./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/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 61816a63e70562669051a12493c2c5215c575cb7 ............................................................................................................................................................................................................................................................................................................................. 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_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/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 61816a63e70562669051a12493c2c5215c575cb7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:32:52,380 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:32:52,381 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:32:52,388 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:32:52,388 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:32:52,389 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:32:52,390 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:32:52,391 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:32:52,392 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:32:52,392 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:32:52,393 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:32:52,393 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:32:52,394 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:32:52,394 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:32:52,395 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:32:52,396 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:32:52,396 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:32:52,397 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:32:52,399 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:32:52,400 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:32:52,400 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:32:52,401 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:32:52,403 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:32:52,403 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:32:52,403 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:32:52,404 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:32:52,404 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:32:52,405 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:32:52,405 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:32:52,406 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:32:52,406 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:32:52,407 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:32:52,407 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:32:52,407 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:32:52,407 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:32:52,408 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:32:52,408 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:32:52,418 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:32:52,419 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:32:52,419 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:32:52,419 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:32:52,419 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:32:52,420 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:32:52,420 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:32:52,420 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:32:52,420 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:32:52,420 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:32:52,420 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:32:52,420 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:32:52,421 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:32:52,421 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:32:52,421 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:32:52,421 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:32:52,422 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:32:52,422 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:32:52,422 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:32:52,422 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:32:52,422 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:32:52,422 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:32:52,422 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:32:52,423 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:32:52,423 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:32:52,423 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:32:52,423 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:32:52,423 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:32:52,423 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:32:52,423 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:32:52,424 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:32:52,424 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:32:52,424 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:32:52,424 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:32:52,424 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:32:52,424 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:32:52,424 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:32:52,425 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_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/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 -> 61816a63e70562669051a12493c2c5215c575cb7 [2018-11-18 15:32:52,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:32:52,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:32:52,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:32:52,462 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:32:52,463 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:32:52,463 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c [2018-11-18 15:32:52,504 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/data/b90307c55/97220dbd614b4d3888181ca395ff25a4/FLAG371fcd7ae [2018-11-18 15:32:52,887 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:32:52,888 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c [2018-11-18 15:32:52,892 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/data/b90307c55/97220dbd614b4d3888181ca395ff25a4/FLAG371fcd7ae [2018-11-18 15:32:52,901 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/data/b90307c55/97220dbd614b4d3888181ca395ff25a4 [2018-11-18 15:32:52,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:32:52,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:32:52,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:32:52,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:32:52,906 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:32:52,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:32:52" (1/1) ... [2018-11-18 15:32:52,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a2125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:52, skipping insertion in model container [2018-11-18 15:32:52,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:32:52" (1/1) ... [2018-11-18 15:32:52,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:32:52,927 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:32:53,040 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:32:53,042 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:32:53,058 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:32:53,075 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:32:53,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:53 WrapperNode [2018-11-18 15:32:53,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:32:53,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:32:53,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:32:53,076 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:32:53,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:53" (1/1) ... [2018-11-18 15:32:53,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:53" (1/1) ... [2018-11-18 15:32:53,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:32:53,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:32:53,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:32:53,093 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:32:53,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:53" (1/1) ... [2018-11-18 15:32:53,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:53" (1/1) ... [2018-11-18 15:32:53,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:53" (1/1) ... [2018-11-18 15:32:53,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:53" (1/1) ... [2018-11-18 15:32:53,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:53" (1/1) ... [2018-11-18 15:32:53,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:53" (1/1) ... [2018-11-18 15:32:53,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:53" (1/1) ... [2018-11-18 15:32:53,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:32:53,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:32:53,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:32:53,155 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:32:53,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:32:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:32:53,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:32:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 15:32:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:32:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-18 15:32:53,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-18 15:32:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:32:53,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:32:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 15:32:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:32:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:32:53,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:32:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:32:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-18 15:32:53,188 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-18 15:32:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:32:53,360 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:32:53,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:32:53 BoogieIcfgContainer [2018-11-18 15:32:53,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:32:53,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:32:53,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:32:53,364 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:32:53,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:32:52" (1/3) ... [2018-11-18 15:32:53,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@858a55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:32:53, skipping insertion in model container [2018-11-18 15:32:53,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:53" (2/3) ... [2018-11-18 15:32:53,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@858a55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:32:53, skipping insertion in model container [2018-11-18 15:32:53,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:32:53" (3/3) ... [2018-11-18 15:32:53,366 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072a_true-unreach-call.c [2018-11-18 15:32:53,372 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:32:53,376 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:32:53,388 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:32:53,409 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:32:53,409 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:32:53,409 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:32:53,409 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:32:53,409 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:32:53,409 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:32:53,409 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:32:53,409 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:32:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-18 15:32:53,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 15:32:53,426 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:32:53,426 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] [2018-11-18 15:32:53,428 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:32:53,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:32:53,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1304762677, now seen corresponding path program 1 times [2018-11-18 15:32:53,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:32:53,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:32:53,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:32:53,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:32:53,468 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:32:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:32:53,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:32:53,518 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:32:53,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:32:53,518 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:32:53,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:32:53,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:32:53,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:32:53,534 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-11-18 15:32:53,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:32:53,546 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2018-11-18 15:32:53,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:32:53,547 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 15:32:53,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:32:53,552 INFO L225 Difference]: With dead ends: 66 [2018-11-18 15:32:53,552 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 15:32:53,554 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:32:53,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 15:32:53,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 15:32:53,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 15:32:53,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-11-18 15:32:53,584 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2018-11-18 15:32:53,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:32:53,584 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-11-18 15:32:53,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:32:53,585 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-18 15:32:53,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 15:32:53,585 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:32:53,585 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, 1, 1] [2018-11-18 15:32:53,586 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:32:53,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:32:53,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1224071142, now seen corresponding path program 1 times [2018-11-18 15:32:53,586 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:32:53,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:32:53,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:32:53,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:32:53,587 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:32:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:32:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:32:53,665 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 15:32:53,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:32:53 BoogieIcfgContainer [2018-11-18 15:32:53,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:32:53,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:32:53,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:32:53,686 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:32:53,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:32:53" (3/4) ... [2018-11-18 15:32:53,689 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 15:32:53,689 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:32:53,689 INFO L168 Benchmark]: Toolchain (without parser) took 786.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 962.5 MB in the beginning and 1.1 GB in the end (delta: -103.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:32:53,691 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:32:53,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.56 ms. Allocated memory is still 1.0 GB. Free memory was 962.5 MB in the beginning and 946.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:32:53,691 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.56 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:32:53,692 INFO L168 Benchmark]: Boogie Preprocessor took 61.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:32:53,692 INFO L168 Benchmark]: RCFGBuilder took 206.37 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:32:53,693 INFO L168 Benchmark]: TraceAbstraction took 324.78 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: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2018-11-18 15:32:53,693 INFO L168 Benchmark]: Witness Printer took 2.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:32:53,695 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.56 ms. Allocated memory is still 1.0 GB. Free memory was 962.5 MB in the beginning and 946.4 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 16.56 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 206.37 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 324.78 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: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 67]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 38, overapproximation of bitwiseAnd at line 51. Possible FailurePath: [L62] float x = 1.0f / 0.0f; [L63] CALL, EXPR trunc_float(x) VAL [\old(x)=6442450950] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=6442450950, x=6442450950] [L15] FCALL ieee_float_shape_type gf_u; [L16] FCALL gf_u.value = (x) [L17] EXPR, FCALL gf_u.word [L17] (w) = gf_u.word [L18] COND FALSE !(0) VAL [\old(x)=6442450950, w=2147483647, x=6442450950] [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=6442450950, exponent_less_127=255, signbit=0, w=2147483647, x=6442450950] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6442450950, exponent_less_127=255, signbit=0, w=2147483647, x=6442450950] [L37] COND TRUE exponent_less_127 == 255 [L38] RET return x + x; VAL [\old(x)=6442450950, exponent_less_127=255, signbit=0, w=2147483647, x=6442450950] [L63] EXPR trunc_float(x) VAL [trunc_float(x)=6442450945, x=6442450950] [L63] float res = trunc_float(x); [L66] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450945] [L45] __int32_t ix; VAL [\old(x)=6442450945, x=6442450945] [L47] FCALL ieee_float_shape_type gf_u; [L48] FCALL gf_u.value = (x) [L49] EXPR, FCALL gf_u.word [L49] (ix) = gf_u.word [L50] COND FALSE !(0) VAL [\old(x)=6442450945, ix=-2147483648, x=6442450945] [L51] ix &= 0x7fffffff [L52] RET return ((ix) == 0x7f800000L); VAL [\old(x)=6442450945, \result=0, ix=0, x=6442450945] [L66] EXPR isinf_float(res) VAL [isinf_float(res)=0, res=6442450945, x=6442450950] [L66] COND TRUE !isinf_float(res) [L67] __VERIFIER_error() VAL [res=6442450945, x=6442450950] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 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=37occurred 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 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 0.1.23-5842f4b [2018-11-18 15:32:55,091 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:32:55,092 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:32:55,100 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:32:55,101 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:32:55,101 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:32:55,102 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:32:55,103 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:32:55,104 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:32:55,105 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:32:55,105 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:32:55,106 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:32:55,106 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:32:55,107 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:32:55,107 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:32:55,108 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:32:55,108 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:32:55,110 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:32:55,111 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:32:55,112 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:32:55,112 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:32:55,113 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:32:55,115 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:32:55,115 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:32:55,115 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:32:55,116 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:32:55,117 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:32:55,117 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:32:55,118 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:32:55,118 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:32:55,119 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:32:55,119 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:32:55,119 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:32:55,119 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:32:55,120 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:32:55,121 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:32:55,121 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 15:32:55,131 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:32:55,131 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:32:55,132 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:32:55,132 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:32:55,132 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:32:55,132 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:32:55,132 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:32:55,132 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:32:55,133 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:32:55,133 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:32:55,133 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:32:55,133 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:32:55,133 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:32:55,134 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:32:55,134 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:32:55,134 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:32:55,134 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:32:55,134 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 15:32:55,134 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 15:32:55,134 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:32:55,135 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:32:55,135 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:32:55,135 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:32:55,135 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:32:55,135 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:32:55,135 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:32:55,136 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:32:55,136 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:32:55,136 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:32:55,136 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:32:55,136 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:32:55,136 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 15:32:55,137 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:32:55,137 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 15:32:55,137 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 15:32:55,137 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_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/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 -> 61816a63e70562669051a12493c2c5215c575cb7 [2018-11-18 15:32:55,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:32:55,176 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:32:55,179 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:32:55,180 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:32:55,180 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:32:55,181 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c [2018-11-18 15:32:55,224 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/data/33b6402cc/4556c93810234fc9821427794dfced14/FLAG5145a7b24 [2018-11-18 15:32:55,546 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:32:55,547 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c [2018-11-18 15:32:55,550 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/data/33b6402cc/4556c93810234fc9821427794dfced14/FLAG5145a7b24 [2018-11-18 15:32:55,980 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/data/33b6402cc/4556c93810234fc9821427794dfced14 [2018-11-18 15:32:55,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:32:55,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:32:55,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:32:55,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:32:55,986 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:32:55,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:32:55" (1/1) ... [2018-11-18 15:32:55,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b46e370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:55, skipping insertion in model container [2018-11-18 15:32:55,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:32:55" (1/1) ... [2018-11-18 15:32:55,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:32:56,008 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:32:56,135 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:32:56,138 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:32:56,158 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:32:56,177 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:32:56,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:56 WrapperNode [2018-11-18 15:32:56,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:32:56,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:32:56,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:32:56,178 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:32:56,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:56" (1/1) ... [2018-11-18 15:32:56,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:56" (1/1) ... [2018-11-18 15:32:56,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:32:56,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:32:56,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:32:56,199 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:32:56,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:56" (1/1) ... [2018-11-18 15:32:56,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:56" (1/1) ... [2018-11-18 15:32:56,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:56" (1/1) ... [2018-11-18 15:32:56,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:56" (1/1) ... [2018-11-18 15:32:56,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:56" (1/1) ... [2018-11-18 15:32:56,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:56" (1/1) ... [2018-11-18 15:32:56,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:56" (1/1) ... [2018-11-18 15:32:56,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:32:56,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:32:56,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:32:56,228 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:32:56,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:32:56,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:32:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:32:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 15:32:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-18 15:32:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-18 15:32:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:32:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:32:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:32:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 15:32:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:32:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:32:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 15:32:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-18 15:32:56,314 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-18 15:32:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 15:32:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:32:56,510 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:32:56,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:32:56 BoogieIcfgContainer [2018-11-18 15:32:56,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:32:56,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:32:56,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:32:56,514 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:32:56,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:32:55" (1/3) ... [2018-11-18 15:32:56,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9d86e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:32:56, skipping insertion in model container [2018-11-18 15:32:56,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:32:56" (2/3) ... [2018-11-18 15:32:56,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9d86e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:32:56, skipping insertion in model container [2018-11-18 15:32:56,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:32:56" (3/3) ... [2018-11-18 15:32:56,516 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072a_true-unreach-call.c [2018-11-18 15:32:56,522 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:32:56,526 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:32:56,539 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:32:56,560 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:32:56,560 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:32:56,560 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:32:56,560 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:32:56,560 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:32:56,560 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:32:56,560 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:32:56,560 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:32:56,561 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:32:56,570 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-18 15:32:56,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 15:32:56,574 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:32:56,575 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] [2018-11-18 15:32:56,576 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:32:56,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:32:56,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1114677925, now seen corresponding path program 1 times [2018-11-18 15:32:56,581 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:32:56,582 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 15:32:56,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:32:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:32:56,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:32:56,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:32:56,653 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:32:56,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:32:56,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:32:56,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:32:56,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:32:56,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:32:56,679 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-18 15:32:56,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:32:56,692 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2018-11-18 15:32:56,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:32:56,694 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-18 15:32:56,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:32:56,701 INFO L225 Difference]: With dead ends: 64 [2018-11-18 15:32:56,701 INFO L226 Difference]: Without dead ends: 32 [2018-11-18 15:32:56,703 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:32:56,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-18 15:32:56,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-18 15:32:56,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-18 15:32:56,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-11-18 15:32:56,728 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 23 [2018-11-18 15:32:56,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:32:56,728 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-11-18 15:32:56,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:32:56,728 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-11-18 15:32:56,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 15:32:56,729 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:32:56,729 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, 1] [2018-11-18 15:32:56,729 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:32:56,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:32:56,730 INFO L82 PathProgramCache]: Analyzing trace with hash 979657341, now seen corresponding path program 1 times [2018-11-18 15:32:56,731 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:32:56,731 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 15:32:56,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:32:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:32:56,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:32:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:32:56,868 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:32:56,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:32:56,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:32:56,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:32:56,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:32:56,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:32:56,877 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 6 states. [2018-11-18 15:32:57,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:32:57,199 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2018-11-18 15:32:57,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:32:57,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 15:32:57,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:32:57,201 INFO L225 Difference]: With dead ends: 48 [2018-11-18 15:32:57,202 INFO L226 Difference]: Without dead ends: 35 [2018-11-18 15:32:57,202 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:32:57,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-18 15:32:57,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2018-11-18 15:32:57,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-18 15:32:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-11-18 15:32:57,208 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 25 [2018-11-18 15:32:57,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:32:57,208 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-11-18 15:32:57,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:32:57,209 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-11-18 15:32:57,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 15:32:57,209 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:32:57,209 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, 1, 1] [2018-11-18 15:32:57,210 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:32:57,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:32:57,210 INFO L82 PathProgramCache]: Analyzing trace with hash 718694770, now seen corresponding path program 1 times [2018-11-18 15:32:57,210 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:32:57,210 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 15:32:57,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:32:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:32:57,248 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:32:57,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:32:57,437 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:32:57,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:32:57,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 15:32:57,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 15:32:57,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 15:32:57,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:32:57,447 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 11 states. [2018-11-18 15:32:57,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:32:57,775 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-18 15:32:57,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 15:32:57,776 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-18 15:32:57,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:32:57,777 INFO L225 Difference]: With dead ends: 40 [2018-11-18 15:32:57,777 INFO L226 Difference]: Without dead ends: 31 [2018-11-18 15:32:57,777 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-18 15:32:57,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-18 15:32:57,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-18 15:32:57,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-18 15:32:57,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-11-18 15:32:57,784 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 26 [2018-11-18 15:32:57,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:32:57,784 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-11-18 15:32:57,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 15:32:57,784 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-11-18 15:32:57,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 15:32:57,785 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:32:57,785 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, 1, 1, 1, 1] [2018-11-18 15:32:57,785 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:32:57,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:32:57,786 INFO L82 PathProgramCache]: Analyzing trace with hash 359254496, now seen corresponding path program 1 times [2018-11-18 15:32:57,786 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:32:57,786 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/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 [2018-11-18 15:32:57,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:32:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:32:57,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:32:57,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:32:57,888 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:32:57,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:32:57,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:32:57,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:32:57,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:32:57,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:32:57,898 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-11-18 15:32:58,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:32:58,063 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-11-18 15:32:58,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:32:58,064 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-11-18 15:32:58,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:32:58,064 INFO L225 Difference]: With dead ends: 31 [2018-11-18 15:32:58,064 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:32:58,065 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:32:58,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:32:58,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:32:58,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:32:58,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:32:58,066 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-11-18 15:32:58,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:32:58,066 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:32:58,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:32:58,066 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:32:58,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:32:58,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:32:58,192 INFO L428 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 44 53) the Hoare annotation is: true [2018-11-18 15:32:58,192 INFO L425 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2018-11-18 15:32:58,192 INFO L421 ceAbstractionStarter]: At program point L46-3(lines 46 50) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-18 15:32:58,192 INFO L425 ceAbstractionStarter]: For program point L46-4(lines 46 50) no Hoare annotation was computed. [2018-11-18 15:32:58,192 INFO L425 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 44 53) no Hoare annotation was computed. [2018-11-18 15:32:58,192 INFO L425 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 44 53) no Hoare annotation was computed. [2018-11-18 15:32:58,193 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:32:58,193 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:32:58,193 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:32:58,193 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:32:58,193 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 15:32:58,193 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:32:58,193 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:32:58,193 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 66 69) no Hoare annotation was computed. [2018-11-18 15:32:58,193 INFO L421 ceAbstractionStarter]: At program point L63(line 63) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-11-18 15:32:58,194 INFO L425 ceAbstractionStarter]: For program point L63-1(line 63) no Hoare annotation was computed. [2018-11-18 15:32:58,194 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 55 72) the Hoare annotation is: true [2018-11-18 15:32:58,194 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 55 72) no Hoare annotation was computed. [2018-11-18 15:32:58,194 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 67) no Hoare annotation was computed. [2018-11-18 15:32:58,194 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 55 72) no Hoare annotation was computed. [2018-11-18 15:32:58,194 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 15:32:58,195 INFO L421 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (and (= main_~res~0 .cse0) (= main_~x~0 .cse0))) [2018-11-18 15:32:58,195 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-18 15:32:58,195 INFO L425 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 12 41) no Hoare annotation was computed. [2018-11-18 15:32:58,195 INFO L421 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-11-18 15:32:58,195 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-18 15:32:58,195 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2018-11-18 15:32:58,195 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2018-11-18 15:32:58,195 INFO L428 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 12 41) the Hoare annotation is: true [2018-11-18 15:32:58,195 INFO L425 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 12 41) no Hoare annotation was computed. [2018-11-18 15:32:58,196 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-11-18 15:32:58,196 INFO L421 ceAbstractionStarter]: At program point L30-3(lines 30 34) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-11-18 15:32:58,196 INFO L425 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2018-11-18 15:32:58,196 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-18 15:32:58,196 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 18) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-11-18 15:32:58,196 INFO L425 ceAbstractionStarter]: For program point L14-4(lines 14 18) no Hoare annotation was computed. [2018-11-18 15:32:58,205 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,205 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,206 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,206 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,206 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,206 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,206 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,206 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,207 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,207 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,208 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,208 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,208 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,208 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,208 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,209 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,209 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,210 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,210 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,210 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,210 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,211 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,211 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,211 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,212 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,212 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,212 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,212 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,212 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,213 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,213 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,213 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:32:58 BoogieIcfgContainer [2018-11-18 15:32:58,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:32:58,215 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:32:58,215 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:32:58,215 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:32:58,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:32:56" (3/4) ... [2018-11-18 15:32:58,217 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:32:58,221 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-18 15:32:58,221 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:32:58,222 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:32:58,222 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-11-18 15:32:58,225 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-11-18 15:32:58,226 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-18 15:32:58,226 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:32:58,244 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-18 15:32:58,244 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 15:32:58,244 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-11-18 15:32:58,244 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-11-18 15:32:58,261 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5f7c38d1-5fa4-43c4-8668-cd566675fbd0/bin-2019/utaipan/witness.graphml [2018-11-18 15:32:58,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:32:58,262 INFO L168 Benchmark]: Toolchain (without parser) took 2279.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 948.7 MB in the beginning and 939.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 138.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:32:58,263 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:32:58,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.53 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:32:58,264 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.53 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:32:58,264 INFO L168 Benchmark]: Boogie Preprocessor took 28.61 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:32:58,264 INFO L168 Benchmark]: RCFGBuilder took 283.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -166.8 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:32:58,264 INFO L168 Benchmark]: TraceAbstraction took 1703.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 939.4 MB in the end (delta: 160.0 MB). Peak memory consumption was 160.0 MB. Max. memory is 11.5 GB. [2018-11-18 15:32:58,265 INFO L168 Benchmark]: Witness Printer took 46.51 ms. Allocated memory is still 1.2 GB. Free memory is still 939.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:32:58,266 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 194.53 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.6 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 20.53 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.61 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 283.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -166.8 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1703.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 939.4 MB in the end (delta: 160.0 MB). Peak memory consumption was 160.0 MB. Max. memory is 11.5 GB. * Witness Printer took 46.51 ms. Allocated memory is still 1.2 GB. Free memory is still 939.4 MB. There was no memory consumed. 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[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 67]: 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: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant [2018-11-18 15:32:58,270 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,270 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,271 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,271 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,271 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,271 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,271 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,271 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,272 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,272 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,272 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,272 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,272 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,272 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,273 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,273 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 24]: Loop Invariant [2018-11-18 15:32:58,273 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,273 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,273 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,273 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,274 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,274 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,274 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,274 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,274 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,274 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,274 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,275 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,283 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,283 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,283 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:32:58,283 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 74 SDslu, 320 SDs, 0 SdLazy, 135 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 23 NumberOfFragments, 143 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 11 QuantifiedInterpolants, 11867 SizeOfPredicates, 12 NumberOfNonLiveVariables, 265 ConjunctsInSsa, 26 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...