./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.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_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/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 0c154d02c9b21beef7a386877c7c252d45eb859a ................................................................................................................................................................................................................................................................................................................. 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_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/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 0c154d02c9b21beef7a386877c7c252d45eb859a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:04:03,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:04:03,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:04:03,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:04:03,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:04:03,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:04:03,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:04:03,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:04:03,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:04:03,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:04:03,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:04:03,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:04:03,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:04:03,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:04:03,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:04:03,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:04:03,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:04:03,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:04:03,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:04:03,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:04:03,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:04:03,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:04:03,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:04:03,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:04:03,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:04:03,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:04:03,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:04:03,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:04:03,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:04:03,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:04:03,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:04:03,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:04:03,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:04:03,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:04:03,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:04:03,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:04:03,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:04:03,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:04:03,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:04:03,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:04:03,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:04:03,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:04:03,364 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:04:03,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:04:03,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:04:03,366 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:04:03,366 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:04:03,366 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:04:03,367 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:04:03,367 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:04:03,367 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:04:03,367 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:04:03,368 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:04:03,368 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:04:03,368 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:04:03,368 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:04:03,369 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:04:03,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:04:03,370 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:04:03,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:04:03,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:04:03,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:04:03,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:04:03,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:04:03,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:04:03,372 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:04:03,372 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:04:03,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:04:03,373 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:04:03,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:04:03,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:04:03,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:04:03,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:04:03,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:04:03,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:04:03,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:04:03,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:04:03,375 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:04:03,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:04:03,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:04:03,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:04:03,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:04:03,376 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_f370a93a-63a9-404b-b73f-7f46ee4a7323/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c154d02c9b21beef7a386877c7c252d45eb859a [2020-11-30 02:04:03,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:04:03,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:04:03,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:04:03,712 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:04:03,713 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:04:03,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2020-11-30 02:04:03,823 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/data/1adac304d/ad81a326ce504ba8bd6e0d7d87e839de/FLAG6815694db [2020-11-30 02:04:04,460 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:04:04,461 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2020-11-30 02:04:04,471 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/data/1adac304d/ad81a326ce504ba8bd6e0d7d87e839de/FLAG6815694db [2020-11-30 02:04:04,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/data/1adac304d/ad81a326ce504ba8bd6e0d7d87e839de [2020-11-30 02:04:04,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:04:04,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:04:04,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:04:04,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:04:04,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:04:04,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:04:04" (1/1) ... [2020-11-30 02:04:04,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c417ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:04, skipping insertion in model container [2020-11-30 02:04:04,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:04:04" (1/1) ... [2020-11-30 02:04:04,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:04:04,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:04:05,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:04:05,225 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:04:05,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:04:05,354 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:04:05,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:05 WrapperNode [2020-11-30 02:04:05,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:04:05,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:04:05,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:04:05,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:04:05,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:05" (1/1) ... [2020-11-30 02:04:05,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:05" (1/1) ... [2020-11-30 02:04:05,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:04:05,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:04:05,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:04:05,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:04:05,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:05" (1/1) ... [2020-11-30 02:04:05,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:05" (1/1) ... [2020-11-30 02:04:05,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:05" (1/1) ... [2020-11-30 02:04:05,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:05" (1/1) ... [2020-11-30 02:04:05,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:05" (1/1) ... [2020-11-30 02:04:05,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:05" (1/1) ... [2020-11-30 02:04:05,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:05" (1/1) ... [2020-11-30 02:04:05,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:04:05,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:04:05,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:04:05,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:04:05,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:04:05,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:04:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:04:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 02:04:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 02:04:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 02:04:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:04:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:04:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 02:04:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:04:06,490 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:04:06,492 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-30 02:04:06,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:04:06 BoogieIcfgContainer [2020-11-30 02:04:06,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:04:06,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:04:06,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:04:06,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:04:06,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:04:04" (1/3) ... [2020-11-30 02:04:06,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b0bda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:04:06, skipping insertion in model container [2020-11-30 02:04:06,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:05" (2/3) ... [2020-11-30 02:04:06,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b0bda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:04:06, skipping insertion in model container [2020-11-30 02:04:06,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:04:06" (3/3) ... [2020-11-30 02:04:06,519 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2020-11-30 02:04:06,533 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:04:06,539 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:04:06,583 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:04:06,643 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:04:06,644 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:04:06,645 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:04:06,645 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:04:06,645 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:04:06,645 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:04:06,646 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:04:06,646 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:04:06,666 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-30 02:04:06,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 02:04:06,674 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:04:06,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:04:06,676 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:04:06,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:04:06,684 INFO L82 PathProgramCache]: Analyzing trace with hash -583587374, now seen corresponding path program 1 times [2020-11-30 02:04:06,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:04:06,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752507] [2020-11-30 02:04:06,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:04:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:04:06,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:04:06,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752507] [2020-11-30 02:04:06,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:04:06,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:04:06,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103939001] [2020-11-30 02:04:06,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:04:06,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:04:06,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:04:06,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:04:06,897 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-30 02:04:06,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:04:06,921 INFO L93 Difference]: Finished difference Result 67 states and 107 transitions. [2020-11-30 02:04:06,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:04:06,923 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 02:04:06,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:04:06,933 INFO L225 Difference]: With dead ends: 67 [2020-11-30 02:04:06,933 INFO L226 Difference]: Without dead ends: 32 [2020-11-30 02:04:06,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:04:06,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-30 02:04:06,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-11-30 02:04:06,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-30 02:04:06,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-11-30 02:04:06,981 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 7 [2020-11-30 02:04:06,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:04:06,982 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-11-30 02:04:06,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:04:06,982 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-11-30 02:04:06,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:04:06,983 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:04:06,983 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:04:06,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:04:06,984 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:04:06,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:04:06,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1315398205, now seen corresponding path program 1 times [2020-11-30 02:04:06,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:04:06,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069407816] [2020-11-30 02:04:06,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:04:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:04:07,060 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:04:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:04:07,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:04:07,143 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 02:04:07,143 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:04:07,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:04:07,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:04:07 BoogieIcfgContainer [2020-11-30 02:04:07,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:04:07,227 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:04:07,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:04:07,228 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:04:07,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:04:06" (3/4) ... [2020-11-30 02:04:07,232 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 02:04:07,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:04:07,234 INFO L168 Benchmark]: Toolchain (without parser) took 2449.99 ms. Allocated memory is still 104.9 MB. Free memory was 74.3 MB in the beginning and 56.4 MB in the end (delta: 17.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:04:07,235 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory was 36.5 MB in the beginning and 36.5 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:04:07,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 571.33 ms. Allocated memory is still 104.9 MB. Free memory was 74.3 MB in the beginning and 78.8 MB in the end (delta: -4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:04:07,237 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.37 ms. Allocated memory is still 104.9 MB. Free memory was 78.8 MB in the beginning and 76.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:04:07,238 INFO L168 Benchmark]: Boogie Preprocessor took 44.62 ms. Allocated memory is still 104.9 MB. Free memory was 76.1 MB in the beginning and 74.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:04:07,239 INFO L168 Benchmark]: RCFGBuilder took 1013.46 ms. Allocated memory is still 104.9 MB. Free memory was 74.0 MB in the beginning and 80.9 MB in the end (delta: -6.9 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:04:07,240 INFO L168 Benchmark]: TraceAbstraction took 718.21 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 57.2 MB in the end (delta: 23.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 02:04:07,240 INFO L168 Benchmark]: Witness Printer took 4.85 ms. Allocated memory is still 104.9 MB. Free memory was 57.2 MB in the beginning and 56.4 MB in the end (delta: 768.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:04:07,245 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory was 36.5 MB in the beginning and 36.5 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 571.33 ms. Allocated memory is still 104.9 MB. Free memory was 74.3 MB in the beginning and 78.8 MB in the end (delta: -4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.37 ms. Allocated memory is still 104.9 MB. Free memory was 78.8 MB in the beginning and 76.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.62 ms. Allocated memory is still 104.9 MB. Free memory was 76.1 MB in the beginning and 74.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1013.46 ms. Allocated memory is still 104.9 MB. Free memory was 74.0 MB in the beginning and 80.9 MB in the end (delta: -6.9 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 718.21 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 57.2 MB in the end (delta: 23.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.85 ms. Allocated memory is still 104.9 MB. Free memory was 57.2 MB in the beginning and 56.4 MB in the end (delta: 768.3 kB). Peak memory consumption was 2.1 MB. 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 146, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 117. Possible FailurePath: [L13-L17] 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; [L19] static const float zero_log = 0.0; [L99-L102] 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; [L104] static const float zero = 0.0; [L155] float x = 0.0f / 0.0f; [L107] float y, z; [L108] __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] [L111] ieee_float_shape_type gf_u; [L112] gf_u.value = (x) [L113] EXPR gf_u.word [L113] (hx) = gf_u.word [L116] 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] [L117] COND TRUE ((hx & 0x7fffffff) == 0) [L118] 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] [L156] float res = __ieee754_log10f(x); [L146] return x != x; [L159] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0971.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: 0.5s, 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 [2020-11-30 02:04:10,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:04:10,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:04:10,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:04:10,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:04:10,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:04:10,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:04:10,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:04:10,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:04:10,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:04:10,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:04:10,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:04:10,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:04:10,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:04:10,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:04:10,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:04:10,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:04:10,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:04:10,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:04:10,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:04:10,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:04:10,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:04:10,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:04:10,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:04:10,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:04:10,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:04:10,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:04:10,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:04:10,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:04:10,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:04:10,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:04:10,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:04:10,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:04:10,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:04:10,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:04:10,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:04:10,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:04:10,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:04:10,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:04:10,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:04:10,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:04:10,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 02:04:10,485 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:04:10,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:04:10,489 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:04:10,489 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:04:10,489 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:04:10,490 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:04:10,490 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:04:10,490 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:04:10,490 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:04:10,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:04:10,493 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:04:10,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:04:10,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:04:10,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:04:10,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:04:10,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:04:10,495 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:04:10,495 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 02:04:10,496 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 02:04:10,496 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:04:10,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:04:10,496 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:04:10,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:04:10,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:04:10,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 02:04:10,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:04:10,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:04:10,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:04:10,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:04:10,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:04:10,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:04:10,499 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 02:04:10,499 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 02:04:10,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:04:10,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:04:10,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:04:10,500 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_f370a93a-63a9-404b-b73f-7f46ee4a7323/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c154d02c9b21beef7a386877c7c252d45eb859a [2020-11-30 02:04:10,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:04:11,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:04:11,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:04:11,024 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:04:11,025 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:04:11,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2020-11-30 02:04:11,119 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/data/07f9a8873/39e9178b1fd64e479005ed77153df4bd/FLAG7a77437b7 [2020-11-30 02:04:11,807 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:04:11,808 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2020-11-30 02:04:11,820 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/data/07f9a8873/39e9178b1fd64e479005ed77153df4bd/FLAG7a77437b7 [2020-11-30 02:04:12,137 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/data/07f9a8873/39e9178b1fd64e479005ed77153df4bd [2020-11-30 02:04:12,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:04:12,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:04:12,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:04:12,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:04:12,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:04:12,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:04:12" (1/1) ... [2020-11-30 02:04:12,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3ac5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12, skipping insertion in model container [2020-11-30 02:04:12,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:04:12" (1/1) ... [2020-11-30 02:04:12,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:04:12,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:04:12,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:04:12,452 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:04:12,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:04:12,538 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:04:12,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12 WrapperNode [2020-11-30 02:04:12,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:04:12,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:04:12,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:04:12,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:04:12,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12" (1/1) ... [2020-11-30 02:04:12,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12" (1/1) ... [2020-11-30 02:04:12,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:04:12,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:04:12,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:04:12,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:04:12,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12" (1/1) ... [2020-11-30 02:04:12,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12" (1/1) ... [2020-11-30 02:04:12,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12" (1/1) ... [2020-11-30 02:04:12,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12" (1/1) ... [2020-11-30 02:04:12,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12" (1/1) ... [2020-11-30 02:04:12,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12" (1/1) ... [2020-11-30 02:04:12,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12" (1/1) ... [2020-11-30 02:04:12,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:04:12,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:04:12,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:04:12,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:04:12,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:04:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 02:04:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:04:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 02:04:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 02:04:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:04:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:04:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 02:04:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 02:04:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:04:31,517 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:04:31,517 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-30 02:04:31,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:04:31 BoogieIcfgContainer [2020-11-30 02:04:31,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:04:31,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:04:31,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:04:31,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:04:31,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:04:12" (1/3) ... [2020-11-30 02:04:31,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5e842b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:04:31, skipping insertion in model container [2020-11-30 02:04:31,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:04:12" (2/3) ... [2020-11-30 02:04:31,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5e842b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:04:31, skipping insertion in model container [2020-11-30 02:04:31,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:04:31" (3/3) ... [2020-11-30 02:04:31,531 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2020-11-30 02:04:31,544 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:04:31,550 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:04:31,565 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:04:31,596 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:04:31,596 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:04:31,596 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:04:31,596 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:04:31,597 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:04:31,597 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:04:31,597 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:04:31,597 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:04:31,624 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-11-30 02:04:31,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 02:04:31,631 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:04:31,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:04:31,632 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:04:31,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:04:31,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2020-11-30 02:04:31,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:04:31,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629214397] [2020-11-30 02:04:31,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 02:04:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:04:32,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 02:04:32,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:04:32,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:04:32,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:04:32,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:04:32,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629214397] [2020-11-30 02:04:32,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:04:32,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 02:04:32,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883550557] [2020-11-30 02:04:32,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:04:32,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:04:32,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:04:32,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:04:32,839 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-11-30 02:04:32,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:04:32,859 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2020-11-30 02:04:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:04:32,861 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-30 02:04:32,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:04:32,872 INFO L225 Difference]: With dead ends: 87 [2020-11-30 02:04:32,872 INFO L226 Difference]: Without dead ends: 41 [2020-11-30 02:04:32,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:04:32,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-30 02:04:32,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-30 02:04:32,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-30 02:04:32,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-11-30 02:04:32,923 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2020-11-30 02:04:32,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:04:32,924 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-11-30 02:04:32,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:04:32,924 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-11-30 02:04:32,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 02:04:32,925 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:04:32,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:04:33,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 02:04:33,139 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:04:33,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:04:33,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2020-11-30 02:04:33,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:04:33,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27365427] [2020-11-30 02:04:33,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 02:04:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:04:34,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 02:04:34,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:04:34,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:04:34,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:04:34,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:04:34,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27365427] [2020-11-30 02:04:34,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:04:34,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-30 02:04:34,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727633596] [2020-11-30 02:04:34,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 02:04:34,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:04:34,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 02:04:34,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:04:34,359 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand 6 states. [2020-11-30 02:04:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:04:35,756 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2020-11-30 02:04:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:04:35,758 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-11-30 02:04:35,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:04:35,759 INFO L225 Difference]: With dead ends: 51 [2020-11-30 02:04:35,759 INFO L226 Difference]: Without dead ends: 46 [2020-11-30 02:04:35,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-30 02:04:35,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-30 02:04:35,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2020-11-30 02:04:35,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-30 02:04:35,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2020-11-30 02:04:35,772 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 10 [2020-11-30 02:04:35,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:04:35,773 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2020-11-30 02:04:35,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 02:04:35,773 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2020-11-30 02:04:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 02:04:35,774 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:04:35,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:04:35,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 02:04:35,987 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:04:35,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:04:35,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2020-11-30 02:04:35,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:04:35,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254658726] [2020-11-30 02:04:35,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 02:04:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:04:36,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 02:04:36,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:04:37,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:04:37,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:04:43,348 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 13 [2020-11-30 02:04:43,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:04:43,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254658726] [2020-11-30 02:04:43,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:04:43,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 02:04:43,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798093311] [2020-11-30 02:04:43,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 02:04:43,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:04:43,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 02:04:43,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-30 02:04:43,382 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand 10 states. [2020-11-30 02:05:07,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:05:07,286 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2020-11-30 02:05:07,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 02:05:07,336 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-11-30 02:05:07,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:05:07,338 INFO L225 Difference]: With dead ends: 47 [2020-11-30 02:05:07,338 INFO L226 Difference]: Without dead ends: 42 [2020-11-30 02:05:07,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-30 02:05:07,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-30 02:05:07,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-11-30 02:05:07,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-30 02:05:07,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2020-11-30 02:05:07,350 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 11 [2020-11-30 02:05:07,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:05:07,350 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2020-11-30 02:05:07,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 02:05:07,351 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2020-11-30 02:05:07,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 02:05:07,352 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:05:07,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:05:07,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 02:05:07,553 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:05:07,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:05:07,554 INFO L82 PathProgramCache]: Analyzing trace with hash -256490092, now seen corresponding path program 1 times [2020-11-30 02:05:07,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:05:07,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045073104] [2020-11-30 02:05:07,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 02:05:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:05:08,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 02:05:08,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:05:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:05:08,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:05:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:05:09,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045073104] [2020-11-30 02:05:09,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:05:09,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 02:05:09,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483873766] [2020-11-30 02:05:09,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 02:05:09,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:05:09,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 02:05:09,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-30 02:05:09,033 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand 8 states. [2020-11-30 02:05:09,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:05:09,178 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2020-11-30 02:05:09,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 02:05:09,179 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-11-30 02:05:09,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:05:09,179 INFO L225 Difference]: With dead ends: 41 [2020-11-30 02:05:09,179 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:05:09,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-30 02:05:09,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:05:09,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:05:09,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:05:09,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:05:09,181 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-11-30 02:05:09,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:05:09,181 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:05:09,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 02:05:09,181 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:05:09,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:05:09,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 02:05:09,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:05:09,706 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 27 [2020-11-30 02:05:09,843 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 24 [2020-11-30 02:05:09,847 INFO L274 CegarLoopResult]: For program point L159(lines 159 162) no Hoare annotation was computed. [2020-11-30 02:05:09,847 INFO L274 CegarLoopResult]: For program point L126-1(lines 126 130) no Hoare annotation was computed. [2020-11-30 02:05:09,848 INFO L270 CegarLoopResult]: At program point L126-2(lines 126 130) the Hoare annotation is: false [2020-11-30 02:05:09,848 INFO L274 CegarLoopResult]: For program point L110-1(lines 110 114) no Hoare annotation was computed. [2020-11-30 02:05:09,848 INFO L270 CegarLoopResult]: At program point L110-2(lines 110 114) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_log10f_~x) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-30 02:05:09,848 INFO L274 CegarLoopResult]: For program point L110-3(lines 110 114) no Hoare annotation was computed. [2020-11-30 02:05:09,848 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 02:05:09,848 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 02:05:09,848 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 02:05:09,849 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:05:09,849 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 02:05:09,849 INFO L274 CegarLoopResult]: For program point L119(lines 119 120) no Hoare annotation was computed. [2020-11-30 02:05:09,849 INFO L274 CegarLoopResult]: For program point L86(lines 86 90) no Hoare annotation was computed. [2020-11-30 02:05:09,849 INFO L274 CegarLoopResult]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2020-11-30 02:05:09,849 INFO L270 CegarLoopResult]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2020-11-30 02:05:09,849 INFO L274 CegarLoopResult]: For program point L136-3(lines 136 140) no Hoare annotation was computed. [2020-11-30 02:05:09,849 INFO L270 CegarLoopResult]: At program point L95(lines 21 97) the Hoare annotation is: false [2020-11-30 02:05:09,849 INFO L274 CegarLoopResult]: For program point L38(lines 38 46) no Hoare annotation was computed. [2020-11-30 02:05:09,849 INFO L274 CegarLoopResult]: For program point L38-1(lines 38 46) no Hoare annotation was computed. [2020-11-30 02:05:09,850 INFO L274 CegarLoopResult]: For program point L121(lines 121 122) no Hoare annotation was computed. [2020-11-30 02:05:09,850 INFO L270 CegarLoopResult]: At program point L146(line 146) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (not (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10f_~hx~0) (_ bv0 32))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_log10f_~x) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-30 02:05:09,850 INFO L277 CegarLoopResult]: At program point L164(lines 148 165) the Hoare annotation is: true [2020-11-30 02:05:09,850 INFO L274 CegarLoopResult]: For program point L32(lines 32 33) no Hoare annotation was computed. [2020-11-30 02:05:09,850 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 02:05:09,850 INFO L274 CegarLoopResult]: For program point L123(lines 123 131) no Hoare annotation was computed. [2020-11-30 02:05:09,850 INFO L274 CegarLoopResult]: For program point L123-1(lines 123 131) no Hoare annotation was computed. [2020-11-30 02:05:09,851 INFO L274 CegarLoopResult]: For program point L57(lines 57 73) no Hoare annotation was computed. [2020-11-30 02:05:09,851 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 02:05:09,851 INFO L274 CegarLoopResult]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2020-11-30 02:05:09,851 INFO L270 CegarLoopResult]: At program point L41-2(lines 41 45) the Hoare annotation is: false [2020-11-30 02:05:09,851 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:05:09,851 INFO L274 CegarLoopResult]: For program point L58(lines 58 65) no Hoare annotation was computed. [2020-11-30 02:05:09,851 INFO L274 CegarLoopResult]: For program point L25-1(lines 25 29) no Hoare annotation was computed. [2020-11-30 02:05:09,851 INFO L270 CegarLoopResult]: At program point L25-2(lines 25 29) the Hoare annotation is: false [2020-11-30 02:05:09,852 INFO L274 CegarLoopResult]: For program point L25-3(lines 25 29) no Hoare annotation was computed. [2020-11-30 02:05:09,852 INFO L274 CegarLoopResult]: For program point L50-1(lines 50 54) no Hoare annotation was computed. [2020-11-30 02:05:09,852 INFO L270 CegarLoopResult]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2020-11-30 02:05:09,852 INFO L274 CegarLoopResult]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2020-11-30 02:05:09,852 INFO L274 CegarLoopResult]: For program point L67(lines 67 72) no Hoare annotation was computed. [2020-11-30 02:05:09,852 INFO L274 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-11-30 02:05:09,852 INFO L274 CegarLoopResult]: For program point L92(lines 92 95) no Hoare annotation was computed. [2020-11-30 02:05:09,852 INFO L274 CegarLoopResult]: For program point L59(lines 59 64) no Hoare annotation was computed. [2020-11-30 02:05:09,852 INFO L274 CegarLoopResult]: For program point L117(lines 117 118) no Hoare annotation was computed. [2020-11-30 02:05:09,852 INFO L274 CegarLoopResult]: For program point L84(lines 84 96) no Hoare annotation was computed. [2020-11-30 02:05:09,853 INFO L270 CegarLoopResult]: At program point L142(lines 106 143) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (not (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10f_~hx~0) (_ bv0 32))) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_log10f_~x) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-30 02:05:09,872 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,876 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,876 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,879 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,879 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,890 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,891 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,891 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,891 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,894 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,894 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,895 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,895 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,895 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,897 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,898 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,899 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,899 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,899 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,900 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,901 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,901 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,902 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,902 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,902 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,902 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:09,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:09,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:05:09 BoogieIcfgContainer [2020-11-30 02:05:09,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:05:09,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:05:09,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:05:09,907 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:05:09,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:04:31" (3/4) ... [2020-11-30 02:05:09,912 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:05:09,937 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-11-30 02:05:09,938 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-30 02:05:09,938 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:05:09,939 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:05:09,976 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32)) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-30 02:05:09,979 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32)) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-30 02:05:10,092 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f370a93a-63a9-404b-b73f-7f46ee4a7323/bin/utaipan/witness.graphml [2020-11-30 02:05:10,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:05:10,095 INFO L168 Benchmark]: Toolchain (without parser) took 57950.19 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.4 MB in the beginning and 39.3 MB in the end (delta: -13.8 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:05:10,096 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 48.2 MB. Free memory was 30.5 MB in the beginning and 30.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:05:10,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.62 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 23.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-11-30 02:05:10,097 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.53 ms. Allocated memory is still 48.2 MB. Free memory was 23.2 MB in the beginning and 21.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:05:10,098 INFO L168 Benchmark]: Boogie Preprocessor took 116.80 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 40.7 MB in the end (delta: -19.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:05:10,098 INFO L168 Benchmark]: RCFGBuilder took 18752.42 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 28.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 02:05:10,099 INFO L168 Benchmark]: TraceAbstraction took 38384.05 ms. Allocated memory is still 58.7 MB. Free memory was 28.3 MB in the beginning and 26.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:05:10,099 INFO L168 Benchmark]: Witness Printer took 186.09 ms. Allocated memory is still 58.7 MB. Free memory was 26.3 MB in the beginning and 39.3 MB in the end (delta: -13.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:05:10,102 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 48.2 MB. Free memory was 30.5 MB in the beginning and 30.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 391.62 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 23.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.53 ms. Allocated memory is still 48.2 MB. Free memory was 23.2 MB in the beginning and 21.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 116.80 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 40.7 MB in the end (delta: -19.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 18752.42 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 28.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 38384.05 ms. Allocated memory is still 58.7 MB. Free memory was 28.3 MB in the beginning and 26.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Witness Printer took 186.09 ms. Allocated memory is still 58.7 MB. Free memory was 26.3 MB in the beginning and 39.3 MB in the end (delta: -13.0 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - 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: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2020-11-30 02:05:10,131 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant [2020-11-30 02:05:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,152 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,152 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,152 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32)) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 106]: Loop Invariant [2020-11-30 02:05:10,154 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,155 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,163 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:05:10,163 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:05:10,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32)) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 37.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 25.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 138 SDtfs, 161 SDslu, 280 SDs, 0 SdLazy, 138 SolverSat, 12 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 23.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 7.3s 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 101 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 89 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 12 QuantifiedInterpolants, 6858 SizeOfPredicates, 24 NumberOfNonLiveVariables, 271 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...