./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.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_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/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 9a3696439220bbea1d6ed5ed3b22aa10206af5de ................................................................................................................................................................................................................................................................................ 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_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/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 9a3696439220bbea1d6ed5ed3b22aa10206af5de ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:12:09,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:12:09,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:12:09,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:12:09,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:12:09,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:12:09,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:12:09,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:12:09,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:12:09,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:12:09,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:12:09,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:12:09,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:12:09,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:12:09,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:12:09,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:12:09,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:12:09,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:12:09,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:12:09,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:12:09,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:12:09,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:12:09,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:12:09,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:12:09,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:12:09,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:12:09,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:12:09,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:12:09,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:12:09,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:12:09,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:12:09,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:12:09,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:12:09,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:12:09,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:12:09,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:12:09,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:12:09,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:12:09,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:12:09,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:12:09,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:12:09,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:12:09,772 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:12:09,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:12:09,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:12:09,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:12:09,774 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:12:09,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:12:09,775 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:12:09,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:12:09,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:12:09,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:12:09,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:12:09,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:12:09,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:12:09,776 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:12:09,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:12:09,777 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:12:09,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:12:09,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:12:09,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:12:09,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:12:09,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:12:09,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:12:09,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:12:09,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:12:09,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:12:09,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:12:09,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:12:09,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:12:09,780 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_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/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 -> 9a3696439220bbea1d6ed5ed3b22aa10206af5de [2019-11-15 22:12:09,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:12:09,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:12:09,818 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:12:09,819 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:12:09,820 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:12:09,820 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2019-11-15 22:12:09,874 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/data/04ece6ff4/827e669d51d84bb5a2072b6951f41a31/FLAGb82a5863e [2019-11-15 22:12:10,314 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:12:10,315 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2019-11-15 22:12:10,321 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/data/04ece6ff4/827e669d51d84bb5a2072b6951f41a31/FLAGb82a5863e [2019-11-15 22:12:10,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/data/04ece6ff4/827e669d51d84bb5a2072b6951f41a31 [2019-11-15 22:12:10,342 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:12:10,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:12:10,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:12:10,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:12:10,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:12:10,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:12:10" (1/1) ... [2019-11-15 22:12:10,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55009174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10, skipping insertion in model container [2019-11-15 22:12:10,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:12:10" (1/1) ... [2019-11-15 22:12:10,358 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:12:10,377 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:12:10,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:12:10,598 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:12:10,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:12:10,641 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:12:10,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10 WrapperNode [2019-11-15 22:12:10,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:12:10,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:12:10,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:12:10,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:12:10,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10" (1/1) ... [2019-11-15 22:12:10,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10" (1/1) ... [2019-11-15 22:12:10,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:12:10,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:12:10,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:12:10,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:12:10,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10" (1/1) ... [2019-11-15 22:12:10,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10" (1/1) ... [2019-11-15 22:12:10,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10" (1/1) ... [2019-11-15 22:12:10,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10" (1/1) ... [2019-11-15 22:12:10,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10" (1/1) ... [2019-11-15 22:12:10,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10" (1/1) ... [2019-11-15 22:12:10,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10" (1/1) ... [2019-11-15 22:12:10,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:12:10,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:12:10,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:12:10,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:12:10,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/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 22:12:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:12:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 22:12:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:12:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 22:12:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:12:10,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:12:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:12:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:12:11,204 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:12:11,205 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 22:12:11,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:12:11 BoogieIcfgContainer [2019-11-15 22:12:11,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:12:11,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:12:11,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:12:11,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:12:11,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:12:10" (1/3) ... [2019-11-15 22:12:11,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0fc809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:12:11, skipping insertion in model container [2019-11-15 22:12:11,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:10" (2/3) ... [2019-11-15 22:12:11,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0fc809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:12:11, skipping insertion in model container [2019-11-15 22:12:11,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:12:11" (3/3) ... [2019-11-15 22:12:11,213 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2019-11-15 22:12:11,223 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:12:11,228 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:12:11,237 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:12:11,256 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:12:11,256 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:12:11,256 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:12:11,256 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:12:11,257 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:12:11,257 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:12:11,257 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:12:11,257 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:12:11,269 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-15 22:12:11,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:12:11,275 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:12:11,276 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:12:11,277 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:12:11,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:12:11,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2019-11-15 22:12:11,291 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:12:11,292 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333167180] [2019-11-15 22:12:11,292 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:12:11,292 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:12:11,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:12:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:12:11,390 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 22:12:11,390 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333167180] [2019-11-15 22:12:11,391 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:12:11,391 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:12:11,392 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754011668] [2019-11-15 22:12:11,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:12:11,396 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:12:11,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:12:11,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:12:11,411 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-15 22:12:11,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:12:11,426 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2019-11-15 22:12:11,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:12:11,427 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 22:12:11,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:12:11,435 INFO L225 Difference]: With dead ends: 48 [2019-11-15 22:12:11,435 INFO L226 Difference]: Without dead ends: 22 [2019-11-15 22:12:11,438 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 22:12:11,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-15 22:12:11,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-15 22:12:11,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-15 22:12:11,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-15 22:12:11,469 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2019-11-15 22:12:11,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:12:11,469 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-15 22:12:11,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:12:11,470 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-11-15 22:12:11,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:12:11,470 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:12:11,470 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:12:11,471 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:12:11,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:12:11,471 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2019-11-15 22:12:11,471 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:12:11,472 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551496088] [2019-11-15 22:12:11,472 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:12:11,472 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:12:11,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:12:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:12:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:12:11,575 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:12:11,576 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:12:11,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:12:11 BoogieIcfgContainer [2019-11-15 22:12:11,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:12:11,601 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:12:11,601 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:12:11,602 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:12:11,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:12:11" (3/4) ... [2019-11-15 22:12:11,605 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:12:11,605 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:12:11,607 INFO L168 Benchmark]: Toolchain (without parser) took 1263.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -200.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:12:11,608 INFO L168 Benchmark]: CDTParser took 0.22 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 22:12:11,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.0 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -252.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:12:11,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:12:11,610 INFO L168 Benchmark]: Boogie Preprocessor took 33.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:12:11,610 INFO L168 Benchmark]: RCFGBuilder took 491.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:12:11,611 INFO L168 Benchmark]: TraceAbstraction took 394.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:12:11,611 INFO L168 Benchmark]: Witness Printer took 4.18 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 22:12:11,615 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 296.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.0 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -252.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 491.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 394.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.18 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: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 23, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L75] float x = 0.0f; [L13] __uint32_t w; [L15] int exponent_less_127; [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L25] COND FALSE !(exponent_less_127 < 23) [L41] COND TRUE exponent_less_127 == 128 [L43] return x + x; [L76] float res = round_float(x); [L79] EXPR res == 0.0f && __signbit_float(res) == 0 [L79] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 30 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=25occurred 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 22:12:13,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:12:13,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:12:13,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:12:13,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:12:13,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:12:13,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:12:13,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:12:13,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:12:13,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:12:13,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:12:13,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:12:13,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:12:13,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:12:13,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:12:13,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:12:13,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:12:13,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:12:13,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:12:13,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:12:13,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:12:13,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:12:13,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:12:13,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:12:13,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:12:13,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:12:13,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:12:13,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:12:13,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:12:13,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:12:13,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:12:13,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:12:13,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:12:13,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:12:13,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:12:13,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:12:13,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:12:13,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:12:13,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:12:13,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:12:13,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:12:13,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 22:12:13,869 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:12:13,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:12:13,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:12:13,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:12:13,870 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:12:13,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:12:13,871 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:12:13,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:12:13,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:12:13,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:12:13,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:12:13,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:12:13,872 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 22:12:13,872 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 22:12:13,872 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:12:13,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:12:13,873 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:12:13,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:12:13,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:12:13,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:12:13,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:12:13,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:12:13,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:12:13,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:12:13,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:12:13,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:12:13,875 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 22:12:13,875 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 22:12:13,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:12:13,875 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 22:12:13,875 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_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/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 -> 9a3696439220bbea1d6ed5ed3b22aa10206af5de [2019-11-15 22:12:13,911 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:12:13,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:12:13,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:12:13,930 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:12:13,930 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:12:13,931 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2019-11-15 22:12:13,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/data/31c9f5222/02183dca6914497ebf670e067757a15b/FLAG38f156ac9 [2019-11-15 22:12:14,326 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:12:14,327 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2019-11-15 22:12:14,333 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/data/31c9f5222/02183dca6914497ebf670e067757a15b/FLAG38f156ac9 [2019-11-15 22:12:14,704 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/data/31c9f5222/02183dca6914497ebf670e067757a15b [2019-11-15 22:12:14,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:12:14,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:12:14,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:12:14,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:12:14,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:12:14,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:12:14" (1/1) ... [2019-11-15 22:12:14,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f797cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:14, skipping insertion in model container [2019-11-15 22:12:14,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:12:14" (1/1) ... [2019-11-15 22:12:14,728 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:12:14,753 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:12:14,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:12:14,950 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:12:15,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:12:15,019 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:12:15,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:15 WrapperNode [2019-11-15 22:12:15,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:12:15,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:12:15,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:12:15,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:12:15,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:15" (1/1) ... [2019-11-15 22:12:15,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:15" (1/1) ... [2019-11-15 22:12:15,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:12:15,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:12:15,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:12:15,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:12:15,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:15" (1/1) ... [2019-11-15 22:12:15,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:15" (1/1) ... [2019-11-15 22:12:15,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:15" (1/1) ... [2019-11-15 22:12:15,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:15" (1/1) ... [2019-11-15 22:12:15,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:15" (1/1) ... [2019-11-15 22:12:15,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:15" (1/1) ... [2019-11-15 22:12:15,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:15" (1/1) ... [2019-11-15 22:12:15,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:12:15,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:12:15,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:12:15,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:12:15,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/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 22:12:15,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:12:15,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 22:12:15,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 22:12:15,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:12:15,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:12:15,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 22:12:15,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 22:12:15,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:12:15,539 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:12:15,539 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 22:12:15,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:12:15 BoogieIcfgContainer [2019-11-15 22:12:15,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:12:15,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:12:15,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:12:15,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:12:15,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:12:14" (1/3) ... [2019-11-15 22:12:15,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b610be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:12:15, skipping insertion in model container [2019-11-15 22:12:15,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:12:15" (2/3) ... [2019-11-15 22:12:15,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b610be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:12:15, skipping insertion in model container [2019-11-15 22:12:15,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:12:15" (3/3) ... [2019-11-15 22:12:15,569 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2019-11-15 22:12:15,579 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:12:15,586 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:12:15,599 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:12:15,620 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:12:15,620 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:12:15,620 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:12:15,620 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:12:15,621 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:12:15,621 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:12:15,621 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:12:15,621 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:12:15,636 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-15 22:12:15,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:12:15,643 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:12:15,644 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:12:15,646 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:12:15,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:12:15,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2019-11-15 22:12:15,660 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:12:15,660 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703954835] [2019-11-15 22:12:15,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/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 22:12:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:12:15,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 22:12:15,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:12:15,769 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 22:12:15,770 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:12:15,773 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 22:12:15,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703954835] [2019-11-15 22:12:15,774 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:12:15,774 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 22:12:15,775 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138837524] [2019-11-15 22:12:15,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:12:15,778 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:12:15,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:12:15,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:12:15,793 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-15 22:12:15,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:12:15,809 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2019-11-15 22:12:15,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:12:15,810 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 22:12:15,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:12:15,818 INFO L225 Difference]: With dead ends: 48 [2019-11-15 22:12:15,818 INFO L226 Difference]: Without dead ends: 22 [2019-11-15 22:12:15,820 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 22:12:15,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-15 22:12:15,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-15 22:12:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-15 22:12:15,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-15 22:12:15,846 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2019-11-15 22:12:15,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:12:15,846 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-15 22:12:15,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:12:15,847 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-11-15 22:12:15,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:12:15,847 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:12:15,848 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:12:16,056 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 22:12:16,056 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:12:16,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:12:16,057 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2019-11-15 22:12:16,058 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:12:16,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291954281] [2019-11-15 22:12:16,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/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 22:12:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:12:16,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 22:12:16,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:12:16,196 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 22:12:16,196 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:12:16,295 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 22:12:16,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291954281] [2019-11-15 22:12:16,296 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:12:16,296 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 22:12:16,296 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364161078] [2019-11-15 22:12:16,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 22:12:16,298 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:12:16,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 22:12:16,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:12:16,300 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 8 states. [2019-11-15 22:12:16,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:12:16,414 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2019-11-15 22:12:16,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:12:16,417 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-15 22:12:16,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:12:16,419 INFO L225 Difference]: With dead ends: 34 [2019-11-15 22:12:16,420 INFO L226 Difference]: Without dead ends: 20 [2019-11-15 22:12:16,421 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-15 22:12:16,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-15 22:12:16,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-15 22:12:16,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 22:12:16,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-11-15 22:12:16,430 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2019-11-15 22:12:16,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:12:16,431 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-11-15 22:12:16,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 22:12:16,431 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-11-15 22:12:16,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 22:12:16,433 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:12:16,435 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:12:16,656 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 22:12:16,657 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:12:16,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:12:16,657 INFO L82 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2019-11-15 22:12:16,658 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:12:16,658 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23507237] [2019-11-15 22:12:16,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/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 22:12:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:12:16,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 22:12:16,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:12:16,770 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:12:16,800 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 22:12:16,800 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:12:16,802 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:12:16,860 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 22:12:16,860 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23507237] [2019-11-15 22:12:16,860 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:12:16,860 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-15 22:12:16,861 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927151098] [2019-11-15 22:12:16,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 22:12:16,861 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:12:16,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 22:12:16,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:12:16,862 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2019-11-15 22:12:17,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:12:17,088 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-11-15 22:12:17,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:12:17,088 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-11-15 22:12:17,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:12:17,089 INFO L225 Difference]: With dead ends: 23 [2019-11-15 22:12:17,089 INFO L226 Difference]: Without dead ends: 20 [2019-11-15 22:12:17,090 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-11-15 22:12:17,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-15 22:12:17,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-15 22:12:17,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 22:12:17,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2019-11-15 22:12:17,094 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2019-11-15 22:12:17,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:12:17,094 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2019-11-15 22:12:17,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 22:12:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2019-11-15 22:12:17,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 22:12:17,095 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:12:17,095 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:12:17,296 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 22:12:17,296 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:12:17,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:12:17,297 INFO L82 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2019-11-15 22:12:17,297 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:12:17,298 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207723238] [2019-11-15 22:12:17,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/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 22:12:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:12:17,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-15 22:12:17,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:12:17,497 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:12:17,540 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 22:12:17,540 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:12:17,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:12:17,870 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 22:12:17,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207723238] [2019-11-15 22:12:17,871 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:12:17,871 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 17 [2019-11-15 22:12:17,871 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789487246] [2019-11-15 22:12:17,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-15 22:12:17,872 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:12:17,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-15 22:12:17,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-11-15 22:12:17,873 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 17 states. [2019-11-15 22:12:18,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:12:18,207 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2019-11-15 22:12:18,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 22:12:18,208 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2019-11-15 22:12:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:12:18,208 INFO L225 Difference]: With dead ends: 20 [2019-11-15 22:12:18,208 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:12:18,209 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2019-11-15 22:12:18,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:12:18,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:12:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:12:18,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:12:18,210 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-11-15 22:12:18,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:12:18,210 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:12:18,211 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-15 22:12:18,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:12:18,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:12:18,420 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 22:12:18,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 22:12:18,670 INFO L439 ceAbstractionStarter]: At program point L64(lines 55 65) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_round_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) |ULTIMATE.start_main_#t~short8| (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)))) [2019-11-15 22:12:18,670 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2019-11-15 22:12:18,670 INFO L439 ceAbstractionStarter]: At program point L52(lines 12 53) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_round_float_#res|) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24))) [2019-11-15 22:12:18,670 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 22:12:18,670 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 22:12:18,671 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 22:12:18,671 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2019-11-15 22:12:18,671 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 45) no Hoare annotation was computed. [2019-11-15 22:12:18,671 INFO L443 ceAbstractionStarter]: For program point L33(lines 33 35) no Hoare annotation was computed. [2019-11-15 22:12:18,671 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 22:12:18,671 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 46) no Hoare annotation was computed. [2019-11-15 22:12:18,671 INFO L443 ceAbstractionStarter]: For program point L58-1(lines 58 62) no Hoare annotation was computed. [2019-11-15 22:12:18,671 INFO L439 ceAbstractionStarter]: At program point L58-2(lines 58 62) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_round_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) |ULTIMATE.start_main_#t~short8| (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24))) [2019-11-15 22:12:18,672 INFO L443 ceAbstractionStarter]: For program point L58-3(lines 58 62) no Hoare annotation was computed. [2019-11-15 22:12:18,672 INFO L443 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-11-15 22:12:18,672 INFO L439 ceAbstractionStarter]: At program point L17-2(lines 17 21) the Hoare annotation is: (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) [2019-11-15 22:12:18,672 INFO L443 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-15 22:12:18,672 INFO L443 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2019-11-15 22:12:18,672 INFO L443 ceAbstractionStarter]: For program point L79-2(lines 79 82) no Hoare annotation was computed. [2019-11-15 22:12:18,672 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 39) no Hoare annotation was computed. [2019-11-15 22:12:18,672 INFO L446 ceAbstractionStarter]: At program point L84(lines 67 85) the Hoare annotation is: true [2019-11-15 22:12:18,672 INFO L443 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2019-11-15 22:12:18,673 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 51) no Hoare annotation was computed. [2019-11-15 22:12:18,673 INFO L443 ceAbstractionStarter]: For program point L47-1(lines 12 53) no Hoare annotation was computed. [2019-11-15 22:12:18,673 INFO L443 ceAbstractionStarter]: For program point L47-2(lines 47 51) no Hoare annotation was computed. [2019-11-15 22:12:18,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,686 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,690 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:12:18 BoogieIcfgContainer [2019-11-15 22:12:18,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:12:18,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:12:18,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:12:18,697 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:12:18,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:12:15" (3/4) ... [2019-11-15 22:12:18,701 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:12:18,711 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-15 22:12:18,712 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 22:12:18,712 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 22:12:18,735 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~Pluszero~LONGDOUBLE() == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE() [2019-11-15 22:12:18,736 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE() [2019-11-15 22:12:18,736 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) [2019-11-15 22:12:18,762 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_adfc0c00-1ba8-4361-ba62-44fd0a3c954c/bin/uautomizer/witness.graphml [2019-11-15 22:12:18,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:12:18,764 INFO L168 Benchmark]: Toolchain (without parser) took 4056.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 945.6 MB in the beginning and 926.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 175.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:12:18,764 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:12:18,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.49 ms. Allocated memory is still 1.0 GB. Free memory was 945.6 MB in the beginning and 929.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:12:18,765 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 929.5 MB in the beginning and 1.2 GB in the end (delta: -222.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:12:18,766 INFO L168 Benchmark]: Boogie Preprocessor took 39.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:12:18,766 INFO L168 Benchmark]: RCFGBuilder took 388.55 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: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:12:18,767 INFO L168 Benchmark]: TraceAbstraction took 3154.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 932.9 MB in the end (delta: 181.9 MB). Peak memory consumption was 181.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:12:18,767 INFO L168 Benchmark]: Witness Printer took 65.23 ms. Allocated memory is still 1.2 GB. Free memory was 932.9 MB in the beginning and 926.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:12:18,769 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 311.49 ms. Allocated memory is still 1.0 GB. Free memory was 945.6 MB in the beginning and 929.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 91.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 929.5 MB in the beginning and 1.2 GB in the end (delta: -222.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 388.55 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: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3154.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 932.9 MB in the end (delta: 181.9 MB). Peak memory consumption was 181.9 MB. Max. memory is 11.5 GB. * Witness Printer took 65.23 ms. Allocated memory is still 1.2 GB. Free memory was 932.9 MB in the beginning and 926.4 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 55]: Loop Invariant [2019-11-15 22:12:18,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,780 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,780 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,780 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) - InvariantResult [Line: 58]: Loop Invariant [2019-11-15 22:12:18,783 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,783 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,791 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,791 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,792 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,792 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,793 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,793 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 12]: Loop Invariant [2019-11-15 22:12:18,794 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,794 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,794 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,794 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:12:18,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((~Pluszero~LONGDOUBLE() == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127 && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 62 SDtfs, 163 SDslu, 63 SDs, 0 SdLazy, 89 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 138 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 49 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 19 QuantifiedInterpolants, 9350 SizeOfPredicates, 25 NumberOfNonLiveVariables, 138 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...