./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb ...................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 21:48:53,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:48:53,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:48:53,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:48:53,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:48:53,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:48:53,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:48:53,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:48:53,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:48:53,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:48:53,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:48:53,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:48:53,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:48:53,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:48:53,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:48:53,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:48:53,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:48:53,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:48:53,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:48:53,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:48:53,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:48:53,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:48:53,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:48:53,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:48:53,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:48:53,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:48:53,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:48:53,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:48:53,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:48:53,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:48:53,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:48:53,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:48:53,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:48:53,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:48:53,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:48:53,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:48:53,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:48:53,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:48:53,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:48:53,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:48:53,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:48:53,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 21:48:53,463 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:48:53,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:48:53,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:48:53,464 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:48:53,464 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:48:53,464 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:48:53,464 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:48:53,464 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:48:53,464 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:48:53,465 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:48:53,465 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:48:53,465 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:48:53,465 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:48:53,465 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:48:53,466 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:48:53,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:48:53,466 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:48:53,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:48:53,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:48:53,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:48:53,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:48:53,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:48:53,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:48:53,467 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:48:53,467 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:48:53,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:48:53,467 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:48:53,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:48:53,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:48:53,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:48:53,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:48:53,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:48:53,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:48:53,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:48:53,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:48:53,468 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:48:53,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:48:53,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:48:53,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:48:53,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:48:53,469 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb [2019-12-07 21:48:53,577 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:48:53,587 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:48:53,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:48:53,591 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:48:53,591 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:48:53,592 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-12-07 21:48:53,631 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/data/5eb91a185/0254b42d63dd469095b954f017e724e9/FLAGa3177755a [2019-12-07 21:48:54,055 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:48:54,055 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-12-07 21:48:54,060 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/data/5eb91a185/0254b42d63dd469095b954f017e724e9/FLAGa3177755a [2019-12-07 21:48:54,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/data/5eb91a185/0254b42d63dd469095b954f017e724e9 [2019-12-07 21:48:54,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:48:54,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:48:54,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:48:54,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:48:54,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:48:54,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:48:54" (1/1) ... [2019-12-07 21:48:54,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e583495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54, skipping insertion in model container [2019-12-07 21:48:54,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:48:54" (1/1) ... [2019-12-07 21:48:54,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:48:54,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:48:54,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:48:54,255 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:48:54,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:48:54,290 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:48:54,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54 WrapperNode [2019-12-07 21:48:54,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:48:54,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:48:54,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:48:54,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:48:54,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54" (1/1) ... [2019-12-07 21:48:54,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54" (1/1) ... [2019-12-07 21:48:54,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:48:54,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:48:54,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:48:54,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:48:54,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54" (1/1) ... [2019-12-07 21:48:54,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54" (1/1) ... [2019-12-07 21:48:54,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54" (1/1) ... [2019-12-07 21:48:54,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54" (1/1) ... [2019-12-07 21:48:54,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54" (1/1) ... [2019-12-07 21:48:54,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54" (1/1) ... [2019-12-07 21:48:54,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54" (1/1) ... [2019-12-07 21:48:54,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:48:54,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:48:54,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:48:54,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:48:54,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:48:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 21:48:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 21:48:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 21:48:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 21:48:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:48:54,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:48:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 21:48:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 21:48:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 21:48:54,668 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:48:54,668 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-12-07 21:48:54,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:48:54 BoogieIcfgContainer [2019-12-07 21:48:54,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:48:54,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:48:54,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:48:54,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:48:54,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:48:54" (1/3) ... [2019-12-07 21:48:54,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0c57d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:48:54, skipping insertion in model container [2019-12-07 21:48:54,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:54" (2/3) ... [2019-12-07 21:48:54,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0c57d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:48:54, skipping insertion in model container [2019-12-07 21:48:54,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:48:54" (3/3) ... [2019-12-07 21:48:54,674 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2019-12-07 21:48:54,680 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:48:54,685 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 21:48:54,692 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 21:48:54,707 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:48:54,707 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:48:54,707 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:48:54,707 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:48:54,707 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:48:54,707 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:48:54,707 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:48:54,708 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:48:54,717 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-12-07 21:48:54,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 21:48:54,721 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:48:54,721 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:48:54,722 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:48:54,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:48:54,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1340338453, now seen corresponding path program 1 times [2019-12-07 21:48:54,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 21:48:54,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456494499] [2019-12-07 21:48:54,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 21:48:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:48:54,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:48:54,809 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456494499] [2019-12-07 21:48:54,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:48:54,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 21:48:54,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295304204] [2019-12-07 21:48:54,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 21:48:54,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 21:48:54,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 21:48:54,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:48:54,823 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-12-07 21:48:54,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:48:54,836 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2019-12-07 21:48:54,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 21:48:54,837 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-12-07 21:48:54,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:48:54,844 INFO L225 Difference]: With dead ends: 67 [2019-12-07 21:48:54,844 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 21:48:54,846 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:48:54,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 21:48:54,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-07 21:48:54,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 21:48:54,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2019-12-07 21:48:54,869 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2019-12-07 21:48:54,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:48:54,870 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2019-12-07 21:48:54,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 21:48:54,870 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2019-12-07 21:48:54,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 21:48:54,870 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:48:54,870 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:48:54,870 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:48:54,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:48:54,871 INFO L82 PathProgramCache]: Analyzing trace with hash 932105592, now seen corresponding path program 1 times [2019-12-07 21:48:54,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 21:48:54,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027849030] [2019-12-07 21:48:54,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 21:48:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:48:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:48:54,948 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 21:48:54,948 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:48:54,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:48:54 BoogieIcfgContainer [2019-12-07 21:48:54,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:48:54,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:48:54,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:48:54,968 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:48:54,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:48:54" (3/4) ... [2019-12-07 21:48:54,970 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 21:48:54,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:48:54,972 INFO L168 Benchmark]: Toolchain (without parser) took 899.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 940.7 MB in the beginning and 1.0 GB in the end (delta: -102.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:48:54,972 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:48:54,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 21:48:54,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 21:48:54,973 INFO L168 Benchmark]: Boogie Preprocessor took 22.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:48:54,974 INFO L168 Benchmark]: RCFGBuilder took 324.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2019-12-07 21:48:54,974 INFO L168 Benchmark]: TraceAbstraction took 297.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:48:54,974 INFO L168 Benchmark]: Witness Printer took 2.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:48:54,976 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 218.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 324.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 297.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 123]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L116] float x = __VERIFIER_nondet_float(); [L117] float y = 0.0f; [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={3:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L119] float res = fmod_float(x, y); [L108] return x != x; [L122] COND TRUE !isnan_float(res) [L123] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 21:48:56,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:48:56,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:48:56,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:48:56,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:48:56,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:48:56,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:48:56,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:48:56,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:48:56,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:48:56,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:48:56,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:48:56,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:48:56,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:48:56,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:48:56,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:48:56,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:48:56,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:48:56,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:48:56,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:48:56,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:48:56,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:48:56,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:48:56,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:48:56,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:48:56,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:48:56,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:48:56,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:48:56,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:48:56,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:48:56,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:48:56,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:48:56,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:48:56,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:48:56,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:48:56,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:48:56,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:48:56,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:48:56,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:48:56,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:48:56,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:48:56,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 21:48:56,403 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:48:56,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:48:56,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:48:56,404 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:48:56,404 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:48:56,404 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:48:56,405 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:48:56,405 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:48:56,405 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:48:56,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:48:56,405 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:48:56,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:48:56,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:48:56,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:48:56,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:48:56,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:48:56,406 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:48:56,406 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 21:48:56,406 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 21:48:56,406 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:48:56,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:48:56,407 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:48:56,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:48:56,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:48:56,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 21:48:56,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:48:56,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:48:56,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:48:56,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:48:56,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:48:56,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:48:56,408 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 21:48:56,408 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 21:48:56,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:48:56,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:48:56,409 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:48:56,409 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb [2019-12-07 21:48:56,584 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:48:56,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:48:56,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:48:56,598 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:48:56,598 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:48:56,599 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-12-07 21:48:56,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/data/9b69d25ba/55caa5b643ac406eaa7a0d1917a20ed3/FLAG91e1f0603 [2019-12-07 21:48:57,048 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:48:57,049 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-12-07 21:48:57,055 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/data/9b69d25ba/55caa5b643ac406eaa7a0d1917a20ed3/FLAG91e1f0603 [2019-12-07 21:48:57,427 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/data/9b69d25ba/55caa5b643ac406eaa7a0d1917a20ed3 [2019-12-07 21:48:57,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:48:57,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:48:57,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:48:57,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:48:57,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:48:57,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:48:57" (1/1) ... [2019-12-07 21:48:57,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afbba0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57, skipping insertion in model container [2019-12-07 21:48:57,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:48:57" (1/1) ... [2019-12-07 21:48:57,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:48:57,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:48:57,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:48:57,596 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:48:57,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:48:57,666 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:48:57,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57 WrapperNode [2019-12-07 21:48:57,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:48:57,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:48:57,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:48:57,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:48:57,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57" (1/1) ... [2019-12-07 21:48:57,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57" (1/1) ... [2019-12-07 21:48:57,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:48:57,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:48:57,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:48:57,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:48:57,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57" (1/1) ... [2019-12-07 21:48:57,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57" (1/1) ... [2019-12-07 21:48:57,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57" (1/1) ... [2019-12-07 21:48:57,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57" (1/1) ... [2019-12-07 21:48:57,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57" (1/1) ... [2019-12-07 21:48:57,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57" (1/1) ... [2019-12-07 21:48:57,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57" (1/1) ... [2019-12-07 21:48:57,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:48:57,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:48:57,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:48:57,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:48:57,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:48:57,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-12-07 21:48:57,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 21:48:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 21:48:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 21:48:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:48:57,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:48:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 21:48:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 21:48:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 21:48:59,642 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:48:59,642 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-12-07 21:48:59,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:48:59 BoogieIcfgContainer [2019-12-07 21:48:59,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:48:59,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:48:59,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:48:59,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:48:59,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:48:57" (1/3) ... [2019-12-07 21:48:59,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5004d0f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:48:59, skipping insertion in model container [2019-12-07 21:48:59,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:48:57" (2/3) ... [2019-12-07 21:48:59,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5004d0f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:48:59, skipping insertion in model container [2019-12-07 21:48:59,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:48:59" (3/3) ... [2019-12-07 21:48:59,648 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2019-12-07 21:48:59,654 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:48:59,658 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 21:48:59,665 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 21:48:59,679 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:48:59,680 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:48:59,680 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:48:59,680 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:48:59,680 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:48:59,680 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:48:59,680 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:48:59,680 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:48:59,689 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-12-07 21:48:59,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 21:48:59,693 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:48:59,694 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:48:59,694 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:48:59,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:48:59,698 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-12-07 21:48:59,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:48:59,705 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083330828] [2019-12-07 21:48:59,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 21:48:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:48:59,936 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 21:48:59,939 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:48:59,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:48:59,948 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:48:59,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:48:59,951 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083330828] [2019-12-07 21:48:59,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:48:59,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 21:48:59,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090950129] [2019-12-07 21:48:59,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 21:48:59,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:48:59,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 21:48:59,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:48:59,970 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-12-07 21:48:59,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:48:59,987 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-12-07 21:48:59,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 21:48:59,988 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 21:48:59,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:48:59,995 INFO L225 Difference]: With dead ends: 82 [2019-12-07 21:48:59,995 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 21:48:59,997 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:49:00,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 21:49:00,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 21:49:00,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 21:49:00,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-12-07 21:49:00,022 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-12-07 21:49:00,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:49:00,023 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-12-07 21:49:00,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 21:49:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-12-07 21:49:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 21:49:00,023 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:49:00,023 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:49:00,225 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 21:49:00,225 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:49:00,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:49:00,226 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-12-07 21:49:00,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:49:00,228 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012845994] [2019-12-07 21:49:00,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 21:49:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:49:00,497 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 21:49:00,499 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:49:01,632 WARN L192 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-12-07 21:49:01,634 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 21:49:02,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:49:02,760 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:49:06,051 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-12-07 21:49:06,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:49:06,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012845994] [2019-12-07 21:49:06,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:49:06,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-12-07 21:49:06,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691306611] [2019-12-07 21:49:06,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 21:49:06,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:49:06,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 21:49:06,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2019-12-07 21:49:06,275 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2019-12-07 21:49:11,901 WARN L192 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2019-12-07 21:49:14,540 WARN L192 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2019-12-07 21:49:17,122 WARN L192 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2019-12-07 21:49:17,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:49:17,462 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2019-12-07 21:49:17,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 21:49:17,463 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2019-12-07 21:49:17,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:49:17,464 INFO L225 Difference]: With dead ends: 44 [2019-12-07 21:49:17,464 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 21:49:17,465 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=51, Invalid=108, Unknown=1, NotChecked=22, Total=182 [2019-12-07 21:49:17,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 21:49:17,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 21:49:17,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 21:49:17,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-12-07 21:49:17,469 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-12-07 21:49:17,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:49:17,470 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-12-07 21:49:17,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 21:49:17,470 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-12-07 21:49:17,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 21:49:17,470 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:49:17,470 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:49:17,671 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 21:49:17,672 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:49:17,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:49:17,673 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-12-07 21:49:17,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:49:17,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899901857] [2019-12-07 21:49:17,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 21:49:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:49:17,738 INFO L264 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 21:49:17,740 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:49:17,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:49:17,761 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:49:17,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:49:17,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899901857] [2019-12-07 21:49:17,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:49:17,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 6 [2019-12-07 21:49:17,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960762059] [2019-12-07 21:49:17,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 21:49:17,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:49:17,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 21:49:17,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 21:49:17,797 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 6 states. [2019-12-07 21:49:17,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:49:17,819 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-12-07 21:49:17,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 21:49:17,820 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-12-07 21:49:17,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:49:17,820 INFO L225 Difference]: With dead ends: 39 [2019-12-07 21:49:17,820 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 21:49:17,821 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 21:49:17,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 21:49:17,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 21:49:17,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 21:49:17,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 21:49:17,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-12-07 21:49:17,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:49:17,822 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 21:49:17,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 21:49:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 21:49:17,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 21:49:18,022 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 21:49:18,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 21:49:18,979 WARN L192 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-12-07 21:49:20,263 WARN L192 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 13 [2019-12-07 21:49:20,265 INFO L246 CegarLoopResult]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-12-07 21:49:20,265 INFO L246 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-12-07 21:49:20,266 INFO L249 CegarLoopResult]: At program point L127(lines 110 128) the Hoare annotation is: true [2019-12-07 21:49:20,266 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 21:49:20,266 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 21:49:20,266 INFO L246 CegarLoopResult]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-12-07 21:49:20,266 INFO L246 CegarLoopResult]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-12-07 21:49:20,266 INFO L242 CegarLoopResult]: At program point L20-2(lines 20 24) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 21:49:20,266 INFO L246 CegarLoopResult]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-12-07 21:49:20,266 INFO L246 CegarLoopResult]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-12-07 21:49:20,266 INFO L242 CegarLoopResult]: At program point L104(lines 17 105) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2019-12-07 21:49:20,267 INFO L246 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-12-07 21:49:20,267 INFO L246 CegarLoopResult]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-12-07 21:49:20,267 INFO L242 CegarLoopResult]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-12-07 21:49:20,267 INFO L246 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-12-07 21:49:20,267 INFO L242 CegarLoopResult]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-12-07 21:49:20,267 INFO L246 CegarLoopResult]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-12-07 21:49:20,267 INFO L242 CegarLoopResult]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-12-07 21:49:20,267 INFO L246 CegarLoopResult]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-12-07 21:49:20,267 INFO L246 CegarLoopResult]: For program point L122(lines 122 125) no Hoare annotation was computed. [2019-12-07 21:49:20,267 INFO L246 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-12-07 21:49:20,268 INFO L246 CegarLoopResult]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-12-07 21:49:20,268 INFO L246 CegarLoopResult]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-12-07 21:49:20,268 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 21:49:20,268 INFO L246 CegarLoopResult]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-12-07 21:49:20,268 INFO L246 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2019-12-07 21:49:20,268 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2019-12-07 21:49:20,268 INFO L242 CegarLoopResult]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-12-07 21:49:20,268 INFO L246 CegarLoopResult]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-12-07 21:49:20,268 INFO L246 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-12-07 21:49:20,268 INFO L242 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-12-07 21:49:20,268 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 21:49:20,269 INFO L246 CegarLoopResult]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-12-07 21:49:20,269 INFO L246 CegarLoopResult]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-12-07 21:49:20,269 INFO L246 CegarLoopResult]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-12-07 21:49:20,269 INFO L246 CegarLoopResult]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-12-07 21:49:20,269 INFO L242 CegarLoopResult]: At program point L108(line 108) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2019-12-07 21:49:20,269 INFO L246 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-12-07 21:49:20,269 INFO L246 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-12-07 21:49:20,269 INFO L242 CegarLoopResult]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-12-07 21:49:20,269 INFO L246 CegarLoopResult]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-12-07 21:49:20,270 INFO L246 CegarLoopResult]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-12-07 21:49:20,278 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,278 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,278 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,278 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,279 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,279 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 21:49:20,281 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,281 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,281 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,281 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,281 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,281 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 21:49:20,282 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 21:49:20,283 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,283 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 21:49:20,283 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,283 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,283 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,283 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,284 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,284 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,284 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 21:49:20,284 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,284 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,284 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,285 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,285 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,285 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 21:49:20,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:49:20 BoogieIcfgContainer [2019-12-07 21:49:20,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:49:20,287 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:49:20,287 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:49:20,287 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:49:20,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:48:59" (3/4) ... [2019-12-07 21:49:20,290 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 21:49:20,298 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 21:49:20,298 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 21:49:20,298 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 21:49:20,326 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a6cbb0ba-86e9-4258-84c0-98f9441776a4/bin/utaipan/witness.graphml [2019-12-07 21:49:20,327 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:49:20,328 INFO L168 Benchmark]: Toolchain (without parser) took 22894.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 952.4 MB in the beginning and 937.0 MB in the end (delta: 15.4 MB). Peak memory consumption was 125.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:49:20,328 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:49:20,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-12-07 21:49:20,329 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:49:20,329 INFO L168 Benchmark]: Boogie Preprocessor took 34.24 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:49:20,330 INFO L168 Benchmark]: RCFGBuilder took 1909.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:49:20,330 INFO L168 Benchmark]: TraceAbstraction took 20642.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 937.0 MB in the end (delta: 122.0 MB). Peak memory consumption was 122.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:49:20,330 INFO L168 Benchmark]: Witness Printer took 39.82 ms. Allocated memory is still 1.1 GB. Free memory is still 937.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:49:20,332 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 231.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.24 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1909.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 20642.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 937.0 MB in the end (delta: 122.0 MB). Peak memory consumption was 122.0 MB. Max. memory is 11.5 GB. * Witness Printer took 39.82 ms. Allocated memory is still 1.1 GB. Free memory is still 937.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,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[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,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[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,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[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,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[ULTIMATE.start_fmod_float_~x,QUANTIFIED] * 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: 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: 110]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant [2019-12-07 21:49:20,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,338 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,338 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 21:49:20,338 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,339 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,339 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,339 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,339 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,339 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((y == ~Pluszero~LONGDOUBLE() && 1bv32 == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE())) == \result) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant [2019-12-07 21:49:20,340 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,340 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 21:49:20,340 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,340 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: y == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 17]: Loop Invariant [2019-12-07 21:49:20,340 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,340 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,340 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,341 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 21:49:20,341 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,341 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,341 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,342 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,342 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 21:49:20,342 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-12-07 21:49:20,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (y == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE())) == \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 18.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, HoareTripleCheckerStatistics: 111 SDtfs, 111 SDslu, 193 SDs, 0 SdLazy, 35 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 15.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 57 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 10 QuantifiedInterpolants, 4565 SizeOfPredicates, 16 NumberOfNonLiveVariables, 154 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...