./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/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 95131fbb90a45f134b236581750b2f1a3cba4d8c ............................................................................................................................................................................................................................................................................................................. 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_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/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 95131fbb90a45f134b236581750b2f1a3cba4d8c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:46:36,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:46:36,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:46:36,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:46:36,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:46:36,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:46:36,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:46:36,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:46:36,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:46:36,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:46:36,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:46:36,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:46:36,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:46:36,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:46:36,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:46:36,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:46:36,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:46:36,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:46:36,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:46:36,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:46:36,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:46:36,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:46:36,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:46:36,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:46:36,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:46:36,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:46:36,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:46:36,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:46:36,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:46:36,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:46:36,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:46:36,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:46:36,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:46:36,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:46:36,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:46:36,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:46:36,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:46:36,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:46:36,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:46:36,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:46:36,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:46:36,262 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:46:36,285 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:46:36,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:46:36,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:46:36,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:46:36,287 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:46:36,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:46:36,288 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:46:36,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:46:36,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:46:36,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:46:36,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:46:36,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:46:36,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:46:36,289 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:46:36,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:46:36,289 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:46:36,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:46:36,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:46:36,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:46:36,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:46:36,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:46:36,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:46:36,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:46:36,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:46:36,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:46:36,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:46:36,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:46:36,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:46:36,292 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_e699737c-2a31-4961-91ba-5ec4e050f459/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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2019-11-15 23:46:36,335 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:46:36,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:46:36,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:46:36,352 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:46:36,353 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:46:36,354 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2019-11-15 23:46:36,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/data/2e2915b9b/70c58bcd6a7e40d19a038d15bb559201/FLAGbfbf351bf [2019-11-15 23:46:36,819 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:46:36,820 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2019-11-15 23:46:36,828 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/data/2e2915b9b/70c58bcd6a7e40d19a038d15bb559201/FLAGbfbf351bf [2019-11-15 23:46:37,225 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/data/2e2915b9b/70c58bcd6a7e40d19a038d15bb559201 [2019-11-15 23:46:37,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:46:37,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:46:37,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:46:37,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:46:37,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:46:37,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:46:37" (1/1) ... [2019-11-15 23:46:37,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@508e9bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37, skipping insertion in model container [2019-11-15 23:46:37,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:46:37" (1/1) ... [2019-11-15 23:46:37,250 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:46:37,269 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:46:37,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:46:37,519 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:46:37,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:46:37,584 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:46:37,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37 WrapperNode [2019-11-15 23:46:37,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:46:37,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:46:37,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:46:37,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:46:37,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37" (1/1) ... [2019-11-15 23:46:37,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37" (1/1) ... [2019-11-15 23:46:37,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:46:37,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:46:37,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:46:37,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:46:37,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37" (1/1) ... [2019-11-15 23:46:37,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37" (1/1) ... [2019-11-15 23:46:37,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37" (1/1) ... [2019-11-15 23:46:37,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37" (1/1) ... [2019-11-15 23:46:37,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37" (1/1) ... [2019-11-15 23:46:37,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37" (1/1) ... [2019-11-15 23:46:37,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37" (1/1) ... [2019-11-15 23:46:37,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:46:37,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:46:37,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:46:37,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:46:37,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:46:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:46:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 23:46:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:46:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 23:46:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:46:37,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:46:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:46:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 23:46:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:46:38,222 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:46:38,222 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 23:46:38,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:46:38 BoogieIcfgContainer [2019-11-15 23:46:38,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:46:38,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:46:38,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:46:38,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:46:38,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:46:37" (1/3) ... [2019-11-15 23:46:38,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca09dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:46:38, skipping insertion in model container [2019-11-15 23:46:38,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:37" (2/3) ... [2019-11-15 23:46:38,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca09dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:46:38, skipping insertion in model container [2019-11-15 23:46:38,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:46:38" (3/3) ... [2019-11-15 23:46:38,230 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2019-11-15 23:46:38,238 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:46:38,243 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:46:38,253 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:46:38,273 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:46:38,273 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:46:38,273 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:46:38,273 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:46:38,274 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:46:38,274 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:46:38,274 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:46:38,274 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:46:38,287 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-15 23:46:38,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:46:38,293 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:46:38,294 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:46:38,296 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:46:38,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:46:38,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2019-11-15 23:46:38,308 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:46:38,308 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972994648] [2019-11-15 23:46:38,309 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:46:38,309 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:46:38,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:46:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:46:38,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:46:38,434 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972994648] [2019-11-15 23:46:38,434 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:46:38,435 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:46:38,435 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136738711] [2019-11-15 23:46:38,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:46:38,439 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:46:38,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:46:38,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:46:38,454 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-15 23:46:38,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:46:38,468 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-11-15 23:46:38,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:46:38,470 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 23:46:38,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:46:38,480 INFO L225 Difference]: With dead ends: 64 [2019-11-15 23:46:38,480 INFO L226 Difference]: Without dead ends: 30 [2019-11-15 23:46:38,483 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:46:38,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-15 23:46:38,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-15 23:46:38,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-15 23:46:38,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-11-15 23:46:38,513 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2019-11-15 23:46:38,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:46:38,513 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-15 23:46:38,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:46:38,514 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-11-15 23:46:38,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:46:38,514 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:46:38,515 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:46:38,515 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:46:38,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:46:38,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2019-11-15 23:46:38,515 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:46:38,516 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816079062] [2019-11-15 23:46:38,516 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:46:38,516 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:46:38,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:46:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:46:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:46:38,712 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:46:38,713 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:46:38,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:46:38 BoogieIcfgContainer [2019-11-15 23:46:38,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:46:38,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:46:38,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:46:38,762 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:46:38,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:46:38" (3/4) ... [2019-11-15 23:46:38,766 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:46:38,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:46:38,769 INFO L168 Benchmark]: Toolchain (without parser) took 1538.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -118.5 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:46:38,770 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:46:38,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:46:38,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.87 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:46:38,772 INFO L168 Benchmark]: Boogie Preprocessor took 39.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:46:38,772 INFO L168 Benchmark]: RCFGBuilder took 550.84 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:46:38,773 INFO L168 Benchmark]: TraceAbstraction took 535.53 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:46:38,773 INFO L168 Benchmark]: Witness Printer took 5.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:46:38,776 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 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 355.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.87 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.70 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 550.84 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 535.53 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.81 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: 132]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 65, overapproximation of someBinaryArithmeticFLOAToperation at line 68. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L52-L54] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L127] float x = 0.0f / 0.0f; [L57] float w, s1, s2, z; [L58] __int32_t ix, hx, id; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L61] ieee_float_shape_type gf_u; [L62] gf_u.value = (x) [L63] EXPR gf_u.word [L63] (hx) = gf_u.word [L65] ix = hx & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L66] COND TRUE ix >= 0x50800000 VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L67] COND TRUE ((ix) > 0x7f800000L) [L68] return x + x; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L128] float res = atan_float(x); [L15] return x != x; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L131] COND TRUE !isnan_float(res) [L132] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 43 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=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 23:46:40,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:46:40,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:46:40,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:46:40,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:46:40,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:46:40,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:46:40,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:46:40,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:46:40,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:46:40,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:46:40,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:46:40,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:46:40,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:46:40,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:46:40,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:46:40,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:46:40,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:46:40,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:46:40,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:46:40,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:46:40,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:46:40,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:46:40,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:46:40,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:46:40,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:46:40,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:46:40,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:46:40,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:46:40,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:46:40,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:46:40,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:46:40,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:46:40,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:46:40,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:46:40,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:46:40,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:46:40,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:46:40,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:46:40,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:46:40,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:46:40,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:46:40,895 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:46:40,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:46:40,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:46:40,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:46:40,907 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:46:40,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:46:40,907 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:46:40,907 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:46:40,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:46:40,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:46:40,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:46:40,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:46:40,908 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:46:40,909 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:46:40,909 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:46:40,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:46:40,910 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:46:40,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:46:40,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:46:40,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:46:40,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:46:40,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:46:40,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:46:40,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:46:40,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:46:40,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:46:40,912 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:46:40,913 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:46:40,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:46:40,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:46:40,914 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_e699737c-2a31-4961-91ba-5ec4e050f459/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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2019-11-15 23:46:40,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:46:40,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:46:40,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:46:40,969 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:46:40,971 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:46:40,973 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2019-11-15 23:46:41,043 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/data/80ec0081e/0c15385781344f7ca6c260d7bf30c79e/FLAG12e73a45f [2019-11-15 23:46:41,427 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:46:41,429 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2019-11-15 23:46:41,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/data/80ec0081e/0c15385781344f7ca6c260d7bf30c79e/FLAG12e73a45f [2019-11-15 23:46:41,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/data/80ec0081e/0c15385781344f7ca6c260d7bf30c79e [2019-11-15 23:46:41,780 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:46:41,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:46:41,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:46:41,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:46:41,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:46:41,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:46:41" (1/1) ... [2019-11-15 23:46:41,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496478c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:41, skipping insertion in model container [2019-11-15 23:46:41,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:46:41" (1/1) ... [2019-11-15 23:46:41,801 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:46:41,831 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:46:42,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:46:42,098 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:46:42,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:46:42,224 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:46:42,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:42 WrapperNode [2019-11-15 23:46:42,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:46:42,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:46:42,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:46:42,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:46:42,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:42" (1/1) ... [2019-11-15 23:46:42,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:42" (1/1) ... [2019-11-15 23:46:42,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:46:42,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:46:42,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:46:42,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:46:42,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:42" (1/1) ... [2019-11-15 23:46:42,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:42" (1/1) ... [2019-11-15 23:46:42,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:42" (1/1) ... [2019-11-15 23:46:42,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:42" (1/1) ... [2019-11-15 23:46:42,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:42" (1/1) ... [2019-11-15 23:46:42,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:42" (1/1) ... [2019-11-15 23:46:42,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:42" (1/1) ... [2019-11-15 23:46:42,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:46:42,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:46:42,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:46:42,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:46:42,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:46:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-15 23:46:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:46:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 23:46:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 23:46:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:46:42,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:46:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 23:46:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 23:46:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:46:52,535 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:46:52,535 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 23:46:52,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:46:52 BoogieIcfgContainer [2019-11-15 23:46:52,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:46:52,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:46:52,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:46:52,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:46:52,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:46:41" (1/3) ... [2019-11-15 23:46:52,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38757d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:46:52, skipping insertion in model container [2019-11-15 23:46:52,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:46:42" (2/3) ... [2019-11-15 23:46:52,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38757d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:46:52, skipping insertion in model container [2019-11-15 23:46:52,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:46:52" (3/3) ... [2019-11-15 23:46:52,548 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2019-11-15 23:46:52,557 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:46:52,564 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:46:52,574 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:46:52,594 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:46:52,594 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:46:52,594 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:46:52,595 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:46:52,595 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:46:52,595 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:46:52,595 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:46:52,595 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:46:52,607 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-15 23:46:52,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:46:52,612 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:46:52,613 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:46:52,615 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:46:52,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:46:52,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2019-11-15 23:46:52,627 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:46:52,627 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084252191] [2019-11-15 23:46:52,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 23:46:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:46:52,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 23:46:52,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:46:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:46:52,820 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:46:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:46:52,825 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084252191] [2019-11-15 23:46:52,825 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:46:52,825 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 23:46:52,826 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176259466] [2019-11-15 23:46:52,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:46:52,830 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:46:52,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:46:52,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:46:52,841 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-15 23:46:52,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:46:52,857 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-11-15 23:46:52,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:46:52,858 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 23:46:52,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:46:52,866 INFO L225 Difference]: With dead ends: 64 [2019-11-15 23:46:52,866 INFO L226 Difference]: Without dead ends: 30 [2019-11-15 23:46:52,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:46:52,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-15 23:46:52,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-15 23:46:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-15 23:46:52,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-11-15 23:46:52,895 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2019-11-15 23:46:52,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:46:52,895 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-15 23:46:52,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:46:52,895 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-11-15 23:46:52,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:46:52,896 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:46:52,896 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:46:53,110 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:46:53,110 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:46:53,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:46:53,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2019-11-15 23:46:53,112 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:46:53,112 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544873079] [2019-11-15 23:46:53,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 23:46:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:46:53,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 23:46:53,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:46:53,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:46:53,382 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:46:53,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:46:53,498 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544873079] [2019-11-15 23:46:53,498 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:46:53,498 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-15 23:46:53,498 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823455506] [2019-11-15 23:46:53,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:46:53,500 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:46:53,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:46:53,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:46:53,501 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 8 states. [2019-11-15 23:47:04,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:04,868 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2019-11-15 23:47:04,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:47:04,929 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-15 23:47:04,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:04,930 INFO L225 Difference]: With dead ends: 44 [2019-11-15 23:47:04,930 INFO L226 Difference]: Without dead ends: 36 [2019-11-15 23:47:04,933 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:47:04,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-15 23:47:04,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2019-11-15 23:47:04,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-15 23:47:04,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2019-11-15 23:47:04,953 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 11 [2019-11-15 23:47:04,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:04,954 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2019-11-15 23:47:04,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:47:04,955 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2019-11-15 23:47:04,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 23:47:04,956 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:47:04,956 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:47:05,174 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 23:47:05,174 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:47:05,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:47:05,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1812830160, now seen corresponding path program 1 times [2019-11-15 23:47:05,175 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:47:05,175 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618906684] [2019-11-15 23:47:05,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 23:47:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:47:05,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 23:47:05,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:47:05,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:47:05,476 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:47:05,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:47:05,616 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618906684] [2019-11-15 23:47:05,616 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:47:05,616 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2019-11-15 23:47:05,616 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729880502] [2019-11-15 23:47:05,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 23:47:05,617 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:47:05,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 23:47:05,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:47:05,618 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 9 states. [2019-11-15 23:47:05,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:47:05,712 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2019-11-15 23:47:05,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:47:05,714 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2019-11-15 23:47:05,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:47:05,714 INFO L225 Difference]: With dead ends: 30 [2019-11-15 23:47:05,714 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:47:05,715 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:47:05,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:47:05,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:47:05,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:47:05,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:47:05,716 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-11-15 23:47:05,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:47:05,716 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:47:05,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 23:47:05,716 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:47:05,716 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:47:05,917 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 23:47:05,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 23:47:06,000 INFO L443 ceAbstractionStarter]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2019-11-15 23:47:06,000 INFO L439 ceAbstractionStarter]: At program point L60-2(lines 60 64) the Hoare annotation is: (= ULTIMATE.start_atan_float_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-15 23:47:06,001 INFO L443 ceAbstractionStarter]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2019-11-15 23:47:06,001 INFO L443 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-11-15 23:47:06,001 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2019-11-15 23:47:06,001 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 72) no Hoare annotation was computed. [2019-11-15 23:47:06,001 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 23:47:06,001 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 23:47:06,002 INFO L446 ceAbstractionStarter]: At program point L136(lines 120 137) the Hoare annotation is: true [2019-11-15 23:47:06,002 INFO L439 ceAbstractionStarter]: At program point L29(lines 17 30) the Hoare annotation is: false [2019-11-15 23:47:06,002 INFO L443 ceAbstractionStarter]: For program point L112(lines 112 117) no Hoare annotation was computed. [2019-11-15 23:47:06,002 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 132) no Hoare annotation was computed. [2019-11-15 23:47:06,002 INFO L439 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start_atan_float_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start_atan_float_~x .cse0))) [2019-11-15 23:47:06,003 INFO L443 ceAbstractionStarter]: For program point L131(lines 131 134) no Hoare annotation was computed. [2019-11-15 23:47:06,003 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 23:47:06,003 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2019-11-15 23:47:06,003 INFO L443 ceAbstractionStarter]: For program point L24-1(lines 17 30) no Hoare annotation was computed. [2019-11-15 23:47:06,003 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2019-11-15 23:47:06,003 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 98) no Hoare annotation was computed. [2019-11-15 23:47:06,004 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 99) no Hoare annotation was computed. [2019-11-15 23:47:06,004 INFO L443 ceAbstractionStarter]: For program point L132(line 132) no Hoare annotation was computed. [2019-11-15 23:47:06,004 INFO L443 ceAbstractionStarter]: For program point L66(lines 66 73) no Hoare annotation was computed. [2019-11-15 23:47:06,004 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 23:47:06,004 INFO L443 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2019-11-15 23:47:06,004 INFO L443 ceAbstractionStarter]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2019-11-15 23:47:06,004 INFO L443 ceAbstractionStarter]: For program point L116(line 116) no Hoare annotation was computed. [2019-11-15 23:47:06,005 INFO L443 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2019-11-15 23:47:06,005 INFO L443 ceAbstractionStarter]: For program point L116-2(line 116) no Hoare annotation was computed. [2019-11-15 23:47:06,005 INFO L439 ceAbstractionStarter]: At program point L116-3(lines 56 118) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start_atan_float_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start_atan_float_~x .cse0))) [2019-11-15 23:47:06,005 INFO L443 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2019-11-15 23:47:06,005 INFO L443 ceAbstractionStarter]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2019-11-15 23:47:06,005 INFO L443 ceAbstractionStarter]: For program point L67(lines 67 68) no Hoare annotation was computed. [2019-11-15 23:47:06,006 INFO L443 ceAbstractionStarter]: For program point L76(lines 76 77) no Hoare annotation was computed. [2019-11-15 23:47:06,017 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,018 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,019 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,019 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,024 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,027 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,027 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,027 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,030 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,031 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,032 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,032 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,032 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,033 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,033 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,033 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,034 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,034 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:47:06 BoogieIcfgContainer [2019-11-15 23:47:06,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:47:06,041 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:47:06,041 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:47:06,041 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:47:06,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:46:52" (3/4) ... [2019-11-15 23:47:06,057 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:47:06,082 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-15 23:47:06,083 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 23:47:06,117 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-15 23:47:06,118 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-15 23:47:06,160 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e699737c-2a31-4961-91ba-5ec4e050f459/bin/uautomizer/witness.graphml [2019-11-15 23:47:06,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:47:06,162 INFO L168 Benchmark]: Toolchain (without parser) took 24380.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 951.0 MB in the beginning and 970.0 MB in the end (delta: -19.0 MB). Peak memory consumption was 128.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:47:06,163 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:47:06,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:47:06,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.57 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:47:06,164 INFO L168 Benchmark]: Boogie Preprocessor took 46.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:47:06,164 INFO L168 Benchmark]: RCFGBuilder took 10210.94 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: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:47:06,164 INFO L168 Benchmark]: TraceAbstraction took 13503.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.5 MB in the end (delta: 114.5 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:47:06,165 INFO L168 Benchmark]: Witness Printer took 119.41 ms. Allocated memory is still 1.2 GB. Free memory was 976.5 MB in the beginning and 970.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:47:06,167 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 439.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.57 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.56 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 10210.94 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: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13503.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.5 MB in the end (delta: 114.5 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 GB. * Witness Printer took 119.41 ms. Allocated memory is still 1.2 GB. Free memory was 976.5 MB in the beginning and 970.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation 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 - 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: 132]: 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: 15]: Loop Invariant [2019-11-15 23:47:06,175 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,175 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,177 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,177 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,177 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (1bv32 == \result && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 60]: Loop Invariant [2019-11-15 23:47:06,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,178 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: 56]: Loop Invariant [2019-11-15 23:47:06,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:47:06,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 13.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 36 SDslu, 139 SDs, 0 SdLazy, 49 SolverSat, 3 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 10.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 50 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 3 QuantifiedInterpolants, 2700 SizeOfPredicates, 14 NumberOfNonLiveVariables, 252 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...