./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/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 af383046837f49b57572febe7198ecca5fffa750 ............................................................................................................................................................................................................................. 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_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/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 af383046837f49b57572febe7198ecca5fffa750 .............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:07:28,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:07:28,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:07:28,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:07:28,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:07:28,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:07:28,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:07:28,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:07:28,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:07:28,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:07:28,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:07:28,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:07:28,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:07:28,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:07:28,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:07:28,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:07:28,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:07:28,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:07:28,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:07:28,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:07:28,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:07:28,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:07:28,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:07:28,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:07:28,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:07:28,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:07:28,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:07:28,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:07:28,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:07:28,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:07:28,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:07:28,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:07:28,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:07:28,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:07:28,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:07:28,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:07:28,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:07:28,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:07:28,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:07:28,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:07:28,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:07:28,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 10:07:28,852 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:07:28,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:07:28,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:07:28,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:07:28,854 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:07:28,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:07:28,854 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:07:28,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:07:28,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:07:28,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:07:28,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:07:28,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:07:28,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:07:28,855 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:07:28,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:07:28,855 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:07:28,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:07:28,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:07:28,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:07:28,856 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:07:28,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:07:28,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:07:28,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:07:28,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:07:28,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:07:28,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:07:28,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:07:28,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:07:28,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:07:28,857 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_ddbbc907-0056-4a20-a666-561fa2580c82/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 -> af383046837f49b57572febe7198ecca5fffa750 [2019-12-07 10:07:28,954 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:07:28,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:07:28,965 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:07:28,966 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:07:28,966 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:07:28,967 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2019-12-07 10:07:29,008 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/data/75c56aaa5/ecd1a501cf7242fbbab8e5a10efdd41a/FLAGa3c52dcca [2019-12-07 10:07:29,336 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:07:29,337 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2019-12-07 10:07:29,341 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/data/75c56aaa5/ecd1a501cf7242fbbab8e5a10efdd41a/FLAGa3c52dcca [2019-12-07 10:07:29,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/data/75c56aaa5/ecd1a501cf7242fbbab8e5a10efdd41a [2019-12-07 10:07:29,774 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:07:29,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:07:29,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:29,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:07:29,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:07:29,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70783125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29, skipping insertion in model container [2019-12-07 10:07:29,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:07:29,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:07:29,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:29,910 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:07:29,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:29,975 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:07:29,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29 WrapperNode [2019-12-07 10:07:29,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:29,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:29,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:07:29,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:07:29,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:29,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:07:29,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:07:29,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:07:30,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:30,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:30,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:30,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:30,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:30,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:30,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:30,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:07:30,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:07:30,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:07:30,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:07:30,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/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 [2019-12-07 10:07:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 10:07:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:07:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:07:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 10:07:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:07:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:07:30,166 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:07:30,166 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:07:30,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:30 BoogieIcfgContainer [2019-12-07 10:07:30,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:07:30,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:07:30,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:07:30,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:07:30,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:07:29" (1/3) ... [2019-12-07 10:07:30,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cad3cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:30, skipping insertion in model container [2019-12-07 10:07:30,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (2/3) ... [2019-12-07 10:07:30,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cad3cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:30, skipping insertion in model container [2019-12-07 10:07:30,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:30" (3/3) ... [2019-12-07 10:07:30,172 INFO L109 eAbstractionObserver]: Analyzing ICFG float-zero-sum1.i [2019-12-07 10:07:30,178 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:07:30,182 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 10:07:30,189 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 10:07:30,203 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:07:30,203 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:07:30,203 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:07:30,203 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:07:30,203 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:07:30,204 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:07:30,204 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:07:30,204 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:07:30,212 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-12-07 10:07:30,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 10:07:30,215 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:30,216 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 10:07:30,216 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:30,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:30,220 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-12-07 10:07:30,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:30,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796294167] [2019-12-07 10:07:30,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:30,317 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:30,317 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:07:30,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:07:30 BoogieIcfgContainer [2019-12-07 10:07:30,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:07:30,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:07:30,332 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:07:30,332 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:07:30,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:30" (3/4) ... [2019-12-07 10:07:30,334 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 10:07:30,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:07:30,336 INFO L168 Benchmark]: Toolchain (without parser) took 560.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -105.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:30,336 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:30,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:30,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.82 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. [2019-12-07 10:07:30,337 INFO L168 Benchmark]: Boogie Preprocessor took 13.88 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. [2019-12-07 10:07:30,338 INFO L168 Benchmark]: RCFGBuilder took 155.02 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:30,338 INFO L168 Benchmark]: TraceAbstraction took 163.26 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:30,339 INFO L168 Benchmark]: Witness Printer took 2.88 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. [2019-12-07 10:07:30,341 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 199.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.82 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 13.88 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 155.02 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 163.26 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.88 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: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 100, overapproximation of someUnaryDOUBLEoperation at line 111. Possible FailurePath: [L100] float sum = a + b; [L101] union mix m; [L102] m.f = sum [L103] EXPR m.i [L103] COND TRUE !(m.i != 0x80000000) [L103] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 10:07:31,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:07:31,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:07:31,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:07:31,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:07:31,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:07:31,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:07:31,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:07:31,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:07:31,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:07:31,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:07:31,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:07:31,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:07:31,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:07:31,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:07:31,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:07:31,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:07:31,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:07:31,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:07:31,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:07:31,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:07:31,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:07:31,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:07:31,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:07:31,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:07:31,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:07:31,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:07:31,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:07:31,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:07:31,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:07:31,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:07:31,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:07:31,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:07:31,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:07:31,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:07:31,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:07:31,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:07:31,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:07:31,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:07:31,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:07:31,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:07:31,711 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 10:07:31,721 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:07:31,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:07:31,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:07:31,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:07:31,722 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:07:31,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:07:31,723 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:07:31,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:07:31,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:07:31,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:07:31,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:07:31,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:07:31,723 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 10:07:31,723 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 10:07:31,724 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:07:31,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:07:31,724 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:07:31,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:07:31,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:07:31,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:07:31,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:07:31,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:07:31,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:07:31,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:07:31,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:07:31,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:07:31,725 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 10:07:31,725 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 10:07:31,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:07:31,726 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:07:31,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:07:31,726 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_ddbbc907-0056-4a20-a666-561fa2580c82/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 -> af383046837f49b57572febe7198ecca5fffa750 [2019-12-07 10:07:31,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:07:31,915 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:07:31,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:07:31,919 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:07:31,919 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:07:31,920 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2019-12-07 10:07:31,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/data/79c44c6c9/4c4be1d2403f4c99bd0f6f5ced4a2097/FLAGbb9884ebb [2019-12-07 10:07:32,361 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:07:32,361 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2019-12-07 10:07:32,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/data/79c44c6c9/4c4be1d2403f4c99bd0f6f5ced4a2097/FLAGbb9884ebb [2019-12-07 10:07:32,734 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/data/79c44c6c9/4c4be1d2403f4c99bd0f6f5ced4a2097 [2019-12-07 10:07:32,736 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:07:32,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:07:32,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:32,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:07:32,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:07:32,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb3395d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32, skipping insertion in model container [2019-12-07 10:07:32,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:07:32,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:07:32,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:32,863 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:07:32,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:32,894 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:07:32,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32 WrapperNode [2019-12-07 10:07:32,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:32,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:32,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:07:32,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:07:32,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:32,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:07:32,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:07:32,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:07:32,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:07:32,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:07:32,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:07:32,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:07:32,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/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 [2019-12-07 10:07:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 10:07:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:07:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:07:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 10:07:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:07:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:07:33,132 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:07:33,133 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:07:33,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:33 BoogieIcfgContainer [2019-12-07 10:07:33,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:07:33,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:07:33,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:07:33,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:07:33,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:07:32" (1/3) ... [2019-12-07 10:07:33,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d702915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:33, skipping insertion in model container [2019-12-07 10:07:33,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (2/3) ... [2019-12-07 10:07:33,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d702915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:33, skipping insertion in model container [2019-12-07 10:07:33,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:33" (3/3) ... [2019-12-07 10:07:33,139 INFO L109 eAbstractionObserver]: Analyzing ICFG float-zero-sum1.i [2019-12-07 10:07:33,145 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:07:33,149 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 10:07:33,159 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 10:07:33,174 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:07:33,174 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:07:33,174 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:07:33,174 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:07:33,175 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:07:33,175 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:07:33,175 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:07:33,175 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:07:33,183 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-12-07 10:07:33,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 10:07:33,186 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:33,186 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 10:07:33,187 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:33,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:33,190 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-12-07 10:07:33,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 10:07:33,197 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253297603] [2019-12-07 10:07:33,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/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 [2019-12-07 10:07:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:33,271 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 10:07:33,275 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:33,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:33,323 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:07:33,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:33,368 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253297603] [2019-12-07 10:07:33,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:33,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 10:07:33,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769533498] [2019-12-07 10:07:33,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 10:07:33,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 10:07:33,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 10:07:33,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:33,382 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2019-12-07 10:07:33,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:33,429 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-12-07 10:07:33,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:07:33,431 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-12-07 10:07:33,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:33,437 INFO L225 Difference]: With dead ends: 15 [2019-12-07 10:07:33,438 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 10:07:33,440 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 10:07:33,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 10:07:33,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 10:07:33,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 10:07:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 10:07:33,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-12-07 10:07:33,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:33,458 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:07:33,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 10:07:33,458 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:07:33,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 10:07:33,660 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 10:07:33,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 10:07:33,726 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 10:07:33,726 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 10:07:33,726 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 10:07:33,726 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 10:07:33,727 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2019-12-07 10:07:33,727 INFO L242 CegarLoopResult]: At program point L112(lines 108 113) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2019-12-07 10:07:33,727 INFO L242 CegarLoopResult]: At program point L105(lines 99 106) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2019-12-07 10:07:33,727 INFO L246 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2019-12-07 10:07:33,727 INFO L246 CegarLoopResult]: For program point L103-1(line 103) no Hoare annotation was computed. [2019-12-07 10:07:33,727 INFO L246 CegarLoopResult]: For program point L103-3(line 103) no Hoare annotation was computed. [2019-12-07 10:07:33,733 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 10:07:33,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 10:07:33,736 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 10:07:33,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 10:07:33,736 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 10:07:33,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 10:07:33,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 10:07:33,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 10:07:33,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:07:33 BoogieIcfgContainer [2019-12-07 10:07:33,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:07:33,738 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:07:33,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:07:33,739 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:07:33,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:33" (3/4) ... [2019-12-07 10:07:33,742 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 10:07:33,749 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-12-07 10:07:33,749 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 10:07:33,750 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 10:07:33,777 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ddbbc907-0056-4a20-a666-561fa2580c82/bin/uautomizer/witness.graphml [2019-12-07 10:07:33,777 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:07:33,778 INFO L168 Benchmark]: Toolchain (without parser) took 1040.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -100.4 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:33,778 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:33,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.72 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. [2019-12-07 10:07:33,779 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:33,780 INFO L168 Benchmark]: Boogie Preprocessor took 18.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:33,780 INFO L168 Benchmark]: RCFGBuilder took 169.85 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: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:33,780 INFO L168 Benchmark]: TraceAbstraction took 603.72 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: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:33,781 INFO L168 Benchmark]: Witness Printer took 38.34 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. [2019-12-07 10:07:33,783 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.72 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 51.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 169.85 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: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 603.72 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: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. * Witness Printer took 38.34 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.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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: 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: 108]: Loop Invariant [2019-12-07 10:07:33,788 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 10:07:33,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 10:07:33,788 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 10:07:33,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 99]: Loop Invariant [2019-12-07 10:07:33,789 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 10:07:33,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 10:07:33,789 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 10:07:33,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 5 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 10 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...