./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/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 70ee165c745ab937eeca69bc762f66bcb3efe6fa ............................................................................................................................................................................................................................................................................ 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_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/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 70ee165c745ab937eeca69bc762f66bcb3efe6fa ....................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:53:32,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:32,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:32,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:32,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:32,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:32,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:32,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:32,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:32,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:32,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:32,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:32,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:32,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:32,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:32,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:32,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:32,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:32,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:32,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:32,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:32,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:32,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:32,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:32,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:32,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:32,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:32,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:32,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:32,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:32,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:32,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:32,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:32,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:32,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:32,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:32,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:32,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:32,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:32,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:32,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:32,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:53:32,304 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:32,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:32,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:32,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:32,306 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:32,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:32,306 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:32,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:53:32,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:32,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:32,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:53:32,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:53:32,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:53:32,307 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:32,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:32,308 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:32,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:53:32,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:32,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:32,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:53:32,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:53:32,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:32,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:32,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:53:32,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:53:32,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:53:32,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:53:32,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:53:32,310 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_1901a294-473c-4ffd-8d35-583dbe26f050/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 -> 70ee165c745ab937eeca69bc762f66bcb3efe6fa [2019-11-25 08:53:32,442 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:32,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:32,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:32,455 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:32,456 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:32,456 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-11-25 08:53:32,508 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/data/262fea434/f4a36d98fca5426383626f2a6054b0d0/FLAG5571ca547 [2019-11-25 08:53:32,939 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:32,940 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-11-25 08:53:32,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/data/262fea434/f4a36d98fca5426383626f2a6054b0d0/FLAG5571ca547 [2019-11-25 08:53:32,960 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/data/262fea434/f4a36d98fca5426383626f2a6054b0d0 [2019-11-25 08:53:32,964 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:32,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:32,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:32,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:32,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:32,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:32" (1/1) ... [2019-11-25 08:53:32,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb1f87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:32, skipping insertion in model container [2019-11-25 08:53:32,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:32" (1/1) ... [2019-11-25 08:53:32,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:33,003 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:33,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:33,171 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:33,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:33,279 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:33,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33 WrapperNode [2019-11-25 08:53:33,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:33,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:33,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:33,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:33,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:33,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:33,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:33,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:33,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... [2019-11-25 08:53:33,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:33,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:33,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:33,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:33,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:33,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:53:33,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-25 08:53:33,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:53:33,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-25 08:53:33,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:33,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:53:33,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:53:33,698 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:33,698 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-25 08:53:33,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:33 BoogieIcfgContainer [2019-11-25 08:53:33,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:33,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:53:33,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:53:33,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:53:33,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:53:32" (1/3) ... [2019-11-25 08:53:33,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e5ac1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:33, skipping insertion in model container [2019-11-25 08:53:33,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:33" (2/3) ... [2019-11-25 08:53:33,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e5ac1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:33, skipping insertion in model container [2019-11-25 08:53:33,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:33" (3/3) ... [2019-11-25 08:53:33,709 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2019-11-25 08:53:33,718 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:53:33,727 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:53:33,738 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:53:33,763 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:53:33,764 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:53:33,764 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:53:33,764 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:33,764 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:33,764 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:53:33,765 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:33,765 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:53:33,780 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-25 08:53:33,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-25 08:53:33,789 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:33,790 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:33,790 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:33,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:33,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times [2019-11-25 08:53:33,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:33,805 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700886144] [2019-11-25 08:53:33,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:33,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:33,923 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700886144] [2019-11-25 08:53:33,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:33,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:53:33,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477682526] [2019-11-25 08:53:33,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:53:33,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:33,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:53:33,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:53:33,945 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-11-25 08:53:33,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:33,963 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2019-11-25 08:53:33,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:53:33,965 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-25 08:53:33,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:33,974 INFO L225 Difference]: With dead ends: 28 [2019-11-25 08:53:33,974 INFO L226 Difference]: Without dead ends: 12 [2019-11-25 08:53:33,978 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:53:33,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-25 08:53:34,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-25 08:53:34,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-25 08:53:34,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-11-25 08:53:34,014 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2019-11-25 08:53:34,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:34,015 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-11-25 08:53:34,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:53:34,016 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-11-25 08:53:34,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:53:34,017 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:34,017 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:34,017 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:34,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:34,019 INFO L82 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times [2019-11-25 08:53:34,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:34,019 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70637321] [2019-11-25 08:53:34,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:34,112 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:34,112 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:53:34,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:53:34 BoogieIcfgContainer [2019-11-25 08:53:34,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:53:34,150 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:53:34,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:53:34,151 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:53:34,151 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:33" (3/4) ... [2019-11-25 08:53:34,154 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:53:34,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:53:34,160 INFO L168 Benchmark]: Toolchain (without parser) took 1190.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). Peak memory consumption was 1.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:34,161 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:34,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -200.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:34,162 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:34,163 INFO L168 Benchmark]: Boogie Preprocessor took 23.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:34,164 INFO L168 Benchmark]: RCFGBuilder took 363.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:34,164 INFO L168 Benchmark]: TraceAbstraction took 449.67 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:34,165 INFO L168 Benchmark]: Witness Printer took 4.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:34,169 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 311.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -200.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 363.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 449.67 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 40]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L35] float x = 0.0f / 0.0f; [L15] __uint32_t ix; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L22] ieee_float_shape_type sf_u; [L23] sf_u.word = (ix & 0x7fffffff) [L24] EXPR sf_u.value [L24] (x) = sf_u.value [L26] return x; [L36] float res = fabs_float(x); [L12] return x != x; [L39] COND TRUE !isnan_float(res) [L40] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 14 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=15occurred 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 0.1.24-6b5699a [2019-11-25 08:53:36,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:36,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:36,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:36,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:36,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:36,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:36,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:36,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:36,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:36,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:36,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:36,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:36,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:36,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:36,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:36,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:36,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:36,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:36,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:36,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:36,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:36,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:36,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:36,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:36,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:36,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:36,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:36,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:36,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:36,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:36,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:36,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:36,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:36,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:36,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:36,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:36,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:36,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:36,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:36,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:36,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:53:36,149 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:36,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:36,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:36,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:36,150 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:36,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:36,151 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:36,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:36,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:36,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:53:36,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:53:36,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:53:36,152 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:53:36,152 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:53:36,153 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:53:36,153 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:36,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:36,153 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:36,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:53:36,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:36,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:36,154 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:53:36,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:53:36,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:36,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:36,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:53:36,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:53:36,156 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:53:36,156 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:53:36,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:53:36,156 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:53:36,157 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_1901a294-473c-4ffd-8d35-583dbe26f050/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 -> 70ee165c745ab937eeca69bc762f66bcb3efe6fa [2019-11-25 08:53:36,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:36,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:36,445 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:36,447 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:36,448 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:36,448 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-11-25 08:53:36,506 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/data/7ab324cb8/504be0a021bb4efa80589c7584678c94/FLAGe0ef3d765 [2019-11-25 08:53:36,904 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:36,905 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-11-25 08:53:36,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/data/7ab324cb8/504be0a021bb4efa80589c7584678c94/FLAGe0ef3d765 [2019-11-25 08:53:37,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/data/7ab324cb8/504be0a021bb4efa80589c7584678c94 [2019-11-25 08:53:37,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:37,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:37,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:37,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:37,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:37,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:37" (1/1) ... [2019-11-25 08:53:37,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181b35f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37, skipping insertion in model container [2019-11-25 08:53:37,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:37" (1/1) ... [2019-11-25 08:53:37,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:37,371 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:37,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:37,576 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:37,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:37,632 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:37,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37 WrapperNode [2019-11-25 08:53:37,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:37,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:37,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:37,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:37,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37" (1/1) ... [2019-11-25 08:53:37,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37" (1/1) ... [2019-11-25 08:53:37,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:37,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:37,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:37,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:37,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37" (1/1) ... [2019-11-25 08:53:37,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37" (1/1) ... [2019-11-25 08:53:37,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37" (1/1) ... [2019-11-25 08:53:37,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37" (1/1) ... [2019-11-25 08:53:37,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37" (1/1) ... [2019-11-25 08:53:37,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37" (1/1) ... [2019-11-25 08:53:37,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37" (1/1) ... [2019-11-25 08:53:37,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:37,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:37,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:37,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:37,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:53:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-25 08:53:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:53:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-25 08:53:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:53:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:53:38,152 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:38,153 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-25 08:53:38,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:38 BoogieIcfgContainer [2019-11-25 08:53:38,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:38,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:53:38,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:53:38,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:53:38,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:53:37" (1/3) ... [2019-11-25 08:53:38,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206fc5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:38, skipping insertion in model container [2019-11-25 08:53:38,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:37" (2/3) ... [2019-11-25 08:53:38,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206fc5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:38, skipping insertion in model container [2019-11-25 08:53:38,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:38" (3/3) ... [2019-11-25 08:53:38,161 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2019-11-25 08:53:38,168 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:53:38,173 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:53:38,182 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:53:38,201 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:53:38,201 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:53:38,201 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:53:38,201 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:38,201 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:38,202 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:53:38,202 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:38,202 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:53:38,212 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-25 08:53:38,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-25 08:53:38,217 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:38,218 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:38,218 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:38,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:38,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times [2019-11-25 08:53:38,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:38,232 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424604792] [2019-11-25 08:53:38,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-25 08:53:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:38,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-25 08:53:38,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:38,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:38,313 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:38,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:38,317 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424604792] [2019-11-25 08:53:38,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:38,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:53:38,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848724003] [2019-11-25 08:53:38,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:53:38,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:38,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:53:38,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:53:38,334 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-11-25 08:53:38,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:38,349 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2019-11-25 08:53:38,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:53:38,351 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-25 08:53:38,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:38,359 INFO L225 Difference]: With dead ends: 28 [2019-11-25 08:53:38,359 INFO L226 Difference]: Without dead ends: 12 [2019-11-25 08:53:38,362 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:53:38,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-25 08:53:38,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-25 08:53:38,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-25 08:53:38,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-11-25 08:53:38,391 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2019-11-25 08:53:38,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:38,391 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-11-25 08:53:38,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:53:38,391 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-11-25 08:53:38,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:53:38,392 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:38,392 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:38,604 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:53:38,605 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:38,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:38,605 INFO L82 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times [2019-11-25 08:53:38,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:38,606 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143900697] [2019-11-25 08:53:38,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-25 08:53:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:38,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-25 08:53:38,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:38,805 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:53:38,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:38,874 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:39,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:39,071 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143900697] [2019-11-25 08:53:39,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:39,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-11-25 08:53:39,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594481551] [2019-11-25 08:53:39,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-25 08:53:39,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:39,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-25 08:53:39,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:53:39,075 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 12 states. [2019-11-25 08:53:39,378 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 17 [2019-11-25 08:53:39,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:39,627 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-11-25 08:53:39,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:53:39,627 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2019-11-25 08:53:39,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:39,627 INFO L225 Difference]: With dead ends: 12 [2019-11-25 08:53:39,628 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:53:39,629 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2019-11-25 08:53:39,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:53:39,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:53:39,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:53:39,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:53:39,630 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-25 08:53:39,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:39,630 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:53:39,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-25 08:53:39,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:53:39,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:53:39,834 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-25 08:53:39,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:53:39,966 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:53:39,966 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-11-25 08:53:39,966 INFO L444 ceAbstractionStarter]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2019-11-25 08:53:39,966 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2019-11-25 08:53:39,967 INFO L447 ceAbstractionStarter]: At program point L44(lines 29 45) the Hoare annotation is: true [2019-11-25 08:53:39,967 INFO L444 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2019-11-25 08:53:39,967 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:53:39,967 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:53:39,967 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:53:39,967 INFO L440 ceAbstractionStarter]: At program point L26(lines 14 27) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_#res|))) [2019-11-25 08:53:39,968 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2019-11-25 08:53:39,968 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-25 08:53:39,968 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (not (fp.eq ULTIMATE.start_fabs_float_~x ULTIMATE.start_fabs_float_~x)) [2019-11-25 08:53:39,968 INFO L440 ceAbstractionStarter]: At program point L12(line 12) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_#res|))) [2019-11-25 08:53:39,968 INFO L444 ceAbstractionStarter]: For program point L39(lines 39 42) no Hoare annotation was computed. [2019-11-25 08:53:39,973 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:39,974 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:39,974 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:39,991 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:39,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:39,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:39,993 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:39,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:39,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:39,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:39,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:39,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:40,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:53:40 BoogieIcfgContainer [2019-11-25 08:53:40,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:53:40,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:53:40,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:53:40,003 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:53:40,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:38" (3/4) ... [2019-11-25 08:53:40,007 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:53:40,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-25 08:53:40,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:53:40,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:53:40,071 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1901a294-473c-4ffd-8d35-583dbe26f050/bin/uautomizer/witness.graphml [2019-11-25 08:53:40,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:53:40,073 INFO L168 Benchmark]: Toolchain (without parser) took 2732.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -85.4 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:40,073 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:40,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.23 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:40,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 949.7 MB in the beginning and 1.2 GB in the end (delta: -208.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:40,076 INFO L168 Benchmark]: Boogie Preprocessor took 34.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:40,076 INFO L168 Benchmark]: RCFGBuilder took 369.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:40,077 INFO L168 Benchmark]: TraceAbstraction took 1847.88 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: 78.4 MB). Peak memory consumption was 78.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:40,078 INFO L168 Benchmark]: Witness Printer took 68.25 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:40,081 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.23 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.7 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 116.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 949.7 MB in the beginning and 1.2 GB in the end (delta: -208.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 369.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1847.88 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: 78.4 MB). Peak memory consumption was 78.4 MB. Max. memory is 11.5 GB. * Witness Printer took 68.25 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: 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: 14]: Loop Invariant [2019-11-25 08:53:40,091 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:40,091 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:40,091 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:40,092 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:40,092 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:40,093 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) - InvariantResult [Line: 12]: Loop Invariant [2019-11-25 08:53:40,093 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:40,093 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:40,094 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:40,094 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:40,094 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:53:40,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(x, x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 18 SDtfs, 12 SDslu, 16 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 64 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 6 QuantifiedInterpolants, 1588 SizeOfPredicates, 13 NumberOfNonLiveVariables, 57 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...