./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88d3648b8ee059de01de6f913fc316c297763bb6 ................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88d3648b8ee059de01de6f913fc316c297763bb6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:51:32,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:51:32,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:51:32,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:51:32,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:51:32,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:51:32,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:51:32,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:51:32,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:51:32,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:51:32,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:51:32,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:51:32,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:51:32,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:51:32,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:51:32,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:51:32,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:51:32,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:51:32,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:51:32,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:51:32,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:51:32,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:51:32,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:51:32,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:51:32,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:51:32,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:51:32,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:51:32,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:51:32,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:51:32,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:51:32,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:51:32,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:51:32,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:51:32,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:51:32,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:51:32,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:51:32,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:51:32,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:51:32,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:51:32,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:51:32,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:51:32,431 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:51:32,462 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:51:32,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:51:32,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:51:32,463 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:51:32,463 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:51:32,463 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:51:32,464 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:51:32,464 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:51:32,464 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:51:32,464 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:51:32,464 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:51:32,465 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:51:32,465 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:51:32,465 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:51:32,465 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:51:32,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:51:32,466 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:51:32,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:51:32,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:51:32,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:51:32,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:51:32,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:51:32,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:51:32,467 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:51:32,467 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:51:32,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:51:32,468 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:51:32,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:51:32,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:51:32,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:51:32,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:51:32,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:51:32,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:51:32,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:51:32,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:51:32,470 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:51:32,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:51:32,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:51:32,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:51:32,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:51:32,470 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2020-11-22 12:51:32,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:51:32,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:51:32,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:51:32,794 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:51:32,808 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:51:32,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-22 12:51:32,892 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/data/2e7e9a8f7/4b47d9d9693a43778ef38070b89ecdfb/FLAGc856326f1 [2020-11-22 12:51:33,391 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:51:33,393 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-22 12:51:33,402 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/data/2e7e9a8f7/4b47d9d9693a43778ef38070b89ecdfb/FLAGc856326f1 [2020-11-22 12:51:33,741 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/data/2e7e9a8f7/4b47d9d9693a43778ef38070b89ecdfb [2020-11-22 12:51:33,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:51:33,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:51:33,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:51:33,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:51:33,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:51:33,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:51:33" (1/1) ... [2020-11-22 12:51:33,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c8d994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:33, skipping insertion in model container [2020-11-22 12:51:33,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:51:33" (1/1) ... [2020-11-22 12:51:33,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:51:33,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:51:34,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:51:34,065 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:51:34,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:51:34,133 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:51:34,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:34 WrapperNode [2020-11-22 12:51:34,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:51:34,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:51:34,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:51:34,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:51:34,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:34" (1/1) ... [2020-11-22 12:51:34,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:34" (1/1) ... [2020-11-22 12:51:34,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:51:34,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:51:34,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:51:34,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:51:34,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:34" (1/1) ... [2020-11-22 12:51:34,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:34" (1/1) ... [2020-11-22 12:51:34,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:34" (1/1) ... [2020-11-22 12:51:34,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:34" (1/1) ... [2020-11-22 12:51:34,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:34" (1/1) ... [2020-11-22 12:51:34,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:34" (1/1) ... [2020-11-22 12:51:34,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:34" (1/1) ... [2020-11-22 12:51:34,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:51:34,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:51:34,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:51:34,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:51:34,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/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 [2020-11-22 12:51:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:51:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:51:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 12:51:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 12:51:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 12:51:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:51:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:51:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 12:51:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:51:35,412 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:51:35,412 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-22 12:51:35,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:51:35 BoogieIcfgContainer [2020-11-22 12:51:35,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:51:35,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:51:35,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:51:35,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:51:35,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:51:33" (1/3) ... [2020-11-22 12:51:35,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76caf7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:51:35, skipping insertion in model container [2020-11-22 12:51:35,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:34" (2/3) ... [2020-11-22 12:51:35,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76caf7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:51:35, skipping insertion in model container [2020-11-22 12:51:35,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:51:35" (3/3) ... [2020-11-22 12:51:35,425 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2020-11-22 12:51:35,438 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:51:35,443 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:51:35,458 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:51:35,487 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:51:35,488 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:51:35,488 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:51:35,488 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:51:35,488 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:51:35,488 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:51:35,489 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:51:35,489 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:51:35,505 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-11-22 12:51:35,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 12:51:35,511 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:35,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:51:35,513 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:35,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:35,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1460870729, now seen corresponding path program 1 times [2020-11-22 12:51:35,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:51:35,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995226330] [2020-11-22 12:51:35,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:51:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:51:35,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:35,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995226330] [2020-11-22 12:51:35,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:51:35,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 12:51:35,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190508274] [2020-11-22 12:51:35,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:51:35,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:51:35,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:51:35,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:51:35,745 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-11-22 12:51:35,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:51:35,782 INFO L93 Difference]: Finished difference Result 78 states and 125 transitions. [2020-11-22 12:51:35,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:51:35,784 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-22 12:51:35,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:51:35,809 INFO L225 Difference]: With dead ends: 78 [2020-11-22 12:51:35,809 INFO L226 Difference]: Without dead ends: 37 [2020-11-22 12:51:35,813 INFO L677 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 [2020-11-22 12:51:35,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-22 12:51:35,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-22 12:51:35,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-22 12:51:35,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2020-11-22 12:51:35,865 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 9 [2020-11-22 12:51:35,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:51:35,866 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2020-11-22 12:51:35,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:51:35,866 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2020-11-22 12:51:35,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 12:51:35,867 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:35,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:51:35,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:51:35,867 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:35,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:35,868 INFO L82 PathProgramCache]: Analyzing trace with hash -110726150, now seen corresponding path program 1 times [2020-11-22 12:51:35,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:51:35,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212819913] [2020-11-22 12:51:35,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:51:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:51:35,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:35,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212819913] [2020-11-22 12:51:35,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:51:35,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 12:51:35,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187936600] [2020-11-22 12:51:35,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:51:35,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:51:35,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:51:35,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:51:35,975 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 3 states. [2020-11-22 12:51:36,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:51:36,018 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2020-11-22 12:51:36,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:51:36,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-22 12:51:36,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:51:36,024 INFO L225 Difference]: With dead ends: 69 [2020-11-22 12:51:36,024 INFO L226 Difference]: Without dead ends: 37 [2020-11-22 12:51:36,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:51:36,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-22 12:51:36,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-22 12:51:36,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-22 12:51:36,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-11-22 12:51:36,042 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 10 [2020-11-22 12:51:36,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:51:36,043 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-11-22 12:51:36,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:51:36,043 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-11-22 12:51:36,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 12:51:36,044 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:36,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:51:36,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:51:36,046 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:36,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:36,051 INFO L82 PathProgramCache]: Analyzing trace with hash 809008609, now seen corresponding path program 1 times [2020-11-22 12:51:36,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:51:36,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939533329] [2020-11-22 12:51:36,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:51:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:51:36,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:51:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:51:36,277 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:51:36,331 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 12:51:36,332 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:51:36,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 12:51:36,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:51:36 BoogieIcfgContainer [2020-11-22 12:51:36,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:51:36,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:51:36,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:51:36,425 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:51:36,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:51:35" (3/4) ... [2020-11-22 12:51:36,429 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 12:51:36,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:51:36,435 INFO L168 Benchmark]: Toolchain (without parser) took 2682.57 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 68.5 MB in the beginning and 78.2 MB in the end (delta: -9.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:36,436 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory is still 85.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:51:36,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.59 ms. Allocated memory is still 104.9 MB. Free memory was 68.3 MB in the beginning and 77.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:36,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.06 ms. Allocated memory is still 104.9 MB. Free memory was 77.2 MB in the beginning and 74.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:36,440 INFO L168 Benchmark]: Boogie Preprocessor took 88.89 ms. Allocated memory is still 104.9 MB. Free memory was 74.7 MB in the beginning and 72.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:36,441 INFO L168 Benchmark]: RCFGBuilder took 1096.98 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 72.6 MB in the beginning and 111.2 MB in the end (delta: -38.7 MB). Peak memory consumption was 41.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:36,444 INFO L168 Benchmark]: TraceAbstraction took 1005.56 ms. Allocated memory is still 140.5 MB. Free memory was 110.5 MB in the beginning and 78.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:36,445 INFO L168 Benchmark]: Witness Printer took 5.90 ms. Allocated memory is still 140.5 MB. Free memory is still 78.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:51:36,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory is still 85.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 379.59 ms. Allocated memory is still 104.9 MB. Free memory was 68.3 MB in the beginning and 77.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.06 ms. Allocated memory is still 104.9 MB. Free memory was 77.2 MB in the beginning and 74.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.89 ms. Allocated memory is still 104.9 MB. Free memory was 74.7 MB in the beginning and 72.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1096.98 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 72.6 MB in the beginning and 111.2 MB in the end (delta: -38.7 MB). Peak memory consumption was 41.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1005.56 ms. Allocated memory is still 140.5 MB. Free memory was 110.5 MB in the beginning and 78.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.90 ms. Allocated memory is still 140.5 MB. Free memory is still 78.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 147, overapproximation of bitwiseAnd at line 118, overapproximation of someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; [L168] float x = __VERIFIER_nondet_float(); [L170] x < 0 && isfinite_float(x) [L151] __int32_t ix; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L153] ieee_float_shape_type gf_u; [L154] gf_u.value = (x) [L155] EXPR gf_u.word [L155] (ix) = gf_u.word [L157] ix &= 0x7fffffff [L158] return (((ix) < 0x7f800000L)); [L170] x < 0 && isfinite_float(x) VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L170] COND TRUE x < 0 && isfinite_float(x) [L108] float y, z; [L109] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L172] float res = __ieee754_log10f(x); [L147] return x != x; [L175] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0970a.c", 3, "reach_error") VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 0 SDslu, 40 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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 0.2.0-a4ecdab [2020-11-22 12:51:39,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:51:39,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:51:39,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:51:39,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:51:39,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:51:39,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:51:39,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:51:39,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:51:39,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:51:39,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:51:39,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:51:39,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:51:39,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:51:39,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:51:39,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:51:39,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:51:39,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:51:39,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:51:39,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:51:39,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:51:39,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:51:39,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:51:39,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:51:39,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:51:39,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:51:39,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:51:39,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:51:39,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:51:39,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:51:39,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:51:39,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:51:39,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:51:39,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:51:39,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:51:39,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:51:39,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:51:39,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:51:39,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:51:39,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:51:39,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:51:39,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:51:39,711 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:51:39,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:51:39,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:51:39,713 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:51:39,713 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:51:39,713 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:51:39,713 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:51:39,713 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:51:39,713 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:51:39,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:51:39,715 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:51:39,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:51:39,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:51:39,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:51:39,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:51:39,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:51:39,719 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:51:39,719 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:51:39,720 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:51:39,720 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:51:39,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:51:39,721 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:51:39,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:51:39,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:51:39,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:51:39,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:51:39,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:51:39,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:51:39,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:51:39,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:51:39,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:51:39,724 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:51:39,724 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:51:39,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:51:39,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:51:39,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:51:39,725 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2020-11-22 12:51:40,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:51:40,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:51:40,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:51:40,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:51:40,230 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:51:40,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-22 12:51:40,331 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/data/3741176f0/985236493e994aa0a07e4e31c4610d9b/FLAG75b37a60a [2020-11-22 12:51:41,030 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:51:41,031 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-22 12:51:41,048 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/data/3741176f0/985236493e994aa0a07e4e31c4610d9b/FLAG75b37a60a [2020-11-22 12:51:41,415 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/data/3741176f0/985236493e994aa0a07e4e31c4610d9b [2020-11-22 12:51:41,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:51:41,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:51:41,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:51:41,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:51:41,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:51:41,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:51:41" (1/1) ... [2020-11-22 12:51:41,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d5a2ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41, skipping insertion in model container [2020-11-22 12:51:41,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:51:41" (1/1) ... [2020-11-22 12:51:41,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:51:41,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:51:41,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:51:41,856 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:51:41,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:51:41,958 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:51:41,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41 WrapperNode [2020-11-22 12:51:41,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:51:41,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:51:41,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:51:41,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:51:41,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41" (1/1) ... [2020-11-22 12:51:41,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41" (1/1) ... [2020-11-22 12:51:42,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:51:42,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:51:42,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:51:42,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:51:42,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41" (1/1) ... [2020-11-22 12:51:42,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41" (1/1) ... [2020-11-22 12:51:42,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41" (1/1) ... [2020-11-22 12:51:42,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41" (1/1) ... [2020-11-22 12:51:42,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41" (1/1) ... [2020-11-22 12:51:42,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41" (1/1) ... [2020-11-22 12:51:42,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41" (1/1) ... [2020-11-22 12:51:42,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:51:42,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:51:42,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:51:42,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:51:42,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/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 [2020-11-22 12:51:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:51:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:51:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-22 12:51:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 12:51:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:51:42,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:51:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-22 12:51:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 12:51:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:51:58,446 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:51:58,446 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-22 12:51:58,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:51:58 BoogieIcfgContainer [2020-11-22 12:51:58,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:51:58,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:51:58,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:51:58,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:51:58,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:51:41" (1/3) ... [2020-11-22 12:51:58,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e329e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:51:58, skipping insertion in model container [2020-11-22 12:51:58,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:51:41" (2/3) ... [2020-11-22 12:51:58,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e329e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:51:58, skipping insertion in model container [2020-11-22 12:51:58,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:51:58" (3/3) ... [2020-11-22 12:51:58,458 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2020-11-22 12:51:58,471 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:51:58,476 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:51:58,488 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:51:58,531 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:51:58,536 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:51:58,536 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:51:58,536 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:51:58,537 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:51:58,537 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:51:58,537 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:51:58,537 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:51:58,554 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-11-22 12:51:58,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 12:51:58,559 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:58,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:51:58,560 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:58,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:58,566 INFO L82 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2020-11-22 12:51:58,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:51:58,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623669022] [2020-11-22 12:51:58,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/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 [2020-11-22 12:51:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:51:59,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:51:59,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:51:59,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:59,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:51:59,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:59,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623669022] [2020-11-22 12:51:59,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:51:59,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:51:59,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930729429] [2020-11-22 12:51:59,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:51:59,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:51:59,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:51:59,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:51:59,369 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2020-11-22 12:51:59,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:51:59,390 INFO L93 Difference]: Finished difference Result 100 states and 161 transitions. [2020-11-22 12:51:59,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:51:59,392 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-22 12:51:59,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:51:59,401 INFO L225 Difference]: With dead ends: 100 [2020-11-22 12:51:59,401 INFO L226 Difference]: Without dead ends: 47 [2020-11-22 12:51:59,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:51:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-22 12:51:59,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-22 12:51:59,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-22 12:51:59,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2020-11-22 12:51:59,439 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2020-11-22 12:51:59,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:51:59,440 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-11-22 12:51:59,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:51:59,440 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2020-11-22 12:51:59,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 12:51:59,441 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:59,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:51:59,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:51:59,654 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:59,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:59,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2020-11-22 12:51:59,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:51:59,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424449125] [2020-11-22 12:51:59,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/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 [2020-11-22 12:52:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:52:00,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:52:00,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:52:00,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:52:00,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:52:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:52:00,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424449125] [2020-11-22 12:52:00,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:52:00,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:52:00,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461240300] [2020-11-22 12:52:00,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:52:00,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:52:00,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:52:00,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:52:00,488 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 3 states. [2020-11-22 12:52:00,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:52:00,537 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2020-11-22 12:52:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:52:00,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-22 12:52:00,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:52:00,539 INFO L225 Difference]: With dead ends: 87 [2020-11-22 12:52:00,539 INFO L226 Difference]: Without dead ends: 47 [2020-11-22 12:52:00,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:52:00,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-22 12:52:00,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-22 12:52:00,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-22 12:52:00,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2020-11-22 12:52:00,547 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2020-11-22 12:52:00,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:52:00,548 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2020-11-22 12:52:00,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:52:00,548 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2020-11-22 12:52:00,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 12:52:00,549 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:52:00,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:52:00,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:52:00,772 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:52:00,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:52:00,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2020-11-22 12:52:00,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:52:00,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131135426] [2020-11-22 12:52:00,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/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 [2020-11-22 12:52:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:52:01,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 12:52:01,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:52:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:52:01,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:52:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:52:01,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131135426] [2020-11-22 12:52:01,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:52:01,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-22 12:52:01,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183351380] [2020-11-22 12:52:01,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 12:52:01,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:52:01,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 12:52:01,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:52:01,965 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand 10 states. [2020-11-22 12:52:02,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:52:02,929 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2020-11-22 12:52:02,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 12:52:02,993 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-11-22 12:52:02,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:52:02,994 INFO L225 Difference]: With dead ends: 52 [2020-11-22 12:52:02,994 INFO L226 Difference]: Without dead ends: 18 [2020-11-22 12:52:02,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-11-22 12:52:02,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-22 12:52:02,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-22 12:52:03,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-22 12:52:03,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-11-22 12:52:03,000 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-11-22 12:52:03,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:52:03,001 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-11-22 12:52:03,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 12:52:03,001 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-11-22 12:52:03,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 12:52:03,002 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:52:03,002 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:52:03,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:52:03,215 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:52:03,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:52:03,216 INFO L82 PathProgramCache]: Analyzing trace with hash -616191433, now seen corresponding path program 1 times [2020-11-22 12:52:03,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:52:03,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523510378] [2020-11-22 12:52:03,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/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 [2020-11-22 12:52:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:52:04,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-22 12:52:04,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:52:04,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:52:04,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:52:06,949 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-11-22 12:52:06,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:52:06,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523510378] [2020-11-22 12:52:06,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:52:06,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-22 12:52:06,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610355463] [2020-11-22 12:52:06,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 12:52:06,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:52:06,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 12:52:06,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:52:06,982 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2020-11-22 12:52:09,542 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 14 [2020-11-22 12:52:09,729 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2020-11-22 12:52:09,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:52:09,731 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-11-22 12:52:09,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:52:09,731 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-11-22 12:52:09,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:52:09,731 INFO L225 Difference]: With dead ends: 18 [2020-11-22 12:52:09,732 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 12:52:09,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-22 12:52:09,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 12:52:09,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 12:52:09,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 12:52:09,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 12:52:09,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-22 12:52:09,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:52:09,734 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 12:52:09,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 12:52:09,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 12:52:09,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 12:52:09,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:52:09,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 12:52:10,125 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-11-22 12:52:10,369 INFO L274 CegarLoopResult]: For program point L93(lines 93 96) no Hoare annotation was computed. [2020-11-22 12:52:10,369 INFO L274 CegarLoopResult]: For program point L60(lines 60 65) no Hoare annotation was computed. [2020-11-22 12:52:10,369 INFO L274 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2020-11-22 12:52:10,369 INFO L274 CegarLoopResult]: For program point L85(lines 85 97) no Hoare annotation was computed. [2020-11-22 12:52:10,370 INFO L270 CegarLoopResult]: At program point L143(lines 107 144) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)) ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (not (fp.eq |ULTIMATE.start___ieee754_log10f_#res| |ULTIMATE.start___ieee754_log10f_#res|)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-22 12:52:10,370 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 12:52:10,370 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 12:52:10,370 INFO L274 CegarLoopResult]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2020-11-22 12:52:10,370 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 12:52:10,370 INFO L270 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2020-11-22 12:52:10,370 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 12:52:10,371 INFO L274 CegarLoopResult]: For program point L152-1(lines 152 156) no Hoare annotation was computed. [2020-11-22 12:52:10,371 INFO L270 CegarLoopResult]: At program point L152-2(lines 152 156) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) |ULTIMATE.start_main_#t~short24| (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-22 12:52:10,371 INFO L274 CegarLoopResult]: For program point L152-3(lines 152 156) no Hoare annotation was computed. [2020-11-22 12:52:10,371 INFO L274 CegarLoopResult]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2020-11-22 12:52:10,371 INFO L270 CegarLoopResult]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-22 12:52:10,371 INFO L274 CegarLoopResult]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2020-11-22 12:52:10,372 INFO L274 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-11-22 12:52:10,372 INFO L274 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-11-22 12:52:10,372 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-11-22 12:52:10,372 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-22 12:52:10,372 INFO L274 CegarLoopResult]: For program point L170-2(lines 170 179) no Hoare annotation was computed. [2020-11-22 12:52:10,372 INFO L274 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2020-11-22 12:52:10,372 INFO L270 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2020-11-22 12:52:10,373 INFO L274 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2020-11-22 12:52:10,373 INFO L274 CegarLoopResult]: For program point L170-4(lines 170 179) no Hoare annotation was computed. [2020-11-22 12:52:10,373 INFO L270 CegarLoopResult]: At program point L96(lines 22 98) the Hoare annotation is: false [2020-11-22 12:52:10,373 INFO L274 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2020-11-22 12:52:10,373 INFO L274 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2020-11-22 12:52:10,373 INFO L274 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-11-22 12:52:10,374 INFO L270 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)) ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (not (fp.eq |ULTIMATE.start___ieee754_log10f_#res| |ULTIMATE.start___ieee754_log10f_#res|)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-22 12:52:10,374 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 12:52:10,374 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 12:52:10,374 INFO L277 CegarLoopResult]: At program point L181(lines 161 182) the Hoare annotation is: true [2020-11-22 12:52:10,374 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-11-22 12:52:10,374 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 12:52:10,374 INFO L274 CegarLoopResult]: For program point L124(lines 124 132) no Hoare annotation was computed. [2020-11-22 12:52:10,375 INFO L274 CegarLoopResult]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2020-11-22 12:52:10,375 INFO L274 CegarLoopResult]: For program point L58(lines 58 74) no Hoare annotation was computed. [2020-11-22 12:52:10,375 INFO L274 CegarLoopResult]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2020-11-22 12:52:10,375 INFO L270 CegarLoopResult]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2020-11-22 12:52:10,375 INFO L270 CegarLoopResult]: At program point L158(lines 150 159) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) |ULTIMATE.start_main_#t~short24| (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-22 12:52:10,375 INFO L274 CegarLoopResult]: For program point L59(lines 59 66) no Hoare annotation was computed. [2020-11-22 12:52:10,376 INFO L274 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-11-22 12:52:10,376 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2020-11-22 12:52:10,376 INFO L274 CegarLoopResult]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2020-11-22 12:52:10,376 INFO L274 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-11-22 12:52:10,376 INFO L270 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2020-11-22 12:52:10,376 INFO L274 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-11-22 12:52:10,376 INFO L274 CegarLoopResult]: For program point L175(lines 175 178) no Hoare annotation was computed. [2020-11-22 12:52:10,377 INFO L274 CegarLoopResult]: For program point L68(lines 68 73) no Hoare annotation was computed. [2020-11-22 12:52:10,377 INFO L274 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-11-22 12:52:10,386 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,388 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,391 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,392 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,399 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,402 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,402 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,404 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,404 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,406 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,408 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,409 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,409 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,411 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,413 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,415 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,416 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:52:10 BoogieIcfgContainer [2020-11-22 12:52:10,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:52:10,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:52:10,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:52:10,421 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:52:10,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:51:58" (3/4) ... [2020-11-22 12:52:10,425 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 12:52:10,455 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2020-11-22 12:52:10,457 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-22 12:52:10,458 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:52:10,459 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:52:10,492 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && aux-x < 0 && isfinite_float(x)-aux) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-22 12:52:10,493 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-22 12:52:10,493 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && aux-x < 0 && isfinite_float(x)-aux) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-22 12:52:10,494 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-22 12:52:10,494 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-22 12:52:10,565 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0e8334b0-f45f-47eb-9461-cd242b00f0fe/bin/utaipan/witness.graphml [2020-11-22 12:52:10,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:52:10,573 INFO L168 Benchmark]: Toolchain (without parser) took 29151.27 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 27.0 MB in the beginning and 31.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:10,573 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:52:10,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.25 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 28.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:10,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.45 ms. Allocated memory is still 50.3 MB. Free memory was 28.2 MB in the beginning and 25.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:10,575 INFO L168 Benchmark]: Boogie Preprocessor took 57.27 ms. Allocated memory is still 50.3 MB. Free memory was 25.8 MB in the beginning and 23.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:10,575 INFO L168 Benchmark]: RCFGBuilder took 16342.38 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 23.5 MB in the beginning and 35.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:10,576 INFO L168 Benchmark]: TraceAbstraction took 11969.51 ms. Allocated memory is still 65.0 MB. Free memory was 34.9 MB in the beginning and 37.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:10,576 INFO L168 Benchmark]: Witness Printer took 150.95 ms. Allocated memory is still 65.0 MB. Free memory was 37.9 MB in the beginning and 31.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:10,579 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 533.25 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 28.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.45 ms. Allocated memory is still 50.3 MB. Free memory was 28.2 MB in the beginning and 25.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.27 ms. Allocated memory is still 50.3 MB. Free memory was 25.8 MB in the beginning and 23.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 16342.38 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 23.5 MB in the beginning and 35.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11969.51 ms. Allocated memory is still 65.0 MB. Free memory was 34.9 MB in the beginning and 37.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * Witness Printer took 150.95 ms. Allocated memory is still 65.0 MB. Free memory was 37.9 MB in the beginning and 31.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - 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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - 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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - 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[v_prenex_6,QUANTIFIED] - 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[v_prenex_6,QUANTIFIED] - 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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - 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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - 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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - 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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - 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[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 107]: Loop Invariant [2020-11-22 12:52:10,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,598 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 152]: Loop Invariant [2020-11-22 12:52:10,602 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,603 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,604 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,604 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && aux-x < 0 && isfinite_float(x)-aux) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2020-11-22 12:52:10,605 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,605 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,605 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,606 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,606 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,606 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2020-11-22 12:52:10,608 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,608 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,608 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,608 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,609 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,609 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,610 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,610 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 150]: Loop Invariant [2020-11-22 12:52:10,611 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,611 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,611 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,612 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-22 12:52:10,612 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:52:10,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:52:10,613 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && aux-x < 0 && isfinite_float(x)-aux) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 152 SDtfs, 39 SDslu, 132 SDs, 0 SdLazy, 35 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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, 12 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 137 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 104 ConstructedInterpolants, 30 QuantifiedInterpolants, 9688 SizeOfPredicates, 17 NumberOfNonLiveVariables, 285 ConjunctsInSsa, 20 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...