./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.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_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/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 c91754c7d707a58127a2dc4a18babac51d557647 ...................................................................................................................................................................................................................................................................................... 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_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/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 c91754c7d707a58127a2dc4a18babac51d557647 .............................................................................................................................................................................................................................................................................................................................................................................................. 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 20:39:51,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:39:51,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:39:51,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:39:51,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:39:51,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:39:51,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:39:51,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:39:51,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:39:51,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:39:51,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:39:51,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:39:51,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:39:51,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:39:51,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:39:51,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:39:51,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:39:51,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:39:51,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:39:51,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:39:51,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:39:51,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:39:51,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:39:51,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:39:51,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:39:51,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:39:51,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:39:51,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:39:51,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:39:51,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:39:51,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:39:51,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:39:51,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:39:51,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:39:51,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:39:51,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:39:51,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:39:51,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:39:51,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:39:51,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:39:51,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:39:51,662 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:39:51,674 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:39:51,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:39:51,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:39:51,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:39:51,676 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:39:51,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:39:51,677 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:39:51,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:39:51,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:39:51,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:39:51,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:39:51,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:39:51,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:39:51,678 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:39:51,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:39:51,679 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:39:51,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:39:51,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:39:51,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:39:51,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:39:51,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:39:51,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:39:51,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:39:51,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:39:51,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:39:51,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:39:51,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:39:51,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:39:51,682 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_e42d7f02-0975-472b-aaca-108f7488d3a7/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 -> c91754c7d707a58127a2dc4a18babac51d557647 [2019-11-15 20:39:51,720 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:39:51,734 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:39:51,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:39:51,739 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:39:51,739 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:39:51,741 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2019-11-15 20:39:51,791 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/data/5994c3924/98bf508ba17a49a0a6e4278090db1aa2/FLAGdba7603d1 [2019-11-15 20:39:52,155 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:39:52,157 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2019-11-15 20:39:52,163 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/data/5994c3924/98bf508ba17a49a0a6e4278090db1aa2/FLAGdba7603d1 [2019-11-15 20:39:52,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/data/5994c3924/98bf508ba17a49a0a6e4278090db1aa2 [2019-11-15 20:39:52,540 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:39:52,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:39:52,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:39:52,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:39:52,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:39:52,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:39:52" (1/1) ... [2019-11-15 20:39:52,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dfbccd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52, skipping insertion in model container [2019-11-15 20:39:52,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:39:52" (1/1) ... [2019-11-15 20:39:52,555 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:39:52,569 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:39:52,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:39:52,810 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:39:52,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:39:52,852 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:39:52,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52 WrapperNode [2019-11-15 20:39:52,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:39:52,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:39:52,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:39:52,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:39:52,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52" (1/1) ... [2019-11-15 20:39:52,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52" (1/1) ... [2019-11-15 20:39:52,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:39:52,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:39:52,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:39:52,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:39:52,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52" (1/1) ... [2019-11-15 20:39:52,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52" (1/1) ... [2019-11-15 20:39:52,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52" (1/1) ... [2019-11-15 20:39:52,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52" (1/1) ... [2019-11-15 20:39:52,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52" (1/1) ... [2019-11-15 20:39:52,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52" (1/1) ... [2019-11-15 20:39:52,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52" (1/1) ... [2019-11-15 20:39:52,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:39:52,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:39:52,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:39:52,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:39:52,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/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 20:39:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:39:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 20:39:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:39:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 20:39:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:39:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:39:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:39:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:39:53,259 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:39:53,260 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 20:39:53,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:39:53 BoogieIcfgContainer [2019-11-15 20:39:53,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:39:53,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:39:53,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:39:53,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:39:53,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:39:52" (1/3) ... [2019-11-15 20:39:53,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f6db8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:39:53, skipping insertion in model container [2019-11-15 20:39:53,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:52" (2/3) ... [2019-11-15 20:39:53,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f6db8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:39:53, skipping insertion in model container [2019-11-15 20:39:53,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:39:53" (3/3) ... [2019-11-15 20:39:53,268 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2019-11-15 20:39:53,277 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:39:53,283 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:39:53,293 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:39:53,313 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:39:53,313 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:39:53,313 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:39:53,314 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:39:53,314 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:39:53,314 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:39:53,314 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:39:53,314 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:39:53,327 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-11-15 20:39:53,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 20:39:53,333 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:39:53,334 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:39:53,335 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:39:53,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:39:53,341 INFO L82 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2019-11-15 20:39:53,348 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:39:53,349 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570766735] [2019-11-15 20:39:53,349 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:53,349 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:53,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:39:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:39:53,436 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 20:39:53,436 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570766735] [2019-11-15 20:39:53,437 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:39:53,438 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:39:53,438 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146180553] [2019-11-15 20:39:53,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:39:53,442 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:39:53,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:39:53,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:39:53,457 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-11-15 20:39:53,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:39:53,473 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2019-11-15 20:39:53,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:39:53,475 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 20:39:53,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:39:53,483 INFO L225 Difference]: With dead ends: 32 [2019-11-15 20:39:53,483 INFO L226 Difference]: Without dead ends: 14 [2019-11-15 20:39:53,486 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 20:39:53,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-15 20:39:53,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-15 20:39:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-15 20:39:53,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2019-11-15 20:39:53,516 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2019-11-15 20:39:53,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:39:53,517 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2019-11-15 20:39:53,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:39:53,517 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2019-11-15 20:39:53,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 20:39:53,519 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:39:53,520 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:39:53,520 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:39:53,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:39:53,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2019-11-15 20:39:53,521 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:39:53,522 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110608694] [2019-11-15 20:39:53,522 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:53,522 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:53,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:39:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:39:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:39:53,660 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:39:53,660 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:39:53,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:39:53 BoogieIcfgContainer [2019-11-15 20:39:53,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:39:53,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:39:53,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:39:53,687 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:39:53,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:39:53" (3/4) ... [2019-11-15 20:39:53,691 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:39:53,691 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:39:53,694 INFO L168 Benchmark]: Toolchain (without parser) took 1151.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -102.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:53,694 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 965.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:39:53,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:53,696 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:39:53,696 INFO L168 Benchmark]: Boogie Preprocessor took 29.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:39:53,697 INFO L168 Benchmark]: RCFGBuilder took 340.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:53,697 INFO L168 Benchmark]: TraceAbstraction took 423.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:53,698 INFO L168 Benchmark]: Witness Printer took 4.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:39:53,700 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 965.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 340.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 423.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.60 ms. Allocated memory is still 1.1 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: 49]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of bitwiseOr at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L43] float x = 0.0f / 0.0f; [L44] float y = __VERIFIER_nondet_float(); [L13] __uint32_t ix, iy; [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (y) [L22] EXPR gf_u.word [L22] (iy) = gf_u.word [L25] ieee_float_shape_type sf_u; [L26] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L27] EXPR sf_u.value [L27] (x) = sf_u.value [L29] return x; [L45] float res = copysign_float(x, y); [L33] return x != x; [L48] COND TRUE !isnan_float(res) [L49] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 16 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=17occurred 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, 23 NumberOfCodeBlocks, 23 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 20:39:55,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:39:55,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:39:55,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:39:55,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:39:55,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:39:55,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:39:56,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:39:56,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:39:56,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:39:56,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:39:56,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:39:56,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:39:56,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:39:56,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:39:56,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:39:56,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:39:56,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:39:56,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:39:56,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:39:56,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:39:56,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:39:56,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:39:56,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:39:56,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:39:56,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:39:56,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:39:56,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:39:56,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:39:56,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:39:56,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:39:56,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:39:56,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:39:56,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:39:56,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:39:56,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:39:56,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:39:56,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:39:56,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:39:56,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:39:56,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:39:56,059 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:39:56,079 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:39:56,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:39:56,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:39:56,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:39:56,081 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:39:56,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:39:56,082 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:39:56,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:39:56,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:39:56,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:39:56,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:39:56,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:39:56,084 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:39:56,084 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:39:56,084 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:39:56,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:39:56,085 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:39:56,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:39:56,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:39:56,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:39:56,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:39:56,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:39:56,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:39:56,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:39:56,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:39:56,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:39:56,087 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:39:56,088 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:39:56,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:39:56,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:39:56,088 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_e42d7f02-0975-472b-aaca-108f7488d3a7/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 -> c91754c7d707a58127a2dc4a18babac51d557647 [2019-11-15 20:39:56,134 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:39:56,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:39:56,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:39:56,156 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:39:56,157 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:39:56,158 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2019-11-15 20:39:56,214 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/data/dc978616a/e41430fcd4214c36a4100e1ea4f10560/FLAG546c2dc08 [2019-11-15 20:39:56,598 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:39:56,599 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2019-11-15 20:39:56,605 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/data/dc978616a/e41430fcd4214c36a4100e1ea4f10560/FLAG546c2dc08 [2019-11-15 20:39:57,029 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/data/dc978616a/e41430fcd4214c36a4100e1ea4f10560 [2019-11-15 20:39:57,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:39:57,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:39:57,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:39:57,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:39:57,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:39:57,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:39:57" (1/1) ... [2019-11-15 20:39:57,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53795f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57, skipping insertion in model container [2019-11-15 20:39:57,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:39:57" (1/1) ... [2019-11-15 20:39:57,046 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:39:57,061 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:39:57,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:39:57,248 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:39:57,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:39:57,293 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:39:57,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57 WrapperNode [2019-11-15 20:39:57,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:39:57,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:39:57,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:39:57,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:39:57,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57" (1/1) ... [2019-11-15 20:39:57,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57" (1/1) ... [2019-11-15 20:39:57,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:39:57,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:39:57,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:39:57,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:39:57,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57" (1/1) ... [2019-11-15 20:39:57,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57" (1/1) ... [2019-11-15 20:39:57,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57" (1/1) ... [2019-11-15 20:39:57,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57" (1/1) ... [2019-11-15 20:39:57,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57" (1/1) ... [2019-11-15 20:39:57,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57" (1/1) ... [2019-11-15 20:39:57,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57" (1/1) ... [2019-11-15 20:39:57,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:39:57,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:39:57,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:39:57,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:39:57,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/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 20:39:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:39:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 20:39:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 20:39:57,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:39:57,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:39:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 20:39:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 20:39:57,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:39:57,724 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:39:57,724 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 20:39:57,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:39:57 BoogieIcfgContainer [2019-11-15 20:39:57,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:39:57,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:39:57,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:39:57,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:39:57,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:39:57" (1/3) ... [2019-11-15 20:39:57,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e739b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:39:57, skipping insertion in model container [2019-11-15 20:39:57,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:57" (2/3) ... [2019-11-15 20:39:57,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e739b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:39:57, skipping insertion in model container [2019-11-15 20:39:57,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:39:57" (3/3) ... [2019-11-15 20:39:57,733 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2019-11-15 20:39:57,741 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:39:57,751 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:39:57,774 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:39:57,795 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:39:57,795 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:39:57,796 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:39:57,796 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:39:57,796 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:39:57,796 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:39:57,796 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:39:57,796 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:39:57,808 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-11-15 20:39:57,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 20:39:57,814 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:39:57,815 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:39:57,817 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:39:57,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:39:57,822 INFO L82 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2019-11-15 20:39:57,831 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:39:57,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937280410] [2019-11-15 20:39:57,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/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 20:39:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:39:57,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 20:39:57,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:39:57,946 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 20:39:57,947 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:39:57,949 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 20:39:57,950 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937280410] [2019-11-15 20:39:57,951 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:39:57,951 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 20:39:57,951 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664932622] [2019-11-15 20:39:57,957 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:39:57,957 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:39:57,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:39:57,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:39:57,967 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-11-15 20:39:57,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:39:57,989 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2019-11-15 20:39:57,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:39:57,990 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 20:39:57,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:39:57,999 INFO L225 Difference]: With dead ends: 32 [2019-11-15 20:39:57,999 INFO L226 Difference]: Without dead ends: 14 [2019-11-15 20:39:58,005 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 20:39:58,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-15 20:39:58,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-15 20:39:58,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-15 20:39:58,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2019-11-15 20:39:58,029 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2019-11-15 20:39:58,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:39:58,029 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2019-11-15 20:39:58,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:39:58,030 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2019-11-15 20:39:58,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 20:39:58,030 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:39:58,030 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:39:58,231 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 20:39:58,231 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:39:58,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:39:58,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2019-11-15 20:39:58,235 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:39:58,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367116277] [2019-11-15 20:39:58,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/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 20:39:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:39:58,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-15 20:39:58,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:39:58,456 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 20:39:58,456 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:39:58,545 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 20:39:58,546 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367116277] [2019-11-15 20:39:58,546 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:39:58,546 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-11-15 20:39:58,547 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825385549] [2019-11-15 20:39:58,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 20:39:58,548 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:39:58,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 20:39:58,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:39:58,550 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 9 states. [2019-11-15 20:39:58,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:39:58,759 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2019-11-15 20:39:58,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 20:39:58,759 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2019-11-15 20:39:58,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:39:58,759 INFO L225 Difference]: With dead ends: 14 [2019-11-15 20:39:58,760 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:39:58,761 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-11-15 20:39:58,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:39:58,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:39:58,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:39:58,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:39:58,762 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-15 20:39:58,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:39:58,762 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:39:58,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 20:39:58,763 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:39:58,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:39:58,980 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 20:39:58,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 20:39:59,065 INFO L439 ceAbstractionStarter]: At program point L33(line 33) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_copysign_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_copysign_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_copysign_float_~ix~0)) .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start_copysign_float_#res| .cse0) (= ULTIMATE.start_copysign_float_~x .cse0))) [2019-11-15 20:39:59,065 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 20:39:59,065 INFO L439 ceAbstractionStarter]: At program point L29(lines 12 30) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_copysign_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_copysign_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_copysign_float_~ix~0)) .cse0) (= |ULTIMATE.start_copysign_float_#res| .cse0) (= ULTIMATE.start_copysign_float_~x .cse0))) [2019-11-15 20:39:59,066 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-11-15 20:39:59,066 INFO L443 ceAbstractionStarter]: For program point L19-1(lines 12 30) no Hoare annotation was computed. [2019-11-15 20:39:59,066 INFO L443 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2019-11-15 20:39:59,066 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 49) no Hoare annotation was computed. [2019-11-15 20:39:59,066 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 20:39:59,067 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 20:39:59,067 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 20:39:59,067 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2019-11-15 20:39:59,067 INFO L443 ceAbstractionStarter]: For program point L24-1(lines 12 30) no Hoare annotation was computed. [2019-11-15 20:39:59,067 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2019-11-15 20:39:59,067 INFO L446 ceAbstractionStarter]: At program point L53(lines 35 54) the Hoare annotation is: true [2019-11-15 20:39:59,067 INFO L443 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2019-11-15 20:39:59,068 INFO L443 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2019-11-15 20:39:59,068 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= ULTIMATE.start_copysign_float_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-15 20:39:59,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,086 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,087 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,087 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,091 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,092 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,094 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,094 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,094 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:39:59 BoogieIcfgContainer [2019-11-15 20:39:59,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:39:59,100 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:39:59,100 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:39:59,100 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:39:59,101 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:39:57" (3/4) ... [2019-11-15 20:39:59,104 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 20:39:59,116 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 20:39:59,116 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 20:39:59,116 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 20:39:59,189 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e42d7f02-0975-472b-aaca-108f7488d3a7/bin/uautomizer/witness.graphml [2019-11-15 20:39:59,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:39:59,191 INFO L168 Benchmark]: Toolchain (without parser) took 2158.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 951.0 MB in the beginning and 979.0 MB in the end (delta: -28.0 MB). Peak memory consumption was 59.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:59,191 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:39:59,192 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.01 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:59,192 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -134.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:59,193 INFO L168 Benchmark]: Boogie Preprocessor took 29.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:39:59,193 INFO L168 Benchmark]: RCFGBuilder took 287.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:59,194 INFO L168 Benchmark]: TraceAbstraction took 1373.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 979.0 MB in the end (delta: 74.9 MB). Peak memory consumption was 74.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:59,194 INFO L168 Benchmark]: Witness Printer took 89.39 ms. Allocated memory is still 1.1 GB. Free memory is still 979.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:39:59,196 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 261.01 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 114.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -134.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 287.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1373.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 979.0 MB in the end (delta: 74.9 MB). Peak memory consumption was 74.9 MB. Max. memory is 11.5 GB. * Witness Printer took 89.39 ms. Allocated memory is still 1.1 GB. Free memory is still 979.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: 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: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant [2019-11-15 20:39:59,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,208 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,208 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,208 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 14]: Loop Invariant [2019-11-15 20:39:59,209 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,209 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 12]: Loop Invariant [2019-11-15 20:39:59,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,211 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:39:59,211 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 14 SDslu, 24 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 60 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 2130 SizeOfPredicates, 13 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...