./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.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_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/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 941f84fd12bbb635098ac1c65472cdf78fad6ad9 ................................................................................................................................................................................................................................................................................................................. 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_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/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 941f84fd12bbb635098ac1c65472cdf78fad6ad9 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:37:24,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:37:24,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:37:25,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:37:25,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:37:25,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:37:25,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:37:25,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:37:25,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:37:25,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:37:25,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:37:25,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:37:25,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:37:25,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:37:25,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:37:25,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:37:25,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:37:25,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:37:25,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:37:25,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:37:25,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:37:25,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:37:25,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:37:25,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:37:25,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:37:25,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:37:25,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:37:25,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:37:25,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:37:25,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:37:25,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:37:25,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:37:25,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:37:25,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:37:25,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:37:25,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:37:25,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:37:25,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:37:25,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:37:25,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:37:25,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:37:25,094 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:37:25,124 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:37:25,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:37:25,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:37:25,126 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:37:25,127 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:37:25,127 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:37:25,128 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:37:25,128 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:37:25,129 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:37:25,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:37:25,129 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:37:25,130 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:37:25,130 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:37:25,130 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:37:25,131 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:37:25,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:37:25,132 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:37:25,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:37:25,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:37:25,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:37:25,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:37:25,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:37:25,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:37:25,134 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:37:25,134 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:37:25,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:37:25,135 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:37:25,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:37:25,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:37:25,135 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:37:25,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:37:25,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:37:25,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:37:25,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:37:25,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:37:25,137 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:37:25,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:37:25,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:37:25,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:37:25,138 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:37:25,138 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_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f84fd12bbb635098ac1c65472cdf78fad6ad9 [2020-11-28 07:37:25,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:37:25,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:37:25,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:37:25,477 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:37:25,478 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:37:25,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-11-28 07:37:25,555 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/data/5e24c495a/12bbe38078d948789b9096edaba87a62/FLAG6483ede42 [2020-11-28 07:37:26,019 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:37:26,019 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-11-28 07:37:26,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/data/5e24c495a/12bbe38078d948789b9096edaba87a62/FLAG6483ede42 [2020-11-28 07:37:26,418 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/data/5e24c495a/12bbe38078d948789b9096edaba87a62 [2020-11-28 07:37:26,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:37:26,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:37:26,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:26,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:37:26,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:37:26,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4667b936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26, skipping insertion in model container [2020-11-28 07:37:26,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:37:26,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:37:26,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:26,725 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:37:26,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:26,789 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:37:26,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26 WrapperNode [2020-11-28 07:37:26,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:26,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:37:26,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:37:26,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:37:26,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:37:26,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:37:26,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:37:26,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:37:26,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... [2020-11-28 07:37:26,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:37:26,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:37:26,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:37:26,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:37:26,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/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 [2020-11-28 07:37:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:37:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:37:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 07:37:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:37:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 07:37:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:37:27,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:37:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:37:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:37:27,804 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:37:27,805 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-28 07:37:27,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:27 BoogieIcfgContainer [2020-11-28 07:37:27,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:37:27,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:37:27,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:37:27,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:37:27,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:37:26" (1/3) ... [2020-11-28 07:37:27,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49eaeea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:37:27, skipping insertion in model container [2020-11-28 07:37:27,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:26" (2/3) ... [2020-11-28 07:37:27,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49eaeea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:37:27, skipping insertion in model container [2020-11-28 07:37:27,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:27" (3/3) ... [2020-11-28 07:37:27,818 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2020-11-28 07:37:27,833 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:37:27,839 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:37:27,856 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:37:27,897 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:37:27,898 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:37:27,898 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:37:27,898 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:37:27,898 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:37:27,898 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:37:27,899 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:37:27,899 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:37:27,915 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-28 07:37:27,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 07:37:27,920 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:27,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:27,921 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:27,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:27,927 INFO L82 PathProgramCache]: Analyzing trace with hash -583586413, now seen corresponding path program 1 times [2020-11-28 07:37:27,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:27,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341037409] [2020-11-28 07:37:27,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:28,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341037409] [2020-11-28 07:37:28,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:28,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:37:28,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993477255] [2020-11-28 07:37:28,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:37:28,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:28,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:37:28,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:37:28,090 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-28 07:37:28,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:28,108 INFO L93 Difference]: Finished difference Result 67 states and 107 transitions. [2020-11-28 07:37:28,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:37:28,109 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-28 07:37:28,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:28,119 INFO L225 Difference]: With dead ends: 67 [2020-11-28 07:37:28,120 INFO L226 Difference]: Without dead ends: 32 [2020-11-28 07:37:28,123 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 [2020-11-28 07:37:28,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-28 07:37:28,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-11-28 07:37:28,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-28 07:37:28,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-11-28 07:37:28,160 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 7 [2020-11-28 07:37:28,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:28,160 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-11-28 07:37:28,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:37:28,161 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-11-28 07:37:28,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:37:28,161 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:28,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:28,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:37:28,162 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:28,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:28,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1315399166, now seen corresponding path program 1 times [2020-11-28 07:37:28,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:28,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583629063] [2020-11-28 07:37:28,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:37:28,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:37:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:37:28,253 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:37:28,285 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:37:28,286 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:37:28,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:37:28,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:37:28 BoogieIcfgContainer [2020-11-28 07:37:28,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:37:28,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:37:28,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:37:28,328 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:37:28,328 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:27" (3/4) ... [2020-11-28 07:37:28,332 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:37:28,332 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:37:28,335 INFO L168 Benchmark]: Toolchain (without parser) took 1906.61 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 53.8 MB in the beginning and 80.0 MB in the end (delta: -26.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:28,336 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory was 69.9 MB in the beginning and 69.8 MB in the end (delta: 54.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:28,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.02 ms. Allocated memory is still 90.2 MB. Free memory was 53.7 MB in the beginning and 64.1 MB in the end (delta: -10.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:28,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.79 ms. Allocated memory is still 90.2 MB. Free memory was 64.1 MB in the beginning and 61.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:28,338 INFO L168 Benchmark]: Boogie Preprocessor took 57.04 ms. Allocated memory is still 90.2 MB. Free memory was 61.9 MB in the beginning and 60.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:28,339 INFO L168 Benchmark]: RCFGBuilder took 874.87 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 60.0 MB in the beginning and 68.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:28,340 INFO L168 Benchmark]: TraceAbstraction took 517.85 ms. Allocated memory is still 115.3 MB. Free memory was 68.7 MB in the beginning and 80.0 MB in the end (delta: -11.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:28,340 INFO L168 Benchmark]: Witness Printer took 5.01 ms. Allocated memory is still 115.3 MB. Free memory is still 80.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:28,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory was 69.9 MB in the beginning and 69.8 MB in the end (delta: 54.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 356.02 ms. Allocated memory is still 90.2 MB. Free memory was 53.7 MB in the beginning and 64.1 MB in the end (delta: -10.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.79 ms. Allocated memory is still 90.2 MB. Free memory was 64.1 MB in the beginning and 61.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.04 ms. Allocated memory is still 90.2 MB. Free memory was 61.9 MB in the beginning and 60.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 874.87 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 60.0 MB in the beginning and 68.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 517.85 ms. Allocated memory is still 115.3 MB. Free memory was 68.7 MB in the beginning and 80.0 MB in the end (delta: -11.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.01 ms. Allocated memory is still 115.3 MB. Free memory is still 80.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 147, overapproximation of someBinaryArithmeticFLOAToperation at line 119, overapproximation of bitwiseAnd at line 118. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; [L156] float x = -1.0f / 0.0f; [L108] float y, z; [L109] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L157] float res = __ieee754_log10f(x); [L147] return x != x; [L160] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0970b.c", 3, "reach_error") VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 [2020-11-28 07:37:31,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:37:31,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:37:31,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:37:31,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:37:31,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:37:31,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:37:31,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:37:31,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:37:31,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:37:31,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:37:31,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:37:31,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:37:31,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:37:31,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:37:31,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:37:31,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:37:31,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:37:31,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:37:31,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:37:31,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:37:31,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:37:31,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:37:31,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:37:31,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:37:31,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:37:31,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:37:31,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:37:31,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:37:31,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:37:31,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:37:31,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:37:31,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:37:31,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:37:31,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:37:31,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:37:31,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:37:31,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:37:31,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:37:31,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:37:31,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:37:31,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:37:31,412 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:37:31,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:37:31,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:37:31,415 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:37:31,415 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:37:31,415 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:37:31,415 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:37:31,416 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:37:31,416 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:37:31,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:37:31,418 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:37:31,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:37:31,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:37:31,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:37:31,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:37:31,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:37:31,419 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:37:31,420 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:37:31,420 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:37:31,420 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:37:31,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:37:31,421 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:37:31,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:37:31,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:37:31,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:37:31,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:37:31,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:37:31,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:37:31,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:37:31,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:37:31,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:37:31,423 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:37:31,423 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:37:31,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:37:31,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:37:31,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:37:31,424 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_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f84fd12bbb635098ac1c65472cdf78fad6ad9 [2020-11-28 07:37:31,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:37:31,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:37:31,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:37:31,821 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:37:31,823 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:37:31,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-11-28 07:37:31,900 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/data/e4db40e10/b98e06d83c8c4b22b191255b4225afff/FLAG7f7d53f86 [2020-11-28 07:37:32,408 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:37:32,413 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-11-28 07:37:32,424 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/data/e4db40e10/b98e06d83c8c4b22b191255b4225afff/FLAG7f7d53f86 [2020-11-28 07:37:32,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/data/e4db40e10/b98e06d83c8c4b22b191255b4225afff [2020-11-28 07:37:32,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:37:32,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:37:32,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:32,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:37:32,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:37:32,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:32" (1/1) ... [2020-11-28 07:37:32,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a9d75a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:32, skipping insertion in model container [2020-11-28 07:37:32,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:37:32" (1/1) ... [2020-11-28 07:37:32,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:37:32,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:37:33,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:33,084 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:37:33,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:37:33,218 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:37:33,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:33 WrapperNode [2020-11-28 07:37:33,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:37:33,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:37:33,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:37:33,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:37:33,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:33" (1/1) ... [2020-11-28 07:37:33,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:33" (1/1) ... [2020-11-28 07:37:33,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:37:33,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:37:33,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:37:33,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:37:33,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:33" (1/1) ... [2020-11-28 07:37:33,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:33" (1/1) ... [2020-11-28 07:37:33,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:33" (1/1) ... [2020-11-28 07:37:33,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:33" (1/1) ... [2020-11-28 07:37:33,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:33" (1/1) ... [2020-11-28 07:37:33,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:33" (1/1) ... [2020-11-28 07:37:33,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:33" (1/1) ... [2020-11-28 07:37:33,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:37:33,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:37:33,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:37:33,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:37:33,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/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 [2020-11-28 07:37:33,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:37:33,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:37:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-28 07:37:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 07:37:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:37:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:37:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-28 07:37:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 07:37:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:37:51,521 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:37:51,522 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-28 07:37:51,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:51 BoogieIcfgContainer [2020-11-28 07:37:51,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:37:51,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:37:51,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:37:51,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:37:51,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:37:32" (1/3) ... [2020-11-28 07:37:51,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d33f073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:37:51, skipping insertion in model container [2020-11-28 07:37:51,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:37:33" (2/3) ... [2020-11-28 07:37:51,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d33f073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:37:51, skipping insertion in model container [2020-11-28 07:37:51,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:51" (3/3) ... [2020-11-28 07:37:51,536 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2020-11-28 07:37:51,548 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:37:51,553 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:37:51,567 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:37:51,595 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:37:51,596 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:37:51,596 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:37:51,596 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:37:51,596 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:37:51,597 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:37:51,597 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:37:51,597 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:37:51,612 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-11-28 07:37:51,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:37:51,618 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:51,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:51,619 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:51,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:51,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2020-11-28 07:37:51,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:37:51,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376170695] [2020-11-28 07:37:51,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/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 [2020-11-28 07:37:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:52,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:37:52,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:37:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:52,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:37:52,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:52,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376170695] [2020-11-28 07:37:52,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:52,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:37:52,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966960369] [2020-11-28 07:37:52,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:37:52,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:37:52,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:37:52,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:37:52,642 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-11-28 07:37:52,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:52,673 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2020-11-28 07:37:52,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:37:52,674 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-28 07:37:52,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:52,692 INFO L225 Difference]: With dead ends: 87 [2020-11-28 07:37:52,693 INFO L226 Difference]: Without dead ends: 41 [2020-11-28 07:37:52,697 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 [2020-11-28 07:37:52,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-28 07:37:52,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-28 07:37:52,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-28 07:37:52,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-11-28 07:37:52,732 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2020-11-28 07:37:52,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:52,732 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-11-28 07:37:52,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:37:52,733 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-11-28 07:37:52,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:37:52,733 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:52,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:52,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:37:52,944 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:52,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:52,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2020-11-28 07:37:52,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:37:52,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576399800] [2020-11-28 07:37:52,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/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 [2020-11-28 07:37:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:53,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 07:37:53,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:37:53,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:53,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:37:53,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:53,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576399800] [2020-11-28 07:37:53,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:53,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-28 07:37:53,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757942843] [2020-11-28 07:37:53,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:37:53,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:37:53,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:37:53,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:37:53,911 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand 6 states. [2020-11-28 07:37:54,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:54,438 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2020-11-28 07:37:54,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:37:54,444 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-11-28 07:37:54,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:54,444 INFO L225 Difference]: With dead ends: 46 [2020-11-28 07:37:54,444 INFO L226 Difference]: Without dead ends: 12 [2020-11-28 07:37:54,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:37:54,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-28 07:37:54,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-28 07:37:54,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-28 07:37:54,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-11-28 07:37:54,450 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-11-28 07:37:54,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:54,450 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-11-28 07:37:54,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:37:54,451 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-11-28 07:37:54,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 07:37:54,452 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:54,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:54,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:37:54,666 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:54,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:54,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2020-11-28 07:37:54,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:37:54,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766859651] [2020-11-28 07:37:54,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/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 [2020-11-28 07:37:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:55,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 07:37:55,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:37:55,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:37:55,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:02,167 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 16 [2020-11-28 07:38:02,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:02,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766859651] [2020-11-28 07:38:02,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:02,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-28 07:38:02,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95902671] [2020-11-28 07:38:02,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 07:38:02,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:38:02,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 07:38:02,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-28 07:38:02,183 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 10 states. [2020-11-28 07:38:02,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:02,871 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-11-28 07:38:02,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 07:38:02,871 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-11-28 07:38:02,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:02,871 INFO L225 Difference]: With dead ends: 12 [2020-11-28 07:38:02,872 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:38:02,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-28 07:38:02,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:38:02,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:38:02,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:38:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:38:02,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-28 07:38:02,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:02,873 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:38:02,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 07:38:02,873 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:38:02,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:38:03,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:38:03,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:38:03,253 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2020-11-28 07:38:03,415 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2020-11-28 07:38:03,418 INFO L274 CegarLoopResult]: For program point L93(lines 93 96) no Hoare annotation was computed. [2020-11-28 07:38:03,418 INFO L274 CegarLoopResult]: For program point L60(lines 60 65) no Hoare annotation was computed. [2020-11-28 07:38:03,418 INFO L274 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2020-11-28 07:38:03,419 INFO L274 CegarLoopResult]: For program point L85(lines 85 97) no Hoare annotation was computed. [2020-11-28 07:38:03,419 INFO L270 CegarLoopResult]: At program point L143(lines 107 144) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)))) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-28 07:38:03,419 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 07:38:03,419 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 07:38:03,419 INFO L274 CegarLoopResult]: For program point L160(lines 160 163) no Hoare annotation was computed. [2020-11-28 07:38:03,419 INFO L274 CegarLoopResult]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2020-11-28 07:38:03,419 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:38:03,419 INFO L270 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2020-11-28 07:38:03,420 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:38:03,420 INFO L274 CegarLoopResult]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2020-11-28 07:38:03,420 INFO L270 CegarLoopResult]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-28 07:38:03,420 INFO L274 CegarLoopResult]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2020-11-28 07:38:03,420 INFO L274 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-11-28 07:38:03,420 INFO L274 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-11-28 07:38:03,420 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-11-28 07:38:03,420 INFO L274 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2020-11-28 07:38:03,420 INFO L270 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2020-11-28 07:38:03,420 INFO L274 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2020-11-28 07:38:03,421 INFO L270 CegarLoopResult]: At program point L96(lines 22 98) the Hoare annotation is: false [2020-11-28 07:38:03,421 INFO L274 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2020-11-28 07:38:03,421 INFO L274 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2020-11-28 07:38:03,421 INFO L274 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-11-28 07:38:03,421 INFO L270 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-28 07:38:03,421 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:38:03,421 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 07:38:03,421 INFO L277 CegarLoopResult]: At program point L165(lines 149 166) the Hoare annotation is: true [2020-11-28 07:38:03,422 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-11-28 07:38:03,422 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:38:03,422 INFO L274 CegarLoopResult]: For program point L124(lines 124 132) no Hoare annotation was computed. [2020-11-28 07:38:03,422 INFO L274 CegarLoopResult]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2020-11-28 07:38:03,422 INFO L274 CegarLoopResult]: For program point L58(lines 58 74) no Hoare annotation was computed. [2020-11-28 07:38:03,422 INFO L274 CegarLoopResult]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2020-11-28 07:38:03,422 INFO L270 CegarLoopResult]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2020-11-28 07:38:03,422 INFO L274 CegarLoopResult]: For program point L59(lines 59 66) no Hoare annotation was computed. [2020-11-28 07:38:03,422 INFO L274 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-11-28 07:38:03,422 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2020-11-28 07:38:03,422 INFO L274 CegarLoopResult]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2020-11-28 07:38:03,423 INFO L274 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-11-28 07:38:03,423 INFO L270 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2020-11-28 07:38:03,423 INFO L274 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-11-28 07:38:03,423 INFO L274 CegarLoopResult]: For program point L68(lines 68 73) no Hoare annotation was computed. [2020-11-28 07:38:03,423 INFO L274 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-11-28 07:38:03,441 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,443 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,444 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,444 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,448 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,453 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,453 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,453 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,454 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,455 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,455 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,455 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,455 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,455 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,459 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,464 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,464 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,466 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,466 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,466 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,468 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,468 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,468 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,469 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,475 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,477 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,477 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,478 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,478 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,478 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,478 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,478 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,492 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,493 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,493 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,493 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,493 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:38:03 BoogieIcfgContainer [2020-11-28 07:38:03,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:38:03,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:38:03,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:38:03,499 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:38:03,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:37:51" (3/4) ... [2020-11-28 07:38:03,502 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:38:03,516 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-11-28 07:38:03,523 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-28 07:38:03,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:38:03,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:38:03,552 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-28 07:38:03,553 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && 1bv32 == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-28 07:38:03,627 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_68aea7a3-4a18-43f0-96c5-fc1e4aac5e4d/bin/utaipan/witness.graphml [2020-11-28 07:38:03,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:38:03,629 INFO L168 Benchmark]: Toolchain (without parser) took 30855.74 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.2 MB in the beginning and 25.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:03,630 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 50.3 MB. Free memory was 32.3 MB in the beginning and 32.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:03,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.83 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.9 MB in the beginning and 41.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:03,630 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.45 ms. Allocated memory is still 60.8 MB. Free memory was 41.1 MB in the beginning and 38.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:03,631 INFO L168 Benchmark]: Boogie Preprocessor took 66.77 ms. Allocated memory is still 60.8 MB. Free memory was 38.6 MB in the beginning and 36.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:03,631 INFO L168 Benchmark]: RCFGBuilder took 18143.35 ms. Allocated memory is still 60.8 MB. Free memory was 36.5 MB in the beginning and 38.3 MB in the end (delta: -1.8 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:03,632 INFO L168 Benchmark]: TraceAbstraction took 11970.08 ms. Allocated memory is still 60.8 MB. Free memory was 37.7 MB in the beginning and 31.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:03,632 INFO L168 Benchmark]: Witness Printer took 128.99 ms. Allocated memory is still 60.8 MB. Free memory was 31.4 MB in the beginning and 25.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:03,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 50.3 MB. Free memory was 32.3 MB in the beginning and 32.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 444.83 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.9 MB in the beginning and 41.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.45 ms. Allocated memory is still 60.8 MB. Free memory was 41.1 MB in the beginning and 38.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.77 ms. Allocated memory is still 60.8 MB. Free memory was 38.6 MB in the beginning and 36.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 18143.35 ms. Allocated memory is still 60.8 MB. Free memory was 36.5 MB in the beginning and 38.3 MB in the end (delta: -1.8 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11970.08 ms. Allocated memory is still 60.8 MB. Free memory was 37.7 MB in the beginning and 31.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * Witness Printer took 128.99 ms. Allocated memory is still 60.8 MB. Free memory was 31.4 MB in the beginning and 25.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 107]: Loop Invariant [2020-11-28 07:38:03,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,657 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,659 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,662 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,662 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2020-11-28 07:38:03,663 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,664 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,664 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,664 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,664 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,665 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,665 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,665 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2020-11-28 07:38:03,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,672 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,673 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,673 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,673 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,673 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,673 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,674 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,674 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,674 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,675 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,675 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,675 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,676 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,676 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,676 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,676 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,676 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,677 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:03,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:38:03,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:03,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && 1bv32 == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 29 SDslu, 20 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 142 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 5 QuantifiedInterpolants, 4134 SizeOfPredicates, 17 NumberOfNonLiveVariables, 177 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...