./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/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan --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 Taipan --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/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan --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 Taipan --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 [2019-10-22 11:21:33,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:33,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:33,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:33,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:33,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:33,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:33,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:33,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:33,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:33,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:33,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:33,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:33,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:33,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:33,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:33,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:33,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:33,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:33,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:33,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:33,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:33,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:33,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:33,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:33,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:33,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:33,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:33,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:33,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:33,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:33,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:33,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:33,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:33,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:33,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:33,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:33,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:33,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:33,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:33,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:33,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:21:33,104 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:33,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:33,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:33,105 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:33,105 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:33,105 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:33,105 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:33,106 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:33,106 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:33,106 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:33,106 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:33,106 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:33,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:33,107 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:33,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:33,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:33,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:33,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:33,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:33,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:33,108 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:33,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:33,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:33,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:33,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:33,109 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:33,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:33,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:33,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:33,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:33,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:33,111 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:33,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:33,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:33,111 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:33,111 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan 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 -> Taipan 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 [2019-10-22 11:21:33,136 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:33,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:33,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:33,150 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:33,150 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:33,151 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2019-10-22 11:21:33,191 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/data/5e6d21cf2/9cb14594a2cf4551aee2557b89704d5d/FLAGad974da97 [2019-10-22 11:21:33,572 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:33,573 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2019-10-22 11:21:33,579 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/data/5e6d21cf2/9cb14594a2cf4551aee2557b89704d5d/FLAGad974da97 [2019-10-22 11:21:33,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/data/5e6d21cf2/9cb14594a2cf4551aee2557b89704d5d [2019-10-22 11:21:33,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:33,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:33,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:33,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:33,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:33,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:33" (1/1) ... [2019-10-22 11:21:33,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a2e146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:33, skipping insertion in model container [2019-10-22 11:21:33,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:33" (1/1) ... [2019-10-22 11:21:33,987 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:34,002 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:34,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:34,175 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:34,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:34,271 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:34,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:34 WrapperNode [2019-10-22 11:21:34,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:34,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:34,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:34,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:34,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:34" (1/1) ... [2019-10-22 11:21:34,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:34" (1/1) ... [2019-10-22 11:21:34,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:34,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:34,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:34,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:34,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:34" (1/1) ... [2019-10-22 11:21:34,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:34" (1/1) ... [2019-10-22 11:21:34,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:34" (1/1) ... [2019-10-22 11:21:34,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:34" (1/1) ... [2019-10-22 11:21:34,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:34" (1/1) ... [2019-10-22 11:21:34,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:34" (1/1) ... [2019-10-22 11:21:34,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:34" (1/1) ... [2019-10-22 11:21:34,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:34,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:34,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:34,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:34,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/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 [2019-10-22 11:21:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 11:21:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:21:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 11:21:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:34,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:21:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:21:34,704 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:34,704 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-10-22 11:21:34,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:34 BoogieIcfgContainer [2019-10-22 11:21:34,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:34,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:34,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:34,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:34,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:33" (1/3) ... [2019-10-22 11:21:34,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59803f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:34, skipping insertion in model container [2019-10-22 11:21:34,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:34" (2/3) ... [2019-10-22 11:21:34,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59803f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:34, skipping insertion in model container [2019-10-22 11:21:34,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:34" (3/3) ... [2019-10-22 11:21:34,738 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2019-10-22 11:21:34,755 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:34,762 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:21:34,783 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:21:34,809 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:34,810 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:34,810 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:34,810 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:34,810 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:34,810 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:34,810 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:34,811 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:34,826 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-22 11:21:34,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:21:34,838 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:34,839 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:34,841 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:34,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:34,848 INFO L82 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2019-10-22 11:21:34,857 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:34,860 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689967625] [2019-10-22 11:21:34,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:34,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:34,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:34,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:34,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689967625] [2019-10-22 11:21:34,988 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:34,989 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:34,989 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127951858] [2019-10-22 11:21:34,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:34,995 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:35,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:35,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:35,011 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-10-22 11:21:35,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:35,027 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2019-10-22 11:21:35,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:35,028 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 11:21:35,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:35,038 INFO L225 Difference]: With dead ends: 32 [2019-10-22 11:21:35,038 INFO L226 Difference]: Without dead ends: 14 [2019-10-22 11:21:35,041 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 [2019-10-22 11:21:35,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-22 11:21:35,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-22 11:21:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 11:21:35,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2019-10-22 11:21:35,074 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2019-10-22 11:21:35,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:35,074 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2019-10-22 11:21:35,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:35,074 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2019-10-22 11:21:35,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 11:21:35,075 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:35,075 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:35,075 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:35,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:35,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2019-10-22 11:21:35,076 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:35,076 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295220708] [2019-10-22 11:21:35,076 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:35,076 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:35,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:21:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:21:35,183 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:21:35,184 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:21:35,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:35 BoogieIcfgContainer [2019-10-22 11:21:35,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:35,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:35,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:35,211 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:35,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:34" (3/4) ... [2019-10-22 11:21:35,215 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:21:35,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:35,218 INFO L168 Benchmark]: Toolchain (without parser) took 1245.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:35,218 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:35,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -197.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:35,220 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:35,221 INFO L168 Benchmark]: Boogie Preprocessor took 29.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:35,221 INFO L168 Benchmark]: RCFGBuilder took 366.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:35,222 INFO L168 Benchmark]: TraceAbstraction took 503.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:35,222 INFO L168 Benchmark]: Witness Printer took 5.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:35,226 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -197.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 366.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 503.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. 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: 0.4s, 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 [2019-10-22 11:21:37,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:37,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:37,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:37,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:37,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:37,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:37,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:37,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:37,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:37,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:37,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:37,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:37,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:37,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:37,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:37,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:37,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:37,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:37,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:37,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:37,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:37,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:37,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:37,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:37,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:37,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:37,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:37,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:37,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:37,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:37,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:37,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:37,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:37,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:37,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:37,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:37,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:37,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:37,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:37,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:37,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:21:37,362 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:37,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:37,363 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:37,363 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:37,364 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:37,364 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:37,364 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:37,364 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:37,364 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:37,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:37,365 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:37,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:37,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:37,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:37,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:37,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:37,366 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:21:37,366 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:21:37,367 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:37,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:37,367 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:21:37,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:37,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:37,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:37,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:37,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:37,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:37,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:37,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:37,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:37,369 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:21:37,369 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:21:37,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:37,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:37,369 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/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan 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 -> Taipan 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 [2019-10-22 11:21:37,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:37,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:37,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:37,412 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:37,413 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:37,413 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2019-10-22 11:21:37,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/data/8640e924b/8849af24c6db4985a9f1c6e07af8ba57/FLAG7c963956b [2019-10-22 11:21:37,825 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:37,825 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2019-10-22 11:21:37,831 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/data/8640e924b/8849af24c6db4985a9f1c6e07af8ba57/FLAG7c963956b [2019-10-22 11:21:37,841 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/data/8640e924b/8849af24c6db4985a9f1c6e07af8ba57 [2019-10-22 11:21:37,843 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:37,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:37,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:37,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:37,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:37,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:37" (1/1) ... [2019-10-22 11:21:37,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@313b155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37, skipping insertion in model container [2019-10-22 11:21:37,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:37" (1/1) ... [2019-10-22 11:21:37,858 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:37,872 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:38,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:38,060 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:38,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:38,119 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:38,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38 WrapperNode [2019-10-22 11:21:38,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:38,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:38,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:38,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:38,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:38,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:38,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:38,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:38,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:38,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:38,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:38,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:38,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:38,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:38,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:38,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:38,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... [2019-10-22 11:21:38,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:38,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:38,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:38,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:38,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/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 [2019-10-22 11:21:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-10-22 11:21:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 11:21:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-10-22 11:21:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:21:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:21:38,517 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:38,518 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-10-22 11:21:38,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:38 BoogieIcfgContainer [2019-10-22 11:21:38,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:38,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:38,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:38,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:38,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:37" (1/3) ... [2019-10-22 11:21:38,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c5dc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:38, skipping insertion in model container [2019-10-22 11:21:38,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:38" (2/3) ... [2019-10-22 11:21:38,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c5dc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:38, skipping insertion in model container [2019-10-22 11:21:38,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:38" (3/3) ... [2019-10-22 11:21:38,527 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2019-10-22 11:21:38,537 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:38,547 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:21:38,557 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:21:38,584 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:38,584 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:38,584 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:38,584 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:38,584 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:38,584 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:38,584 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:38,585 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:38,604 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-22 11:21:38,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:21:38,613 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:38,614 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:38,616 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:38,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:38,623 INFO L82 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2019-10-22 11:21:38,633 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:38,638 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027796358] [2019-10-22 11:21:38,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/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 [2019-10-22 11:21:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:38,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:21:38,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:38,718 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:38,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:38,722 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027796358] [2019-10-22 11:21:38,723 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:38,723 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:21:38,724 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849937922] [2019-10-22 11:21:38,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:38,728 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:38,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:38,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:38,743 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-10-22 11:21:38,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:38,756 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2019-10-22 11:21:38,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:38,757 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 11:21:38,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:38,764 INFO L225 Difference]: With dead ends: 32 [2019-10-22 11:21:38,765 INFO L226 Difference]: Without dead ends: 14 [2019-10-22 11:21:38,768 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 [2019-10-22 11:21:38,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-22 11:21:38,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-22 11:21:38,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 11:21:38,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2019-10-22 11:21:38,798 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2019-10-22 11:21:38,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:38,798 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2019-10-22 11:21:38,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:38,798 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2019-10-22 11:21:38,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 11:21:38,799 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:38,799 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:39,000 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:21:39,000 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:39,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:39,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2019-10-22 11:21:39,001 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:39,001 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034085477] [2019-10-22 11:21:39,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/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 [2019-10-22 11:21:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:39,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-22 11:21:39,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:39,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:39,204 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:39,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:39,291 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034085477] [2019-10-22 11:21:39,292 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:39,292 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-10-22 11:21:39,292 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449349497] [2019-10-22 11:21:39,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:21:39,297 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:39,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:21:39,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:39,298 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 9 states. [2019-10-22 11:21:39,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:39,494 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2019-10-22 11:21:39,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:39,495 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2019-10-22 11:21:39,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:39,495 INFO L225 Difference]: With dead ends: 14 [2019-10-22 11:21:39,495 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:39,496 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 [2019-10-22 11:21:39,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:39,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:39,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:39,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:39,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-22 11:21:39,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:39,499 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:39,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:21:39,499 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:39,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:39,700 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 11:21:39,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:21:39,781 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))) [2019-10-22 11:21:39,781 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:21:39,781 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))) [2019-10-22 11:21:39,781 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-10-22 11:21:39,781 INFO L443 ceAbstractionStarter]: For program point L19-1(lines 12 30) no Hoare annotation was computed. [2019-10-22 11:21:39,782 INFO L443 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2019-10-22 11:21:39,782 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 49) no Hoare annotation was computed. [2019-10-22 11:21:39,782 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:21:39,782 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:21:39,782 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:21:39,782 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2019-10-22 11:21:39,782 INFO L443 ceAbstractionStarter]: For program point L24-1(lines 12 30) no Hoare annotation was computed. [2019-10-22 11:21:39,783 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2019-10-22 11:21:39,783 INFO L446 ceAbstractionStarter]: At program point L53(lines 35 54) the Hoare annotation is: true [2019-10-22 11:21:39,783 INFO L443 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2019-10-22 11:21:39,783 INFO L443 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2019-10-22 11:21:39,783 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))) [2019-10-22 11:21:39,794 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,804 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:39 BoogieIcfgContainer [2019-10-22 11:21:39,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:39,807 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:39,807 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:39,807 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:39,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:38" (3/4) ... [2019-10-22 11:21:39,813 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:39,825 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 11:21:39,825 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:21:39,825 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:21:39,862 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f81b39bf-893a-42e2-9f71-0c7c5255030f/bin/utaipan/witness.graphml [2019-10-22 11:21:39,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:39,865 INFO L168 Benchmark]: Toolchain (without parser) took 2020.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -63.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:39,865 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-10-22 11:21:39,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.94 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:39,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:39,867 INFO L168 Benchmark]: Boogie Preprocessor took 35.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:39,867 INFO L168 Benchmark]: RCFGBuilder took 262.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:39,868 INFO L168 Benchmark]: TraceAbstraction took 1286.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.7 MB). Peak memory consumption was 73.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:39,868 INFO L168 Benchmark]: Witness Printer took 56.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:39,873 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 275.94 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.9 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 99.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 262.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1286.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.7 MB). Peak memory consumption was 73.7 MB. Max. memory is 11.5 GB. * Witness Printer took 56.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 - 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 [2019-10-22 11:21:39,886 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,886 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,886 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,886 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,887 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,887 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 [2019-10-22 11:21:39,887 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,887 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 [2019-10-22 11:21:39,888 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,888 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,888 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,888 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,889 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:21:39,889 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...