./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/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 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 ................................................................................................................................................................................................................................................................................ 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_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/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 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:28:13,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:28:13,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:28:13,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:28:13,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:28:13,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:28:13,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:28:13,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:28:13,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:28:13,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:28:13,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:28:13,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:28:13,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:28:13,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:28:13,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:28:13,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:28:13,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:28:13,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:28:13,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:28:13,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:28:13,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:28:13,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:28:13,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:28:13,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:28:13,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:28:13,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:28:13,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:28:13,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:28:13,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:28:13,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:28:13,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:28:13,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:28:13,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:28:13,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:28:13,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:28:13,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:28:13,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:28:13,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:28:13,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:28:13,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:28:13,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:28:13,506 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:28:13,532 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:28:13,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:28:13,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:28:13,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:28:13,537 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:28:13,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:28:13,537 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:28:13,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:28:13,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:28:13,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:28:13,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:28:13,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:28:13,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:28:13,538 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:28:13,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:28:13,539 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:28:13,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:28:13,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:28:13,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:28:13,540 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:28:13,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:28:13,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:28:13,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:28:13,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:28:13,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:28:13,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:28:13,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:28:13,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:28:13,542 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_7618a360-6915-4e3b-987e-4aae894135da/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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 [2019-11-15 22:28:13,576 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:28:13,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:28:13,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:28:13,590 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:28:13,591 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:28:13,591 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2019-11-15 22:28:13,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/data/30308720a/850ec852c067458d875c592022b3d824/FLAG5eb8c60a2 [2019-11-15 22:28:14,061 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:28:14,062 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2019-11-15 22:28:14,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/data/30308720a/850ec852c067458d875c592022b3d824/FLAG5eb8c60a2 [2019-11-15 22:28:14,088 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/data/30308720a/850ec852c067458d875c592022b3d824 [2019-11-15 22:28:14,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:28:14,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:28:14,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:28:14,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:28:14,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:28:14,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:28:14" (1/1) ... [2019-11-15 22:28:14,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519b8f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14, skipping insertion in model container [2019-11-15 22:28:14,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:28:14" (1/1) ... [2019-11-15 22:28:14,109 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:28:14,127 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:28:14,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:28:14,369 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:28:14,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:28:14,418 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:28:14,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14 WrapperNode [2019-11-15 22:28:14,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:28:14,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:28:14,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:28:14,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:28:14,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14" (1/1) ... [2019-11-15 22:28:14,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14" (1/1) ... [2019-11-15 22:28:14,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:28:14,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:28:14,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:28:14,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:28:14,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14" (1/1) ... [2019-11-15 22:28:14,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14" (1/1) ... [2019-11-15 22:28:14,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14" (1/1) ... [2019-11-15 22:28:14,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14" (1/1) ... [2019-11-15 22:28:14,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14" (1/1) ... [2019-11-15 22:28:14,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14" (1/1) ... [2019-11-15 22:28:14,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14" (1/1) ... [2019-11-15 22:28:14,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:28:14,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:28:14,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:28:14,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:28:14,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:28:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:28:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 22:28:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:28:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 22:28:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:28:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:28:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:28:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:28:14,954 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:28:14,954 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 22:28:14,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:28:14 BoogieIcfgContainer [2019-11-15 22:28:14,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:28:14,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:28:14,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:28:14,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:28:14,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:28:14" (1/3) ... [2019-11-15 22:28:14,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b77108c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:28:14, skipping insertion in model container [2019-11-15 22:28:14,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:14" (2/3) ... [2019-11-15 22:28:14,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b77108c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:28:14, skipping insertion in model container [2019-11-15 22:28:14,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:28:14" (3/3) ... [2019-11-15 22:28:14,962 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2019-11-15 22:28:14,968 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:28:14,979 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:28:14,988 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:28:15,010 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:28:15,011 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:28:15,011 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:28:15,011 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:28:15,011 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:28:15,011 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:28:15,011 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:28:15,011 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:28:15,026 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-15 22:28:15,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:28:15,033 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:28:15,033 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:28:15,035 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:28:15,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:28:15,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2019-11-15 22:28:15,051 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:28:15,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581676248] [2019-11-15 22:28:15,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:28:15,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:28:15,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:28:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:28:15,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:28:15,137 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581676248] [2019-11-15 22:28:15,137 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:28:15,138 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:28:15,138 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918473485] [2019-11-15 22:28:15,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:28:15,141 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:28:15,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:28:15,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:28:15,155 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-15 22:28:15,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:28:15,169 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2019-11-15 22:28:15,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:28:15,170 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 22:28:15,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:28:15,179 INFO L225 Difference]: With dead ends: 48 [2019-11-15 22:28:15,179 INFO L226 Difference]: Without dead ends: 22 [2019-11-15 22:28:15,182 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:28:15,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-15 22:28:15,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-15 22:28:15,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-15 22:28:15,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-15 22:28:15,216 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2019-11-15 22:28:15,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:28:15,216 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-15 22:28:15,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:28:15,217 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-11-15 22:28:15,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:28:15,217 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:28:15,217 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:28:15,218 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:28:15,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:28:15,218 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2019-11-15 22:28:15,218 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:28:15,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144512601] [2019-11-15 22:28:15,219 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:28:15,219 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:28:15,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:28:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:28:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:28:15,314 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:28:15,315 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:28:15,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:28:15 BoogieIcfgContainer [2019-11-15 22:28:15,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:28:15,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:28:15,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:28:15,342 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:28:15,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:28:14" (3/4) ... [2019-11-15 22:28:15,346 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:28:15,346 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:28:15,348 INFO L168 Benchmark]: Toolchain (without parser) took 1256.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -130.8 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:15,349 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:28:15,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:15,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:28:15,351 INFO L168 Benchmark]: Boogie Preprocessor took 27.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:28:15,351 INFO L168 Benchmark]: RCFGBuilder took 471.32 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: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:15,352 INFO L168 Benchmark]: TraceAbstraction took 385.27 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: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:15,352 INFO L168 Benchmark]: Witness Printer took 4.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:28:15,355 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.73 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 27.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 471.32 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: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 385.27 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: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.88 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 23, overapproximation of someUnaryFLOAToperation at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L75] float x = -0.0f; [L13] __uint32_t w; [L15] int exponent_less_127; [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L25] COND FALSE !(exponent_less_127 < 23) [L41] COND TRUE exponent_less_127 == 128 [L43] return x + x; [L76] float res = round_float(x); [L79] EXPR res == -0.0f && __signbit_float(res) == 1 [L79] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 30 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=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 22:28:17,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:28:17,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:28:17,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:28:17,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:28:17,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:28:17,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:28:17,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:28:17,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:28:17,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:28:17,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:28:17,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:28:17,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:28:17,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:28:17,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:28:17,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:28:17,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:28:17,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:28:17,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:28:17,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:28:17,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:28:17,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:28:17,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:28:17,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:28:17,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:28:17,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:28:17,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:28:17,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:28:17,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:28:17,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:28:17,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:28:17,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:28:17,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:28:17,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:28:17,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:28:17,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:28:17,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:28:17,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:28:17,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:28:17,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:28:17,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:28:17,586 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 22:28:17,613 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:28:17,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:28:17,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:28:17,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:28:17,626 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:28:17,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:28:17,626 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:28:17,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:28:17,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:28:17,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:28:17,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:28:17,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:28:17,628 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 22:28:17,628 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 22:28:17,628 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:28:17,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:28:17,628 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:28:17,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:28:17,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:28:17,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:28:17,629 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:28:17,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:28:17,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:28:17,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:28:17,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:28:17,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:28:17,632 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 22:28:17,632 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 22:28:17,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:28:17,633 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 22:28:17,633 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_7618a360-6915-4e3b-987e-4aae894135da/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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 [2019-11-15 22:28:17,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:28:17,670 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:28:17,673 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:28:17,674 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:28:17,675 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:28:17,675 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2019-11-15 22:28:17,733 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/data/d0a7a0a8d/687ff669bdf04036b38d64e7e668dc70/FLAGf95d5677c [2019-11-15 22:28:18,141 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:28:18,142 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2019-11-15 22:28:18,149 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/data/d0a7a0a8d/687ff669bdf04036b38d64e7e668dc70/FLAGf95d5677c [2019-11-15 22:28:18,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/data/d0a7a0a8d/687ff669bdf04036b38d64e7e668dc70 [2019-11-15 22:28:18,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:28:18,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:28:18,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:28:18,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:28:18,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:28:18,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:28:18" (1/1) ... [2019-11-15 22:28:18,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e767c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18, skipping insertion in model container [2019-11-15 22:28:18,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:28:18" (1/1) ... [2019-11-15 22:28:18,518 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:28:18,539 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:28:18,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:28:18,756 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:28:18,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:28:18,809 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:28:18,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18 WrapperNode [2019-11-15 22:28:18,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:28:18,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:28:18,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:28:18,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:28:18,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18" (1/1) ... [2019-11-15 22:28:18,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18" (1/1) ... [2019-11-15 22:28:18,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:28:18,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:28:18,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:28:18,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:28:18,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18" (1/1) ... [2019-11-15 22:28:18,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18" (1/1) ... [2019-11-15 22:28:18,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18" (1/1) ... [2019-11-15 22:28:18,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18" (1/1) ... [2019-11-15 22:28:18,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18" (1/1) ... [2019-11-15 22:28:18,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18" (1/1) ... [2019-11-15 22:28:18,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18" (1/1) ... [2019-11-15 22:28:18,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:28:18,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:28:18,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:28:18,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:28:18,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:28:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:28:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 22:28:19,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 22:28:19,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:28:19,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:28:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 22:28:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 22:28:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:28:19,440 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:28:19,441 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 22:28:19,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:28:19 BoogieIcfgContainer [2019-11-15 22:28:19,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:28:19,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:28:19,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:28:19,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:28:19,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:28:18" (1/3) ... [2019-11-15 22:28:19,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414635ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:28:19, skipping insertion in model container [2019-11-15 22:28:19,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:28:18" (2/3) ... [2019-11-15 22:28:19,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414635ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:28:19, skipping insertion in model container [2019-11-15 22:28:19,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:28:19" (3/3) ... [2019-11-15 22:28:19,459 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2019-11-15 22:28:19,477 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:28:19,483 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:28:19,496 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:28:19,513 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:28:19,513 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:28:19,514 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:28:19,514 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:28:19,514 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:28:19,514 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:28:19,514 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:28:19,514 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:28:19,526 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-15 22:28:19,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:28:19,532 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:28:19,533 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:28:19,534 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:28:19,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:28:19,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2019-11-15 22:28:19,547 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:28:19,547 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787125525] [2019-11-15 22:28:19,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 22:28:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:28:19,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 22:28:19,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:28:19,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:28:19,650 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:28:19,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:28:19,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787125525] [2019-11-15 22:28:19,656 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:28:19,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 22:28:19,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478847022] [2019-11-15 22:28:19,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:28:19,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:28:19,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:28:19,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:28:19,672 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-15 22:28:19,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:28:19,687 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2019-11-15 22:28:19,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:28:19,688 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 22:28:19,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:28:19,696 INFO L225 Difference]: With dead ends: 48 [2019-11-15 22:28:19,697 INFO L226 Difference]: Without dead ends: 22 [2019-11-15 22:28:19,700 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:28:19,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-15 22:28:19,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-15 22:28:19,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-15 22:28:19,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-15 22:28:19,730 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2019-11-15 22:28:19,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:28:19,730 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-15 22:28:19,731 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:28:19,731 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-11-15 22:28:19,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:28:19,731 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:28:19,732 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:28:19,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 22:28:19,944 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:28:19,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:28:19,945 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2019-11-15 22:28:19,945 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:28:19,945 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639926932] [2019-11-15 22:28:19,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 22:28:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:28:20,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 22:28:20,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:28:20,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:28:20,087 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:28:20,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:28:20,186 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639926932] [2019-11-15 22:28:20,186 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:28:20,186 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 22:28:20,186 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278832270] [2019-11-15 22:28:20,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 22:28:20,188 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:28:20,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 22:28:20,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:28:20,189 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 8 states. [2019-11-15 22:28:20,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:28:20,325 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2019-11-15 22:28:20,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:28:20,326 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-15 22:28:20,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:28:20,327 INFO L225 Difference]: With dead ends: 34 [2019-11-15 22:28:20,327 INFO L226 Difference]: Without dead ends: 20 [2019-11-15 22:28:20,328 INFO L600 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 [2019-11-15 22:28:20,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-15 22:28:20,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-15 22:28:20,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 22:28:20,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-11-15 22:28:20,334 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2019-11-15 22:28:20,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:28:20,334 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-11-15 22:28:20,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 22:28:20,335 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-11-15 22:28:20,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 22:28:20,336 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:28:20,336 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:28:20,549 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 22:28:20,549 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:28:20,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:28:20,550 INFO L82 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2019-11-15 22:28:20,551 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:28:20,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122125216] [2019-11-15 22:28:20,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 22:28:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:28:20,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 22:28:20,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:28:20,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:28:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:28:20,706 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:28:20,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:28:20,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:28:20,800 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122125216] [2019-11-15 22:28:20,800 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:28:20,800 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-15 22:28:20,800 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840486498] [2019-11-15 22:28:20,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 22:28:20,801 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:28:20,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 22:28:20,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:28:20,802 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2019-11-15 22:28:21,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:28:21,080 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-11-15 22:28:21,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:28:21,082 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-11-15 22:28:21,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:28:21,082 INFO L225 Difference]: With dead ends: 23 [2019-11-15 22:28:21,083 INFO L226 Difference]: Without dead ends: 20 [2019-11-15 22:28:21,083 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-11-15 22:28:21,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-15 22:28:21,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-15 22:28:21,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 22:28:21,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2019-11-15 22:28:21,087 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2019-11-15 22:28:21,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:28:21,088 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2019-11-15 22:28:21,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 22:28:21,088 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2019-11-15 22:28:21,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 22:28:21,092 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:28:21,092 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:28:21,304 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 22:28:21,305 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:28:21,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:28:21,305 INFO L82 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2019-11-15 22:28:21,306 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:28:21,306 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825720023] [2019-11-15 22:28:21,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/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 [2019-11-15 22:28:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:28:21,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-15 22:28:21,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:28:21,494 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:28:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:28:21,538 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:28:21,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:28:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:28:22,027 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825720023] [2019-11-15 22:28:22,027 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:28:22,027 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 17 [2019-11-15 22:28:22,027 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599770651] [2019-11-15 22:28:22,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-15 22:28:22,028 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:28:22,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-15 22:28:22,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-11-15 22:28:22,029 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 17 states. [2019-11-15 22:28:22,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:28:22,326 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2019-11-15 22:28:22,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 22:28:22,327 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2019-11-15 22:28:22,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:28:22,328 INFO L225 Difference]: With dead ends: 20 [2019-11-15 22:28:22,328 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:28:22,329 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2019-11-15 22:28:22,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:28:22,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:28:22,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:28:22,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:28:22,330 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-11-15 22:28:22,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:28:22,330 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:28:22,330 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-15 22:28:22,331 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:28:22,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:28:22,544 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 22:28:22,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 22:28:22,863 INFO L439 ceAbstractionStarter]: At program point L64(lines 55 65) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start_round_float_#res|) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) |ULTIMATE.start_main_#t~short8| (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_main_~res~0 .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)) .cse0) (= ULTIMATE.start___signbit_float_~x .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2019-11-15 22:28:22,863 INFO L439 ceAbstractionStarter]: At program point L52(lines 12 53) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start_round_float_#res|) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2019-11-15 22:28:22,863 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 22:28:22,863 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 22:28:22,864 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 22:28:22,864 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2019-11-15 22:28:22,864 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 45) no Hoare annotation was computed. [2019-11-15 22:28:22,864 INFO L443 ceAbstractionStarter]: For program point L33(lines 33 35) no Hoare annotation was computed. [2019-11-15 22:28:22,864 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 22:28:22,864 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 46) no Hoare annotation was computed. [2019-11-15 22:28:22,864 INFO L443 ceAbstractionStarter]: For program point L58-1(lines 58 62) no Hoare annotation was computed. [2019-11-15 22:28:22,865 INFO L439 ceAbstractionStarter]: At program point L58-2(lines 58 62) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start_round_float_#res|) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) |ULTIMATE.start_main_#t~short8| (= ULTIMATE.start_main_~res~0 .cse0) (= ULTIMATE.start___signbit_float_~x .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2019-11-15 22:28:22,865 INFO L443 ceAbstractionStarter]: For program point L58-3(lines 58 62) no Hoare annotation was computed. [2019-11-15 22:28:22,865 INFO L443 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-11-15 22:28:22,865 INFO L439 ceAbstractionStarter]: At program point L17-2(lines 17 21) the Hoare annotation is: (= ULTIMATE.start_round_float_~x (fp.neg (_ +zero 8 24))) [2019-11-15 22:28:22,865 INFO L443 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-15 22:28:22,865 INFO L443 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2019-11-15 22:28:22,866 INFO L443 ceAbstractionStarter]: For program point L79-2(lines 79 82) no Hoare annotation was computed. [2019-11-15 22:28:22,866 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2019-11-15 22:28:22,866 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 39) no Hoare annotation was computed. [2019-11-15 22:28:22,866 INFO L446 ceAbstractionStarter]: At program point L84(lines 67 85) the Hoare annotation is: true [2019-11-15 22:28:22,866 INFO L443 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2019-11-15 22:28:22,867 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 51) no Hoare annotation was computed. [2019-11-15 22:28:22,867 INFO L443 ceAbstractionStarter]: For program point L47-1(lines 12 53) no Hoare annotation was computed. [2019-11-15 22:28:22,867 INFO L443 ceAbstractionStarter]: For program point L47-2(lines 47 51) no Hoare annotation was computed. [2019-11-15 22:28:22,879 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,880 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,880 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,881 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,884 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,884 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,885 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,886 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,886 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,886 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,887 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,887 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,887 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,888 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,889 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,889 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,889 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,889 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,890 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,890 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,891 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,891 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:28:22 BoogieIcfgContainer [2019-11-15 22:28:22,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:28:22,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:28:22,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:28:22,894 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:28:22,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:28:19" (3/4) ... [2019-11-15 22:28:22,899 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:28:22,918 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-15 22:28:22,920 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 22:28:22,920 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 22:28:22,946 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2019-11-15 22:28:22,947 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2019-11-15 22:28:22,947 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2019-11-15 22:28:22,977 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7618a360-6915-4e3b-987e-4aae894135da/bin/uautomizer/witness.graphml [2019-11-15 22:28:22,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:28:22,980 INFO L168 Benchmark]: Toolchain (without parser) took 4482.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 948.3 MB in the beginning and 922.1 MB in the end (delta: 26.2 MB). Peak memory consumption was 179.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:22,980 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:28:22,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.29 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 936.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:22,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -206.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:22,982 INFO L168 Benchmark]: Boogie Preprocessor took 34.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:28:22,982 INFO L168 Benchmark]: RCFGBuilder took 495.32 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:22,983 INFO L168 Benchmark]: TraceAbstraction took 3450.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.6 MB in the end (delta: 188.4 MB). Peak memory consumption was 188.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:22,983 INFO L168 Benchmark]: Witness Printer took 83.59 ms. Allocated memory is still 1.2 GB. Free memory was 928.6 MB in the beginning and 922.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:28:22,986 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.29 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 936.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 101.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -206.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 495.32 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3450.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.6 MB in the end (delta: 188.4 MB). Peak memory consumption was 188.4 MB. Max. memory is 11.5 GB. * Witness Printer took 83.59 ms. Allocated memory is still 1.2 GB. Free memory was 928.6 MB in the beginning and 922.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] * 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: 17]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 55]: Loop Invariant [2019-11-15 22:28:22,993 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 58]: Loop Invariant [2019-11-15 22:28:22,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:22,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 12]: Loop Invariant [2019-11-15 22:28:23,000 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:23,000 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:23,000 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:23,000 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:23,001 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:23,001 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:23,001 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-11-15 22:28:23,002 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Result: SAFE, OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 62 SDtfs, 163 SDslu, 63 SDs, 0 SdLazy, 89 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 158 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 59 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 19 QuantifiedInterpolants, 10036 SizeOfPredicates, 25 NumberOfNonLiveVariables, 138 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...