./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/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 03f3c06db3ef41593c24334f9583c5e77016ee88 .............................................................................................................................................................................................................................................................................................................................. 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_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/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 03f3c06db3ef41593c24334f9583c5e77016ee88 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 06:51:51,905 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 06:51:51,905 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 06:51:51,911 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 06:51:51,912 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 06:51:51,912 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 06:51:51,913 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 06:51:51,914 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 06:51:51,914 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 06:51:51,915 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 06:51:51,915 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 06:51:51,915 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 06:51:51,916 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 06:51:51,916 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 06:51:51,917 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 06:51:51,917 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 06:51:51,918 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 06:51:51,919 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 06:51:51,920 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 06:51:51,920 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 06:51:51,921 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 06:51:51,922 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 06:51:51,923 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 06:51:51,923 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 06:51:51,923 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 06:51:51,923 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 06:51:51,924 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 06:51:51,924 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 06:51:51,925 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 06:51:51,925 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 06:51:51,925 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 06:51:51,926 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 06:51:51,926 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 06:51:51,926 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 06:51:51,927 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 06:51:51,927 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 06:51:51,927 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 06:51:51,934 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 06:51:51,935 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 06:51:51,935 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 06:51:51,935 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 06:51:51,935 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 06:51:51,936 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 06:51:51,936 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 06:51:51,936 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 06:51:51,936 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 06:51:51,936 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 06:51:51,936 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 06:51:51,936 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 06:51:51,937 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 06:51:51,937 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 06:51:51,937 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 06:51:51,937 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 06:51:51,937 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 06:51:51,937 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 06:51:51,938 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 06:51:51,938 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 06:51:51,938 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 06:51:51,938 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 06:51:51,938 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 06:51:51,938 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 06:51:51,938 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 06:51:51,938 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 06:51:51,939 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 06:51:51,939 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 06:51:51,939 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 06:51:51,939 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 06:51:51,939 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 06:51:51,939 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 06:51:51,939 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 06:51:51,939 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 06:51:51,940 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 06:51:51,940 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 06:51:51,940 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_3f75e511-db65-4fc4-b0ab-dc9776702f45/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 -> 03f3c06db3ef41593c24334f9583c5e77016ee88 [2018-12-03 06:51:51,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 06:51:51,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 06:51:51,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 06:51:51,967 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 06:51:51,967 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 06:51:51,967 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-12-03 06:51:52,003 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/data/fb3d92854/a416cb46582a4d0089a13ba9b5712a6f/FLAGdd1e3c2ec [2018-12-03 06:51:52,425 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 06:51:52,425 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-12-03 06:51:52,429 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/data/fb3d92854/a416cb46582a4d0089a13ba9b5712a6f/FLAGdd1e3c2ec [2018-12-03 06:51:52,437 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/data/fb3d92854/a416cb46582a4d0089a13ba9b5712a6f [2018-12-03 06:51:52,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 06:51:52,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 06:51:52,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 06:51:52,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 06:51:52,442 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 06:51:52,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:51:52" (1/1) ... [2018-12-03 06:51:52,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d57af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52, skipping insertion in model container [2018-12-03 06:51:52,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:51:52" (1/1) ... [2018-12-03 06:51:52,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 06:51:52,460 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 06:51:52,563 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:51:52,566 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 06:51:52,588 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:51:52,630 INFO L195 MainTranslator]: Completed translation [2018-12-03 06:51:52,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52 WrapperNode [2018-12-03 06:51:52,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 06:51:52,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 06:51:52,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 06:51:52,631 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 06:51:52,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52" (1/1) ... [2018-12-03 06:51:52,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52" (1/1) ... [2018-12-03 06:51:52,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 06:51:52,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 06:51:52,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 06:51:52,650 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 06:51:52,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52" (1/1) ... [2018-12-03 06:51:52,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52" (1/1) ... [2018-12-03 06:51:52,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52" (1/1) ... [2018-12-03 06:51:52,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52" (1/1) ... [2018-12-03 06:51:52,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52" (1/1) ... [2018-12-03 06:51:52,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52" (1/1) ... [2018-12-03 06:51:52,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52" (1/1) ... [2018-12-03 06:51:52,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 06:51:52,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 06:51:52,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 06:51:52,680 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 06:51:52,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/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 [2018-12-03 06:51:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-12-03 06:51:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-12-03 06:51:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 06:51:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 06:51:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 06:51:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-03 06:51:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 06:51:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 06:51:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-03 06:51:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 06:51:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 06:51:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 06:51:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 06:51:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-03 06:51:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-03 06:51:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-03 06:51:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 06:51:52,913 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 06:51:52,913 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-03 06:51:52,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:51:52 BoogieIcfgContainer [2018-12-03 06:51:52,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 06:51:52,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 06:51:52,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 06:51:52,916 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 06:51:52,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 06:51:52" (1/3) ... [2018-12-03 06:51:52,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6e65fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:51:52, skipping insertion in model container [2018-12-03 06:51:52,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:52" (2/3) ... [2018-12-03 06:51:52,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6e65fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:51:52, skipping insertion in model container [2018-12-03 06:51:52,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:51:52" (3/3) ... [2018-12-03 06:51:52,918 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833_true-unreach-call.c [2018-12-03 06:51:52,924 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 06:51:52,928 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 06:51:52,937 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 06:51:52,955 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 06:51:52,955 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 06:51:52,955 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 06:51:52,955 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 06:51:52,955 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 06:51:52,955 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 06:51:52,955 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 06:51:52,955 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 06:51:52,965 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-03 06:51:52,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-03 06:51:52,968 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:51:52,968 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:51:52,970 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:51:52,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:51:52,973 INFO L82 PathProgramCache]: Analyzing trace with hash -282242941, now seen corresponding path program 1 times [2018-12-03 06:51:52,974 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:51:53,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:51:53,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:51:53,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:51:53,001 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:51:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:51:53,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:51:53,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:51:53,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 06:51:53,061 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:51:53,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 06:51:53,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 06:51:53,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 06:51:53,073 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-03 06:51:53,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:51:53,087 INFO L93 Difference]: Finished difference Result 100 states and 149 transitions. [2018-12-03 06:51:53,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 06:51:53,088 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-12-03 06:51:53,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:51:53,093 INFO L225 Difference]: With dead ends: 100 [2018-12-03 06:51:53,093 INFO L226 Difference]: Without dead ends: 50 [2018-12-03 06:51:53,095 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 06:51:53,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-03 06:51:53,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-03 06:51:53,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-03 06:51:53,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-12-03 06:51:53,118 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2018-12-03 06:51:53,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:51:53,118 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-12-03 06:51:53,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 06:51:53,118 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-12-03 06:51:53,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-03 06:51:53,119 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:51:53,119 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:51:53,119 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:51:53,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:51:53,119 INFO L82 PathProgramCache]: Analyzing trace with hash 947168922, now seen corresponding path program 1 times [2018-12-03 06:51:53,119 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:51:53,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:51:53,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:51:53,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:51:53,120 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:51:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 06:51:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 06:51:53,171 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 06:51:53,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 06:51:53 BoogieIcfgContainer [2018-12-03 06:51:53,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 06:51:53,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 06:51:53,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 06:51:53,195 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 06:51:53,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:51:52" (3/4) ... [2018-12-03 06:51:53,197 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-03 06:51:53,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 06:51:53,198 INFO L168 Benchmark]: Toolchain (without parser) took 758.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -74.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-12-03 06:51:53,199 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:51:53,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-12-03 06:51:53,199 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-03 06:51:53,200 INFO L168 Benchmark]: Boogie Preprocessor took 30.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-03 06:51:53,200 INFO L168 Benchmark]: RCFGBuilder took 233.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-12-03 06:51:53,200 INFO L168 Benchmark]: TraceAbstraction took 280.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-12-03 06:51:53,200 INFO L168 Benchmark]: Witness Printer took 2.66 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:51:53,202 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 190.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 233.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 280.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.66 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 131]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 130, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 47. Possible FailurePath: [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [\old(halF_exp)=31, \old(halF_exp)=19, \old(huge_exp)=13, \old(invln2_exp)=15, \old(ln2HI_exp)=9, \old(ln2HI_exp)=23, \old(ln2LO_exp)=25, \old(ln2LO_exp)=30, \old(one_exp)=32, \old(P1_exp)=18, \old(P2_exp)=21, \old(P3_exp)=27, \old(P4_exp)=29, \old(P5_exp)=28, \old(twom100_exp)=10, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L126] float x = -1.0f / 0.0f; VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L127] CALL, EXPR __ieee754_expf(x) VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L34] float y, hi, lo, c, t; [L35] __int32_t k = 0, xsb, sx; [L36] __uint32_t hx; VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (sx) = gf_u.word [L43] xsb = (sx >> 31) & 1 [L44] hx = sx & 0x7fffffff VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=3, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L46] COND TRUE ((hx) > 0x7f800000L) [L47] return x + x; VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, hx=2139095041, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=3, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L127] RET, EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=14, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L127] float res = __ieee754_expf(x); [L130] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=14, res == 0.0f && __signbit_float(res) == 0=0, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L130] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L131] __VERIFIER_error() VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=14, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 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=54occurred 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, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-03 06:51:54,551 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 06:51:54,552 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 06:51:54,558 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 06:51:54,558 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 06:51:54,559 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 06:51:54,559 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 06:51:54,560 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 06:51:54,561 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 06:51:54,561 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 06:51:54,562 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 06:51:54,562 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 06:51:54,562 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 06:51:54,563 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 06:51:54,563 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 06:51:54,564 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 06:51:54,564 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 06:51:54,565 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 06:51:54,566 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 06:51:54,566 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 06:51:54,567 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 06:51:54,567 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 06:51:54,568 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 06:51:54,568 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 06:51:54,569 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 06:51:54,569 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 06:51:54,569 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 06:51:54,570 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 06:51:54,570 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 06:51:54,571 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 06:51:54,571 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 06:51:54,571 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 06:51:54,571 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 06:51:54,571 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 06:51:54,572 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 06:51:54,572 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 06:51:54,572 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-03 06:51:54,579 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 06:51:54,580 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 06:51:54,580 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 06:51:54,580 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 06:51:54,580 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 06:51:54,580 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 06:51:54,580 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 06:51:54,580 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 06:51:54,580 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 06:51:54,581 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 06:51:54,581 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 06:51:54,581 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 06:51:54,581 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 06:51:54,581 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 06:51:54,581 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 06:51:54,581 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 06:51:54,581 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 06:51:54,581 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 06:51:54,581 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 06:51:54,582 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 06:51:54,582 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 06:51:54,582 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 06:51:54,582 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 06:51:54,582 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 06:51:54,582 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 06:51:54,582 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 06:51:54,582 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 06:51:54,582 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 06:51:54,582 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 06:51:54,582 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 06:51:54,583 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 06:51:54,583 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 06:51:54,583 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 06:51:54,583 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 06:51:54,583 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-03 06:51:54,583 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_3f75e511-db65-4fc4-b0ab-dc9776702f45/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 -> 03f3c06db3ef41593c24334f9583c5e77016ee88 [2018-12-03 06:51:54,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 06:51:54,607 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 06:51:54,609 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 06:51:54,610 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 06:51:54,610 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 06:51:54,610 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-12-03 06:51:54,646 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/data/35a1472d2/1bf67335ab9244ce8d71693e839d7dde/FLAGaf5a2dfc3 [2018-12-03 06:51:55,057 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 06:51:55,058 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-12-03 06:51:55,062 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/data/35a1472d2/1bf67335ab9244ce8d71693e839d7dde/FLAGaf5a2dfc3 [2018-12-03 06:51:55,070 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/data/35a1472d2/1bf67335ab9244ce8d71693e839d7dde [2018-12-03 06:51:55,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 06:51:55,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 06:51:55,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 06:51:55,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 06:51:55,075 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 06:51:55,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:51:55" (1/1) ... [2018-12-03 06:51:55,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b97ddff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55, skipping insertion in model container [2018-12-03 06:51:55,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:51:55" (1/1) ... [2018-12-03 06:51:55,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 06:51:55,092 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 06:51:55,200 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:51:55,205 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 06:51:55,231 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:51:55,246 INFO L195 MainTranslator]: Completed translation [2018-12-03 06:51:55,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55 WrapperNode [2018-12-03 06:51:55,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 06:51:55,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 06:51:55,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 06:51:55,248 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 06:51:55,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55" (1/1) ... [2018-12-03 06:51:55,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55" (1/1) ... [2018-12-03 06:51:55,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 06:51:55,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 06:51:55,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 06:51:55,299 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 06:51:55,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55" (1/1) ... [2018-12-03 06:51:55,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55" (1/1) ... [2018-12-03 06:51:55,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55" (1/1) ... [2018-12-03 06:51:55,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55" (1/1) ... [2018-12-03 06:51:55,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55" (1/1) ... [2018-12-03 06:51:55,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55" (1/1) ... [2018-12-03 06:51:55,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55" (1/1) ... [2018-12-03 06:51:55,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 06:51:55,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 06:51:55,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 06:51:55,333 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 06:51:55,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/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 [2018-12-03 06:51:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-12-03 06:51:55,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-12-03 06:51:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-03 06:51:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 06:51:55,363 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 06:51:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-03 06:51:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 06:51:55,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 06:51:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 06:51:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-03 06:51:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 06:51:55,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 06:51:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-03 06:51:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-03 06:51:55,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-03 06:51:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-03 06:51:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 06:51:55,458 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 06:52:04,005 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 06:52:04,028 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 06:52:04,102 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 06:52:04,126 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 06:52:04,132 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 06:52:04,132 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-03 06:52:04,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:52:04 BoogieIcfgContainer [2018-12-03 06:52:04,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 06:52:04,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 06:52:04,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 06:52:04,135 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 06:52:04,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 06:51:55" (1/3) ... [2018-12-03 06:52:04,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12302d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:52:04, skipping insertion in model container [2018-12-03 06:52:04,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:51:55" (2/3) ... [2018-12-03 06:52:04,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12302d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:52:04, skipping insertion in model container [2018-12-03 06:52:04,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:52:04" (3/3) ... [2018-12-03 06:52:04,137 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833_true-unreach-call.c [2018-12-03 06:52:04,142 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 06:52:04,147 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 06:52:04,155 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 06:52:04,172 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 06:52:04,172 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 06:52:04,172 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 06:52:04,172 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 06:52:04,172 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 06:52:04,172 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 06:52:04,173 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 06:52:04,173 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 06:52:04,173 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 06:52:04,182 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-03 06:52:04,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-03 06:52:04,185 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:52:04,186 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:52:04,187 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:52:04,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:52:04,190 INFO L82 PathProgramCache]: Analyzing trace with hash -282242941, now seen corresponding path program 1 times [2018-12-03 06:52:04,192 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:52:04,193 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/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 [2018-12-03 06:52:04,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:52:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:52:04,281 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:52:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:52:04,292 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:52:04,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:52:04,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 06:52:04,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 06:52:04,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 06:52:04,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 06:52:04,314 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-03 06:52:04,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:52:04,329 INFO L93 Difference]: Finished difference Result 100 states and 149 transitions. [2018-12-03 06:52:04,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 06:52:04,330 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-12-03 06:52:04,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:52:04,336 INFO L225 Difference]: With dead ends: 100 [2018-12-03 06:52:04,336 INFO L226 Difference]: Without dead ends: 50 [2018-12-03 06:52:04,338 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 06:52:04,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-03 06:52:04,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-03 06:52:04,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-03 06:52:04,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-12-03 06:52:04,361 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2018-12-03 06:52:04,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:52:04,361 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-12-03 06:52:04,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 06:52:04,361 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-12-03 06:52:04,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-03 06:52:04,362 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:52:04,362 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:52:04,362 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:52:04,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:52:04,362 INFO L82 PathProgramCache]: Analyzing trace with hash 947168922, now seen corresponding path program 1 times [2018-12-03 06:52:04,363 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:52:04,363 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/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 [2018-12-03 06:52:04,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:52:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:52:04,439 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:52:04,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:52:04,527 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:52:04,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:52:04,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 06:52:04,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 06:52:04,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 06:52:04,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 06:52:04,538 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 7 states. [2018-12-03 06:52:12,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:52:12,805 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2018-12-03 06:52:12,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 06:52:12,863 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-12-03 06:52:12,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:52:12,865 INFO L225 Difference]: With dead ends: 70 [2018-12-03 06:52:12,865 INFO L226 Difference]: Without dead ends: 55 [2018-12-03 06:52:12,866 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 06:52:12,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-12-03 06:52:12,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-12-03 06:52:12,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-03 06:52:12,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2018-12-03 06:52:12,871 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 18 [2018-12-03 06:52:12,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:52:12,871 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2018-12-03 06:52:12,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 06:52:12,871 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2018-12-03 06:52:12,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-03 06:52:12,872 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:52:12,872 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:52:12,872 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:52:12,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:52:12,872 INFO L82 PathProgramCache]: Analyzing trace with hash 413888862, now seen corresponding path program 1 times [2018-12-03 06:52:12,873 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:52:12,873 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/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 [2018-12-03 06:52:12,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:52:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:52:12,970 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:52:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:52:13,040 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:52:13,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:52:13,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 06:52:13,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 06:52:13,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 06:52:13,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 06:52:13,049 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2018-12-03 06:52:20,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:52:20,986 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2018-12-03 06:52:21,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 06:52:21,044 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-03 06:52:21,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:52:21,044 INFO L225 Difference]: With dead ends: 68 [2018-12-03 06:52:21,044 INFO L226 Difference]: Without dead ends: 53 [2018-12-03 06:52:21,045 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 06:52:21,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-03 06:52:21,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2018-12-03 06:52:21,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-03 06:52:21,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2018-12-03 06:52:21,049 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 20 [2018-12-03 06:52:21,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:52:21,049 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2018-12-03 06:52:21,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 06:52:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2018-12-03 06:52:21,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-03 06:52:21,050 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:52:21,050 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:52:21,050 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:52:21,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:52:21,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1852708709, now seen corresponding path program 1 times [2018-12-03 06:52:21,051 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:52:21,051 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/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 [2018-12-03 06:52:21,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:52:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:52:21,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:52:21,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:52:21,202 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:52:21,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:52:21,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 06:52:21,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 06:52:21,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 06:52:21,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 06:52:21,213 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 7 states. [2018-12-03 06:52:30,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:52:30,185 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2018-12-03 06:52:30,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 06:52:30,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-03 06:52:30,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:52:30,250 INFO L225 Difference]: With dead ends: 71 [2018-12-03 06:52:30,250 INFO L226 Difference]: Without dead ends: 55 [2018-12-03 06:52:30,250 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 06:52:30,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-12-03 06:52:30,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-12-03 06:52:30,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-03 06:52:30,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-12-03 06:52:30,256 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 21 [2018-12-03 06:52:30,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:52:30,256 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-12-03 06:52:30,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 06:52:30,257 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-12-03 06:52:30,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-03 06:52:30,257 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:52:30,258 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:52:30,258 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:52:30,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:52:30,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1043362083, now seen corresponding path program 1 times [2018-12-03 06:52:30,258 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:52:30,259 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-03 06:52:30,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:52:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:52:30,339 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:52:30,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:52:30,370 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:52:30,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:52:30,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 06:52:30,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 06:52:30,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 06:52:30,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 06:52:30,378 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 6 states. [2018-12-03 06:52:32,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:52:32,641 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2018-12-03 06:52:32,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 06:52:32,642 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-12-03 06:52:32,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:52:32,642 INFO L225 Difference]: With dead ends: 57 [2018-12-03 06:52:32,642 INFO L226 Difference]: Without dead ends: 54 [2018-12-03 06:52:32,643 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 06:52:32,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-03 06:52:32,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-12-03 06:52:32,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-03 06:52:32,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-12-03 06:52:32,646 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 21 [2018-12-03 06:52:32,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:52:32,646 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-12-03 06:52:32,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 06:52:32,646 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-12-03 06:52:32,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-03 06:52:32,647 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:52:32,647 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:52:32,647 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:52:32,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:52:32,647 INFO L82 PathProgramCache]: Analyzing trace with hash 2052493881, now seen corresponding path program 1 times [2018-12-03 06:52:32,648 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:52:32,648 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-03 06:52:32,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:52:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:52:33,339 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:52:33,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:52:33,414 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:52:33,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:52:33,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 06:52:33,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 06:52:33,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 06:52:33,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 06:52:33,428 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 7 states. [2018-12-03 06:52:46,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:52:46,758 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2018-12-03 06:52:46,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 06:52:46,820 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-12-03 06:52:46,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:52:46,821 INFO L225 Difference]: With dead ends: 84 [2018-12-03 06:52:46,821 INFO L226 Difference]: Without dead ends: 52 [2018-12-03 06:52:46,821 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 06:52:46,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-03 06:52:46,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-12-03 06:52:46,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-03 06:52:46,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-12-03 06:52:46,825 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 25 [2018-12-03 06:52:46,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:52:46,825 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-12-03 06:52:46,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 06:52:46,825 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-12-03 06:52:46,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-03 06:52:46,825 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:52:46,826 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:52:46,826 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:52:46,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:52:46,826 INFO L82 PathProgramCache]: Analyzing trace with hash -68429369, now seen corresponding path program 1 times [2018-12-03 06:52:46,826 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:52:46,826 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-12-03 06:52:46,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:52:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:52:47,766 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:52:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:52:47,829 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:52:47,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:52:47,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 06:52:47,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 06:52:47,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 06:52:47,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 06:52:47,847 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 7 states. [2018-12-03 06:52:56,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:52:56,570 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2018-12-03 06:52:56,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 06:52:56,629 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-03 06:52:56,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:52:56,630 INFO L225 Difference]: With dead ends: 63 [2018-12-03 06:52:56,630 INFO L226 Difference]: Without dead ends: 30 [2018-12-03 06:52:56,630 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-03 06:52:56,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-03 06:52:56,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-03 06:52:56,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-03 06:52:56,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2018-12-03 06:52:56,632 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 26 [2018-12-03 06:52:56,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:52:56,633 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2018-12-03 06:52:56,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 06:52:56,633 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2018-12-03 06:52:56,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-03 06:52:56,633 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:52:56,633 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:52:56,634 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:52:56,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:52:56,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1730002734, now seen corresponding path program 1 times [2018-12-03 06:52:56,634 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:52:56,634 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-12-03 06:52:56,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:52:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:52:56,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:52:56,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:52:56,839 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:52:56,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:52:56,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-03 06:52:56,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-03 06:52:56,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-03 06:52:56,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-03 06:52:56,848 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 11 states. [2018-12-03 06:52:57,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:52:57,140 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-12-03 06:52:57,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-03 06:52:57,140 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2018-12-03 06:52:57,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:52:57,141 INFO L225 Difference]: With dead ends: 30 [2018-12-03 06:52:57,141 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 06:52:57,141 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-12-03 06:52:57,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 06:52:57,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 06:52:57,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 06:52:57,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 06:52:57,141 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-12-03 06:52:57,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:52:57,142 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 06:52:57,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-03 06:52:57,142 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 06:52:57,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 06:52:57,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 06:52:57,200 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2018-12-03 06:52:57,200 INFO L448 ceAbstractionStarter]: For program point L94-1(lines 94 98) no Hoare annotation was computed. [2018-12-03 06:52:57,200 INFO L444 ceAbstractionStarter]: At program point L94-2(lines 94 98) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-12-03 06:52:57,200 INFO L448 ceAbstractionStarter]: For program point L86(lines 86 90) no Hoare annotation was computed. [2018-12-03 06:52:57,200 INFO L448 ceAbstractionStarter]: For program point L86-1(lines 79 92) no Hoare annotation was computed. [2018-12-03 06:52:57,200 INFO L448 ceAbstractionStarter]: For program point L86-2(lines 86 90) no Hoare annotation was computed. [2018-12-03 06:52:57,200 INFO L448 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 33 106) no Hoare annotation was computed. [2018-12-03 06:52:57,201 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 105) no Hoare annotation was computed. [2018-12-03 06:52:57,201 INFO L448 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-12-03 06:52:57,201 INFO L448 ceAbstractionStarter]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2018-12-03 06:52:57,201 INFO L444 ceAbstractionStarter]: At program point L38-2(lines 38 42) the Hoare annotation is: (= |__ieee754_expf_#in~x| __ieee754_expf_~x) [2018-12-03 06:52:57,201 INFO L448 ceAbstractionStarter]: For program point L38-3(lines 38 42) no Hoare annotation was computed. [2018-12-03 06:52:57,201 INFO L451 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 33 106) the Hoare annotation is: true [2018-12-03 06:52:57,201 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 70) no Hoare annotation was computed. [2018-12-03 06:52:57,201 INFO L448 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 33 106) no Hoare annotation was computed. [2018-12-03 06:52:57,201 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 65) no Hoare annotation was computed. [2018-12-03 06:52:57,201 INFO L448 ceAbstractionStarter]: For program point L56-2(lines 56 65) no Hoare annotation was computed. [2018-12-03 06:52:57,201 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 49) no Hoare annotation was computed. [2018-12-03 06:52:57,201 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 81 85) no Hoare annotation was computed. [2018-12-03 06:52:57,201 INFO L444 ceAbstractionStarter]: At program point L81-2(lines 81 85) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 103) no Hoare annotation was computed. [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 92 105) no Hoare annotation was computed. [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point L99-2(lines 99 103) no Hoare annotation was computed. [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 51) no Hoare annotation was computed. [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point L67(lines 67 70) no Hoare annotation was computed. [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point L67-2(lines 55 70) no Hoare annotation was computed. [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 69) no Hoare annotation was computed. [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 06:52:57,202 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 06:52:57,202 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 06:52:57,203 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 06:52:57,203 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 06:52:57,203 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 06:52:57,203 INFO L444 ceAbstractionStarter]: At program point L130-1(line 130) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) main_~res~0) (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) |main_#t~short20|) [2018-12-03 06:52:57,203 INFO L448 ceAbstractionStarter]: For program point L130-2(line 130) no Hoare annotation was computed. [2018-12-03 06:52:57,203 INFO L444 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-12-03 06:52:57,203 INFO L448 ceAbstractionStarter]: For program point L127-1(line 127) no Hoare annotation was computed. [2018-12-03 06:52:57,203 INFO L448 ceAbstractionStarter]: For program point L130-4(lines 130 133) no Hoare annotation was computed. [2018-12-03 06:52:57,203 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 120 136) the Hoare annotation is: true [2018-12-03 06:52:57,203 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 120 136) no Hoare annotation was computed. [2018-12-03 06:52:57,203 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 120 136) no Hoare annotation was computed. [2018-12-03 06:52:57,204 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 131) no Hoare annotation was computed. [2018-12-03 06:52:57,204 INFO L448 ceAbstractionStarter]: For program point L131(line 131) no Hoare annotation was computed. [2018-12-03 06:52:57,204 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-03 06:52:57,204 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 108 118) no Hoare annotation was computed. [2018-12-03 06:52:57,204 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 108 118) the Hoare annotation is: true [2018-12-03 06:52:57,204 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2018-12-03 06:52:57,204 INFO L444 ceAbstractionStarter]: At program point L111-2(lines 111 115) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-12-03 06:52:57,204 INFO L448 ceAbstractionStarter]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2018-12-03 06:52:57,204 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 108 118) no Hoare annotation was computed. [2018-12-03 06:52:57,208 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,209 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,209 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,209 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,213 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,214 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,214 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,214 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,215 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,215 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,215 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,215 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,215 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,216 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,216 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,216 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 06:52:57 BoogieIcfgContainer [2018-12-03 06:52:57,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 06:52:57,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 06:52:57,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 06:52:57,217 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 06:52:57,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:52:04" (3/4) ... [2018-12-03 06:52:57,220 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 06:52:57,224 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-12-03 06:52:57,224 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 06:52:57,224 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 06:52:57,224 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-12-03 06:52:57,227 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-12-03 06:52:57,228 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-03 06:52:57,228 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-03 06:52:57,228 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 06:52:57,228 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 06:52:57,244 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-03 06:52:57,244 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-03 06:52:57,245 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-12-03 06:52:57,245 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-12-03 06:52:57,259 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3f75e511-db65-4fc4-b0ab-dc9776702f45/bin-2019/utaipan/witness.graphml [2018-12-03 06:52:57,260 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 06:52:57,260 INFO L168 Benchmark]: Toolchain (without parser) took 62188.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.7 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -231.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:52:57,261 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:52:57,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.44 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-03 06:52:57,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -210.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-03 06:52:57,262 INFO L168 Benchmark]: Boogie Preprocessor took 33.95 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. [2018-12-03 06:52:57,262 INFO L168 Benchmark]: RCFGBuilder took 8800.09 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: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-12-03 06:52:57,262 INFO L168 Benchmark]: TraceAbstraction took 53083.93 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 58.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -83.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:52:57,262 INFO L168 Benchmark]: Witness Printer took 42.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-12-03 06:52:57,264 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.44 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 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 50.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -210.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.95 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. * RCFGBuilder took 8800.09 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: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 53083.93 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 58.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -83.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 42.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 131]: 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: 81]: Loop Invariant [2018-12-03 06:52:57,267 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,267 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,267 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,267 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,267 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,267 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,267 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,268 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 94]: Loop Invariant [2018-12-03 06:52:57,268 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,268 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,268 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,268 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 06:52:57,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. SAFE Result, 53.0s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 50.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 346 SDtfs, 343 SDslu, 1230 SDs, 0 SdLazy, 317 SolverSat, 6 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 47.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 8 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 24 PreInvPairs, 29 NumberOfFragments, 75 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 169 ConstructedInterpolants, 37 QuantifiedInterpolants, 23662 SizeOfPredicates, 25 NumberOfNonLiveVariables, 965 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...