./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/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 4dddb731074a9a249891d6adbc7c778d25efe28d ........................................................................................................................................................................................................................................................................................................................................................................................... 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_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/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 4dddb731074a9a249891d6adbc7c778d25efe28d .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:03:55,142 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:03:55,143 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:03:55,154 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:03:55,155 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:03:55,156 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:03:55,157 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:03:55,158 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:03:55,159 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:03:55,159 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:03:55,160 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:03:55,160 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:03:55,160 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:03:55,161 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:03:55,161 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:03:55,161 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:03:55,163 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:03:55,164 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:03:55,166 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:03:55,167 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:03:55,168 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:03:55,169 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:03:55,171 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:03:55,171 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:03:55,172 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:03:55,172 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:03:55,173 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:03:55,174 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:03:55,175 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:03:55,175 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:03:55,176 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:03:55,176 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:03:55,176 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:03:55,177 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:03:55,177 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:03:55,179 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:03:55,179 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 00:03:55,190 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:03:55,190 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:03:55,191 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:03:55,191 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:03:55,191 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:03:55,191 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:03:55,192 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:03:55,192 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:03:55,192 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:03:55,192 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:03:55,192 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:03:55,193 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:03:55,193 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:03:55,193 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:03:55,193 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:03:55,193 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:03:55,195 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:03:55,195 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:03:55,195 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:03:55,196 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:03:55,196 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:03:55,196 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:03:55,196 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:03:55,197 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:03:55,197 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:03:55,197 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:03:55,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:03:55,198 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:03:55,198 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:03:55,198 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:03:55,198 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:03:55,198 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:03:55,198 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:03:55,198 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:03:55,198 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_a543204a-29e2-445a-b32a-929ab88782c1/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 -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-10-27 00:03:55,226 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:03:55,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:03:55,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:03:55,239 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:03:55,239 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:03:55,240 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-10-27 00:03:55,285 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/data/2d0d6e11d/1e0f9a0383684ebc8fddc22c214f3dd2/FLAG73c416bfe [2018-10-27 00:03:55,669 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:03:55,670 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-10-27 00:03:55,678 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/data/2d0d6e11d/1e0f9a0383684ebc8fddc22c214f3dd2/FLAG73c416bfe [2018-10-27 00:03:55,689 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/data/2d0d6e11d/1e0f9a0383684ebc8fddc22c214f3dd2 [2018-10-27 00:03:55,692 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:03:55,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:03:55,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:03:55,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:03:55,699 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:03:55,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:03:55" (1/1) ... [2018-10-27 00:03:55,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495aae42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55, skipping insertion in model container [2018-10-27 00:03:55,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:03:55" (1/1) ... [2018-10-27 00:03:55,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:03:55,737 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:03:55,917 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:03:55,921 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:03:55,967 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:03:55,986 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:03:55,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55 WrapperNode [2018-10-27 00:03:55,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:03:55,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:03:55,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:03:55,991 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:03:56,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55" (1/1) ... [2018-10-27 00:03:56,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55" (1/1) ... [2018-10-27 00:03:56,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:03:56,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:03:56,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:03:56,079 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:03:56,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55" (1/1) ... [2018-10-27 00:03:56,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55" (1/1) ... [2018-10-27 00:03:56,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55" (1/1) ... [2018-10-27 00:03:56,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55" (1/1) ... [2018-10-27 00:03:56,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55" (1/1) ... [2018-10-27 00:03:56,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55" (1/1) ... [2018-10-27 00:03:56,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55" (1/1) ... [2018-10-27 00:03:56,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:03:56,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:03:56,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:03:56,203 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:03:56,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/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 [2018-10-27 00:03:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:03:56,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:03:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-10-27 00:03:56,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-10-27 00:03:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-27 00:03:56,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-27 00:03:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:03:56,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:03:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-10-27 00:03:56,291 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-10-27 00:03:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:03:56,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:03:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-10-27 00:03:56,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-10-27 00:03:57,264 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:03:57,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:03:57 BoogieIcfgContainer [2018-10-27 00:03:57,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:03:57,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:03:57,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:03:57,268 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:03:57,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:03:55" (1/3) ... [2018-10-27 00:03:57,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe0e545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:03:57, skipping insertion in model container [2018-10-27 00:03:57,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:03:55" (2/3) ... [2018-10-27 00:03:57,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe0e545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:03:57, skipping insertion in model container [2018-10-27 00:03:57,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:03:57" (3/3) ... [2018-10-27 00:03:57,271 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-10-27 00:03:57,279 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:03:57,285 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:03:57,299 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:03:57,325 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:03:57,325 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:03:57,326 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:03:57,326 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:03:57,326 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:03:57,326 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:03:57,326 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:03:57,326 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:03:57,340 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2018-10-27 00:03:57,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 00:03:57,345 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:03:57,346 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:03:57,348 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:03:57,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:03:57,353 INFO L82 PathProgramCache]: Analyzing trace with hash -909407616, now seen corresponding path program 1 times [2018-10-27 00:03:57,355 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:03:57,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:03:57,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:03:57,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:03:57,398 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:03:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:03:57,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:03:57,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:03:57,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:03:57,496 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:03:57,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:03:57,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:03:57,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:03:57,516 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2018-10-27 00:03:57,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:03:57,541 INFO L93 Difference]: Finished difference Result 148 states and 218 transitions. [2018-10-27 00:03:57,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:03:57,542 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-10-27 00:03:57,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:03:57,550 INFO L225 Difference]: With dead ends: 148 [2018-10-27 00:03:57,550 INFO L226 Difference]: Without dead ends: 74 [2018-10-27 00:03:57,554 INFO L605 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 [2018-10-27 00:03:57,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-10-27 00:03:57,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-10-27 00:03:57,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-10-27 00:03:57,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2018-10-27 00:03:57,595 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 21 [2018-10-27 00:03:57,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:03:57,596 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2018-10-27 00:03:57,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:03:57,596 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2018-10-27 00:03:57,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 00:03:57,597 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:03:57,597 INFO L375 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] [2018-10-27 00:03:57,597 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:03:57,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:03:57,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1895543027, now seen corresponding path program 1 times [2018-10-27 00:03:57,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:03:57,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:03:57,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:03:57,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:03:57,601 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:03:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:03:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:03:57,724 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 00:03:57,742 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:03:57,743 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:03:57,743 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:03:57,743 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:03:57,744 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:03:57,744 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:03:57,744 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:03:57,744 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:03:57,745 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:03:57,745 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:03:57,745 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:03:57,746 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:03:57,746 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:03:57,746 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:03:57,746 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:03:57,747 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:03:57,747 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:03:57,747 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:03:57,747 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:03:57,748 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:03:57,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:03:57 BoogieIcfgContainer [2018-10-27 00:03:57,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:03:57,771 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:03:57,771 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:03:57,772 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:03:57,772 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:03:57" (3/4) ... [2018-10-27 00:03:57,776 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 00:03:57,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:03:57,777 INFO L168 Benchmark]: Toolchain (without parser) took 2084.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 958.5 MB in the beginning and 1.1 GB in the end (delta: -101.0 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. [2018-10-27 00:03:57,779 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:03:57,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.56 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 942.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:03:57,780 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.41 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:03:57,780 INFO L168 Benchmark]: Boogie Preprocessor took 123.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:03:57,781 INFO L168 Benchmark]: RCFGBuilder took 1061.90 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: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:03:57,782 INFO L168 Benchmark]: TraceAbstraction took 506.12 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-10-27 00:03:57,782 INFO L168 Benchmark]: Witness Printer took 4.79 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. [2018-10-27 00:03:57,785 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.56 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 942.4 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 88.41 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 123.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1061.90 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: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 506.12 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.79 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 233]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of bitwiseAnd at line 161, overapproximation of someUnaryFLOAToperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 164. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L60] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L143-L151] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=27, \old(huge_floor)=10, \old(one_asin)=14, \old(one_sqrt)=11, \old(pio2_hi_asin)=13, \old(pio2_lo_asin)=22, \old(pio4_hi_asin)=15, \old(pS0_asin)=21, \old(pS1_asin)=16, \old(pS2_asin)=8, \old(pS3_asin)=20, \old(pS4_asin)=25, \old(pS5_asin)=18, \old(qS1_asin)=28, \old(qS2_asin)=26, \old(qS3_asin)=6, \old(qS4_asin)=23, \old(tiny_sqrt)=24, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L228] float x = -1.0f / 0.0f; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L229] CALL, EXPR __ieee754_asinf(x) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L154] float t, w, p, q, c, r, s; [L155] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L157] CALL ieee_float_shape_type gf_u; [L157] RET ieee_float_shape_type gf_u; [L158] CALL gf_u.value = (x) [L158] RET gf_u.value = (x) [L159] CALL, EXPR gf_u.word [L159] RET, EXPR gf_u.word [L159] (hx) = gf_u.word [L159] RET (hx) = gf_u.word [L160] COND FALSE !(0) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L161] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L162] COND TRUE ix == 0x3f800000 [L164] RET return x * pio2_hi_asin + x * pio2_lo_asin; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L229] EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=9, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=17] [L229] float res = __ieee754_asinf(x); [L232] CALL, EXPR isnan_float(res) VAL [\old(x)=9, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L58] RET return x != x; VAL [\old(x)=9, \result=0, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L232] EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=9, tiny_sqrt=1/1000000000000000000000000000000, x=17] [L232] COND TRUE !isnan_float(res) [L233] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=9, tiny_sqrt=1/1000000000000000000000000000000, x=17] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 78 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 95 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=78occurred 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, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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 0.1.23-1dbac8b [2018-10-27 00:03:59,743 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:03:59,744 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:03:59,755 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:03:59,755 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:03:59,756 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:03:59,757 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:03:59,761 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:03:59,762 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:03:59,763 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:03:59,763 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:03:59,765 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:03:59,766 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:03:59,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:03:59,768 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:03:59,768 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:03:59,769 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:03:59,772 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:03:59,774 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:03:59,775 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:03:59,776 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:03:59,777 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:03:59,788 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:03:59,788 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:03:59,788 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:03:59,789 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:03:59,790 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:03:59,791 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:03:59,791 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:03:59,792 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:03:59,792 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:03:59,793 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:03:59,793 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:03:59,793 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:03:59,796 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:03:59,797 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:03:59,797 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-27 00:03:59,817 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:03:59,817 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:03:59,818 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:03:59,819 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:03:59,819 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:03:59,819 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:03:59,819 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:03:59,820 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:03:59,821 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:03:59,822 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:03:59,822 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:03:59,822 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:03:59,822 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:03:59,822 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:03:59,822 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:03:59,823 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-27 00:03:59,823 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-27 00:03:59,823 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:03:59,823 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:03:59,824 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:03:59,824 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:03:59,824 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:03:59,824 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:03:59,824 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:03:59,824 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:03:59,825 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:03:59,825 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:03:59,825 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:03:59,825 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-27 00:03:59,825 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:03:59,825 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-27 00:03:59,825 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-27 00:03:59,826 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_a543204a-29e2-445a-b32a-929ab88782c1/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 -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-10-27 00:03:59,876 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:03:59,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:03:59,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:03:59,890 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:03:59,890 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:03:59,891 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-10-27 00:03:59,943 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/data/3d4851335/906f2c1264d44c5482986f8879314897/FLAG198b05351 [2018-10-27 00:04:00,360 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:04:00,361 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-10-27 00:04:00,375 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/data/3d4851335/906f2c1264d44c5482986f8879314897/FLAG198b05351 [2018-10-27 00:04:00,392 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/data/3d4851335/906f2c1264d44c5482986f8879314897 [2018-10-27 00:04:00,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:04:00,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:04:00,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:04:00,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:04:00,405 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:04:00,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:04:00" (1/1) ... [2018-10-27 00:04:00,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca949da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00, skipping insertion in model container [2018-10-27 00:04:00,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:04:00" (1/1) ... [2018-10-27 00:04:00,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:04:00,450 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:04:00,715 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:04:00,723 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:04:00,785 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:04:00,807 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:04:00,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00 WrapperNode [2018-10-27 00:04:00,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:04:00,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:04:00,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:04:00,808 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:04:00,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00" (1/1) ... [2018-10-27 00:04:00,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00" (1/1) ... [2018-10-27 00:04:00,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:04:00,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:04:00,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:04:00,871 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:04:00,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00" (1/1) ... [2018-10-27 00:04:00,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00" (1/1) ... [2018-10-27 00:04:00,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00" (1/1) ... [2018-10-27 00:04:00,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00" (1/1) ... [2018-10-27 00:04:00,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00" (1/1) ... [2018-10-27 00:04:00,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00" (1/1) ... [2018-10-27 00:04:00,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00" (1/1) ... [2018-10-27 00:04:00,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:04:00,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:04:00,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:04:00,919 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:04:00,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/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 [2018-10-27 00:04:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:04:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:04:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-10-27 00:04:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-10-27 00:04:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-27 00:04:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-27 00:04:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:04:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:04:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-10-27 00:04:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-10-27 00:04:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:04:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:04:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-10-27 00:04:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-10-27 00:04:01,400 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:04:08,335 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:04:08,423 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:04:11,299 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:04:12,757 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:04:12,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:04:12 BoogieIcfgContainer [2018-10-27 00:04:12,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:04:12,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:04:12,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:04:12,760 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:04:12,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:04:00" (1/3) ... [2018-10-27 00:04:12,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2857f1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:04:12, skipping insertion in model container [2018-10-27 00:04:12,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:04:00" (2/3) ... [2018-10-27 00:04:12,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2857f1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:04:12, skipping insertion in model container [2018-10-27 00:04:12,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:04:12" (3/3) ... [2018-10-27 00:04:12,764 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-10-27 00:04:12,771 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:04:12,776 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:04:12,789 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:04:12,815 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:04:12,815 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:04:12,815 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:04:12,815 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:04:12,816 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:04:12,816 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:04:12,816 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:04:12,816 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:04:12,816 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:04:12,833 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-10-27 00:04:12,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-27 00:04:12,839 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:04:12,839 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:04:12,841 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:04:12,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:04:12,847 INFO L82 PathProgramCache]: Analyzing trace with hash 19313515, now seen corresponding path program 1 times [2018-10-27 00:04:12,851 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:04:12,851 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/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 [2018-10-27 00:04:12,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:04:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:04:13,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:04:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:04:13,097 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:04:13,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:04:13,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:04:13,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:04:13,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:04:13,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:04:13,126 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2018-10-27 00:04:13,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:04:13,153 INFO L93 Difference]: Finished difference Result 146 states and 216 transitions. [2018-10-27 00:04:13,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:04:13,154 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-10-27 00:04:13,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:04:13,161 INFO L225 Difference]: With dead ends: 146 [2018-10-27 00:04:13,161 INFO L226 Difference]: Without dead ends: 73 [2018-10-27 00:04:13,165 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:04:13,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-10-27 00:04:13,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-10-27 00:04:13,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-10-27 00:04:13,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2018-10-27 00:04:13,199 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 20 [2018-10-27 00:04:13,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:04:13,199 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2018-10-27 00:04:13,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:04:13,199 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-10-27 00:04:13,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 00:04:13,200 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:04:13,200 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:04:13,201 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:04:13,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:04:13,201 INFO L82 PathProgramCache]: Analyzing trace with hash 823911669, now seen corresponding path program 1 times [2018-10-27 00:04:13,202 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:04:13,202 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/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 [2018-10-27 00:04:13,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:04:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:04:13,472 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:04:13,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:04:13,671 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:04:13,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:04:13,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 00:04:13,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:04:13,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:04:13,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:04:13,684 INFO L87 Difference]: Start difference. First operand 73 states and 90 transitions. Second operand 7 states. [2018-10-27 00:04:14,195 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-27 00:04:21,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:04:21,985 INFO L93 Difference]: Finished difference Result 86 states and 103 transitions. [2018-10-27 00:04:21,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:04:21,987 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-10-27 00:04:21,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:04:21,991 INFO L225 Difference]: With dead ends: 86 [2018-10-27 00:04:21,991 INFO L226 Difference]: Without dead ends: 76 [2018-10-27 00:04:21,992 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-10-27 00:04:21,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-10-27 00:04:22,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2018-10-27 00:04:22,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-10-27 00:04:22,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2018-10-27 00:04:22,003 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 89 transitions. Word has length 21 [2018-10-27 00:04:22,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:04:22,003 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 89 transitions. [2018-10-27 00:04:22,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:04:22,004 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2018-10-27 00:04:22,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 00:04:22,004 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:04:22,005 INFO L375 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] [2018-10-27 00:04:22,005 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:04:22,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:04:22,005 INFO L82 PathProgramCache]: Analyzing trace with hash -960001939, now seen corresponding path program 1 times [2018-10-27 00:04:22,007 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:04:22,007 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/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 [2018-10-27 00:04:22,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:04:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:04:22,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:04:24,440 WARN L179 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-10-27 00:04:26,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:04:26,593 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:04:26,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:04:26,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-27 00:04:26,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 00:04:26,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 00:04:26,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:04:26,604 INFO L87 Difference]: Start difference. First operand 73 states and 89 transitions. Second operand 9 states. [2018-10-27 00:04:30,899 WARN L179 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 9 [2018-10-27 00:04:38,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:04:38,179 INFO L93 Difference]: Finished difference Result 82 states and 98 transitions. [2018-10-27 00:04:38,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 00:04:38,181 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-10-27 00:04:38,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:04:38,184 INFO L225 Difference]: With dead ends: 82 [2018-10-27 00:04:38,184 INFO L226 Difference]: Without dead ends: 75 [2018-10-27 00:04:38,185 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-10-27 00:04:38,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-10-27 00:04:38,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2018-10-27 00:04:38,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-10-27 00:04:38,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2018-10-27 00:04:38,200 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 22 [2018-10-27 00:04:38,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:04:38,200 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2018-10-27 00:04:38,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 00:04:38,201 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2018-10-27 00:04:38,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-27 00:04:38,201 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:04:38,202 INFO L375 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] [2018-10-27 00:04:38,202 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:04:38,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:04:38,202 INFO L82 PathProgramCache]: Analyzing trace with hash -431370173, now seen corresponding path program 1 times [2018-10-27 00:04:38,203 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:04:38,203 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-10-27 00:04:38,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:04:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:04:39,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:04:39,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:04:39,437 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:04:39,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:04:39,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 00:04:39,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:04:39,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:04:39,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:04:39,467 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand 7 states. [2018-10-27 00:04:44,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:04:44,430 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2018-10-27 00:04:44,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 00:04:44,433 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-10-27 00:04:44,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:04:44,434 INFO L225 Difference]: With dead ends: 75 [2018-10-27 00:04:44,434 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:04:44,434 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-10-27 00:04:44,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:04:44,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:04:44,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:04:44,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:04:44,435 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-10-27 00:04:44,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:04:44,435 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:04:44,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:04:44,436 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:04:44,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:04:44,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:04:44,705 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-10-27 00:04:44,705 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-10-27 00:04:44,705 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-10-27 00:04:44,705 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:04:44,705 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:04:44,706 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:04:44,706 INFO L425 ceAbstractionStarter]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2018-10-27 00:04:44,706 INFO L428 ceAbstractionStarter]: At program point L130-3(lines 130 134) the Hoare annotation is: true [2018-10-27 00:04:44,706 INFO L425 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 128 141) no Hoare annotation was computed. [2018-10-27 00:04:44,706 INFO L425 ceAbstractionStarter]: For program point L135(lines 135 139) no Hoare annotation was computed. [2018-10-27 00:04:44,706 INFO L425 ceAbstractionStarter]: For program point L135-2(lines 128 141) no Hoare annotation was computed. [2018-10-27 00:04:44,706 INFO L425 ceAbstractionStarter]: For program point L135-3(lines 135 139) no Hoare annotation was computed. [2018-10-27 00:04:44,707 INFO L425 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 128 141) no Hoare annotation was computed. [2018-10-27 00:04:44,707 INFO L428 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 128 141) the Hoare annotation is: true [2018-10-27 00:04:44,707 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:04:44,707 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 00:04:44,707 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:04:44,707 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:04:44,707 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 221 238) the Hoare annotation is: true [2018-10-27 00:04:44,708 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2018-10-27 00:04:44,708 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 221 238) no Hoare annotation was computed. [2018-10-27 00:04:44,708 INFO L425 ceAbstractionStarter]: For program point L233(line 233) no Hoare annotation was computed. [2018-10-27 00:04:44,708 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 221 238) no Hoare annotation was computed. [2018-10-27 00:04:44,708 INFO L421 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (let ((.cse0 (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= (let ((.cse1 (fp.sub RNE .cse0 .cse0))) (fp.div RNE .cse1 .cse1)) main_~res~0))) [2018-10-27 00:04:44,708 INFO L425 ceAbstractionStarter]: For program point L232-1(lines 232 235) no Hoare annotation was computed. [2018-10-27 00:04:44,708 INFO L421 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) [2018-10-27 00:04:44,709 INFO L425 ceAbstractionStarter]: For program point L229-1(line 229) no Hoare annotation was computed. [2018-10-27 00:04:44,709 INFO L421 ceAbstractionStarter]: At program point L192(line 192) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand __ieee754_asinf_~hx~1 (_ bv2147483647 32)) __ieee754_asinf_~ix~3))) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (not (bvsgt (bvand __ieee754_asinf_~hx~1 (_ bv2147483647 32)) (_ bv1065353216 32))))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)) [2018-10-27 00:04:44,709 INFO L425 ceAbstractionStarter]: For program point L192-1(line 192) no Hoare annotation was computed. [2018-10-27 00:04:44,709 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-10-27 00:04:44,709 INFO L425 ceAbstractionStarter]: For program point L168(lines 168 181) no Hoare annotation was computed. [2018-10-27 00:04:44,709 INFO L425 ceAbstractionStarter]: For program point L193(lines 193 214) no Hoare annotation was computed. [2018-10-27 00:04:44,709 INFO L425 ceAbstractionStarter]: For program point L193-2(lines 153 219) no Hoare annotation was computed. [2018-10-27 00:04:44,710 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2018-10-27 00:04:44,712 INFO L421 ceAbstractionStarter]: At program point L156-3(lines 156 160) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-10-27 00:04:44,712 INFO L425 ceAbstractionStarter]: For program point L156-4(lines 156 160) no Hoare annotation was computed. [2018-10-27 00:04:44,712 INFO L425 ceAbstractionStarter]: For program point L169(lines 169 170) no Hoare annotation was computed. [2018-10-27 00:04:44,712 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 182) no Hoare annotation was computed. [2018-10-27 00:04:44,712 INFO L428 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 153 219) the Hoare annotation is: true [2018-10-27 00:04:44,712 INFO L425 ceAbstractionStarter]: For program point L199-1(lines 199 203) no Hoare annotation was computed. [2018-10-27 00:04:44,712 INFO L421 ceAbstractionStarter]: At program point L199-3(lines 199 203) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand __ieee754_asinf_~hx~1 (_ bv2147483647 32)) __ieee754_asinf_~ix~3))) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (not (bvsgt (bvand __ieee754_asinf_~hx~1 (_ bv2147483647 32)) (_ bv1065353216 32))))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)) [2018-10-27 00:04:44,713 INFO L425 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 153 219) no Hoare annotation was computed. [2018-10-27 00:04:44,713 INFO L425 ceAbstractionStarter]: For program point L162(lines 162 182) no Hoare annotation was computed. [2018-10-27 00:04:44,713 INFO L425 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 153 219) no Hoare annotation was computed. [2018-10-27 00:04:44,713 INFO L425 ceAbstractionStarter]: For program point L204(lines 204 208) no Hoare annotation was computed. [2018-10-27 00:04:44,713 INFO L425 ceAbstractionStarter]: For program point L204-2(lines 196 214) no Hoare annotation was computed. [2018-10-27 00:04:44,713 INFO L425 ceAbstractionStarter]: For program point L204-3(lines 204 208) no Hoare annotation was computed. [2018-10-27 00:04:44,713 INFO L425 ceAbstractionStarter]: For program point L167(lines 167 182) no Hoare annotation was computed. [2018-10-27 00:04:44,714 INFO L421 ceAbstractionStarter]: At program point L167-1(lines 167 182) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand __ieee754_asinf_~hx~1 (_ bv2147483647 32)) __ieee754_asinf_~ix~3))) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (not (bvsgt (bvand __ieee754_asinf_~hx~1 (_ bv2147483647 32)) (_ bv1065353216 32))))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)) [2018-10-27 00:04:44,714 INFO L425 ceAbstractionStarter]: For program point L77(lines 77 78) no Hoare annotation was computed. [2018-10-27 00:04:44,714 INFO L425 ceAbstractionStarter]: For program point L98-1(lines 98 107) no Hoare annotation was computed. [2018-10-27 00:04:44,714 INFO L428 ceAbstractionStarter]: At program point L98-3(lines 98 107) the Hoare annotation is: true [2018-10-27 00:04:44,714 INFO L425 ceAbstractionStarter]: For program point L98-4(lines 62 127) no Hoare annotation was computed. [2018-10-27 00:04:44,714 INFO L425 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2018-10-27 00:04:44,714 INFO L425 ceAbstractionStarter]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2018-10-27 00:04:44,714 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 62 127) the Hoare annotation is: true [2018-10-27 00:04:44,715 INFO L425 ceAbstractionStarter]: For program point L111(lines 111 117) no Hoare annotation was computed. [2018-10-27 00:04:44,715 INFO L425 ceAbstractionStarter]: For program point L74(lines 74 75) no Hoare annotation was computed. [2018-10-27 00:04:44,715 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 62 127) no Hoare annotation was computed. [2018-10-27 00:04:44,715 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 62 127) no Hoare annotation was computed. [2018-10-27 00:04:44,715 INFO L425 ceAbstractionStarter]: For program point L83(lines 83 87) no Hoare annotation was computed. [2018-10-27 00:04:44,715 INFO L425 ceAbstractionStarter]: For program point L83-2(lines 83 87) no Hoare annotation was computed. [2018-10-27 00:04:44,715 INFO L425 ceAbstractionStarter]: For program point L79(lines 79 80) no Hoare annotation was computed. [2018-10-27 00:04:44,715 INFO L425 ceAbstractionStarter]: For program point L100(lines 100 104) no Hoare annotation was computed. [2018-10-27 00:04:44,715 INFO L425 ceAbstractionStarter]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2018-10-27 00:04:44,716 INFO L425 ceAbstractionStarter]: For program point L100-2(lines 100 104) no Hoare annotation was computed. [2018-10-27 00:04:44,716 INFO L428 ceAbstractionStarter]: At program point L67-3(lines 67 71) the Hoare annotation is: true [2018-10-27 00:04:44,716 INFO L425 ceAbstractionStarter]: For program point L67-4(lines 67 71) no Hoare annotation was computed. [2018-10-27 00:04:44,716 INFO L425 ceAbstractionStarter]: For program point L121-1(lines 121 125) no Hoare annotation was computed. [2018-10-27 00:04:44,716 INFO L428 ceAbstractionStarter]: At program point L121-3(lines 121 125) the Hoare annotation is: true [2018-10-27 00:04:44,716 INFO L425 ceAbstractionStarter]: For program point L121-4(lines 121 125) no Hoare annotation was computed. [2018-10-27 00:04:44,716 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 84 85) no Hoare annotation was computed. [2018-10-27 00:04:44,716 INFO L425 ceAbstractionStarter]: For program point L84-3(lines 84 85) no Hoare annotation was computed. [2018-10-27 00:04:44,717 INFO L425 ceAbstractionStarter]: For program point L113(lines 113 116) no Hoare annotation was computed. [2018-10-27 00:04:44,717 INFO L428 ceAbstractionStarter]: At program point L84-4(lines 84 85) the Hoare annotation is: true [2018-10-27 00:04:44,717 INFO L425 ceAbstractionStarter]: For program point L84-5(lines 84 85) no Hoare annotation was computed. [2018-10-27 00:04:44,717 INFO L425 ceAbstractionStarter]: For program point L109(lines 109 118) no Hoare annotation was computed. [2018-10-27 00:04:44,725 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,734 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,735 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,735 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,735 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,736 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,736 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,736 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,745 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,747 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,748 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,748 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,748 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,749 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,749 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,749 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:04:44 BoogieIcfgContainer [2018-10-27 00:04:44,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:04:44,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:04:44,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:04:44,759 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:04:44,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:04:12" (3/4) ... [2018-10-27 00:04:44,766 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:04:44,776 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-10-27 00:04:44,776 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:04:44,776 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-10-27 00:04:44,776 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:04:44,777 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-10-27 00:04:44,777 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-10-27 00:04:44,787 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 122 nodes and edges [2018-10-27 00:04:44,787 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2018-10-27 00:04:44,788 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-10-27 00:04:44,788 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 00:04:44,826 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-27 00:04:44,827 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(__ieee754_asinf_~hx~1, 2147483647bv32) == ix)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && !~bvsgt32(~bvand32(__ieee754_asinf_~hx~1, 2147483647bv32), 1065353216bv32))) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x) [2018-10-27 00:04:44,900 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a543204a-29e2-445a-b32a-929ab88782c1/bin-2019/utaipan/witness.graphml [2018-10-27 00:04:44,904 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:04:44,905 INFO L168 Benchmark]: Toolchain (without parser) took 44506.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 951.9 MB in the beginning and 931.6 MB in the end (delta: 20.3 MB). Peak memory consumption was 184.9 MB. Max. memory is 11.5 GB. [2018-10-27 00:04:44,906 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-10-27 00:04:44,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.59 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 930.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:04:44,906 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.80 ms. Allocated memory is still 1.0 GB. Free memory is still 930.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:04:44,907 INFO L168 Benchmark]: Boogie Preprocessor took 47.70 ms. Allocated memory is still 1.0 GB. Free memory was 930.4 MB in the beginning and 925.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:04:44,909 INFO L168 Benchmark]: RCFGBuilder took 11838.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 925.1 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:04:44,910 INFO L168 Benchmark]: TraceAbstraction took 32000.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.2 MB in the end (delta: 166.9 MB). Peak memory consumption was 166.9 MB. Max. memory is 11.5 GB. [2018-10-27 00:04:44,910 INFO L168 Benchmark]: Witness Printer took 145.30 ms. Allocated memory is still 1.2 GB. Free memory was 938.2 MB in the beginning and 931.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:04:44,913 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 407.59 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 930.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.80 ms. Allocated memory is still 1.0 GB. Free memory is still 930.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.70 ms. Allocated memory is still 1.0 GB. Free memory was 930.4 MB in the beginning and 925.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11838.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 925.1 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32000.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.2 MB in the end (delta: 166.9 MB). Peak memory consumption was 166.9 MB. Max. memory is 11.5 GB. * Witness Printer took 145.30 ms. Allocated memory is still 1.2 GB. Free memory was 938.2 MB in the beginning and 931.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 233]: 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: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant [2018-10-27 00:04:44,919 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,920 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,920 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,920 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,920 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,921 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,921 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,921 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,926 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,926 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,926 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,927 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,927 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,927 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,927 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-10-27 00:04:44,927 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(__ieee754_asinf_~hx~1, 2147483647bv32) == ix)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && !~bvsgt32(~bvand32(__ieee754_asinf_~hx~1, 2147483647bv32), 1065353216bv32))) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 77 locations, 1 error locations. SAFE Result, 31.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 24.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 317 SDtfs, 168 SDslu, 1146 SDs, 0 SdLazy, 157 SolverSat, 17 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 18.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 29 PreInvPairs, 39 NumberOfFragments, 209 HoareAnnotationTreeSize, 29 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 83 ConstructedInterpolants, 9 QuantifiedInterpolants, 9099 SizeOfPredicates, 22 NumberOfNonLiveVariables, 480 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...