./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c9cffacfd3e6caa748d273206d3a84e636fe987 .................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c9cffacfd3e6caa748d273206d3a84e636fe987 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:26:25,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:25,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:25,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:25,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:25,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:25,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:25,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:25,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:25,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:25,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:25,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:25,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:25,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:25,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:25,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:25,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:25,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:25,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:25,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:25,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:25,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:25,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:25,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:25,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:25,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:25,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:25,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:25,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:25,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:25,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:25,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:25,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:25,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:25,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:25,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:25,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:25,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:25,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:25,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:25,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:25,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:26:25,416 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:25,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:25,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:25,417 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:25,417 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:25,417 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:25,417 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:25,418 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:25,418 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:25,418 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:25,418 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:25,418 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:25,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:25,419 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:25,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:25,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:25,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:25,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:25,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:25,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:25,420 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:25,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:25,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:25,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:25,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:25,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:25,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:25,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:25,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:25,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:25,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:25,422 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:25,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:25,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:25,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:25,424 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2019-10-22 11:26:25,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:25,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:25,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:25,480 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:25,481 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:25,482 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-10-22 11:26:25,524 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/data/2ea0a6ee8/30bb221becbd4eb8b686949c3baf9926/FLAG93783c84a [2019-10-22 11:26:25,931 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:25,931 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-10-22 11:26:25,936 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/data/2ea0a6ee8/30bb221becbd4eb8b686949c3baf9926/FLAG93783c84a [2019-10-22 11:26:25,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/data/2ea0a6ee8/30bb221becbd4eb8b686949c3baf9926 [2019-10-22 11:26:25,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:25,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:25,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:25,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:25,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:25,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:25" (1/1) ... [2019-10-22 11:26:25,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a2358f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:25, skipping insertion in model container [2019-10-22 11:26:25,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:25" (1/1) ... [2019-10-22 11:26:25,962 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:25,979 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:26,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:26,192 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:26,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:26,240 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:26,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:26 WrapperNode [2019-10-22 11:26:26,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:26,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:26,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:26,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:26,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:26" (1/1) ... [2019-10-22 11:26:26,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:26" (1/1) ... [2019-10-22 11:26:26,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:26,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:26,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:26,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:26,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:26" (1/1) ... [2019-10-22 11:26:26,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:26" (1/1) ... [2019-10-22 11:26:26,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:26" (1/1) ... [2019-10-22 11:26:26,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:26" (1/1) ... [2019-10-22 11:26:26,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:26" (1/1) ... [2019-10-22 11:26:26,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:26" (1/1) ... [2019-10-22 11:26:26,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:26" (1/1) ... [2019-10-22 11:26:26,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:26,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:26,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:26,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:26,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:26:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:26:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 11:26:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 11:26:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:26,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:26:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-10-22 11:26:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:26:26,652 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:26,652 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 11:26:26,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:26 BoogieIcfgContainer [2019-10-22 11:26:26,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:26,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:26,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:26,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:26,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:25" (1/3) ... [2019-10-22 11:26:26,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421d1e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:26, skipping insertion in model container [2019-10-22 11:26:26,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:26" (2/3) ... [2019-10-22 11:26:26,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421d1e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:26, skipping insertion in model container [2019-10-22 11:26:26,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:26" (3/3) ... [2019-10-22 11:26:26,660 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2019-10-22 11:26:26,668 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:26,677 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:26:26,689 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:26:26,711 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:26,711 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:26:26,711 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:26,711 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:26,712 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:26,712 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:26,712 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:26,712 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:26,723 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-10-22 11:26:26,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:26:26,728 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:26,729 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:26,730 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:26,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:26,734 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-10-22 11:26:26,741 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:26,741 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897508379] [2019-10-22 11:26:26,741 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:26,742 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:26,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:26,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:26,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897508379] [2019-10-22 11:26:26,864 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:26,864 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:26:26,865 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786061963] [2019-10-22 11:26:26,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:26:26,870 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:26,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:26:26,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:26:26,881 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-10-22 11:26:26,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:26,895 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-10-22 11:26:26,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:26:26,896 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-10-22 11:26:26,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:26,906 INFO L225 Difference]: With dead ends: 70 [2019-10-22 11:26:26,906 INFO L226 Difference]: Without dead ends: 33 [2019-10-22 11:26:26,909 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:26:26,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-22 11:26:26,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-10-22 11:26:26,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-22 11:26:26,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-10-22 11:26:26,940 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-10-22 11:26:26,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:26,941 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-10-22 11:26:26,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:26:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-10-22 11:26:26,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:26:26,941 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:26,942 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:26,942 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:26,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:26,942 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-10-22 11:26:26,942 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:26,943 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912193835] [2019-10-22 11:26:26,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:26,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:26,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:27,054 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:26:27,057 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:26:27,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:27 BoogieIcfgContainer [2019-10-22 11:26:27,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:27,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:27,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:27,095 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:27,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:26" (3/4) ... [2019-10-22 11:26:27,101 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:26:27,101 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:27,103 INFO L168 Benchmark]: Toolchain (without parser) took 1152.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 944.5 MB in the beginning and 1.0 GB in the end (delta: -99.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:27,104 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:27,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:27,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.21 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:27,105 INFO L168 Benchmark]: Boogie Preprocessor took 35.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:27,105 INFO L168 Benchmark]: RCFGBuilder took 338.92 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: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:27,106 INFO L168 Benchmark]: TraceAbstraction took 439.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:27,106 INFO L168 Benchmark]: Witness Printer took 6.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:27,109 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.21 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.48 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 338.92 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: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 439.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. * Witness Printer took 6.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float x = -0.0f; [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L122] __VERIFIER_error() VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 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=36occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:26:29,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:29,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:29,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:29,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:29,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:29,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:29,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:29,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:29,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:29,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:29,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:29,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:29,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:29,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:29,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:29,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:29,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:29,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:29,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:29,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:29,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:29,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:29,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:29,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:29,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:29,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:29,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:29,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:29,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:29,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:29,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:29,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:29,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:29,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:29,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:29,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:29,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:29,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:29,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:29,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:29,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:26:29,229 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:29,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:29,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:29,230 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:29,231 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:29,231 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:29,231 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:29,231 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:29,231 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:29,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:29,232 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:29,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:29,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:29,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:29,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:29,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:29,233 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:26:29,233 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:26:29,233 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:29,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:29,233 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:26:29,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:29,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:29,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:29,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:29,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:29,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:29,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:29,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:29,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:29,235 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:26:29,235 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:26:29,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:29,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:29,236 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2019-10-22 11:26:29,262 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:29,272 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:29,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:29,276 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:29,276 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:29,277 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-10-22 11:26:29,333 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/data/cce11a77f/3d64630b719845ea8bbe77712c7c641c/FLAGdbefa8468 [2019-10-22 11:26:29,723 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:29,724 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2019-10-22 11:26:29,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/data/cce11a77f/3d64630b719845ea8bbe77712c7c641c/FLAGdbefa8468 [2019-10-22 11:26:30,105 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/data/cce11a77f/3d64630b719845ea8bbe77712c7c641c [2019-10-22 11:26:30,107 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:30,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:30,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:30,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:30,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:30,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b5f703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30, skipping insertion in model container [2019-10-22 11:26:30,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,124 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:30,140 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:30,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:30,325 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:30,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:30,445 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:30,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30 WrapperNode [2019-10-22 11:26:30,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:30,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:30,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:30,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:30,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:30,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:30,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:30,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:30,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:30,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:30,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:30,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:30,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:30,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-10-22 11:26:30,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:26:30,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-10-22 11:26:30,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 11:26:30,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:30,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:30,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-10-22 11:26:30,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:26:30,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:26:38,249 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:38,249 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 11:26:38,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:38 BoogieIcfgContainer [2019-10-22 11:26:38,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:38,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:38,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:38,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:38,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:30" (1/3) ... [2019-10-22 11:26:38,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542fc6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:38, skipping insertion in model container [2019-10-22 11:26:38,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30" (2/3) ... [2019-10-22 11:26:38,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542fc6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:38, skipping insertion in model container [2019-10-22 11:26:38,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:38" (3/3) ... [2019-10-22 11:26:38,254 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2019-10-22 11:26:38,261 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:38,266 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:26:38,274 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:26:38,293 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:38,293 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:26:38,293 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:38,293 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:38,294 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:38,294 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:38,294 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:38,294 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-10-22 11:26:38,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:26:38,310 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:38,311 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:38,312 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:38,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:38,316 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-10-22 11:26:38,322 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:38,323 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611929580] [2019-10-22 11:26:38,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-10-22 11:26:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:38,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:26:38,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:38,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:38,447 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:38,453 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611929580] [2019-10-22 11:26:38,453 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:38,454 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:26:38,454 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21088809] [2019-10-22 11:26:38,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:26:38,459 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:38,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:26:38,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:26:38,471 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-10-22 11:26:38,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:38,488 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-10-22 11:26:38,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:26:38,489 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-10-22 11:26:38,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:38,499 INFO L225 Difference]: With dead ends: 70 [2019-10-22 11:26:38,499 INFO L226 Difference]: Without dead ends: 33 [2019-10-22 11:26:38,502 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:26:38,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-22 11:26:38,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-10-22 11:26:38,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-22 11:26:38,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-10-22 11:26:38,530 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-10-22 11:26:38,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:38,530 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-10-22 11:26:38,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:26:38,530 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-10-22 11:26:38,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:26:38,531 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:38,531 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:38,732 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:26:38,732 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:38,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:38,733 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-10-22 11:26:38,733 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:38,733 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392967665] [2019-10-22 11:26:38,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-10-22 11:26:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:38,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:26:38,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:38,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:38,909 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:38,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:38,978 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392967665] [2019-10-22 11:26:38,979 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:38,979 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:26:38,979 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102538522] [2019-10-22 11:26:38,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:26:38,981 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:38,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:26:38,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:26:38,981 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 8 states. [2019-10-22 11:26:42,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:42,653 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2019-10-22 11:26:42,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:26:42,714 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-10-22 11:26:42,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:42,715 INFO L225 Difference]: With dead ends: 50 [2019-10-22 11:26:42,715 INFO L226 Difference]: Without dead ends: 29 [2019-10-22 11:26:42,716 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:26:42,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-22 11:26:42,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-10-22 11:26:42,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-22 11:26:42,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-10-22 11:26:42,723 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2019-10-22 11:26:42,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:42,723 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-10-22 11:26:42,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:26:42,724 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-10-22 11:26:42,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 11:26:42,724 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:42,724 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:42,925 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 11:26:42,925 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:42,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:42,926 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2019-10-22 11:26:42,926 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:42,926 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252936306] [2019-10-22 11:26:42,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/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 [2019-10-22 11:26:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:43,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:26:43,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:43,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:43,147 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:43,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:43,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252936306] [2019-10-22 11:26:43,792 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:43,792 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2019-10-22 11:26:43,792 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561925594] [2019-10-22 11:26:43,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:26:43,793 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:43,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:26:43,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:26:43,794 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 7 states. [2019-10-22 11:26:47,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:47,796 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-10-22 11:26:47,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:26:47,796 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-10-22 11:26:47,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:47,797 INFO L225 Difference]: With dead ends: 33 [2019-10-22 11:26:47,797 INFO L226 Difference]: Without dead ends: 29 [2019-10-22 11:26:47,798 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:26:47,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-22 11:26:47,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-10-22 11:26:47,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-22 11:26:47,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-10-22 11:26:47,802 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2019-10-22 11:26:47,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:47,802 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-10-22 11:26:47,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:26:47,802 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-10-22 11:26:47,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:26:47,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:47,803 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:48,003 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 11:26:48,004 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:48,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:48,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2019-10-22 11:26:48,005 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:48,005 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487564820] [2019-10-22 11:26:48,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/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 [2019-10-22 11:26:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:48,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:26:48,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:48,836 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:49,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:49,211 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487564820] [2019-10-22 11:26:49,211 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:49,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-10-22 11:26:49,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970050058] [2019-10-22 11:26:49,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:26:49,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:49,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:26:49,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:26:49,213 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2019-10-22 11:26:49,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:49,283 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-10-22 11:26:49,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:26:49,285 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-10-22 11:26:49,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:49,286 INFO L225 Difference]: With dead ends: 29 [2019-10-22 11:26:49,286 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:26:49,286 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:26:49,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:26:49,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:26:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:26:49,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:26:49,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-22 11:26:49,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:49,287 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:26:49,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:26:49,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:26:49,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:26:49,499 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-10-22 11:26:49,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:26:49,578 INFO L446 ceAbstractionStarter]: At program point L126(lines 111 127) the Hoare annotation is: true [2019-10-22 11:26:49,578 INFO L443 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-10-22 11:26:49,578 INFO L443 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2019-10-22 11:26:49,578 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-10-22 11:26:49,578 INFO L443 ceAbstractionStarter]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2019-10-22 11:26:49,578 INFO L443 ceAbstractionStarter]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2019-10-22 11:26:49,579 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:26:49,579 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:26:49,579 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2019-10-22 11:26:49,579 INFO L443 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-10-22 11:26:49,579 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-10-22 11:26:49,579 INFO L443 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2019-10-22 11:26:49,579 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2019-10-22 11:26:49,579 INFO L443 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-10-22 11:26:49,580 INFO L443 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-10-22 11:26:49,580 INFO L443 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-10-22 11:26:49,580 INFO L439 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-10-22 11:26:49,580 INFO L443 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2019-10-22 11:26:49,580 INFO L443 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2019-10-22 11:26:49,580 INFO L443 ceAbstractionStarter]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2019-10-22 11:26:49,580 INFO L443 ceAbstractionStarter]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2019-10-22 11:26:49,580 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:26:49,581 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2019-10-22 11:26:49,581 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-10-22 11:26:49,581 INFO L439 ceAbstractionStarter]: At program point L107(lines 36 109) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (.cse1 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_expf_#res| (fp.add roundNearestTiesToEven .cse0 .cse1)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_expf_~sx~0)) .cse1) (= ~one_exp~0 .cse0) (= ULTIMATE.start___ieee754_expf_~x .cse1) (exists ((ULTIMATE.start___ieee754_expf_~sx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_expf_~sx~0)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_expf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_expf_~sx~0)))))) [2019-10-22 11:26:49,581 INFO L443 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2019-10-22 11:26:49,581 INFO L439 ceAbstractionStarter]: At program point L41-2(lines 41 45) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0) (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ULTIMATE.start___ieee754_expf_~x (fp.neg (_ +zero 8 24)))) [2019-10-22 11:26:49,581 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-10-22 11:26:49,582 INFO L443 ceAbstractionStarter]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2019-10-22 11:26:49,582 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:26:49,582 INFO L443 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2019-10-22 11:26:49,582 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-10-22 11:26:49,582 INFO L443 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2019-10-22 11:26:49,582 INFO L443 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2019-10-22 11:26:49,582 INFO L443 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-10-22 11:26:49,582 INFO L439 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: false [2019-10-22 11:26:49,592 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,593 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,593 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,593 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,594 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,598 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,598 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,598 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,598 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,600 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,601 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,601 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,601 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,601 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,602 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,602 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,602 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:49 BoogieIcfgContainer [2019-10-22 11:26:49,604 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:49,605 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:49,605 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:49,605 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:49,605 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:38" (3/4) ... [2019-10-22 11:26:49,609 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:26:49,620 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:26:49,620 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 11:26:49,645 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(sx[31:31], sx[30:23], sx[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_expf_~sx~0[31:31], ULTIMATE.start___ieee754_expf_~sx~0[30:23], ULTIMATE.start___ieee754_expf_~sx~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_expf_~sx~0)) [2019-10-22 11:26:49,680 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0dd1fba6-e65d-4025-b1f2-3bf09831b701/bin/utaipan/witness.graphml [2019-10-22 11:26:49,680 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:49,682 INFO L168 Benchmark]: Toolchain (without parser) took 19573.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 945.6 MB in the beginning and 956.5 MB in the end (delta: -10.9 MB). Peak memory consumption was 130.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,683 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:49,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:49,684 INFO L168 Benchmark]: Boogie Preprocessor took 34.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:49,684 INFO L168 Benchmark]: RCFGBuilder took 7724.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,684 INFO L168 Benchmark]: TraceAbstraction took 11354.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 969.9 MB in the end (delta: 127.4 MB). Peak memory consumption was 127.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,684 INFO L168 Benchmark]: Witness Printer took 75.83 ms. Allocated memory is still 1.2 GB. Free memory was 969.9 MB in the beginning and 956.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,686 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.20 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 34.66 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 7724.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11354.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 969.9 MB in the end (delta: 127.4 MB). Peak memory consumption was 127.4 MB. Max. memory is 11.5 GB. * Witness Printer took 75.83 ms. Allocated memory is still 1.2 GB. Free memory was 969.9 MB in the beginning and 956.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-10-22 11:26:49,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 11:26:49,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(sx[31:31], sx[30:23], sx[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_expf_~sx~0[31:31], ULTIMATE.start___ieee754_expf_~sx~0[30:23], ULTIMATE.start___ieee754_expf_~sx~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_expf_~sx~0)) - InvariantResult [Line: 41]: Loop Invariant [2019-10-22 11:26:49,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,697 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,697 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,697 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,697 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp && one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: SAFE, OverallTime: 11.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 171 SDslu, 49 SDs, 0 SdLazy, 46 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 8 NumberOfFragments, 72 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 2 QuantifiedInterpolants, 9754 SizeOfPredicates, 17 NumberOfNonLiveVariables, 249 ConjunctsInSsa, 22 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...