./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_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_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c9cffacfd3e6caa748d273206d3a84e636fe987 ......................................................................................................................................................................................................................................................................................................................... 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_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c9cffacfd3e6caa748d273206d3a84e636fe987 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 19:09:20,808 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 19:09:20,809 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 19:09:20,815 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 19:09:20,815 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 19:09:20,815 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 19:09:20,816 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 19:09:20,817 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 19:09:20,818 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 19:09:20,818 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 19:09:20,818 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 19:09:20,819 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 19:09:20,819 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 19:09:20,820 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 19:09:20,820 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 19:09:20,820 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 19:09:20,821 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 19:09:20,822 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 19:09:20,823 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 19:09:20,823 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 19:09:20,824 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 19:09:20,824 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 19:09:20,825 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 19:09:20,826 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 19:09:20,826 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 19:09:20,826 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 19:09:20,827 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 19:09:20,827 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 19:09:20,827 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 19:09:20,828 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 19:09:20,828 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 19:09:20,829 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 19:09:20,829 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 19:09:20,829 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 19:09:20,829 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 19:09:20,830 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 19:09:20,830 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-01 19:09:20,837 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 19:09:20,837 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 19:09:20,837 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 19:09:20,837 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 19:09:20,838 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 19:09:20,838 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 19:09:20,838 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 19:09:20,838 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 19:09:20,838 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 19:09:20,839 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 19:09:20,839 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 19:09:20,839 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 19:09:20,839 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 19:09:20,839 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 19:09:20,839 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 19:09:20,839 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 19:09:20,839 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 19:09:20,840 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 19:09:20,840 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 19:09:20,840 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 19:09:20,840 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 19:09:20,840 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 19:09:20,840 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 19:09:20,840 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 19:09:20,840 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 19:09:20,841 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 19:09:20,841 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 19:09:20,841 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 19:09:20,841 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 19:09:20,841 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 19:09:20,841 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_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer 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 -> Automizer 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 -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2018-12-01 19:09:20,858 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 19:09:20,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 19:09:20,866 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 19:09:20,867 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 19:09:20,867 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 19:09:20,868 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-12-01 19:09:20,902 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/data/0f45f1311/aad2ec3045134273928ce2a4baf7718e/FLAG7bd50b9cb [2018-12-01 19:09:21,282 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 19:09:21,282 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-12-01 19:09:21,286 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/data/0f45f1311/aad2ec3045134273928ce2a4baf7718e/FLAG7bd50b9cb [2018-12-01 19:09:21,295 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/data/0f45f1311/aad2ec3045134273928ce2a4baf7718e [2018-12-01 19:09:21,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 19:09:21,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 19:09:21,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 19:09:21,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 19:09:21,300 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 19:09:21,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:09:21" (1/1) ... [2018-12-01 19:09:21,302 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 01.12 07:09:21, skipping insertion in model container [2018-12-01 19:09:21,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:09:21" (1/1) ... [2018-12-01 19:09:21,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 19:09:21,318 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 19:09:21,421 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 19:09:21,425 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 19:09:21,445 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 19:09:21,487 INFO L195 MainTranslator]: Completed translation [2018-12-01 19:09:21,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:21 WrapperNode [2018-12-01 19:09:21,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 19:09:21,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 19:09:21,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 19:09:21,488 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 19:09:21,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:21" (1/1) ... [2018-12-01 19:09:21,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:21" (1/1) ... [2018-12-01 19:09:21,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 19:09:21,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 19:09:21,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 19:09:21,504 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 19:09:21,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:21" (1/1) ... [2018-12-01 19:09:21,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:21" (1/1) ... [2018-12-01 19:09:21,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:21" (1/1) ... [2018-12-01 19:09:21,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:21" (1/1) ... [2018-12-01 19:09:21,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:21" (1/1) ... [2018-12-01 19:09:21,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:21" (1/1) ... [2018-12-01 19:09:21,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:21" (1/1) ... [2018-12-01 19:09:21,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 19:09:21,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 19:09:21,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 19:09:21,525 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 19:09:21,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/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 [2018-12-01 19:09:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-12-01 19:09:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-12-01 19:09:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 19:09:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 19:09:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 19:09:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-01 19:09:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 19:09:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 19:09:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-01 19:09:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 19:09:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 19:09:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 19:09:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 19:09:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-01 19:09:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 19:09:21,726 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 19:09:21,726 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-01 19:09:21,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:09:21 BoogieIcfgContainer [2018-12-01 19:09:21,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 19:09:21,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 19:09:21,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 19:09:21,729 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 19:09:21,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 07:09:21" (1/3) ... [2018-12-01 19:09:21,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15dac1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 07:09:21, skipping insertion in model container [2018-12-01 19:09:21,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:21" (2/3) ... [2018-12-01 19:09:21,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15dac1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 07:09:21, skipping insertion in model container [2018-12-01 19:09:21,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:09:21" (3/3) ... [2018-12-01 19:09:21,731 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b_true-unreach-call.c [2018-12-01 19:09:21,736 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 19:09:21,741 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-01 19:09:21,750 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-01 19:09:21,770 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 19:09:21,770 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 19:09:21,770 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 19:09:21,770 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 19:09:21,770 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 19:09:21,771 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 19:09:21,771 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 19:09:21,771 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 19:09:21,771 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 19:09:21,782 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-12-01 19:09:21,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-01 19:09:21,786 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:09:21,787 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:09:21,789 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:09:21,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:09:21,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1027521113, now seen corresponding path program 1 times [2018-12-01 19:09:21,795 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:09:21,795 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:09:21,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:09:21,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:09:21,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:09:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:09:21,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:09:21,892 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:09:21,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 19:09:21,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-01 19:09:21,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 19:09:21,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 19:09:21,903 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-12-01 19:09:21,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:09:21,916 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2018-12-01 19:09:21,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 19:09:21,916 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-12-01 19:09:21,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:09:21,922 INFO L225 Difference]: With dead ends: 82 [2018-12-01 19:09:21,923 INFO L226 Difference]: Without dead ends: 41 [2018-12-01 19:09:21,924 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 [2018-12-01 19:09:21,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-01 19:09:21,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-01 19:09:21,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-01 19:09:21,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-01 19:09:21,946 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 16 [2018-12-01 19:09:21,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:09:21,946 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-01 19:09:21,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-01 19:09:21,947 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-01 19:09:21,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 19:09:21,947 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:09:21,947 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:09:21,947 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:09:21,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:09:21,948 INFO L82 PathProgramCache]: Analyzing trace with hash 900277844, now seen corresponding path program 1 times [2018-12-01 19:09:21,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 19:09:21,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 19:09:21,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:09:21,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:09:21,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 19:09:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:09:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 19:09:22,008 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 19:09:22,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 07:09:22 BoogieIcfgContainer [2018-12-01 19:09:22,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 19:09:22,030 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 19:09:22,030 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 19:09:22,030 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 19:09:22,031 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:09:21" (3/4) ... [2018-12-01 19:09:22,033 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 19:09:22,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 19:09:22,033 INFO L168 Benchmark]: Toolchain (without parser) took 736.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -97.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-12-01 19:09:22,034 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 19:09:22,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-12-01 19:09:22,035 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 19:09:22,035 INFO L168 Benchmark]: Boogie Preprocessor took 20.71 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. [2018-12-01 19:09:22,036 INFO L168 Benchmark]: RCFGBuilder took 201.80 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-12-01 19:09:22,036 INFO L168 Benchmark]: TraceAbstraction took 302.66 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-12-01 19:09:22,036 INFO L168 Benchmark]: Witness Printer took 2.83 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. [2018-12-01 19:09:22,038 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 190.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.71 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 201.80 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 302.66 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.83 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] 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)=19, \old(halF_exp)=31, \old(huge_exp)=14, \old(invln2_exp)=15, \old(ln2HI_exp)=9, \old(ln2HI_exp)=23, \old(ln2LO_exp)=30, \old(ln2LO_exp)=25, \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] [L117] float x = -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] [L118] 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] [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __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] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] 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] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] 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] [L118] RET, EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=13, 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] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f 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, res=13, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L122] __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=13, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 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=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 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 [2018-12-01 19:09:23,375 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 19:09:23,376 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 19:09:23,382 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 19:09:23,382 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 19:09:23,383 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 19:09:23,384 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 19:09:23,384 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 19:09:23,385 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 19:09:23,385 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 19:09:23,386 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 19:09:23,386 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 19:09:23,386 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 19:09:23,387 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 19:09:23,387 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 19:09:23,388 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 19:09:23,388 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 19:09:23,389 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 19:09:23,390 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 19:09:23,391 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 19:09:23,391 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 19:09:23,392 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 19:09:23,393 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 19:09:23,393 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 19:09:23,393 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 19:09:23,393 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 19:09:23,394 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 19:09:23,394 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 19:09:23,395 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 19:09:23,395 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 19:09:23,395 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 19:09:23,395 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 19:09:23,396 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 19:09:23,396 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 19:09:23,396 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 19:09:23,396 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 19:09:23,397 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-01 19:09:23,404 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 19:09:23,404 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 19:09:23,404 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 19:09:23,404 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 19:09:23,405 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 19:09:23,405 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 19:09:23,405 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 19:09:23,405 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 19:09:23,405 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 19:09:23,405 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 19:09:23,405 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 19:09:23,405 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 19:09:23,406 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 19:09:23,406 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 19:09:23,406 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-01 19:09:23,406 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-01 19:09:23,406 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 19:09:23,406 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 19:09:23,406 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 19:09:23,406 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 19:09:23,406 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 19:09:23,406 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 19:09:23,406 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 19:09:23,406 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 19:09:23,407 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 19:09:23,407 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 19:09:23,407 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 19:09:23,407 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 19:09:23,407 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-01 19:09:23,407 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 19:09:23,407 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-01 19:09:23,407 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-01 19:09:23,407 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_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer 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 -> Automizer 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 -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2018-12-01 19:09:23,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 19:09:23,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 19:09:23,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 19:09:23,434 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 19:09:23,434 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 19:09:23,435 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-12-01 19:09:23,469 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/data/72ae693a7/5782f4f5ea6649b5ac42e2fa6834e416/FLAG70782ad17 [2018-12-01 19:09:23,904 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 19:09:23,904 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-12-01 19:09:23,908 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/data/72ae693a7/5782f4f5ea6649b5ac42e2fa6834e416/FLAG70782ad17 [2018-12-01 19:09:23,916 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/data/72ae693a7/5782f4f5ea6649b5ac42e2fa6834e416 [2018-12-01 19:09:23,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 19:09:23,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 19:09:23,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 19:09:23,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 19:09:23,921 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 19:09:23,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:09:23" (1/1) ... [2018-12-01 19:09:23,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96fb700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:23, skipping insertion in model container [2018-12-01 19:09:23,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:09:23" (1/1) ... [2018-12-01 19:09:23,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 19:09:23,939 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 19:09:24,047 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 19:09:24,052 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 19:09:24,077 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 19:09:24,092 INFO L195 MainTranslator]: Completed translation [2018-12-01 19:09:24,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:24 WrapperNode [2018-12-01 19:09:24,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 19:09:24,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 19:09:24,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 19:09:24,094 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 19:09:24,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:24" (1/1) ... [2018-12-01 19:09:24,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:24" (1/1) ... [2018-12-01 19:09:24,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 19:09:24,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 19:09:24,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 19:09:24,111 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 19:09:24,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:24" (1/1) ... [2018-12-01 19:09:24,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:24" (1/1) ... [2018-12-01 19:09:24,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:24" (1/1) ... [2018-12-01 19:09:24,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:24" (1/1) ... [2018-12-01 19:09:24,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:24" (1/1) ... [2018-12-01 19:09:24,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:24" (1/1) ... [2018-12-01 19:09:24,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:24" (1/1) ... [2018-12-01 19:09:24,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 19:09:24,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 19:09:24,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 19:09:24,169 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 19:09:24,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/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 [2018-12-01 19:09:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-12-01 19:09:24,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-12-01 19:09:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-01 19:09:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 19:09:24,199 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 19:09:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-01 19:09:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 19:09:24,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 19:09:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 19:09:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-01 19:09:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 19:09:24,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 19:09:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-01 19:09:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-01 19:09:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 19:09:24,295 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 19:09:31,971 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 19:09:31,991 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 19:09:32,063 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 19:09:32,075 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 19:09:32,075 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-01 19:09:32,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:09:32 BoogieIcfgContainer [2018-12-01 19:09:32,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 19:09:32,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 19:09:32,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 19:09:32,078 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 19:09:32,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 07:09:23" (1/3) ... [2018-12-01 19:09:32,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca9aa9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 07:09:32, skipping insertion in model container [2018-12-01 19:09:32,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:09:24" (2/3) ... [2018-12-01 19:09:32,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca9aa9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 07:09:32, skipping insertion in model container [2018-12-01 19:09:32,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:09:32" (3/3) ... [2018-12-01 19:09:32,080 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b_true-unreach-call.c [2018-12-01 19:09:32,085 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 19:09:32,089 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-01 19:09:32,098 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-01 19:09:32,114 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 19:09:32,114 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 19:09:32,114 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 19:09:32,114 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 19:09:32,114 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 19:09:32,114 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 19:09:32,114 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 19:09:32,115 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 19:09:32,115 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 19:09:32,124 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-12-01 19:09:32,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-01 19:09:32,127 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:09:32,128 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:09:32,129 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:09:32,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:09:32,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1027521113, now seen corresponding path program 1 times [2018-12-01 19:09:32,135 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 19:09:32,135 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/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 [2018-12-01 19:09:32,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:09:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:09:32,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 19:09:32,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:09:32,233 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 19:09:32,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:09:32,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 19:09:32,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-01 19:09:32,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 19:09:32,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 19:09:32,253 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-12-01 19:09:32,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:09:32,266 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2018-12-01 19:09:32,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 19:09:32,266 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-12-01 19:09:32,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:09:32,273 INFO L225 Difference]: With dead ends: 82 [2018-12-01 19:09:32,273 INFO L226 Difference]: Without dead ends: 41 [2018-12-01 19:09:32,275 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 19:09:32,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-01 19:09:32,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-01 19:09:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-01 19:09:32,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-01 19:09:32,296 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 16 [2018-12-01 19:09:32,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:09:32,296 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-01 19:09:32,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-01 19:09:32,297 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-01 19:09:32,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 19:09:32,297 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:09:32,297 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:09:32,297 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:09:32,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:09:32,297 INFO L82 PathProgramCache]: Analyzing trace with hash 900277844, now seen corresponding path program 1 times [2018-12-01 19:09:32,298 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 19:09:32,298 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/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 [2018-12-01 19:09:32,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:09:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:09:32,374 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 19:09:32,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:09:32,465 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 19:09:32,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:09:32,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 19:09:32,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 19:09:32,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 19:09:32,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-01 19:09:32,475 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 7 states. [2018-12-01 19:09:42,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:09:42,189 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-12-01 19:09:42,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 19:09:42,254 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-12-01 19:09:42,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:09:42,256 INFO L225 Difference]: With dead ends: 52 [2018-12-01 19:09:42,256 INFO L226 Difference]: Without dead ends: 46 [2018-12-01 19:09:42,257 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-01 19:09:42,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-01 19:09:42,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2018-12-01 19:09:42,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-01 19:09:42,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-12-01 19:09:42,262 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 17 [2018-12-01 19:09:42,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:09:42,262 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-12-01 19:09:42,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 19:09:42,263 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-12-01 19:09:42,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-01 19:09:42,263 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:09:42,263 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 19:09:42,264 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:09:42,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:09:42,264 INFO L82 PathProgramCache]: Analyzing trace with hash -211300720, now seen corresponding path program 1 times [2018-12-01 19:09:42,264 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 19:09:42,264 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/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 [2018-12-01 19:09:42,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:09:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:09:42,372 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 19:09:42,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:09:42,409 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 19:09:42,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:09:42,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-01 19:09:42,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 19:09:42,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 19:09:42,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-01 19:09:42,418 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 6 states. [2018-12-01 19:09:51,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:09:51,671 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2018-12-01 19:09:51,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 19:09:51,735 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-12-01 19:09:51,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:09:51,736 INFO L225 Difference]: With dead ends: 52 [2018-12-01 19:09:51,736 INFO L226 Difference]: Without dead ends: 46 [2018-12-01 19:09:51,737 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-01 19:09:51,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-01 19:09:51,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2018-12-01 19:09:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-01 19:09:51,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-12-01 19:09:51,740 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 19 [2018-12-01 19:09:51,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:09:51,741 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-12-01 19:09:51,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 19:09:51,741 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-12-01 19:09:51,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-01 19:09:51,741 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:09:51,741 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] [2018-12-01 19:09:51,741 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:09:51,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:09:51,742 INFO L82 PathProgramCache]: Analyzing trace with hash -95067259, now seen corresponding path program 1 times [2018-12-01 19:09:51,742 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 19:09:51,742 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/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 [2018-12-01 19:09:51,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:09:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:09:51,827 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 19:09:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:09:51,882 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 19:09:51,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:09:51,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 19:09:51,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 19:09:51,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 19:09:51,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-01 19:09:51,891 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 7 states. [2018-12-01 19:09:58,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:09:58,989 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2018-12-01 19:09:59,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 19:09:59,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-01 19:09:59,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:09:59,056 INFO L225 Difference]: With dead ends: 52 [2018-12-01 19:09:59,056 INFO L226 Difference]: Without dead ends: 44 [2018-12-01 19:09:59,056 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-01 19:09:59,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-01 19:09:59,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2018-12-01 19:09:59,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-01 19:09:59,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2018-12-01 19:09:59,060 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 20 [2018-12-01 19:09:59,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:09:59,060 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2018-12-01 19:09:59,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 19:09:59,061 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2018-12-01 19:09:59,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-01 19:09:59,061 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:09:59,061 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] [2018-12-01 19:09:59,062 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:09:59,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:09:59,062 INFO L82 PathProgramCache]: Analyzing trace with hash 589145278, now seen corresponding path program 1 times [2018-12-01 19:09:59,062 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 19:09:59,062 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/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 [2018-12-01 19:09:59,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:09:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:09:59,159 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 19:09:59,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:09:59,217 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 19:09:59,225 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:09:59,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 19:09:59,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 19:09:59,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 19:09:59,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-01 19:09:59,226 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 7 states. [2018-12-01 19:10:08,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:10:08,452 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2018-12-01 19:10:08,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 19:10:08,454 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-01 19:10:08,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:10:08,454 INFO L225 Difference]: With dead ends: 50 [2018-12-01 19:10:08,454 INFO L226 Difference]: Without dead ends: 44 [2018-12-01 19:10:08,455 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-01 19:10:08,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-01 19:10:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2018-12-01 19:10:08,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-01 19:10:08,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-12-01 19:10:08,459 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 20 [2018-12-01 19:10:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:10:08,459 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-12-01 19:10:08,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 19:10:08,459 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-12-01 19:10:08,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 19:10:08,460 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:10:08,460 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] [2018-12-01 19:10:08,460 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:10:08,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:10:08,460 INFO L82 PathProgramCache]: Analyzing trace with hash 901419296, now seen corresponding path program 1 times [2018-12-01 19:10:08,460 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 19:10:08,460 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/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 [2018-12-01 19:10:08,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:10:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:10:08,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 19:10:09,201 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-12-01 19:10:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:10:09,313 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 19:10:09,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:10:09,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-01 19:10:09,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-01 19:10:09,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 19:10:09,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-01 19:10:09,322 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 8 states. [2018-12-01 19:10:12,519 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-12-01 19:10:20,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:10:20,474 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2018-12-01 19:10:20,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 19:10:20,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-12-01 19:10:20,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:10:20,476 INFO L225 Difference]: With dead ends: 48 [2018-12-01 19:10:20,476 INFO L226 Difference]: Without dead ends: 42 [2018-12-01 19:10:20,476 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-12-01 19:10:20,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-01 19:10:20,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2018-12-01 19:10:20,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-01 19:10:20,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-12-01 19:10:20,480 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 23 [2018-12-01 19:10:20,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:10:20,480 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-12-01 19:10:20,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-01 19:10:20,480 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-12-01 19:10:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 19:10:20,481 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:10:20,481 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] [2018-12-01 19:10:20,481 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:10:20,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:10:20,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1676277967, now seen corresponding path program 1 times [2018-12-01 19:10:20,482 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 19:10:20,482 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/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 [2018-12-01 19:10:20,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:10:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:10:21,190 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 19:10:21,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:10:21,256 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 19:10:21,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:10:21,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 19:10:21,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 19:10:21,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 19:10:21,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-01 19:10:21,270 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 7 states. [2018-12-01 19:10:32,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:10:32,078 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-12-01 19:10:32,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-01 19:10:32,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-01 19:10:32,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:10:32,145 INFO L225 Difference]: With dead ends: 61 [2018-12-01 19:10:32,145 INFO L226 Difference]: Without dead ends: 40 [2018-12-01 19:10:32,146 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-01 19:10:32,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-01 19:10:32,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-12-01 19:10:32,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-01 19:10:32,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2018-12-01 19:10:32,149 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 24 [2018-12-01 19:10:32,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:10:32,149 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2018-12-01 19:10:32,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 19:10:32,149 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-12-01 19:10:32,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-01 19:10:32,150 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:10:32,150 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] [2018-12-01 19:10:32,150 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:10:32,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:10:32,151 INFO L82 PathProgramCache]: Analyzing trace with hash -779018628, now seen corresponding path program 1 times [2018-12-01 19:10:32,151 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 19:10:32,151 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/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 [2018-12-01 19:10:32,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:10:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:10:32,887 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 19:10:33,648 WARN L180 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-01 19:10:33,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:10:33,652 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 19:10:33,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:10:33,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-01 19:10:33,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 19:10:33,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 19:10:33,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-01 19:10:33,667 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2018-12-01 19:10:36,683 WARN L180 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-01 19:10:43,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:10:43,275 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2018-12-01 19:10:43,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 19:10:43,277 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-01 19:10:43,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:10:43,277 INFO L225 Difference]: With dead ends: 47 [2018-12-01 19:10:43,277 INFO L226 Difference]: Without dead ends: 41 [2018-12-01 19:10:43,277 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-01 19:10:43,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-01 19:10:43,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-01 19:10:43,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-01 19:10:43,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-12-01 19:10:43,280 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 25 [2018-12-01 19:10:43,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:10:43,281 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-12-01 19:10:43,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 19:10:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-12-01 19:10:43,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-01 19:10:43,281 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:10:43,281 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] [2018-12-01 19:10:43,281 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:10:43,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:10:43,281 INFO L82 PathProgramCache]: Analyzing trace with hash -2043508857, now seen corresponding path program 1 times [2018-12-01 19:10:43,282 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 19:10:43,282 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-12-01 19:10:43,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:10:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:10:44,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 19:10:44,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:10:44,287 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 19:10:44,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:10:44,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 19:10:44,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 19:10:44,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 19:10:44,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-01 19:10:44,304 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 7 states. [2018-12-01 19:10:56,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:10:56,272 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2018-12-01 19:10:56,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 19:10:56,340 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-12-01 19:10:56,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:10:56,340 INFO L225 Difference]: With dead ends: 58 [2018-12-01 19:10:56,341 INFO L226 Difference]: Without dead ends: 37 [2018-12-01 19:10:56,341 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-01 19:10:56,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-01 19:10:56,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-01 19:10:56,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-01 19:10:56,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-12-01 19:10:56,343 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 25 [2018-12-01 19:10:56,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:10:56,344 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-12-01 19:10:56,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 19:10:56,344 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-12-01 19:10:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-01 19:10:56,344 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 19:10:56,344 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, 1, 1] [2018-12-01 19:10:56,344 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 19:10:56,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:10:56,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1556919915, now seen corresponding path program 1 times [2018-12-01 19:10:56,345 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 19:10:56,345 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-12-01 19:10:56,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 19:10:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:10:57,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 19:10:58,155 WARN L180 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-01 19:10:58,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:10:58,160 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 19:10:58,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 19:10:58,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-01 19:10:58,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 19:10:58,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 19:10:58,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-01 19:10:58,174 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 6 states. [2018-12-01 19:10:58,938 WARN L180 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-01 19:11:02,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 19:11:02,721 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-01 19:11:02,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 19:11:02,797 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-12-01 19:11:02,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 19:11:02,797 INFO L225 Difference]: With dead ends: 37 [2018-12-01 19:11:02,797 INFO L226 Difference]: Without dead ends: 0 [2018-12-01 19:11:02,798 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-01 19:11:02,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-01 19:11:02,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-01 19:11:02,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-01 19:11:02,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 19:11:02,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-12-01 19:11:02,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 19:11:02,799 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 19:11:02,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 19:11:02,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-01 19:11:02,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 19:11:02,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-01 19:11:03,188 WARN L180 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-12-01 19:11:03,441 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 36 109) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L451 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 36 109) the Hoare annotation is: true [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 36 109) no Hoare annotation was computed. [2018-12-01 19:11:03,443 INFO L448 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L444 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (bvult (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv830472192 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|)))) [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L444 ceAbstractionStarter]: At program point L41-2(lines 41 45) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (= |__ieee754_expf_#in~x| __ieee754_expf_~x)) [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L444 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (bvult (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv830472192 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|)))) [2018-12-01 19:11:03,444 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-01 19:11:03,444 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-01 19:11:03,445 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-01 19:11:03,445 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-01 19:11:03,445 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) ~one_exp~0) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) [2018-12-01 19:11:03,445 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-01 19:11:03,445 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-01 19:11:03,445 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2018-12-01 19:11:03,445 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 111 127) the Hoare annotation is: true [2018-12-01 19:11:03,445 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 111 127) no Hoare annotation was computed. [2018-12-01 19:11:03,445 INFO L448 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2018-12-01 19:11:03,445 INFO L448 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2018-12-01 19:11:03,445 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 111 127) no Hoare annotation was computed. [2018-12-01 19:11:03,445 INFO L444 ceAbstractionStarter]: At program point L118(line 118) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (= main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-12-01 19:11:03,445 INFO L448 ceAbstractionStarter]: For program point L118-1(line 118) no Hoare annotation was computed. [2018-12-01 19:11:03,450 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,450 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,450 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,451 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,453 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,454 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,454 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,454 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,454 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,454 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,454 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,454 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,455 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,455 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,455 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,455 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,455 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,455 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,455 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,455 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,456 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,456 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,456 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,456 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,456 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,456 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,456 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,456 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,456 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,456 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,457 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,457 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,457 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,457 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,457 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,457 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 07:11:03 BoogieIcfgContainer [2018-12-01 19:11:03,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 19:11:03,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 19:11:03,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 19:11:03,459 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 19:11:03,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:09:32" (3/4) ... [2018-12-01 19:11:03,461 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 19:11:03,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-12-01 19:11:03,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-01 19:11:03,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-01 19:11:03,468 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2018-12-01 19:11:03,468 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-01 19:11:03,468 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-01 19:11:03,468 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 19:11:03,468 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 19:11:03,484 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || \old(x) == x [2018-12-01 19:11:03,485 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-12-01 19:11:03,485 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-12-01 19:11:03,498 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f23778f7-17d8-4814-b3c4-dceea677cda6/bin-2019/uautomizer/witness.graphml [2018-12-01 19:11:03,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 19:11:03,499 INFO L168 Benchmark]: Toolchain (without parser) took 99580.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.3 MB). Peak memory consumption was 46.9 MB. Max. memory is 11.5 GB. [2018-12-01 19:11:03,500 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-12-01 19:11:03,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.89 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. [2018-12-01 19:11:03,500 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.08 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 19:11:03,500 INFO L168 Benchmark]: Boogie Preprocessor took 57.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -211.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-12-01 19:11:03,500 INFO L168 Benchmark]: RCFGBuilder took 7907.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2018-12-01 19:11:03,501 INFO L168 Benchmark]: TraceAbstraction took 91382.13 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -13.2 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. [2018-12-01 19:11:03,501 INFO L168 Benchmark]: Witness Printer took 40.25 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-01 19:11:03,502 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 173.89 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 17.08 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -211.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 7907.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 91382.13 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -13.2 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. * Witness Printer took 40.25 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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: 122]: 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: 97]: Loop Invariant [2018-12-01 19:11:03,505 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,505 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,505 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,505 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,505 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,505 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,505 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,506 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,506 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,506 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,506 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,506 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,506 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,506 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,506 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,506 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 41]: Loop Invariant [2018-12-01 19:11:03,507 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,507 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,507 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,507 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,507 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,507 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,507 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,507 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || \old(x) == x - InvariantResult [Line: 84]: Loop Invariant [2018-12-01 19:11:03,507 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,507 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,508 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,508 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,508 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,508 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,508 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,508 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,508 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,508 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,508 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,508 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-01 19:11:03,508 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,508 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,509 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-01 19:11:03,509 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~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 4 procedures, 45 locations, 1 error locations. SAFE Result, 91.3s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 83.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 352 SDtfs, 388 SDslu, 1040 SDs, 0 SdLazy, 396 SolverSat, 3 SolverUnsat, 29 SolverUnknown, 0 SolverNotchecked, 79.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 236 GetRequests, 164 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 24 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 16 NumberOfFragments, 128 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 168 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 210 ConstructedInterpolants, 38 QuantifiedInterpolants, 46147 SizeOfPredicates, 35 NumberOfNonLiveVariables, 1194 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...