./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1011b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1011b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 333c17c406c444dae1f6637e8d10f8cdd725cd45 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1011b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 333c17c406c444dae1f6637e8d10f8cdd725cd45 ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:18:12,346 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:18:12,347 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:18:12,356 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:18:12,356 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:18:12,357 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:18:12,358 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:18:12,359 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:18:12,360 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:18:12,361 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:18:12,362 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:18:12,362 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:18:12,362 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:18:12,363 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:18:12,364 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:18:12,365 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:18:12,365 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:18:12,367 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:18:12,368 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:18:12,369 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:18:12,370 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:18:12,371 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:18:12,373 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:18:12,373 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:18:12,373 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:18:12,374 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:18:12,375 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:18:12,376 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:18:12,376 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:18:12,377 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:18:12,377 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:18:12,378 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:18:12,378 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:18:12,378 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:18:12,379 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:18:12,380 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:18:12,380 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 14:18:12,388 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:18:12,389 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:18:12,389 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:18:12,389 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:18:12,389 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 14:18:12,389 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 14:18:12,390 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 14:18:12,390 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 14:18:12,390 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 14:18:12,390 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 14:18:12,390 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 14:18:12,390 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 14:18:12,390 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 14:18:12,391 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:18:12,391 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:18:12,391 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:18:12,391 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:18:12,391 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:18:12,392 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:18:12,392 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:18:12,392 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:18:12,392 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:18:12,392 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:18:12,392 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:18:12,393 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:18:12,393 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:18:12,393 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:18:12,393 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:18:12,393 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:18:12,393 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:18:12,394 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:18:12,394 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:18:12,394 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:18:12,394 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 14:18:12,394 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:18:12,394 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:18:12,395 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 14:18:12,395 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 333c17c406c444dae1f6637e8d10f8cdd725cd45 [2018-11-23 14:18:12,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:18:12,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:18:12,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:18:12,440 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:18:12,440 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:18:12,441 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1011b_true-unreach-call.c [2018-11-23 14:18:12,500 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/data/8a02f7e93/d878e599c966400e953420c51bd1876c/FLAG20daa1461 [2018-11-23 14:18:12,844 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:18:12,844 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/sv-benchmarks/c/float-newlib/float_req_bl_1011b_true-unreach-call.c [2018-11-23 14:18:12,849 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/data/8a02f7e93/d878e599c966400e953420c51bd1876c/FLAG20daa1461 [2018-11-23 14:18:12,860 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/data/8a02f7e93/d878e599c966400e953420c51bd1876c [2018-11-23 14:18:12,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:18:12,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:18:12,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:18:12,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:18:12,867 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:18:12,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:12" (1/1) ... [2018-11-23 14:18:12,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e21522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:12, skipping insertion in model container [2018-11-23 14:18:12,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:12" (1/1) ... [2018-11-23 14:18:12,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:18:12,895 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:18:13,033 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:18:13,036 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:18:13,055 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:18:13,071 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:18:13,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:13 WrapperNode [2018-11-23 14:18:13,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:18:13,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:18:13,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:18:13,072 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:18:13,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:13" (1/1) ... [2018-11-23 14:18:13,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:13" (1/1) ... [2018-11-23 14:18:13,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:18:13,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:18:13,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:18:13,090 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:18:13,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:13" (1/1) ... [2018-11-23 14:18:13,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:13" (1/1) ... [2018-11-23 14:18:13,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:13" (1/1) ... [2018-11-23 14:18:13,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:13" (1/1) ... [2018-11-23 14:18:13,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:13" (1/1) ... [2018-11-23 14:18:13,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:13" (1/1) ... [2018-11-23 14:18:13,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:13" (1/1) ... [2018-11-23 14:18:13,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:18:13,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:18:13,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:18:13,157 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:18:13,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/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 [2018-11-23 14:18:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:18:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:18:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-23 14:18:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 14:18:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:18:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:18:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-23 14:18:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 14:18:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-23 14:18:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-23 14:18:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:18:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:18:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 14:18:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-23 14:18:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-23 14:18:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 14:18:13,372 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:18:13,372 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 14:18:13,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:13 BoogieIcfgContainer [2018-11-23 14:18:13,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:18:13,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:18:13,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:18:13,376 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:18:13,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:18:12" (1/3) ... [2018-11-23 14:18:13,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce28f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:13, skipping insertion in model container [2018-11-23 14:18:13,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:13" (2/3) ... [2018-11-23 14:18:13,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce28f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:13, skipping insertion in model container [2018-11-23 14:18:13,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:13" (3/3) ... [2018-11-23 14:18:13,379 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011b_true-unreach-call.c [2018-11-23 14:18:13,389 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:18:13,396 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 14:18:13,409 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 14:18:13,434 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:18:13,435 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:18:13,435 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:18:13,435 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:18:13,435 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:18:13,435 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:18:13,435 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:18:13,435 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:18:13,451 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-23 14:18:13,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 14:18:13,455 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:18:13,456 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:18:13,458 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:18:13,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:18:13,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1505277509, now seen corresponding path program 1 times [2018-11-23 14:18:13,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:18:13,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:13,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:18:13,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:13,498 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:18:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:18:13,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:18:13,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:18:13,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:18:13,551 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:18:13,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 14:18:13,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 14:18:13,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 14:18:13,566 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-11-23 14:18:13,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:18:13,582 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2018-11-23 14:18:13,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 14:18:13,583 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-23 14:18:13,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:18:13,590 INFO L225 Difference]: With dead ends: 56 [2018-11-23 14:18:13,591 INFO L226 Difference]: Without dead ends: 28 [2018-11-23 14:18:13,594 INFO L631 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 [2018-11-23 14:18:13,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-23 14:18:13,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-23 14:18:13,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-23 14:18:13,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-23 14:18:13,622 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 17 [2018-11-23 14:18:13,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:18:13,623 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-23 14:18:13,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 14:18:13,623 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-23 14:18:13,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 14:18:13,624 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:18:13,624 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:18:13,624 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:18:13,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:18:13,625 INFO L82 PathProgramCache]: Analyzing trace with hash -820328856, now seen corresponding path program 1 times [2018-11-23 14:18:13,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:18:13,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:13,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:18:13,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:13,626 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:18:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:18:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:18:13,687 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=15, |#NULL.offset|=6, |old(#NULL.base)|=15, |old(#NULL.offset)|=6] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=15, |old(#NULL.offset)|=6] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=15, |old(#NULL.offset)|=6] [?] RET #65#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret9 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret6 := fabs_float(~x~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0] [?] ~x := #in~x;havoc ~ix~0; VAL [fabs_float_~x=14.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0] [?] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4);call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4);call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4);~ix~0 := #t~mem0;call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4);havoc #t~union1;havoc #t~mem0;call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset);havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [fabs_float_~ix~0=12, fabs_float_~x=14.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0] [?] goto; VAL [fabs_float_~ix~0=12, fabs_float_~x=14.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0] [?] call ~#sf_u~0.base, ~#sf_u~0.offset := #Ultimate.alloc(4);call write~int(~bitwiseAnd(~ix~0, 2147483647), ~#sf_u~0.base, ~#sf_u~0.offset, 4);call #t~mem2 := read~real(~#sf_u~0.base, ~#sf_u~0.offset, 4);~x := #t~mem2;call write~int(#t~union3, ~#sf_u~0.base, ~#sf_u~0.offset, 4);havoc #t~mem2;havoc #t~union3;call ULTIMATE.dealloc(~#sf_u~0.base, ~#sf_u~0.offset);havoc ~#sf_u~0.base, ~#sf_u~0.offset; VAL [fabs_float_~ix~0=12, fabs_float_~x=5.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0] [?] goto; VAL [fabs_float_~ix~0=12, fabs_float_~x=5.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0] [?] #res := ~x; VAL [fabs_float_~ix~0=12, fabs_float_~x=5.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0, |fabs_float_#res|=5.0] [?] assume true; VAL [fabs_float_~ix~0=12, fabs_float_~x=5.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0, |fabs_float_#res|=5.0] [?] RET #69#return; VAL [main_~x~0=14.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret6|=5.0] [?] ~res~0 := #t~ret6;havoc #t~ret6;#t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [main_~res~0=5.0, main_~x~0=14.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~short8|=false] [?] assume !#t~short8; VAL [main_~res~0=5.0, main_~x~0=14.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~short8|=false] [?] assume !#t~short8;havoc #t~short8;havoc #t~ret7; VAL [main_~res~0=5.0, main_~x~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] assume !false; VAL [main_~res~0=5.0, main_~x~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=15, #NULL.offset=6, old(#NULL.base)=15, old(#NULL.offset)=6] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=15, old(#NULL.offset)=6] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=15, old(#NULL.offset)=6] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L45] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL.base=0, #NULL.offset=0] [L46] CALL call #t~ret6 := fabs_float(~x~0); VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0] [L12-L25] ~x := #in~x; [L13] havoc ~ix~0; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, ~x=14.0] [L15] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L16] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] ~ix~0 := #t~mem0; [L17] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] havoc #t~union1; [L17] havoc #t~mem0; [L15] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L15] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=12, ~x=14.0] [L20] call ~#sf_u~0.base, ~#sf_u~0.offset := #Ultimate.alloc(4); [L21] call write~int(~bitwiseAnd(~ix~0, 2147483647), ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L22] call #t~mem2 := read~real(~#sf_u~0.base, ~#sf_u~0.offset, 4); [L22] ~x := #t~mem2; [L22] call write~int(#t~union3, ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L22] havoc #t~mem2; [L22] havoc #t~union3; [L20] call ULTIMATE.dealloc(~#sf_u~0.base, ~#sf_u~0.offset); [L20] havoc ~#sf_u~0.base, ~#sf_u~0.offset; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=12, ~x=5.0] [L24] #res := ~x; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L12-L25] ensures true; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L46] RET call #t~ret6 := fabs_float(~x~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret6=5.0, ~x~0=14.0] [L46] ~res~0 := #t~ret6; [L46] havoc #t~ret6; [L49] #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL.base=0, #NULL.offset=0, #t~short8=false, ~res~0=5.0, ~x~0=14.0] [L49] assume !#t~short8; VAL [#NULL.base=0, #NULL.offset=0, #t~short8=false, ~res~0=5.0, ~x~0=14.0] [L49-L52] assume !#t~short8; [L49] havoc #t~short8; [L49] havoc #t~ret7; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=5.0, ~x~0=14.0] [L50] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=5.0, ~x~0=14.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=15, #NULL.offset=6, old(#NULL.base)=15, old(#NULL.offset)=6] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=15, old(#NULL.offset)=6] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=15, old(#NULL.offset)=6] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L45] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL.base=0, #NULL.offset=0] [L46] CALL call #t~ret6 := fabs_float(~x~0); VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0] [L12-L25] ~x := #in~x; [L13] havoc ~ix~0; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, ~x=14.0] [L15] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L16] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] ~ix~0 := #t~mem0; [L17] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] havoc #t~union1; [L17] havoc #t~mem0; [L15] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L15] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=12, ~x=14.0] [L20] call ~#sf_u~0.base, ~#sf_u~0.offset := #Ultimate.alloc(4); [L21] call write~int(~bitwiseAnd(~ix~0, 2147483647), ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L22] call #t~mem2 := read~real(~#sf_u~0.base, ~#sf_u~0.offset, 4); [L22] ~x := #t~mem2; [L22] call write~int(#t~union3, ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L22] havoc #t~mem2; [L22] havoc #t~union3; [L20] call ULTIMATE.dealloc(~#sf_u~0.base, ~#sf_u~0.offset); [L20] havoc ~#sf_u~0.base, ~#sf_u~0.offset; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=12, ~x=5.0] [L24] #res := ~x; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L12-L25] ensures true; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L46] RET call #t~ret6 := fabs_float(~x~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret6=5.0, ~x~0=14.0] [L46] ~res~0 := #t~ret6; [L46] havoc #t~ret6; [L49] #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL.base=0, #NULL.offset=0, #t~short8=false, ~res~0=5.0, ~x~0=14.0] [L49] assume !#t~short8; VAL [#NULL.base=0, #NULL.offset=0, #t~short8=false, ~res~0=5.0, ~x~0=14.0] [L49-L52] assume !#t~short8; [L49] havoc #t~short8; [L49] havoc #t~ret7; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=5.0, ~x~0=14.0] [L50] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=5.0, ~x~0=14.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=15, #NULL!offset=6, old(#NULL!base)=15, old(#NULL!offset)=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=15, old(#NULL!offset)=6] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L45] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL!base=0, #NULL!offset=0] [L46] CALL call #t~ret6 := fabs_float(~x~0); VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0] [L12-L25] ~x := #in~x; [L13] havoc ~ix~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~x=14.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~ix~0 := #t~mem0; [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~union1; [L17] havoc #t~mem0; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=14.0] [L20] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L21] FCALL call write~int(~bitwiseAnd(~ix~0, 2147483647), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L22] FCALL call #t~mem2 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L22] ~x := #t~mem2; [L22] FCALL call write~int(#t~union3, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L22] havoc #t~mem2; [L22] havoc #t~union3; [L20] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L20] havoc ~#sf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=5.0] [L24] #res := ~x; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L46] RET call #t~ret6 := fabs_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=5.0, ~x~0=14.0] [L46] ~res~0 := #t~ret6; [L46] havoc #t~ret6; [L49] #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=5.0, ~x~0=14.0] [L49] COND FALSE !(#t~short8) VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=5.0, ~x~0=14.0] [L49] COND TRUE !#t~short8 [L49] havoc #t~short8; [L49] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L50] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=15, #NULL!offset=6, old(#NULL!base)=15, old(#NULL!offset)=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=15, old(#NULL!offset)=6] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L45] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL!base=0, #NULL!offset=0] [L46] CALL call #t~ret6 := fabs_float(~x~0); VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0] [L12-L25] ~x := #in~x; [L13] havoc ~ix~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~x=14.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~ix~0 := #t~mem0; [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~union1; [L17] havoc #t~mem0; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=14.0] [L20] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L21] FCALL call write~int(~bitwiseAnd(~ix~0, 2147483647), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L22] FCALL call #t~mem2 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L22] ~x := #t~mem2; [L22] FCALL call write~int(#t~union3, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L22] havoc #t~mem2; [L22] havoc #t~union3; [L20] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L20] havoc ~#sf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=5.0] [L24] #res := ~x; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L46] RET call #t~ret6 := fabs_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=5.0, ~x~0=14.0] [L46] ~res~0 := #t~ret6; [L46] havoc #t~ret6; [L49] #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=5.0, ~x~0=14.0] [L49] COND FALSE !(#t~short8) VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=5.0, ~x~0=14.0] [L49] COND TRUE !#t~short8 [L49] havoc #t~short8; [L49] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L50] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=15, #NULL!offset=6, old(#NULL!base)=15, old(#NULL!offset)=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=15, old(#NULL!offset)=6] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L45] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL!base=0, #NULL!offset=0] [L46] CALL call #t~ret6 := fabs_float(~x~0); VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0] [L12-L25] ~x := #in~x; [L13] havoc ~ix~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~x=14.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~ix~0 := #t~mem0; [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~union1; [L17] havoc #t~mem0; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=14.0] [L20] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L21] FCALL call write~int(~bitwiseAnd(~ix~0, 2147483647), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L22] FCALL call #t~mem2 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L22] ~x := #t~mem2; [L22] FCALL call write~int(#t~union3, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L22] havoc #t~mem2; [L22] havoc #t~union3; [L20] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L20] havoc ~#sf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=5.0] [L24] #res := ~x; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L46] RET call #t~ret6 := fabs_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=5.0, ~x~0=14.0] [L46] ~res~0 := #t~ret6; [L46] havoc #t~ret6; [L49] #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=5.0, ~x~0=14.0] [L49] COND FALSE !(#t~short8) VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=5.0, ~x~0=14.0] [L49] COND TRUE !#t~short8 [L49] havoc #t~short8; [L49] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L50] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=15, #NULL!offset=6, old(#NULL!base)=15, old(#NULL!offset)=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=15, old(#NULL!offset)=6] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L45] ~x~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL!base=0, #NULL!offset=0] [L46] CALL call #t~ret6 := fabs_float(~x~0); VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0] [L12-L25] ~x := #in~x; [L13] havoc ~ix~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~x=14.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~ix~0 := #t~mem0; [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~union1; [L17] havoc #t~mem0; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=14.0] [L20] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L21] FCALL call write~int(~bitwiseAnd(~ix~0, 2147483647), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L22] FCALL call #t~mem2 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L22] ~x := #t~mem2; [L22] FCALL call write~int(#t~union3, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L22] havoc #t~mem2; [L22] havoc #t~union3; [L20] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L20] havoc ~#sf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=5.0] [L24] #res := ~x; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L46] RET call #t~ret6 := fabs_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret6=5.0, ~x~0=14.0] [L46] ~res~0 := #t~ret6; [L46] havoc #t~ret6; [L49] #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=5.0, ~x~0=14.0] [L49] COND FALSE !(#t~short8) VAL [#NULL!base=0, #NULL!offset=0, #t~short8=false, ~res~0=5.0, ~x~0=14.0] [L49] COND TRUE !#t~short8 [L49] havoc #t~short8; [L49] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L50] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L45] float x = -0.0f; [L46] CALL, EXPR fabs_float(x) VAL [\old(x)=14] [L13] __uint32_t ix; VAL [\old(x)=14, x=14] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type sf_u; [L21] sf_u.word = (ix & 0x7fffffff) [L22] EXPR sf_u.value [L22] (x) = sf_u.value [L24] return x; VAL [\old(x)=14, \result=5, ix=12, x=5] [L46] RET, EXPR fabs_float(x) VAL [fabs_float(x)=5, x=14] [L46] float res = fabs_float(x); [L49] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=5, res == 0.0f && __signbit_float(res) == 0=0, x=14] [L49] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L50] __VERIFIER_error() VAL [res=5, x=14] ----- [2018-11-23 14:18:13,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:18:13 BoogieIcfgContainer [2018-11-23 14:18:13,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:18:13,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:18:13,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:18:13,721 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:18:13,721 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:13" (3/4) ... [2018-11-23 14:18:13,724 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 14:18:13,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:18:13,725 INFO L168 Benchmark]: Toolchain (without parser) took 862.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:13,726 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:18:13,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.87 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:13,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.09 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:18:13,728 INFO L168 Benchmark]: Boogie Preprocessor took 66.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -197.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:13,728 INFO L168 Benchmark]: RCFGBuilder took 216.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:13,729 INFO L168 Benchmark]: TraceAbstraction took 347.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:13,729 INFO L168 Benchmark]: Witness Printer took 3.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:18:13,732 INFO L336 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 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 207.87 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.09 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -197.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 216.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 347.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 50]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of someUnaryFLOAToperation at line 45, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L45] float x = -0.0f; [L46] CALL, EXPR fabs_float(x) VAL [\old(x)=14] [L13] __uint32_t ix; VAL [\old(x)=14, x=14] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type sf_u; [L21] sf_u.word = (ix & 0x7fffffff) [L22] EXPR sf_u.value [L22] (x) = sf_u.value [L24] return x; VAL [\old(x)=14, \result=5, ix=12, x=5] [L46] RET, EXPR fabs_float(x) VAL [fabs_float(x)=5, x=14] [L46] float res = fabs_float(x); [L49] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=5, res == 0.0f && __signbit_float(res) == 0=0, x=14] [L49] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L50] __VERIFIER_error() VAL [res=5, x=14] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 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=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 14:18:15,391 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:18:15,393 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:18:15,404 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:18:15,404 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:18:15,405 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:18:15,406 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:18:15,408 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:18:15,409 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:18:15,409 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:18:15,410 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:18:15,411 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:18:15,411 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:18:15,412 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:18:15,413 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:18:15,414 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:18:15,415 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:18:15,417 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:18:15,418 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:18:15,419 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:18:15,420 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:18:15,422 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:18:15,424 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:18:15,424 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:18:15,424 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:18:15,425 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:18:15,426 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:18:15,427 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:18:15,427 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:18:15,428 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:18:15,429 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:18:15,430 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:18:15,430 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:18:15,430 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:18:15,431 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:18:15,432 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:18:15,432 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 14:18:15,445 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:18:15,445 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:18:15,446 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:18:15,446 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:18:15,446 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 14:18:15,446 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 14:18:15,446 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 14:18:15,447 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 14:18:15,447 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 14:18:15,447 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 14:18:15,448 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:18:15,448 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:18:15,448 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:18:15,448 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:18:15,448 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:18:15,448 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:18:15,450 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:18:15,450 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 14:18:15,450 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 14:18:15,451 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:18:15,451 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:18:15,451 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:18:15,451 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:18:15,451 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:18:15,452 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:18:15,452 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:18:15,452 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:18:15,452 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:18:15,452 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:18:15,452 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:18:15,453 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:18:15,453 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 14:18:15,453 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:18:15,453 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 14:18:15,453 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 14:18:15,453 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 333c17c406c444dae1f6637e8d10f8cdd725cd45 [2018-11-23 14:18:15,489 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:18:15,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:18:15,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:18:15,504 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:18:15,504 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:18:15,505 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1011b_true-unreach-call.c [2018-11-23 14:18:15,547 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/data/1fd4ed048/3ccb210b436b451c8b4b872bb086a09b/FLAG10d0158b9 [2018-11-23 14:18:15,892 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:18:15,893 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/sv-benchmarks/c/float-newlib/float_req_bl_1011b_true-unreach-call.c [2018-11-23 14:18:15,898 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/data/1fd4ed048/3ccb210b436b451c8b4b872bb086a09b/FLAG10d0158b9 [2018-11-23 14:18:16,315 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/data/1fd4ed048/3ccb210b436b451c8b4b872bb086a09b [2018-11-23 14:18:16,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:18:16,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:18:16,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:18:16,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:18:16,322 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:18:16,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:16" (1/1) ... [2018-11-23 14:18:16,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268a0140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16, skipping insertion in model container [2018-11-23 14:18:16,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:16" (1/1) ... [2018-11-23 14:18:16,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:18:16,348 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:18:16,488 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:18:16,492 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:18:16,510 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:18:16,529 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:18:16,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16 WrapperNode [2018-11-23 14:18:16,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:18:16,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:18:16,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:18:16,530 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:18:16,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16" (1/1) ... [2018-11-23 14:18:16,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16" (1/1) ... [2018-11-23 14:18:16,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:18:16,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:18:16,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:18:16,550 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:18:16,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16" (1/1) ... [2018-11-23 14:18:16,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16" (1/1) ... [2018-11-23 14:18:16,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16" (1/1) ... [2018-11-23 14:18:16,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16" (1/1) ... [2018-11-23 14:18:16,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16" (1/1) ... [2018-11-23 14:18:16,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16" (1/1) ... [2018-11-23 14:18:16,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16" (1/1) ... [2018-11-23 14:18:16,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:18:16,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:18:16,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:18:16,580 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:18:16,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/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 [2018-11-23 14:18:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:18:16,677 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:18:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-23 14:18:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:18:16,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:18:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 14:18:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-23 14:18:16,677 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-23 14:18:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 14:18:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:18:16,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:18:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-23 14:18:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-23 14:18:16,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-23 14:18:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 14:18:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 14:18:16,880 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:18:16,880 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 14:18:16,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:16 BoogieIcfgContainer [2018-11-23 14:18:16,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:18:16,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:18:16,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:18:16,883 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:18:16,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:18:16" (1/3) ... [2018-11-23 14:18:16,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d428fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:16, skipping insertion in model container [2018-11-23 14:18:16,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:16" (2/3) ... [2018-11-23 14:18:16,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d428fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:16, skipping insertion in model container [2018-11-23 14:18:16,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:16" (3/3) ... [2018-11-23 14:18:16,886 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011b_true-unreach-call.c [2018-11-23 14:18:16,894 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:18:16,900 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 14:18:16,916 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 14:18:16,940 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:18:16,941 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:18:16,941 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:18:16,941 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:18:16,941 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:18:16,941 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:18:16,942 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:18:16,942 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:18:16,942 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:18:16,954 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-23 14:18:16,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 14:18:16,958 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:18:16,959 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:18:16,960 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:18:16,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:18:16,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1505277509, now seen corresponding path program 1 times [2018-11-23 14:18:16,968 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 14:18:16,968 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/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 [2018-11-23 14:18:16,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:18:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:18:17,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:18:17,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:18:17,027 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 14:18:17,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:18:17,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:18:17,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 14:18:17,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 14:18:17,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 14:18:17,051 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-11-23 14:18:17,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:18:17,067 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2018-11-23 14:18:17,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 14:18:17,069 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-23 14:18:17,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:18:17,075 INFO L225 Difference]: With dead ends: 56 [2018-11-23 14:18:17,075 INFO L226 Difference]: Without dead ends: 28 [2018-11-23 14:18:17,078 INFO L631 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 [2018-11-23 14:18:17,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-23 14:18:17,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-23 14:18:17,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-23 14:18:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-23 14:18:17,108 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 17 [2018-11-23 14:18:17,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:18:17,108 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-23 14:18:17,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 14:18:17,108 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-23 14:18:17,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 14:18:17,109 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:18:17,109 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:18:17,109 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:18:17,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:18:17,110 INFO L82 PathProgramCache]: Analyzing trace with hash -820328856, now seen corresponding path program 1 times [2018-11-23 14:18:17,111 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 14:18:17,111 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/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 [2018-11-23 14:18:17,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:18:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:18:17,159 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:18:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:18:17,362 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 14:18:17,376 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:18:17,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 14:18:17,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 14:18:17,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 14:18:17,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-23 14:18:17,378 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 9 states. [2018-11-23 14:18:17,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:18:17,697 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-11-23 14:18:17,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 14:18:17,698 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-11-23 14:18:17,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:18:17,699 INFO L225 Difference]: With dead ends: 31 [2018-11-23 14:18:17,699 INFO L226 Difference]: Without dead ends: 28 [2018-11-23 14:18:17,700 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-11-23 14:18:17,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-23 14:18:17,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-23 14:18:17,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-23 14:18:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-11-23 14:18:17,705 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 19 [2018-11-23 14:18:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:18:17,705 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-11-23 14:18:17,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 14:18:17,705 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-11-23 14:18:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 14:18:17,706 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:18:17,706 INFO L402 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, 1, 1, 1, 1, 1] [2018-11-23 14:18:17,707 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:18:17,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:18:17,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1040391693, now seen corresponding path program 1 times [2018-11-23 14:18:17,708 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 14:18:17,708 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/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 [2018-11-23 14:18:17,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:18:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:18:17,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:18:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:18:18,136 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 14:18:18,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:18:18,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-23 14:18:18,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 14:18:18,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 14:18:18,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-11-23 14:18:18,145 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 14 states. [2018-11-23 14:18:18,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:18:18,721 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-11-23 14:18:18,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 14:18:18,722 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 27 [2018-11-23 14:18:18,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:18:18,722 INFO L225 Difference]: With dead ends: 28 [2018-11-23 14:18:18,722 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 14:18:18,723 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2018-11-23 14:18:18,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 14:18:18,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 14:18:18,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 14:18:18,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:18:18,724 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-23 14:18:18,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:18:18,724 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:18:18,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 14:18:18,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:18:18,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:18:18,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 14:18:18,787 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 14:18:18,788 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 14:18:18,788 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:18:18,788 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 12 25) no Hoare annotation was computed. [2018-11-23 14:18:18,788 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 12 25) no Hoare annotation was computed. [2018-11-23 14:18:18,788 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 12 25) the Hoare annotation is: true [2018-11-23 14:18:18,789 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-11-23 14:18:18,789 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 12 25) no Hoare annotation was computed. [2018-11-23 14:18:18,789 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 23) no Hoare annotation was computed. [2018-11-23 14:18:18,789 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-23 14:18:18,789 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= fabs_float_~x |fabs_float_#in~x|) [2018-11-23 14:18:18,789 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:18:18,789 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 14:18:18,790 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 14:18:18,790 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 14:18:18,790 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 39 55) the Hoare annotation is: true [2018-11-23 14:18:18,790 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 39 55) no Hoare annotation was computed. [2018-11-23 14:18:18,790 INFO L448 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-11-23 14:18:18,790 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-23 14:18:18,791 INFO L444 ceAbstractionStarter]: At program point L49-1(line 49) the Hoare annotation is: (and |main_#t~short8| (= main_~x~0 (fp.neg (_ +zero 8 24))) (exists ((fabs_float_~ix~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) fabs_float_~ix~0) ((_ extract 30 23) fabs_float_~ix~0) ((_ extract 22 0) fabs_float_~ix~0)) (fp.neg (_ +zero 8 24))) (= main_~res~0 (let ((.cse0 (bvand (_ bv2147483647 32) fabs_float_~ix~0))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))))) [2018-11-23 14:18:18,791 INFO L448 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-11-23 14:18:18,791 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 50) no Hoare annotation was computed. [2018-11-23 14:18:18,791 INFO L444 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: (= main_~x~0 (fp.neg (_ +zero 8 24))) [2018-11-23 14:18:18,791 INFO L448 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2018-11-23 14:18:18,791 INFO L448 ceAbstractionStarter]: For program point L49-4(lines 49 52) no Hoare annotation was computed. [2018-11-23 14:18:18,791 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 39 55) no Hoare annotation was computed. [2018-11-23 14:18:18,792 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-11-23 14:18:18,792 INFO L444 ceAbstractionStarter]: At program point L30-2(lines 30 34) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-23 14:18:18,792 INFO L448 ceAbstractionStarter]: For program point L30-3(lines 30 34) no Hoare annotation was computed. [2018-11-23 14:18:18,792 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 27 37) no Hoare annotation was computed. [2018-11-23 14:18:18,792 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 27 37) the Hoare annotation is: true [2018-11-23 14:18:18,792 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 27 37) no Hoare annotation was computed. [2018-11-23 14:18:18,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:18:18 BoogieIcfgContainer [2018-11-23 14:18:18,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:18:18,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:18:18,802 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:18:18,802 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:18:18,802 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:16" (3/4) ... [2018-11-23 14:18:18,805 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:18:18,811 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 14:18:18,811 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-23 14:18:18,812 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 14:18:18,812 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-23 14:18:18,816 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-23 14:18:18,816 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 14:18:18,816 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 14:18:18,837 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-23 14:18:18,838 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-23 14:18:18,852 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e72b0658-a5b4-4f8e-9791-c63c4d5befc5/bin-2019/utaipan/witness.graphml [2018-11-23 14:18:18,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:18:18,853 INFO L168 Benchmark]: Toolchain (without parser) took 2535.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 951.9 MB in the beginning and 968.3 MB in the end (delta: -16.4 MB). Peak memory consumption was 137.2 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:18,855 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:18:18,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.87 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:18,856 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.52 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:18:18,856 INFO L168 Benchmark]: Boogie Preprocessor took 29.97 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:18:18,856 INFO L168 Benchmark]: RCFGBuilder took 301.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:18,857 INFO L168 Benchmark]: TraceAbstraction took 1920.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.3 MB in the end (delta: 155.3 MB). Peak memory consumption was 155.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:18,857 INFO L168 Benchmark]: Witness Printer took 51.06 ms. Allocated memory is still 1.2 GB. Free memory is still 968.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:18:18,859 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 209.87 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.52 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.97 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 301.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1920.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.3 MB in the end (delta: 155.3 MB). Peak memory consumption was 155.3 MB. Max. memory is 11.5 GB. * Witness Printer took 51.06 ms. Allocated memory is still 1.2 GB. Free memory is still 968.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: 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: 30]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 277 SDs, 0 SdLazy, 158 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 49 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 14 QuantifiedInterpolants, 11832 SizeOfPredicates, 13 NumberOfNonLiveVariables, 166 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...