./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a46db52b19fb11eeacebca884b6de40c52cb082 ........................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a46db52b19fb11eeacebca884b6de40c52cb082 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:37:00,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:37:00,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:37:01,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:37:01,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:37:01,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:37:01,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:37:01,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:37:01,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:37:01,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:37:01,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:37:01,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:37:01,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:37:01,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:37:01,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:37:01,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:37:01,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:37:01,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:37:01,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:37:01,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:37:01,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:37:01,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:37:01,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:37:01,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:37:01,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:37:01,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:37:01,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:37:01,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:37:01,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:37:01,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:37:01,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:37:01,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:37:01,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:37:01,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:37:01,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:37:01,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:37:01,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:37:01,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:37:01,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:37:01,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:37:01,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:37:01,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:37:01,147 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:37:01,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:37:01,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:37:01,149 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:37:01,150 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:37:01,150 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:37:01,150 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:37:01,150 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:37:01,151 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:37:01,151 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:37:01,152 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:37:01,152 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:37:01,152 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:37:01,153 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:37:01,153 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:37:01,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:37:01,154 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:37:01,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:37:01,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:37:01,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:37:01,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:37:01,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:37:01,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:37:01,155 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:37:01,155 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:37:01,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:37:01,156 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:37:01,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:37:01,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:37:01,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:37:01,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:37:01,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:37:01,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:37:01,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:37:01,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:37:01,159 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:37:01,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:37:01,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:37:01,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:37:01,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:37:01,160 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-11-30 01:37:01,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:37:01,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:37:01,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:37:01,513 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:37:01,514 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:37:01,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-11-30 01:37:01,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/data/ec74c6d48/92b469f798e44103addf0670d29ecf83/FLAG30a9f033b [2020-11-30 01:37:02,038 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:37:02,048 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-11-30 01:37:02,055 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/data/ec74c6d48/92b469f798e44103addf0670d29ecf83/FLAG30a9f033b [2020-11-30 01:37:02,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/data/ec74c6d48/92b469f798e44103addf0670d29ecf83 [2020-11-30 01:37:02,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:37:02,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:37:02,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:37:02,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:37:02,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:37:02,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:37:02" (1/1) ... [2020-11-30 01:37:02,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5492a733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02, skipping insertion in model container [2020-11-30 01:37:02,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:37:02" (1/1) ... [2020-11-30 01:37:02,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:37:02,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:37:02,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:37:02,668 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:37:02,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:37:02,713 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:37:02,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02 WrapperNode [2020-11-30 01:37:02,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:37:02,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:37:02,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:37:02,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:37:02,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02" (1/1) ... [2020-11-30 01:37:02,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02" (1/1) ... [2020-11-30 01:37:02,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:37:02,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:37:02,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:37:02,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:37:02,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02" (1/1) ... [2020-11-30 01:37:02,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02" (1/1) ... [2020-11-30 01:37:02,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02" (1/1) ... [2020-11-30 01:37:02,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02" (1/1) ... [2020-11-30 01:37:02,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02" (1/1) ... [2020-11-30 01:37:02,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02" (1/1) ... [2020-11-30 01:37:02,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02" (1/1) ... [2020-11-30 01:37:02,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:37:02,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:37:02,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:37:02,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:37:02,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:37:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:37:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:37:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 01:37:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:37:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 01:37:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:37:02,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:37:02,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:37:02,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:37:03,545 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:37:03,545 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 01:37:03,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:37:03 BoogieIcfgContainer [2020-11-30 01:37:03,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:37:03,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:37:03,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:37:03,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:37:03,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:37:02" (1/3) ... [2020-11-30 01:37:03,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ea609e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:37:03, skipping insertion in model container [2020-11-30 01:37:03,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:02" (2/3) ... [2020-11-30 01:37:03,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ea609e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:37:03, skipping insertion in model container [2020-11-30 01:37:03,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:37:03" (3/3) ... [2020-11-30 01:37:03,557 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-11-30 01:37:03,569 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:37:03,574 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:37:03,591 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:37:03,614 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:37:03,614 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:37:03,615 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:37:03,615 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:37:03,615 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:37:03,615 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:37:03,615 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:37:03,615 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:37:03,631 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-11-30 01:37:03,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:37:03,636 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:37:03,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:37:03,637 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:37:03,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:37:03,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1121646355, now seen corresponding path program 1 times [2020-11-30 01:37:03,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:37:03,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803269628] [2020-11-30 01:37:03,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:37:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:37:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:37:03,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803269628] [2020-11-30 01:37:03,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:37:03,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:37:03,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229731831] [2020-11-30 01:37:03,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:37:03,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:37:03,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:37:03,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:37:03,795 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-11-30 01:37:03,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:37:03,811 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-11-30 01:37:03,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:37:03,812 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 01:37:03,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:37:03,821 INFO L225 Difference]: With dead ends: 39 [2020-11-30 01:37:03,821 INFO L226 Difference]: Without dead ends: 18 [2020-11-30 01:37:03,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:37:03,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-30 01:37:03,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 01:37:03,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 01:37:03,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2020-11-30 01:37:03,879 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7 [2020-11-30 01:37:03,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:37:03,880 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-11-30 01:37:03,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:37:03,880 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-11-30 01:37:03,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:37:03,881 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:37:03,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:37:03,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:37:03,881 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:37:03,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:37:03,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1816986138, now seen corresponding path program 1 times [2020-11-30 01:37:03,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:37:03,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207972204] [2020-11-30 01:37:03,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:37:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:37:03,952 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:37:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:37:04,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:37:04,057 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 01:37:04,057 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:37:04,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:37:04,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:37:04 BoogieIcfgContainer [2020-11-30 01:37:04,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:37:04,097 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:37:04,098 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:37:04,098 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:37:04,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:37:03" (3/4) ... [2020-11-30 01:37:04,101 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:37:04,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:37:04,106 INFO L168 Benchmark]: Toolchain (without parser) took 1695.71 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 58.2 MB in the beginning and 81.8 MB in the end (delta: -23.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:37:04,107 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 94.4 MB. Free memory is still 74.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:37:04,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.05 ms. Allocated memory is still 94.4 MB. Free memory was 58.0 MB in the beginning and 70.0 MB in the end (delta: -12.0 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:37:04,109 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.63 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 68.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:37:04,110 INFO L168 Benchmark]: Boogie Preprocessor took 32.24 ms. Allocated memory is still 94.4 MB. Free memory was 68.1 MB in the beginning and 66.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:37:04,111 INFO L168 Benchmark]: RCFGBuilder took 763.49 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 66.7 MB in the beginning and 75.9 MB in the end (delta: -9.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:37:04,112 INFO L168 Benchmark]: TraceAbstraction took 546.45 ms. Allocated memory is still 113.2 MB. Free memory was 75.5 MB in the beginning and 81.8 MB in the end (delta: -6.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:37:04,112 INFO L168 Benchmark]: Witness Printer took 5.09 ms. Allocated memory is still 113.2 MB. Free memory is still 81.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:37:04,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 94.4 MB. Free memory is still 74.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 297.05 ms. Allocated memory is still 94.4 MB. Free memory was 58.0 MB in the beginning and 70.0 MB in the end (delta: -12.0 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.63 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 68.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.24 ms. Allocated memory is still 94.4 MB. Free memory was 68.1 MB in the beginning and 66.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 763.49 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 66.7 MB in the beginning and 75.9 MB in the end (delta: -9.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 546.45 ms. Allocated memory is still 113.2 MB. Free memory was 75.5 MB in the beginning and 81.8 MB in the end (delta: -6.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.09 ms. Allocated memory is still 113.2 MB. Free memory is still 81.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 29. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L93] float x = 0.0f / 0.0f; [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L94] float res = __ieee754_sqrtf(x); [L15] return x != x; [L97] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0720.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 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=20occurred 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:37:06,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:37:06,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:37:06,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:37:06,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:37:06,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:37:06,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:37:06,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:37:06,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:37:06,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:37:06,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:37:06,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:37:06,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:37:06,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:37:06,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:37:06,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:37:06,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:37:06,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:37:06,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:37:06,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:37:06,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:37:06,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:37:06,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:37:06,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:37:06,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:37:06,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:37:06,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:37:06,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:37:06,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:37:06,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:37:06,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:37:06,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:37:06,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:37:06,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:37:06,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:37:06,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:37:06,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:37:06,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:37:06,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:37:06,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:37:06,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:37:06,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 01:37:06,848 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:37:06,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:37:06,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:37:06,850 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:37:06,850 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:37:06,851 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:37:06,851 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:37:06,851 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:37:06,851 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:37:06,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:37:06,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:37:06,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:37:06,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:37:06,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:37:06,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:37:06,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:37:06,855 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:37:06,855 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:37:06,855 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:37:06,855 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:37:06,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:37:06,856 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:37:06,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:37:06,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:37:06,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:37:06,857 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:37:06,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:37:06,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:37:06,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:37:06,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:37:06,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:37:06,858 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 01:37:06,858 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:37:06,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:37:06,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:37:06,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:37:06,859 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-11-30 01:37:07,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:37:07,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:37:07,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:37:07,314 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:37:07,315 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:37:07,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-11-30 01:37:07,373 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/data/d7402afaa/6f37c2aab4ca420b923677c840b7ece3/FLAG5935eed9f [2020-11-30 01:37:07,872 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:37:07,872 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-11-30 01:37:07,881 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/data/d7402afaa/6f37c2aab4ca420b923677c840b7ece3/FLAG5935eed9f [2020-11-30 01:37:08,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/data/d7402afaa/6f37c2aab4ca420b923677c840b7ece3 [2020-11-30 01:37:08,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:37:08,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:37:08,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:37:08,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:37:08,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:37:08,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:37:08" (1/1) ... [2020-11-30 01:37:08,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@429c387c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08, skipping insertion in model container [2020-11-30 01:37:08,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:37:08" (1/1) ... [2020-11-30 01:37:08,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:37:08,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:37:08,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:37:08,459 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:37:08,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:37:08,533 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:37:08,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08 WrapperNode [2020-11-30 01:37:08,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:37:08,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:37:08,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:37:08,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:37:08,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08" (1/1) ... [2020-11-30 01:37:08,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08" (1/1) ... [2020-11-30 01:37:08,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:37:08,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:37:08,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:37:08,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:37:08,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08" (1/1) ... [2020-11-30 01:37:08,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08" (1/1) ... [2020-11-30 01:37:08,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08" (1/1) ... [2020-11-30 01:37:08,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08" (1/1) ... [2020-11-30 01:37:08,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08" (1/1) ... [2020-11-30 01:37:08,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08" (1/1) ... [2020-11-30 01:37:08,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08" (1/1) ... [2020-11-30 01:37:08,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:37:08,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:37:08,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:37:08,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:37:08,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:37:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:37:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:37:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 01:37:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:37:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:37:08,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:37:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 01:37:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:37:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:37:09,908 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:37:09,908 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 01:37:09,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:37:09 BoogieIcfgContainer [2020-11-30 01:37:09,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:37:09,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:37:09,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:37:09,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:37:09,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:37:08" (1/3) ... [2020-11-30 01:37:09,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6040173b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:37:09, skipping insertion in model container [2020-11-30 01:37:09,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:08" (2/3) ... [2020-11-30 01:37:09,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6040173b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:37:09, skipping insertion in model container [2020-11-30 01:37:09,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:37:09" (3/3) ... [2020-11-30 01:37:09,918 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-11-30 01:37:09,929 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:37:09,933 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:37:09,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:37:09,978 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:37:09,978 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:37:09,978 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:37:09,978 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:37:09,979 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:37:09,979 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:37:09,979 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:37:09,979 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:37:09,992 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-30 01:37:09,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:37:09,997 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:37:09,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:37:09,998 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:37:10,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:37:10,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-11-30 01:37:10,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:37:10,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516184693] [2020-11-30 01:37:10,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 01:37:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:37:10,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:37:10,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:37:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:37:10,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:37:10,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:37:10,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516184693] [2020-11-30 01:37:10,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:37:10,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:37:10,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166354848] [2020-11-30 01:37:10,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:37:10,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:37:10,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:37:10,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:37:10,303 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-30 01:37:10,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:37:10,321 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-11-30 01:37:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:37:10,322 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-30 01:37:10,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:37:10,331 INFO L225 Difference]: With dead ends: 65 [2020-11-30 01:37:10,331 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 01:37:10,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:37:10,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 01:37:10,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 01:37:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 01:37:10,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-11-30 01:37:10,366 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-11-30 01:37:10,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:37:10,366 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-30 01:37:10,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:37:10,367 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-11-30 01:37:10,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:37:10,367 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:37:10,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:37:10,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:37:10,587 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:37:10,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:37:10,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-11-30 01:37:10,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:37:10,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658343712] [2020-11-30 01:37:10,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 01:37:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:37:10,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 01:37:10,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:37:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:37:10,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:37:15,312 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-11-30 01:37:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:37:15,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658343712] [2020-11-30 01:37:15,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:37:15,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 01:37:15,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955945880] [2020-11-30 01:37:15,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:37:15,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:37:15,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:37:15,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:37:15,336 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 10 states. [2020-11-30 01:37:16,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:37:16,442 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-11-30 01:37:16,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:37:16,443 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-11-30 01:37:16,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:37:16,444 INFO L225 Difference]: With dead ends: 35 [2020-11-30 01:37:16,444 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 01:37:16,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-30 01:37:16,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 01:37:16,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 01:37:16,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 01:37:16,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-11-30 01:37:16,450 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2020-11-30 01:37:16,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:37:16,451 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-11-30 01:37:16,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:37:16,451 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-11-30 01:37:16,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 01:37:16,452 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:37:16,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:37:16,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:37:16,653 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:37:16,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:37:16,653 INFO L82 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2020-11-30 01:37:16,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:37:16,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697984355] [2020-11-30 01:37:16,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 01:37:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:37:16,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:37:16,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:37:16,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:37:16,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:37:17,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:37:17,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697984355] [2020-11-30 01:37:17,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:37:17,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 01:37:17,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434512474] [2020-11-30 01:37:17,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:37:17,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:37:17,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:37:17,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:37:17,029 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 8 states. [2020-11-30 01:37:17,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:37:17,192 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-11-30 01:37:17,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:37:17,192 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-11-30 01:37:17,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:37:17,192 INFO L225 Difference]: With dead ends: 30 [2020-11-30 01:37:17,192 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:37:17,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:37:17,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:37:17,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:37:17,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:37:17,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:37:17,194 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-11-30 01:37:17,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:37:17,194 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:37:17,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:37:17,194 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:37:17,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:37:17,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:37:17,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:37:17,519 INFO L277 CegarLoopResult]: At program point L102(lines 86 103) the Hoare annotation is: true [2020-11-30 01:37:17,519 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 01:37:17,519 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 01:37:17,519 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 01:37:17,520 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:37:17,520 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:37:17,520 INFO L274 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-11-30 01:37:17,520 INFO L270 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-11-30 01:37:17,520 INFO L274 CegarLoopResult]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2020-11-30 01:37:17,520 INFO L274 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2020-11-30 01:37:17,520 INFO L270 CegarLoopResult]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2020-11-30 01:37:17,520 INFO L274 CegarLoopResult]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2020-11-30 01:37:17,521 INFO L274 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-11-30 01:37:17,521 INFO L274 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-11-30 01:37:17,521 INFO L274 CegarLoopResult]: For program point L97(lines 97 100) no Hoare annotation was computed. [2020-11-30 01:37:17,521 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-11-30 01:37:17,521 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-11-30 01:37:17,521 INFO L274 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-11-30 01:37:17,521 INFO L274 CegarLoopResult]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2020-11-30 01:37:17,521 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:37:17,522 INFO L274 CegarLoopResult]: For program point L57(lines 57 61) no Hoare annotation was computed. [2020-11-30 01:37:17,522 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 01:37:17,522 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-11-30 01:37:17,522 INFO L274 CegarLoopResult]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2020-11-30 01:37:17,522 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-11-30 01:37:17,522 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2020-11-30 01:37:17,522 INFO L274 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2020-11-30 01:37:17,522 INFO L270 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2020-11-30 01:37:17,523 INFO L274 CegarLoopResult]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2020-11-30 01:37:17,523 INFO L274 CegarLoopResult]: For program point L66(lines 66 75) no Hoare annotation was computed. [2020-11-30 01:37:17,523 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:37:17,523 INFO L270 CegarLoopResult]: At program point L83(lines 19 84) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-11-30 01:37:17,523 INFO L274 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-11-30 01:37:17,523 INFO L274 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-11-30 01:37:17,531 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,538 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,538 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,538 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,538 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,538 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,538 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,539 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,539 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,540 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,541 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,541 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,543 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,543 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,543 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,543 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,544 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,544 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:37:17 BoogieIcfgContainer [2020-11-30 01:37:17,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:37:17,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:37:17,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:37:17,552 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:37:17,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:37:09" (3/4) ... [2020-11-30 01:37:17,557 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:37:17,570 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-30 01:37:17,571 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 01:37:17,571 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:37:17,571 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:37:17,599 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-11-30 01:37:17,601 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-11-30 01:37:17,645 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_263bcd90-158e-4a45-b93f-badbb29a0756/bin/utaipan/witness.graphml [2020-11-30 01:37:17,648 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:37:17,650 INFO L168 Benchmark]: Toolchain (without parser) took 9394.85 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 34.9 MB in the beginning and 33.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:37:17,651 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 38.4 MB in the beginning and 38.3 MB in the end (delta: 38.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:37:17,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.44 ms. Allocated memory is still 56.6 MB. Free memory was 34.7 MB in the beginning and 39.3 MB in the end (delta: -4.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:37:17,652 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.86 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 37.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:37:17,652 INFO L168 Benchmark]: Boogie Preprocessor took 70.60 ms. Allocated memory is still 56.6 MB. Free memory was 37.5 MB in the beginning and 35.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:37:17,653 INFO L168 Benchmark]: RCFGBuilder took 1244.96 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 35.8 MB in the beginning and 50.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:37:17,654 INFO L168 Benchmark]: TraceAbstraction took 7634.90 ms. Allocated memory is still 75.5 MB. Free memory was 50.0 MB in the beginning and 36.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:37:17,654 INFO L168 Benchmark]: Witness Printer took 101.78 ms. Allocated memory is still 75.5 MB. Free memory was 36.9 MB in the beginning and 33.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:37:17,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 38.4 MB in the beginning and 38.3 MB in the end (delta: 38.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.44 ms. Allocated memory is still 56.6 MB. Free memory was 34.7 MB in the beginning and 39.3 MB in the end (delta: -4.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.86 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 37.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.60 ms. Allocated memory is still 56.6 MB. Free memory was 37.5 MB in the beginning and 35.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1244.96 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 35.8 MB in the beginning and 50.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7634.90 ms. Allocated memory is still 75.5 MB. Free memory was 50.0 MB in the beginning and 36.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Witness Printer took 101.78 ms. Allocated memory is still 75.5 MB. Free memory was 36.9 MB in the beginning and 33.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2020-11-30 01:37:17,672 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,673 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,673 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,673 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,673 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,673 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,674 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,674 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,674 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,674 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,674 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,675 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,675 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,675 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,676 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,676 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2020-11-30 01:37:17,679 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,685 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,685 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,686 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2020-11-30 01:37:17,687 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,687 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,687 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,692 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:37:17,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:37:17,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 52 SDslu, 129 SDs, 0 SdLazy, 52 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.9s 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 73 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 76 ConstructedInterpolants, 5 QuantifiedInterpolants, 4376 SizeOfPredicates, 17 NumberOfNonLiveVariables, 158 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...