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:25:40,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:25:40,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:25:40,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:25:40,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:25:40,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:25:40,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:25:40,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:25:40,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:25:40,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:25:40,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:25:40,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:25:40,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:25:40,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:25:40,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:25:40,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:25:40,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:25:40,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:25:40,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:25:40,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:25:40,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:25:40,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:25:40,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:25:40,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:25:40,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:25:40,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:25:40,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:25:40,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:25:40,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:25:40,707 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:25:40,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:25:40,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:25:40,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:25:40,709 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:25:40,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:25:40,709 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:25:40,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:25:40,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:25:40,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:25:40,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:25:40,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:25:40,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:25:40,711 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:25:40,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:25:40,711 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:25:40,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:25:40,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:25:40,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:25:40,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:25:40,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:25:40,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:25:40,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:25:40,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:25:40,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:25:40,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:25:40,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:25:40,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:25:40,715 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_4bbf0583-4940-4cfa-94a9-8b81bf878c29/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 -> f0b260d5621e751a2a11e1abae0e8375b5cfb29c [2019-11-15 23:25:40,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:25:40,750 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:25:40,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:25:40,760 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:25:40,760 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:25:40,762 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float13.c [2019-11-15 23:25:40,826 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/data/5ab08a9f2/33c48409c6414d5e93ff133ea0068a50/FLAGb5bbd5228 [2019-11-15 23:25:41,204 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:25:41,205 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/sv-benchmarks/c/floats-cbmc-regression/float13.c [2019-11-15 23:25:41,211 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/data/5ab08a9f2/33c48409c6414d5e93ff133ea0068a50/FLAGb5bbd5228 [2019-11-15 23:25:41,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/data/5ab08a9f2/33c48409c6414d5e93ff133ea0068a50 [2019-11-15 23:25:41,226 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:25:41,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:25:41,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:25:41,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:25:41,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:25:41,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:25:41" (1/1) ... [2019-11-15 23:25:41,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56110345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41, skipping insertion in model container [2019-11-15 23:25:41,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:25:41" (1/1) ... [2019-11-15 23:25:41,242 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:25:41,258 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:25:41,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:25:41,414 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:25:41,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:25:41,516 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:25:41,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41 WrapperNode [2019-11-15 23:25:41,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:25:41,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:25:41,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:25:41,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:25:41,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41" (1/1) ... [2019-11-15 23:25:41,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41" (1/1) ... [2019-11-15 23:25:41,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:25:41,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:25:41,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:25:41,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:25:41,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41" (1/1) ... [2019-11-15 23:25:41,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41" (1/1) ... [2019-11-15 23:25:41,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41" (1/1) ... [2019-11-15 23:25:41,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41" (1/1) ... [2019-11-15 23:25:41,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41" (1/1) ... [2019-11-15 23:25:41,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41" (1/1) ... [2019-11-15 23:25:41,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41" (1/1) ... [2019-11-15 23:25:41,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:25:41,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:25:41,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:25:41,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:25:41,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/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 23:25:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:25:41,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:25:41,893 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:25:41,894 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-15 23:25:41,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:25:41 BoogieIcfgContainer [2019-11-15 23:25:41,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:25:41,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:25:41,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:25:41,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:25:41,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:25:41" (1/3) ... [2019-11-15 23:25:41,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f769f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:25:41, skipping insertion in model container [2019-11-15 23:25:41,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:41" (2/3) ... [2019-11-15 23:25:41,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f769f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:25:41, skipping insertion in model container [2019-11-15 23:25:41,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:25:41" (3/3) ... [2019-11-15 23:25:41,925 INFO L109 eAbstractionObserver]: Analyzing ICFG float13.c [2019-11-15 23:25:41,935 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:25:41,955 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-15 23:25:41,967 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-15 23:25:42,003 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:25:42,003 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:25:42,003 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:25:42,003 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:25:42,017 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:25:42,017 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:25:42,017 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:25:42,017 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:25:42,035 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-15 23:25:42,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-15 23:25:42,054 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:25:42,055 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-15 23:25:42,057 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:25:42,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:25:42,063 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-15 23:25:42,073 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:25:42,074 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289973497] [2019-11-15 23:25:42,074 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:42,075 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:25:42,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:25:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:25:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:25:42,217 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:25:42,218 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:25:42,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:25:42 BoogieIcfgContainer [2019-11-15 23:25:42,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:25:42,241 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:25:42,241 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:25:42,241 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:25:42,242 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:25:41" (3/4) ... [2019-11-15 23:25:42,248 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:25:42,248 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:25:42,252 INFO L168 Benchmark]: Toolchain (without parser) took 1022.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:25:42,253 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:25:42,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:42,255 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.25 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 23:25:42,256 INFO L168 Benchmark]: Boogie Preprocessor took 32.20 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:42,257 INFO L168 Benchmark]: RCFGBuilder took 310.32 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:42,258 INFO L168 Benchmark]: TraceAbstraction took 344.56 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: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:42,259 INFO L168 Benchmark]: Witness Printer took 7.01 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 23:25:42,268 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.25 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 32.20 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 310.32 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 344.56 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: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. * Witness Printer took 7.01 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: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 3. Possible FailurePath: [L3] const float plus_infinity = 1.0f/0.0f; [L4] const float minus_infinity = 0.0f/-0.0f; [L5] const float NaN = 0.0f * (1.0f/0.0f); [L9] _Bool temp; [L12] temp = NaN < plus_infinity [L13] COND TRUE !(!temp) [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 8 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 23:25:44,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:25:44,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:25:44,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:25:44,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:25:44,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:25:44,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:25:44,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:25:44,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:25:44,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:25:44,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:25:44,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:25:44,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:25:44,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:25:44,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:25:44,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:25:44,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:25:44,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:25:44,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:25:44,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:25:44,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:25:44,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:25:44,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:25:44,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:25:44,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:25:44,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:25:44,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:25:44,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:25:44,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:25:44,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:25:44,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:25:44,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:25:44,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:25:44,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:25:44,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:25:44,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:25:44,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:25:44,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:25:44,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:25:44,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:25:44,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:25:44,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:25:44,677 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:25:44,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:25:44,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:25:44,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:25:44,681 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:25:44,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:25:44,681 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:25:44,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:25:44,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:25:44,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:25:44,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:25:44,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:25:44,685 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:25:44,685 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:25:44,686 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:25:44,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:25:44,686 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:25:44,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:25:44,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:25:44,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:25:44,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:25:44,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:25:44,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:25:44,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:25:44,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:25:44,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:25:44,690 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:25:44,691 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:25:44,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:25:44,691 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:25:44,691 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_4bbf0583-4940-4cfa-94a9-8b81bf878c29/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 -> f0b260d5621e751a2a11e1abae0e8375b5cfb29c [2019-11-15 23:25:44,753 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:25:44,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:25:44,769 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:25:44,771 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:25:44,771 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:25:44,773 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float13.c [2019-11-15 23:25:44,828 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/data/b39182b7e/1ead97d2a9fe4d00b6402df27a04932d/FLAGec55e7363 [2019-11-15 23:25:45,263 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:25:45,264 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/sv-benchmarks/c/floats-cbmc-regression/float13.c [2019-11-15 23:25:45,270 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/data/b39182b7e/1ead97d2a9fe4d00b6402df27a04932d/FLAGec55e7363 [2019-11-15 23:25:45,725 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/data/b39182b7e/1ead97d2a9fe4d00b6402df27a04932d [2019-11-15 23:25:45,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:25:45,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:25:45,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:25:45,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:25:45,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:25:45,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:25:45" (1/1) ... [2019-11-15 23:25:45,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@edd508b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45, skipping insertion in model container [2019-11-15 23:25:45,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:25:45" (1/1) ... [2019-11-15 23:25:45,743 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:25:45,759 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:25:45,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:25:45,902 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:25:45,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:25:45,933 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:25:45,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45 WrapperNode [2019-11-15 23:25:45,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:25:45,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:25:45,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:25:45,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:25:46,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45" (1/1) ... [2019-11-15 23:25:46,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45" (1/1) ... [2019-11-15 23:25:46,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:25:46,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:25:46,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:25:46,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:25:46,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45" (1/1) ... [2019-11-15 23:25:46,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45" (1/1) ... [2019-11-15 23:25:46,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45" (1/1) ... [2019-11-15 23:25:46,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45" (1/1) ... [2019-11-15 23:25:46,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45" (1/1) ... [2019-11-15 23:25:46,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45" (1/1) ... [2019-11-15 23:25:46,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45" (1/1) ... [2019-11-15 23:25:46,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:25:46,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:25:46,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:25:46,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:25:46,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/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 23:25:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:25:46,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:25:46,351 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:25:46,351 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-15 23:25:46,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:25:46 BoogieIcfgContainer [2019-11-15 23:25:46,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:25:46,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:25:46,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:25:46,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:25:46,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:25:45" (1/3) ... [2019-11-15 23:25:46,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c1919f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:25:46, skipping insertion in model container [2019-11-15 23:25:46,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:25:45" (2/3) ... [2019-11-15 23:25:46,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c1919f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:25:46, skipping insertion in model container [2019-11-15 23:25:46,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:25:46" (3/3) ... [2019-11-15 23:25:46,378 INFO L109 eAbstractionObserver]: Analyzing ICFG float13.c [2019-11-15 23:25:46,388 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:25:46,408 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-15 23:25:46,430 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-15 23:25:46,457 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:25:46,457 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:25:46,457 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:25:46,457 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:25:46,458 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:25:46,459 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:25:46,459 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:25:46,459 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:25:46,484 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-15 23:25:46,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-15 23:25:46,492 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:25:46,493 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-15 23:25:46,496 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:25:46,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:25:46,501 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-15 23:25:46,510 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:25:46,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389726960] [2019-11-15 23:25:46,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/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 23:25:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:25:46,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 23:25:46,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:25:46,634 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 23:25:46,634 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:25:46,689 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 23:25:46,690 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389726960] [2019-11-15 23:25:46,691 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:25:46,691 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-15 23:25:46,692 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645623673] [2019-11-15 23:25:46,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:25:46,695 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:25:46,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:25:46,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:25:46,706 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 5 states. [2019-11-15 23:25:46,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:25:46,822 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2019-11-15 23:25:46,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:25:46,824 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2019-11-15 23:25:46,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:25:46,830 INFO L225 Difference]: With dead ends: 55 [2019-11-15 23:25:46,831 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:25:46,834 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:25:46,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:25:46,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:25:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:25:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:25:46,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-15 23:25:46,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:25:46,860 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:25:46,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:25:46,860 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:25:46,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:25:47,073 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:25:47,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 23:25:47,117 INFO L443 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2019-11-15 23:25:47,117 INFO L443 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2019-11-15 23:25:47,118 INFO L443 ceAbstractionStarter]: For program point L31-3(line 31) no Hoare annotation was computed. [2019-11-15 23:25:47,118 INFO L443 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-11-15 23:25:47,118 INFO L443 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-11-15 23:25:47,118 INFO L443 ceAbstractionStarter]: For program point L19-3(line 19) no Hoare annotation was computed. [2019-11-15 23:25:47,118 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-11-15 23:25:47,118 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2019-11-15 23:25:47,119 INFO L439 ceAbstractionStarter]: At program point L36(lines 7 37) the Hoare annotation is: (and (= ~NaN~0 (fp.mul roundNearestTiesToEven (_ +zero 8 24) (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (= (_ bv0 8) ULTIMATE.start_main_~temp~0)) [2019-11-15 23:25:47,119 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 23:25:47,119 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 23:25:47,119 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 23:25:47,119 INFO L443 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-15 23:25:47,119 INFO L443 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-11-15 23:25:47,119 INFO L443 ceAbstractionStarter]: For program point L28-3(line 28) no Hoare annotation was computed. [2019-11-15 23:25:47,120 INFO L443 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2019-11-15 23:25:47,120 INFO L443 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2019-11-15 23:25:47,120 INFO L443 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2019-11-15 23:25:47,120 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2019-11-15 23:25:47,120 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 34) no Hoare annotation was computed. [2019-11-15 23:25:47,120 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 23:25:47,120 INFO L443 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2019-11-15 23:25:47,121 INFO L443 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2019-11-15 23:25:47,121 INFO L443 ceAbstractionStarter]: For program point L25-3(line 25) no Hoare annotation was computed. [2019-11-15 23:25:47,121 INFO L443 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-11-15 23:25:47,121 INFO L443 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-11-15 23:25:47,121 INFO L443 ceAbstractionStarter]: For program point L13-3(line 13) no Hoare annotation was computed. [2019-11-15 23:25:47,121 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2019-11-15 23:25:47,121 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2019-11-15 23:25:47,121 INFO L443 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-11-15 23:25:47,122 INFO L443 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2019-11-15 23:25:47,122 INFO L443 ceAbstractionStarter]: For program point L34-3(line 34) no Hoare annotation was computed. [2019-11-15 23:25:47,122 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-15 23:25:47,122 INFO L443 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-11-15 23:25:47,122 INFO L443 ceAbstractionStarter]: For program point L22-3(line 22) no Hoare annotation was computed. [2019-11-15 23:25:47,122 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2019-11-15 23:25:47,123 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 28) no Hoare annotation was computed. [2019-11-15 23:25:47,131 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:25:47,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:25:47,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:25:47,136 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:25:47,136 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:25:47,136 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:25:47,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:25:47 BoogieIcfgContainer [2019-11-15 23:25:47,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:25:47,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:25:47,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:25:47,140 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:25:47,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:25:46" (3/4) ... [2019-11-15 23:25:47,145 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:25:47,156 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 23:25:47,156 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 23:25:47,203 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4bbf0583-4940-4cfa-94a9-8b81bf878c29/bin/uautomizer/witness.graphml [2019-11-15 23:25:47,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:25:47,205 INFO L168 Benchmark]: Toolchain (without parser) took 1475.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -91.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:47,206 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:25:47,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.37 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:47,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:47,207 INFO L168 Benchmark]: Boogie Preprocessor took 23.57 ms. Allocated memory is still 1.1 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 23:25:47,208 INFO L168 Benchmark]: RCFGBuilder took 301.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:47,209 INFO L168 Benchmark]: TraceAbstraction took 785.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:47,209 INFO L168 Benchmark]: Witness Printer took 63.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:25:47,212 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 204.37 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.57 ms. Allocated memory is still 1.1 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 301.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 785.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * Witness Printer took 63.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 34]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 22]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 25]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 19]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 28]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant [2019-11-15 23:25:47,220 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:25:47,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:25:47,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:25:47,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:25:47,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:25:47,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: NaN == ~fp.mul~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE())) && 0bv8 == temp - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 8 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 23 SDslu, 1 SDs, 0 SdLazy, 16 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 15 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 72 SizeOfPredicates, 3 NumberOfNonLiveVariables, 8 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...