./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/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 8314f0a25d0cae1024b24eed74020923c3a8036e ..................................................................................................................................................................................................................................................................................... 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_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/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 8314f0a25d0cae1024b24eed74020923c3a8036e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 01:36:25,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:36:25,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:36:25,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:36:25,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:36:25,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:36:25,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:36:25,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:36:25,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:36:25,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:36:25,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:36:25,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:36:25,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:36:25,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:36:25,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:36:25,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:36:25,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:36:25,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:36:25,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:36:25,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:36:25,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:36:25,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:36:25,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:36:25,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:36:25,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:36:25,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:36:25,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:36:25,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:36:25,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:36:25,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:36:25,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:36:25,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:36:25,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:36:25,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:36:25,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:36:25,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:36:25,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:36:25,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:36:25,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:36:25,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:36:25,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:36:25,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 01:36:25,369 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:36:25,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:36:25,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:36:25,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:36:25,371 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:36:25,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:36:25,372 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:36:25,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:36:25,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:36:25,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:36:25,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:36:25,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:36:25,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:36:25,374 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:36:25,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:36:25,374 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:36:25,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:36:25,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:36:25,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:36:25,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:36:25,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:36:25,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:36:25,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:36:25,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:36:25,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:36:25,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:36:25,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:36:25,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:36:25,380 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_af52a6af-9a0b-4cce-883b-0822a77b2be9/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 -> 8314f0a25d0cae1024b24eed74020923c3a8036e [2019-11-20 01:36:25,516 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:36:25,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:36:25,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:36:25,531 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:36:25,531 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:36:25,532 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2019-11-20 01:36:25,584 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/data/a92292d9d/f5c7f7cbd39c4b01a597add1711df5d5/FLAG3372812c2 [2019-11-20 01:36:26,003 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:36:26,004 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2019-11-20 01:36:26,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/data/a92292d9d/f5c7f7cbd39c4b01a597add1711df5d5/FLAG3372812c2 [2019-11-20 01:36:26,377 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/data/a92292d9d/f5c7f7cbd39c4b01a597add1711df5d5 [2019-11-20 01:36:26,380 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:36:26,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:36:26,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:36:26,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:36:26,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:36:26,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:36:26" (1/1) ... [2019-11-20 01:36:26,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe72269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26, skipping insertion in model container [2019-11-20 01:36:26,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:36:26" (1/1) ... [2019-11-20 01:36:26,397 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:36:26,417 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:36:26,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:36:26,594 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:36:26,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:36:26,703 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:36:26,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26 WrapperNode [2019-11-20 01:36:26,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:36:26,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:36:26,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:36:26,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:36:26,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26" (1/1) ... [2019-11-20 01:36:26,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26" (1/1) ... [2019-11-20 01:36:26,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:36:26,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:36:26,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:36:26,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:36:26,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26" (1/1) ... [2019-11-20 01:36:26,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26" (1/1) ... [2019-11-20 01:36:26,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26" (1/1) ... [2019-11-20 01:36:26,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26" (1/1) ... [2019-11-20 01:36:26,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26" (1/1) ... [2019-11-20 01:36:26,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26" (1/1) ... [2019-11-20 01:36:26,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26" (1/1) ... [2019-11-20 01:36:26,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:36:26,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:36:26,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:36:26,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:36:26,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/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 [2019-11-20 01:36:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 01:36:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 01:36:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 01:36:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:36:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:36:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 01:36:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:36:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:36:27,197 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:36:27,198 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-20 01:36:27,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:36:27 BoogieIcfgContainer [2019-11-20 01:36:27,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:36:27,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:36:27,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:36:27,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:36:27,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:36:26" (1/3) ... [2019-11-20 01:36:27,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68539d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:36:27, skipping insertion in model container [2019-11-20 01:36:27,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:26" (2/3) ... [2019-11-20 01:36:27,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68539d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:36:27, skipping insertion in model container [2019-11-20 01:36:27,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:36:27" (3/3) ... [2019-11-20 01:36:27,206 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d.c [2019-11-20 01:36:27,215 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:36:27,222 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 01:36:27,230 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 01:36:27,254 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:36:27,254 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:36:27,254 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:36:27,256 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:36:27,256 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:36:27,256 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:36:27,256 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:36:27,256 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:36:27,274 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-20 01:36:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 01:36:27,279 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:36:27,280 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:36:27,280 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:36:27,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:36:27,286 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2019-11-20 01:36:27,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:36:27,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930209779] [2019-11-20 01:36:27,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:36:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:36:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:36:27,381 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930209779] [2019-11-20 01:36:27,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:36:27,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 01:36:27,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456514253] [2019-11-20 01:36:27,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 01:36:27,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:36:27,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 01:36:27,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 01:36:27,397 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-20 01:36:27,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:36:27,411 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2019-11-20 01:36:27,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 01:36:27,413 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 01:36:27,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:36:27,420 INFO L225 Difference]: With dead ends: 58 [2019-11-20 01:36:27,420 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 01:36:27,423 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 01:36:27,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 01:36:27,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-20 01:36:27,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 01:36:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-11-20 01:36:27,450 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2019-11-20 01:36:27,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:36:27,450 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-20 01:36:27,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 01:36:27,450 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-11-20 01:36:27,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 01:36:27,451 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:36:27,451 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:36:27,452 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:36:27,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:36:27,452 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2019-11-20 01:36:27,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:36:27,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283507189] [2019-11-20 01:36:27,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:36:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:36:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:36:27,571 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:36:27,572 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 01:36:27,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:36:27 BoogieIcfgContainer [2019-11-20 01:36:27,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:36:27,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:36:27,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:36:27,610 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:36:27,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:36:27" (3/4) ... [2019-11-20 01:36:27,613 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 01:36:27,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:36:27,617 INFO L168 Benchmark]: Toolchain (without parser) took 1233.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -142.0 MB). Peak memory consumption was 622.6 kB. Max. memory is 11.5 GB. [2019-11-20 01:36:27,618 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:36:27,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:36:27,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.34 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. [2019-11-20 01:36:27,620 INFO L168 Benchmark]: Boogie Preprocessor took 30.29 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:36:27,621 INFO L168 Benchmark]: RCFGBuilder took 426.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:36:27,622 INFO L168 Benchmark]: TraceAbstraction took 408.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:36:27,622 INFO L168 Benchmark]: Witness Printer took 4.94 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. [2019-11-20 01:36:27,630 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 321.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.34 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. * Boogie Preprocessor took 30.29 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 426.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 408.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.94 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: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L75] float x = 0.0f; [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] return x; VAL [huge_floor=1000000000000000000000000000000] [L76] float res = floor_float(x); [L79] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_floor=1000000000000000000000000000000] [L79] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L80] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 39 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=30occurred 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 0.1.24-678e011 [2019-11-20 01:36:29,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:36:29,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:36:29,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:36:29,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:36:29,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:36:29,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:36:29,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:36:29,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:36:29,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:36:29,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:36:29,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:36:29,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:36:29,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:36:29,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:36:29,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:36:29,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:36:29,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:36:29,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:36:29,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:36:29,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:36:29,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:36:29,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:36:29,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:36:29,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:36:29,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:36:29,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:36:29,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:36:29,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:36:29,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:36:29,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:36:29,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:36:29,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:36:29,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:36:29,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:36:29,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:36:29,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:36:29,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:36:29,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:36:29,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:36:29,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:36:29,592 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 01:36:29,607 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:36:29,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:36:29,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:36:29,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:36:29,609 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:36:29,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:36:29,609 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:36:29,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:36:29,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:36:29,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:36:29,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:36:29,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:36:29,611 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 01:36:29,611 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 01:36:29,611 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:36:29,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:36:29,612 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:36:29,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:36:29,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:36:29,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:36:29,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:36:29,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:36:29,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:36:29,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:36:29,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:36:29,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:36:29,615 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 01:36:29,615 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 01:36:29,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:36:29,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 01:36:29,616 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_af52a6af-9a0b-4cce-883b-0822a77b2be9/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 -> 8314f0a25d0cae1024b24eed74020923c3a8036e [2019-11-20 01:36:29,903 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:36:29,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:36:29,915 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:36:29,917 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:36:29,917 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:36:29,918 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2019-11-20 01:36:29,971 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/data/33cb8addf/f1ce12a92b6c483e87a47237239d9357/FLAG39809af91 [2019-11-20 01:36:30,383 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:36:30,383 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2019-11-20 01:36:30,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/data/33cb8addf/f1ce12a92b6c483e87a47237239d9357/FLAG39809af91 [2019-11-20 01:36:30,777 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/data/33cb8addf/f1ce12a92b6c483e87a47237239d9357 [2019-11-20 01:36:30,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:36:30,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:36:30,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:36:30,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:36:30,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:36:30,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:36:30" (1/1) ... [2019-11-20 01:36:30,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60d40b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:30, skipping insertion in model container [2019-11-20 01:36:30,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:36:30" (1/1) ... [2019-11-20 01:36:30,808 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:36:30,822 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:36:31,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:36:31,007 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:36:31,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:36:31,060 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:36:31,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:31 WrapperNode [2019-11-20 01:36:31,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:36:31,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:36:31,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:36:31,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:36:31,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:31" (1/1) ... [2019-11-20 01:36:31,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:31" (1/1) ... [2019-11-20 01:36:31,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:36:31,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:36:31,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:36:31,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:36:31,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:31" (1/1) ... [2019-11-20 01:36:31,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:31" (1/1) ... [2019-11-20 01:36:31,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:31" (1/1) ... [2019-11-20 01:36:31,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:31" (1/1) ... [2019-11-20 01:36:31,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:31" (1/1) ... [2019-11-20 01:36:31,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:31" (1/1) ... [2019-11-20 01:36:31,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:31" (1/1) ... [2019-11-20 01:36:31,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:36:31,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:36:31,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:36:31,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:36:31,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/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 [2019-11-20 01:36:31,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 01:36:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:36:31,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:36:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 01:36:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:36:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 01:36:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 01:36:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:36:31,884 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:36:31,884 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-20 01:36:31,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:36:31 BoogieIcfgContainer [2019-11-20 01:36:31,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:36:31,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:36:31,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:36:31,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:36:31,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:36:30" (1/3) ... [2019-11-20 01:36:31,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d6b472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:36:31, skipping insertion in model container [2019-11-20 01:36:31,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:36:31" (2/3) ... [2019-11-20 01:36:31,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d6b472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:36:31, skipping insertion in model container [2019-11-20 01:36:31,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:36:31" (3/3) ... [2019-11-20 01:36:31,892 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d.c [2019-11-20 01:36:31,899 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:36:31,904 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 01:36:31,911 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 01:36:31,930 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:36:31,930 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:36:31,930 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:36:31,931 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:36:31,931 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:36:31,931 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:36:31,931 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:36:31,931 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:36:31,944 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-20 01:36:31,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 01:36:31,951 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:36:31,951 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:36:31,952 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:36:31,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:36:31,957 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2019-11-20 01:36:31,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:36:31,964 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781001261] [2019-11-20 01:36:31,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/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 [2019-11-20 01:36:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:36:32,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 01:36:32,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:36:32,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:36:32,043 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:36:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:36:32,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781001261] [2019-11-20 01:36:32,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:36:32,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 01:36:32,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531435104] [2019-11-20 01:36:32,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 01:36:32,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:36:32,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 01:36:32,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 01:36:32,064 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-20 01:36:32,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:36:32,082 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2019-11-20 01:36:32,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 01:36:32,083 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 01:36:32,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:36:32,092 INFO L225 Difference]: With dead ends: 58 [2019-11-20 01:36:32,092 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 01:36:32,095 INFO L630 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 [2019-11-20 01:36:32,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 01:36:32,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-20 01:36:32,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 01:36:32,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-11-20 01:36:32,125 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2019-11-20 01:36:32,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:36:32,126 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-20 01:36:32,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 01:36:32,126 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-11-20 01:36:32,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 01:36:32,127 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:36:32,127 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:36:32,340 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 01:36:32,340 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:36:32,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:36:32,341 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2019-11-20 01:36:32,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:36:32,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339658126] [2019-11-20 01:36:32,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/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 [2019-11-20 01:36:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:36:32,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 01:36:32,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:36:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:36:32,489 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:36:32,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:36:32,570 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339658126] [2019-11-20 01:36:32,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:36:32,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 01:36:32,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373208284] [2019-11-20 01:36:32,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 01:36:32,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:36:32,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 01:36:32,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 01:36:32,573 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2019-11-20 01:36:32,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:36:32,727 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2019-11-20 01:36:32,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 01:36:32,730 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-20 01:36:32,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:36:32,731 INFO L225 Difference]: With dead ends: 39 [2019-11-20 01:36:32,731 INFO L226 Difference]: Without dead ends: 21 [2019-11-20 01:36:32,732 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-20 01:36:32,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-20 01:36:32,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-20 01:36:32,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-20 01:36:32,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-20 01:36:32,738 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2019-11-20 01:36:32,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:36:32,739 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-20 01:36:32,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 01:36:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-20 01:36:32,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 01:36:32,741 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:36:32,744 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:36:32,957 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 01:36:32,957 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:36:32,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:36:32,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2019-11-20 01:36:32,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:36:32,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341122804] [2019-11-20 01:36:32,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/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 [2019-11-20 01:36:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:36:33,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 01:36:33,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:36:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:36:33,074 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:36:33,350 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-11-20 01:36:33,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:36:33,502 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341122804] [2019-11-20 01:36:33,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:36:33,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-20 01:36:33,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421282572] [2019-11-20 01:36:33,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 01:36:33,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:36:33,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 01:36:33,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 01:36:33,503 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2019-11-20 01:36:33,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:36:33,785 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-11-20 01:36:33,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 01:36:33,788 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-20 01:36:33,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:36:33,789 INFO L225 Difference]: With dead ends: 33 [2019-11-20 01:36:33,789 INFO L226 Difference]: Without dead ends: 21 [2019-11-20 01:36:33,790 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 01:36:33,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-20 01:36:33,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-20 01:36:33,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-20 01:36:33,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-11-20 01:36:33,794 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2019-11-20 01:36:33,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:36:33,794 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-11-20 01:36:33,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 01:36:33,795 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-11-20 01:36:33,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 01:36:33,796 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:36:33,796 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:36:34,009 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 01:36:34,015 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:36:34,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:36:34,015 INFO L82 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2019-11-20 01:36:34,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:36:34,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107711929] [2019-11-20 01:36:34,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-20 01:36:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:36:34,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 01:36:34,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:36:34,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:36:34,133 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:36:34,135 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:36:34,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:36:34,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107711929] [2019-11-20 01:36:34,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:36:34,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-20 01:36:34,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228556747] [2019-11-20 01:36:34,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 01:36:34,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:36:34,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 01:36:34,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-20 01:36:34,203 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 9 states. [2019-11-20 01:36:34,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:36:34,349 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-11-20 01:36:34,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 01:36:34,350 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2019-11-20 01:36:34,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:36:34,351 INFO L225 Difference]: With dead ends: 24 [2019-11-20 01:36:34,351 INFO L226 Difference]: Without dead ends: 21 [2019-11-20 01:36:34,351 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2019-11-20 01:36:34,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-20 01:36:34,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-20 01:36:34,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-20 01:36:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2019-11-20 01:36:34,356 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2019-11-20 01:36:34,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:36:34,357 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2019-11-20 01:36:34,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 01:36:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2019-11-20 01:36:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 01:36:34,358 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:36:34,358 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:36:34,572 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 01:36:34,573 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:36:34,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:36:34,573 INFO L82 PathProgramCache]: Analyzing trace with hash -733783834, now seen corresponding path program 1 times [2019-11-20 01:36:34,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:36:34,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426056093] [2019-11-20 01:36:34,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-20 01:36:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:36:34,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 01:36:34,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:36:34,737 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:36:34,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:36:34,772 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:36:34,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:36:34,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:36:34,983 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426056093] [2019-11-20 01:36:34,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:36:34,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2019-11-20 01:36:34,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70192865] [2019-11-20 01:36:34,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-20 01:36:34,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:36:34,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-20 01:36:34,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2019-11-20 01:36:34,985 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 16 states. [2019-11-20 01:36:35,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:36:35,341 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-11-20 01:36:35,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 01:36:35,341 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2019-11-20 01:36:35,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:36:35,342 INFO L225 Difference]: With dead ends: 21 [2019-11-20 01:36:35,342 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 01:36:35,344 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2019-11-20 01:36:35,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 01:36:35,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 01:36:35,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 01:36:35,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 01:36:35,345 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-11-20 01:36:35,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:36:35,345 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:36:35,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-20 01:36:35,345 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 01:36:35,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 01:36:35,548 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-20 01:36:35,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 01:36:35,848 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2019-11-20 01:36:35,848 INFO L444 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2019-11-20 01:36:35,848 INFO L444 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2019-11-20 01:36:35,848 INFO L444 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2019-11-20 01:36:35,848 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2019-11-20 01:36:35,849 INFO L440 ceAbstractionStarter]: At program point L65(lines 56 66) the Hoare annotation is: (let ((.cse0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) |ULTIMATE.start_main_#t~short8| (= |ULTIMATE.start_floor_float_#res| .cse0) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= .cse0 ULTIMATE.start_main_~res~0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_floor_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (_ +zero 8 24)))) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (_ +zero 8 24)) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0) (= .cse0 ULTIMATE.start_floor_float_~x))) [2019-11-20 01:36:35,849 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 01:36:35,849 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 01:36:35,849 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 01:36:35,849 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2019-11-20 01:36:35,849 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2019-11-20 01:36:35,849 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2019-11-20 01:36:35,850 INFO L440 ceAbstractionStarter]: At program point L53(lines 13 54) the Hoare annotation is: (let ((.cse0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_floor_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (_ +zero 8 24)))) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (_ +zero 8 24)) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0) (= .cse0 ULTIMATE.start_floor_float_~x))) [2019-11-20 01:36:35,850 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-20 01:36:35,850 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0) (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_floor_float_~x)) [2019-11-20 01:36:35,850 INFO L444 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2019-11-20 01:36:35,850 INFO L444 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2019-11-20 01:36:35,850 INFO L444 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2019-11-20 01:36:35,851 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 01:36:35,851 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-11-20 01:36:35,851 INFO L444 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-20 01:36:35,851 INFO L444 ceAbstractionStarter]: For program point L79-2(lines 79 82) no Hoare annotation was computed. [2019-11-20 01:36:35,851 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-20 01:36:35,851 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2019-11-20 01:36:35,851 INFO L444 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2019-11-20 01:36:35,852 INFO L440 ceAbstractionStarter]: At program point L59-2(lines 59 63) the Hoare annotation is: (let ((.cse0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 ULTIMATE.start___signbit_float_~x) |ULTIMATE.start_main_#t~short8| (= |ULTIMATE.start_floor_float_#res| .cse0) (= .cse0 ULTIMATE.start_main_~res~0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_floor_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (_ +zero 8 24)))) (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (_ +zero 8 24)) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0) (= .cse0 ULTIMATE.start_floor_float_~x))) [2019-11-20 01:36:35,852 INFO L444 ceAbstractionStarter]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2019-11-20 01:36:35,852 INFO L447 ceAbstractionStarter]: At program point L84(lines 68 85) the Hoare annotation is: true [2019-11-20 01:36:35,852 INFO L444 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2019-11-20 01:36:35,852 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2019-11-20 01:36:35,857 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,858 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,858 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,858 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,867 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,868 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,868 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,868 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,868 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,869 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,870 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,872 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,872 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,873 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,873 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,874 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,874 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,874 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,874 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,875 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,876 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,876 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,876 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,877 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,877 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,878 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,878 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,878 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,878 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,879 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,880 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,880 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,880 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,880 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,881 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:36:35 BoogieIcfgContainer [2019-11-20 01:36:35,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:36:35,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:36:35,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:36:35,884 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:36:35,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:36:31" (3/4) ... [2019-11-20 01:36:35,888 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 01:36:35,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-20 01:36:35,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 01:36:35,900 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 01:36:35,926 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x [2019-11-20 01:36:35,927 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == res) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x [2019-11-20 01:36:35,927 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && \result == 0bv32) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == res) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x [2019-11-20 01:36:35,953 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_af52a6af-9a0b-4cce-883b-0822a77b2be9/bin/uautomizer/witness.graphml [2019-11-20 01:36:35,953 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:36:35,954 INFO L168 Benchmark]: Toolchain (without parser) took 5166.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 960.4 MB in the beginning and 914.9 MB in the end (delta: 45.5 MB). Peak memory consumption was 205.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:36:35,955 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:36:35,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.08 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 944.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-20 01:36:35,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 944.3 MB in the beginning and 1.2 GB in the end (delta: -212.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-20 01:36:35,956 INFO L168 Benchmark]: Boogie Preprocessor took 33.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:36:35,957 INFO L168 Benchmark]: RCFGBuilder took 701.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-20 01:36:35,957 INFO L168 Benchmark]: TraceAbstraction took 3997.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 921.4 MB in the end (delta: 202.7 MB). Peak memory consumption was 202.7 MB. Max. memory is 11.5 GB. [2019-11-20 01:36:35,957 INFO L168 Benchmark]: Witness Printer took 69.30 ms. Allocated memory is still 1.2 GB. Free memory was 921.4 MB in the beginning and 914.9 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:36:35,959 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.08 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 944.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 944.3 MB in the beginning and 1.2 GB in the end (delta: -212.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 701.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3997.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 921.4 MB in the end (delta: 202.7 MB). Peak memory consumption was 202.7 MB. Max. memory is 11.5 GB. * Witness Printer took 69.30 ms. Allocated memory is still 1.2 GB. Free memory was 921.4 MB in the beginning and 914.9 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - 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: 80]: 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: 13]: Loop Invariant [2019-11-20 01:36:35,969 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,970 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,970 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,970 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,971 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,973 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,973 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x - InvariantResult [Line: 56]: Loop Invariant [2019-11-20 01:36:35,974 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,974 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,974 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,975 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,975 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,975 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,976 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,976 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,977 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,977 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && \result == 0bv32) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == res) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x - InvariantResult [Line: 16]: Loop Invariant [2019-11-20 01:36:35,978 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x - InvariantResult [Line: 59]: Loop Invariant [2019-11-20 01:36:35,980 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,980 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,980 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,981 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,981 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,981 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,982 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,982 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,982 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,983 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2019-11-20 01:36:35,983 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:36:35,983 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == res) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: SAFE, OverallTime: 3.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 90 SDtfs, 216 SDslu, 78 SDs, 0 SdLazy, 112 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 203 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 21 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 134 ConstructedInterpolants, 8 QuantifiedInterpolants, 7848 SizeOfPredicates, 25 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...