./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/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 4dddb731074a9a249891d6adbc7c778d25efe28d ................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/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 4dddb731074a9a249891d6adbc7c778d25efe28d .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:42:35,034 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:42:35,035 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:42:35,042 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:42:35,042 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:42:35,043 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:42:35,044 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:42:35,045 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:42:35,046 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:42:35,046 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:42:35,047 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:42:35,047 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:42:35,048 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:42:35,048 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:42:35,049 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:42:35,050 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:42:35,050 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:42:35,051 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:42:35,053 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:42:35,054 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:42:35,054 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:42:35,055 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:42:35,057 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:42:35,057 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:42:35,057 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:42:35,057 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:42:35,058 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:42:35,059 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:42:35,060 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:42:35,060 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:42:35,060 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:42:35,061 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:42:35,061 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:42:35,061 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:42:35,062 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:42:35,062 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:42:35,062 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 11:42:35,072 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:42:35,072 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:42:35,073 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:42:35,073 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 11:42:35,073 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:42:35,074 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:42:35,074 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:42:35,074 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:42:35,074 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:42:35,074 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:42:35,074 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:42:35,074 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:42:35,075 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:42:35,075 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:42:35,075 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:42:35,075 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:42:35,075 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:42:35,075 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:42:35,076 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:42:35,076 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:42:35,076 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:42:35,076 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:42:35,076 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:42:35,076 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:42:35,076 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:42:35,077 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:42:35,077 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:42:35,077 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:42:35,077 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:42:35,077 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:42:35,077 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_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/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 -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-11-18 11:42:35,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:42:35,106 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:42:35,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:42:35,108 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:42:35,108 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:42:35,109 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-11-18 11:42:35,150 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/data/b1de7f48e/62b3bb14a0c34bb3947f4b291562b042/FLAG142c4afd5 [2018-11-18 11:42:35,453 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:42:35,453 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-11-18 11:42:35,458 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/data/b1de7f48e/62b3bb14a0c34bb3947f4b291562b042/FLAG142c4afd5 [2018-11-18 11:42:35,469 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/data/b1de7f48e/62b3bb14a0c34bb3947f4b291562b042 [2018-11-18 11:42:35,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:42:35,472 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 11:42:35,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:42:35,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:42:35,474 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:42:35,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:42:35" (1/1) ... [2018-11-18 11:42:35,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383ef775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:35, skipping insertion in model container [2018-11-18 11:42:35,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:42:35" (1/1) ... [2018-11-18 11:42:35,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:42:35,501 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:42:35,645 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:42:35,648 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:42:35,685 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:42:35,699 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:42:35,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:35 WrapperNode [2018-11-18 11:42:35,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:42:35,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:42:35,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:42:35,700 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:42:35,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:35" (1/1) ... [2018-11-18 11:42:35,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:35" (1/1) ... [2018-11-18 11:42:35,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:35" (1/1) ... [2018-11-18 11:42:35,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:35" (1/1) ... [2018-11-18 11:42:35,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:35" (1/1) ... [2018-11-18 11:42:35,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:35" (1/1) ... [2018-11-18 11:42:35,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:35" (1/1) ... [2018-11-18 11:42:35,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:42:35,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:42:35,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:42:35,780 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:42:35,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/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 [2018-11-18 11:42:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:42:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:42:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-18 11:42:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 11:42:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 11:42:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 11:42:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-18 11:42:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:42:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 11:42:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 11:42:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-18 11:42:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:42:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 11:42:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 11:42:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:42:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:42:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 11:42:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 11:42:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 11:42:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 11:42:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-18 11:42:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:42:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:42:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:42:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 11:42:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 11:42:36,197 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:42:36,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:42:36 BoogieIcfgContainer [2018-11-18 11:42:36,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:42:36,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:42:36,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:42:36,201 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:42:36,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:42:35" (1/3) ... [2018-11-18 11:42:36,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec8de59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:42:36, skipping insertion in model container [2018-11-18 11:42:36,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:35" (2/3) ... [2018-11-18 11:42:36,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec8de59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:42:36, skipping insertion in model container [2018-11-18 11:42:36,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:42:36" (3/3) ... [2018-11-18 11:42:36,204 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-11-18 11:42:36,212 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:42:36,218 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:42:36,232 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:42:36,257 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:42:36,258 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:42:36,258 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:42:36,258 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:42:36,258 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:42:36,258 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:42:36,258 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:42:36,259 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:42:36,259 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:42:36,275 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2018-11-18 11:42:36,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 11:42:36,280 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:42:36,281 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:42:36,283 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:42:36,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:42:36,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1105446803, now seen corresponding path program 1 times [2018-11-18 11:42:36,289 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:42:36,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:42:36,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:42:36,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:42:36,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:42:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:42:36,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:42:36,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:42:36,410 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:42:36,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:42:36,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:42:36,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:42:36,426 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2018-11-18 11:42:36,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:42:36,449 INFO L93 Difference]: Finished difference Result 148 states and 218 transitions. [2018-11-18 11:42:36,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:42:36,450 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 11:42:36,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:42:36,458 INFO L225 Difference]: With dead ends: 148 [2018-11-18 11:42:36,459 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 11:42:36,461 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:42:36,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 11:42:36,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-11-18 11:42:36,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 11:42:36,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2018-11-18 11:42:36,489 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 21 [2018-11-18 11:42:36,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:42:36,489 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2018-11-18 11:42:36,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:42:36,489 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2018-11-18 11:42:36,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 11:42:36,490 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:42:36,490 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:42:36,490 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:42:36,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:42:36,491 INFO L82 PathProgramCache]: Analyzing trace with hash -89947557, now seen corresponding path program 1 times [2018-11-18 11:42:36,491 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:42:36,491 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:42:36,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:42:36,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:42:36,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:42:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:42:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:42:36,555 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 11:42:36,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:42:36 BoogieIcfgContainer [2018-11-18 11:42:36,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:42:36,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:42:36,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:42:36,581 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:42:36,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:42:36" (3/4) ... [2018-11-18 11:42:36,584 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 11:42:36,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:42:36,584 INFO L168 Benchmark]: Toolchain (without parser) took 1113.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -93.9 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:42:36,585 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:42:36,585 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.77 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 940.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:42:36,586 INFO L168 Benchmark]: Boogie Preprocessor took 79.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:42:36,586 INFO L168 Benchmark]: RCFGBuilder took 417.94 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:42:36,586 INFO L168 Benchmark]: TraceAbstraction took 382.31 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:42:36,587 INFO L168 Benchmark]: Witness Printer took 2.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:42:36,588 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 227.77 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 940.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 417.94 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 382.31 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 233]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of bitwiseAnd at line 161, overapproximation of someUnaryFLOAToperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 164. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L60] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L143-L151] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=27, \old(huge_floor)=11, \old(one_asin)=14, \old(one_sqrt)=12, \old(pio2_hi_asin)=13, \old(pio2_lo_asin)=22, \old(pio4_hi_asin)=15, \old(pS0_asin)=21, \old(pS1_asin)=16, \old(pS2_asin)=7, \old(pS3_asin)=20, \old(pS4_asin)=25, \old(pS5_asin)=18, \old(qS1_asin)=28, \old(qS2_asin)=26, \old(qS3_asin)=5, \old(qS4_asin)=23, \old(tiny_sqrt)=24, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L228] float x = -1.0f / 0.0f; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L229] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=17, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L154] float t, w, p, q, c, r, s; [L155] __int32_t hx, ix; VAL [\old(x)=17, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=17] [L157] FCALL ieee_float_shape_type gf_u; [L158] FCALL gf_u.value = (x) [L159] EXPR, FCALL gf_u.word [L159] (hx) = gf_u.word [L160] COND FALSE !(0) VAL [\old(x)=17, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=3, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=17] [L161] ix = hx & 0x7fffffff VAL [\old(x)=17, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=3, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=17] [L162] COND TRUE ix == 0x3f800000 [L164] RET return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=17, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=3, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=17] [L229] EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=10, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=17] [L229] float res = __ieee754_asinf(x); [L232] CALL, EXPR isnan_float(res) VAL [\old(x)=10, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L58] RET return x != x; VAL [\old(x)=10, \result=0, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=10] [L232] EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=10, tiny_sqrt=1/1000000000000000000000000000000, x=17] [L232] COND TRUE !isnan_float(res) [L233] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=10, tiny_sqrt=1/1000000000000000000000000000000, x=17] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 97 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 95 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 11:42:37,970 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:42:37,972 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:42:37,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:42:37,981 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:42:37,981 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:42:37,982 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:42:37,983 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:42:37,984 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:42:37,985 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:42:37,986 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:42:37,986 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:42:37,987 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:42:37,988 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:42:37,989 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:42:37,989 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:42:37,990 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:42:37,991 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:42:37,992 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:42:37,993 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:42:37,994 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:42:37,996 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:42:37,997 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:42:37,998 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:42:37,998 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:42:37,998 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:42:38,000 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:42:38,000 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:42:38,001 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:42:38,001 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:42:38,002 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:42:38,002 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:42:38,002 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:42:38,002 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:42:38,004 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:42:38,004 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:42:38,005 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 11:42:38,015 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:42:38,015 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:42:38,016 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:42:38,016 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 11:42:38,017 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:42:38,017 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:42:38,017 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:42:38,017 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:42:38,017 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:42:38,017 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:42:38,018 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:42:38,018 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:42:38,018 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:42:38,018 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:42:38,018 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 11:42:38,018 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 11:42:38,018 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:42:38,019 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:42:38,020 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:42:38,020 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:42:38,020 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:42:38,021 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:42:38,021 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:42:38,021 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:42:38,021 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:42:38,021 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:42:38,021 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:42:38,021 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:42:38,022 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 11:42:38,022 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:42:38,022 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 11:42:38,022 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 11:42:38,022 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_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/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 -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-11-18 11:42:38,051 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:42:38,060 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:42:38,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:42:38,064 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:42:38,064 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:42:38,064 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-11-18 11:42:38,108 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/data/3c940c034/2cde121895af48ccbd4eb598e0408355/FLAG462d636b8 [2018-11-18 11:42:38,445 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:42:38,445 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-11-18 11:42:38,450 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/data/3c940c034/2cde121895af48ccbd4eb598e0408355/FLAG462d636b8 [2018-11-18 11:42:38,863 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/data/3c940c034/2cde121895af48ccbd4eb598e0408355 [2018-11-18 11:42:38,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:42:38,866 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 11:42:38,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:42:38,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:42:38,870 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:42:38,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:42:38" (1/1) ... [2018-11-18 11:42:38,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d53261f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:38, skipping insertion in model container [2018-11-18 11:42:38,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:42:38" (1/1) ... [2018-11-18 11:42:38,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:42:38,897 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:42:39,056 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:42:39,061 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:42:39,106 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:42:39,124 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:42:39,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:39 WrapperNode [2018-11-18 11:42:39,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:42:39,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:42:39,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:42:39,125 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:42:39,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:39" (1/1) ... [2018-11-18 11:42:39,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:39" (1/1) ... [2018-11-18 11:42:39,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:39" (1/1) ... [2018-11-18 11:42:39,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:39" (1/1) ... [2018-11-18 11:42:39,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:39" (1/1) ... [2018-11-18 11:42:39,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:39" (1/1) ... [2018-11-18 11:42:39,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:39" (1/1) ... [2018-11-18 11:42:39,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:42:39,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:42:39,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:42:39,237 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:42:39,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/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 [2018-11-18 11:42:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:42:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:42:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-18 11:42:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 11:42:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 11:42:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 11:42:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-18 11:42:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:42:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 11:42:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 11:42:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-18 11:42:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:42:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 11:42:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 11:42:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:42:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 11:42:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 11:42:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 11:42:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 11:42:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 11:42:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-18 11:42:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:42:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:42:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:42:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 11:42:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 11:42:48,711 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:42:49,075 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:42:49,115 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:42:49,540 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:42:49,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:42:49 BoogieIcfgContainer [2018-11-18 11:42:49,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:42:49,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:42:49,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:42:49,542 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:42:49,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:42:38" (1/3) ... [2018-11-18 11:42:49,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4225d939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:42:49, skipping insertion in model container [2018-11-18 11:42:49,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:39" (2/3) ... [2018-11-18 11:42:49,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4225d939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:42:49, skipping insertion in model container [2018-11-18 11:42:49,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:42:49" (3/3) ... [2018-11-18 11:42:49,545 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-11-18 11:42:49,550 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:42:49,554 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:42:49,563 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:42:49,581 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:42:49,581 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:42:49,582 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:42:49,582 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:42:49,582 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:42:49,582 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:42:49,582 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:42:49,582 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:42:49,582 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:42:49,592 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-11-18 11:42:49,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 11:42:49,596 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:42:49,596 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:42:49,598 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:42:49,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:42:49,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1437938587, now seen corresponding path program 1 times [2018-11-18 11:42:49,603 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:42:49,604 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/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 [2018-11-18 11:42:49,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:42:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:42:49,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:42:49,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:42:49,817 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:42:49,827 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:42:49,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:42:49,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:42:49,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:42:49,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:42:49,840 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2018-11-18 11:42:49,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:42:49,864 INFO L93 Difference]: Finished difference Result 146 states and 216 transitions. [2018-11-18 11:42:49,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:42:49,865 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-18 11:42:49,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:42:49,872 INFO L225 Difference]: With dead ends: 146 [2018-11-18 11:42:49,872 INFO L226 Difference]: Without dead ends: 73 [2018-11-18 11:42:49,875 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:42:49,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-18 11:42:49,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-11-18 11:42:49,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 11:42:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2018-11-18 11:42:49,907 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 20 [2018-11-18 11:42:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:42:49,907 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2018-11-18 11:42:49,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:42:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-11-18 11:42:49,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 11:42:49,908 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:42:49,908 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:42:49,908 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:42:49,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:42:49,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1180922378, now seen corresponding path program 1 times [2018-11-18 11:42:49,909 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:42:49,909 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/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 [2018-11-18 11:42:49,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:42:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:42:50,088 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:42:50,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:42:50,185 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:42:50,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:42:50,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 11:42:50,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:42:50,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:42:50,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:42:50,196 INFO L87 Difference]: Start difference. First operand 73 states and 90 transitions. Second operand 7 states. [2018-11-18 11:42:56,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:42:56,452 INFO L93 Difference]: Finished difference Result 86 states and 103 transitions. [2018-11-18 11:42:56,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:42:56,453 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-18 11:42:56,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:42:56,455 INFO L225 Difference]: With dead ends: 86 [2018-11-18 11:42:56,456 INFO L226 Difference]: Without dead ends: 76 [2018-11-18 11:42:56,456 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:42:56,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-18 11:42:56,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2018-11-18 11:42:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 11:42:56,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2018-11-18 11:42:56,465 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 89 transitions. Word has length 21 [2018-11-18 11:42:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:42:56,466 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 89 transitions. [2018-11-18 11:42:56,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:42:56,466 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2018-11-18 11:42:56,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 11:42:56,466 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:42:56,467 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:42:56,467 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:42:56,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:42:56,467 INFO L82 PathProgramCache]: Analyzing trace with hash 846701885, now seen corresponding path program 1 times [2018-11-18 11:42:56,468 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:42:56,468 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/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 [2018-11-18 11:42:56,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:42:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:42:56,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:42:58,368 WARN L180 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-18 11:43:00,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:43:00,083 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:43:00,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:43:00,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 11:43:00,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:43:00,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:43:00,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:43:00,098 INFO L87 Difference]: Start difference. First operand 73 states and 89 transitions. Second operand 9 states. [2018-11-18 11:43:03,182 WARN L180 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-18 11:43:09,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:43:09,417 INFO L93 Difference]: Finished difference Result 82 states and 98 transitions. [2018-11-18 11:43:09,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 11:43:09,417 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-18 11:43:09,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:43:09,418 INFO L225 Difference]: With dead ends: 82 [2018-11-18 11:43:09,419 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 11:43:09,419 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:43:09,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 11:43:09,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2018-11-18 11:43:09,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 11:43:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2018-11-18 11:43:09,428 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 22 [2018-11-18 11:43:09,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:43:09,428 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2018-11-18 11:43:09,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:43:09,428 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2018-11-18 11:43:09,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 11:43:09,429 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:43:09,429 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:43:09,429 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:43:09,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:43:09,430 INFO L82 PathProgramCache]: Analyzing trace with hash 656859571, now seen corresponding path program 1 times [2018-11-18 11:43:09,430 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:43:09,430 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/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 [2018-11-18 11:43:09,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:43:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:43:10,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:43:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:43:10,482 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:43:10,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:43:10,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 11:43:10,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:43:10,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:43:10,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:43:10,504 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand 7 states. [2018-11-18 11:43:15,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:43:15,450 INFO L93 Difference]: Finished difference Result 86 states and 101 transitions. [2018-11-18 11:43:15,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 11:43:15,451 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 11:43:15,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:43:15,452 INFO L225 Difference]: With dead ends: 86 [2018-11-18 11:43:15,452 INFO L226 Difference]: Without dead ends: 68 [2018-11-18 11:43:15,453 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:43:15,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-18 11:43:15,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-11-18 11:43:15,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-18 11:43:15,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2018-11-18 11:43:15,459 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 24 [2018-11-18 11:43:15,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:43:15,459 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2018-11-18 11:43:15,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:43:15,460 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2018-11-18 11:43:15,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 11:43:15,460 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:43:15,461 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:43:15,461 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:43:15,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:43:15,461 INFO L82 PathProgramCache]: Analyzing trace with hash 2099777426, now seen corresponding path program 1 times [2018-11-18 11:43:15,461 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:43:15,461 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/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 [2018-11-18 11:43:15,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:43:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:43:16,581 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:43:16,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:43:16,657 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:43:16,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:43:16,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 11:43:16,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:43:16,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:43:16,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:43:16,676 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand 7 states. [2018-11-18 11:43:19,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:43:19,045 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2018-11-18 11:43:19,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 11:43:19,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2018-11-18 11:43:19,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:43:19,047 INFO L225 Difference]: With dead ends: 68 [2018-11-18 11:43:19,047 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:43:19,047 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:43:19,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:43:19,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:43:19,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:43:19,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:43:19,048 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-11-18 11:43:19,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:43:19,048 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:43:19,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:43:19,048 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:43:19,048 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:43:19,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:43:19,226 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-11-18 11:43:19,227 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-11-18 11:43:19,227 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-11-18 11:43:19,227 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:43:19,227 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:43:19,227 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:43:19,227 INFO L425 ceAbstractionStarter]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2018-11-18 11:43:19,227 INFO L428 ceAbstractionStarter]: At program point L130-3(lines 130 134) the Hoare annotation is: true [2018-11-18 11:43:19,227 INFO L425 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 128 141) no Hoare annotation was computed. [2018-11-18 11:43:19,228 INFO L425 ceAbstractionStarter]: For program point L135(lines 135 139) no Hoare annotation was computed. [2018-11-18 11:43:19,228 INFO L425 ceAbstractionStarter]: For program point L135-2(lines 128 141) no Hoare annotation was computed. [2018-11-18 11:43:19,228 INFO L425 ceAbstractionStarter]: For program point L135-3(lines 135 139) no Hoare annotation was computed. [2018-11-18 11:43:19,228 INFO L425 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 128 141) no Hoare annotation was computed. [2018-11-18 11:43:19,228 INFO L428 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 128 141) the Hoare annotation is: true [2018-11-18 11:43:19,228 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-11-18 11:43:19,228 INFO L425 ceAbstractionStarter]: For program point L44(lines 44 47) no Hoare annotation was computed. [2018-11-18 11:43:19,228 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 48) no Hoare annotation was computed. [2018-11-18 11:43:19,228 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 53) no Hoare annotation was computed. [2018-11-18 11:43:19,228 INFO L425 ceAbstractionStarter]: For program point L49-2(lines 14 55) no Hoare annotation was computed. [2018-11-18 11:43:19,228 INFO L425 ceAbstractionStarter]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2018-11-18 11:43:19,228 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point floor_floatEXIT(lines 14 55) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 42) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 21) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point floor_floatFINAL(lines 14 55) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point floor_floatENTRY(lines 14 55) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-11-18 11:43:19,229 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:43:19,230 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 11:43:19,230 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:43:19,230 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:43:19,230 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 221 238) the Hoare annotation is: true [2018-11-18 11:43:19,230 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 221 238) no Hoare annotation was computed. [2018-11-18 11:43:19,230 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2018-11-18 11:43:19,230 INFO L425 ceAbstractionStarter]: For program point L233(line 233) no Hoare annotation was computed. [2018-11-18 11:43:19,230 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 221 238) no Hoare annotation was computed. [2018-11-18 11:43:19,230 INFO L421 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= main_~x~0 .cse1))) [2018-11-18 11:43:19,230 INFO L425 ceAbstractionStarter]: For program point L232-1(lines 232 235) no Hoare annotation was computed. [2018-11-18 11:43:19,231 INFO L421 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-11-18 11:43:19,231 INFO L425 ceAbstractionStarter]: For program point L229-1(line 229) no Hoare annotation was computed. [2018-11-18 11:43:19,231 INFO L421 ceAbstractionStarter]: At program point L192(line 192) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-11-18 11:43:19,231 INFO L425 ceAbstractionStarter]: For program point L192-1(line 192) no Hoare annotation was computed. [2018-11-18 11:43:19,231 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 11:43:19,231 INFO L425 ceAbstractionStarter]: For program point L168(lines 168 181) no Hoare annotation was computed. [2018-11-18 11:43:19,231 INFO L425 ceAbstractionStarter]: For program point L193(lines 193 214) no Hoare annotation was computed. [2018-11-18 11:43:19,231 INFO L425 ceAbstractionStarter]: For program point L193-2(lines 153 219) no Hoare annotation was computed. [2018-11-18 11:43:19,231 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2018-11-18 11:43:19,231 INFO L421 ceAbstractionStarter]: At program point L156-3(lines 156 160) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-11-18 11:43:19,231 INFO L425 ceAbstractionStarter]: For program point L156-4(lines 156 160) no Hoare annotation was computed. [2018-11-18 11:43:19,231 INFO L425 ceAbstractionStarter]: For program point L169(lines 169 170) no Hoare annotation was computed. [2018-11-18 11:43:19,232 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 182) no Hoare annotation was computed. [2018-11-18 11:43:19,232 INFO L428 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 153 219) the Hoare annotation is: true [2018-11-18 11:43:19,232 INFO L425 ceAbstractionStarter]: For program point L199-1(lines 199 203) no Hoare annotation was computed. [2018-11-18 11:43:19,232 INFO L421 ceAbstractionStarter]: At program point L199-3(lines 199 203) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-11-18 11:43:19,232 INFO L425 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 153 219) no Hoare annotation was computed. [2018-11-18 11:43:19,232 INFO L425 ceAbstractionStarter]: For program point L162(lines 162 182) no Hoare annotation was computed. [2018-11-18 11:43:19,232 INFO L425 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 153 219) no Hoare annotation was computed. [2018-11-18 11:43:19,232 INFO L425 ceAbstractionStarter]: For program point L204(lines 204 208) no Hoare annotation was computed. [2018-11-18 11:43:19,232 INFO L425 ceAbstractionStarter]: For program point L204-2(lines 196 214) no Hoare annotation was computed. [2018-11-18 11:43:19,232 INFO L425 ceAbstractionStarter]: For program point L204-3(lines 204 208) no Hoare annotation was computed. [2018-11-18 11:43:19,232 INFO L425 ceAbstractionStarter]: For program point L167(lines 167 182) no Hoare annotation was computed. [2018-11-18 11:43:19,232 INFO L421 ceAbstractionStarter]: At program point L167-1(lines 167 182) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-11-18 11:43:19,233 INFO L425 ceAbstractionStarter]: For program point L77(lines 77 78) no Hoare annotation was computed. [2018-11-18 11:43:19,233 INFO L425 ceAbstractionStarter]: For program point L98-1(lines 98 107) no Hoare annotation was computed. [2018-11-18 11:43:19,233 INFO L428 ceAbstractionStarter]: At program point L98-3(lines 98 107) the Hoare annotation is: true [2018-11-18 11:43:19,233 INFO L425 ceAbstractionStarter]: For program point L98-4(lines 62 127) no Hoare annotation was computed. [2018-11-18 11:43:19,233 INFO L425 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2018-11-18 11:43:19,233 INFO L425 ceAbstractionStarter]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2018-11-18 11:43:19,233 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 62 127) the Hoare annotation is: true [2018-11-18 11:43:19,233 INFO L425 ceAbstractionStarter]: For program point L111(lines 111 117) no Hoare annotation was computed. [2018-11-18 11:43:19,233 INFO L425 ceAbstractionStarter]: For program point L74(lines 74 75) no Hoare annotation was computed. [2018-11-18 11:43:19,233 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 62 127) no Hoare annotation was computed. [2018-11-18 11:43:19,233 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 62 127) no Hoare annotation was computed. [2018-11-18 11:43:19,233 INFO L425 ceAbstractionStarter]: For program point L83(lines 83 87) no Hoare annotation was computed. [2018-11-18 11:43:19,233 INFO L425 ceAbstractionStarter]: For program point L83-2(lines 83 87) no Hoare annotation was computed. [2018-11-18 11:43:19,234 INFO L425 ceAbstractionStarter]: For program point L79(lines 79 80) no Hoare annotation was computed. [2018-11-18 11:43:19,234 INFO L425 ceAbstractionStarter]: For program point L100(lines 100 104) no Hoare annotation was computed. [2018-11-18 11:43:19,234 INFO L425 ceAbstractionStarter]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2018-11-18 11:43:19,234 INFO L425 ceAbstractionStarter]: For program point L100-2(lines 100 104) no Hoare annotation was computed. [2018-11-18 11:43:19,234 INFO L428 ceAbstractionStarter]: At program point L67-3(lines 67 71) the Hoare annotation is: true [2018-11-18 11:43:19,234 INFO L425 ceAbstractionStarter]: For program point L67-4(lines 67 71) no Hoare annotation was computed. [2018-11-18 11:43:19,234 INFO L425 ceAbstractionStarter]: For program point L121-1(lines 121 125) no Hoare annotation was computed. [2018-11-18 11:43:19,234 INFO L428 ceAbstractionStarter]: At program point L121-3(lines 121 125) the Hoare annotation is: true [2018-11-18 11:43:19,234 INFO L425 ceAbstractionStarter]: For program point L121-4(lines 121 125) no Hoare annotation was computed. [2018-11-18 11:43:19,234 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 84 85) no Hoare annotation was computed. [2018-11-18 11:43:19,234 INFO L425 ceAbstractionStarter]: For program point L84-3(lines 84 85) no Hoare annotation was computed. [2018-11-18 11:43:19,234 INFO L425 ceAbstractionStarter]: For program point L113(lines 113 116) no Hoare annotation was computed. [2018-11-18 11:43:19,234 INFO L428 ceAbstractionStarter]: At program point L84-4(lines 84 85) the Hoare annotation is: true [2018-11-18 11:43:19,234 INFO L425 ceAbstractionStarter]: For program point L84-5(lines 84 85) no Hoare annotation was computed. [2018-11-18 11:43:19,235 INFO L425 ceAbstractionStarter]: For program point L109(lines 109 118) no Hoare annotation was computed. [2018-11-18 11:43:19,240 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,240 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,240 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,240 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,241 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,241 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,241 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,241 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,244 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,244 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,244 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,244 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,245 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,245 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,245 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,245 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:43:19 BoogieIcfgContainer [2018-11-18 11:43:19,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:43:19,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:43:19,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:43:19,247 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:43:19,247 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:42:49" (3/4) ... [2018-11-18 11:43:19,249 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:43:19,253 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 11:43:19,253 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 11:43:19,253 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-18 11:43:19,253 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-11-18 11:43:19,254 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 11:43:19,254 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-11-18 11:43:19,254 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-18 11:43:19,257 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2018-11-18 11:43:19,257 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-18 11:43:19,258 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 11:43:19,258 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 11:43:19,274 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 11:43:19,275 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) [2018-11-18 11:43:19,303 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b6a6979d-4786-41c6-ae61-4c25b6e9aaf5/bin-2019/uautomizer/witness.graphml [2018-11-18 11:43:19,303 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:43:19,303 INFO L168 Benchmark]: Toolchain (without parser) took 40438.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 949.2 MB in the beginning and 881.9 MB in the end (delta: 67.3 MB). Peak memory consumption was 226.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:43:19,304 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:43:19,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.09 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 927.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:43:19,304 INFO L168 Benchmark]: Boogie Preprocessor took 112.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -219.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:43:19,304 INFO L168 Benchmark]: RCFGBuilder took 10303.18 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:43:19,305 INFO L168 Benchmark]: TraceAbstraction took 29705.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.4 MB in the end (delta: 208.0 MB). Peak memory consumption was 208.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:43:19,305 INFO L168 Benchmark]: Witness Printer took 56.06 ms. Allocated memory is still 1.2 GB. Free memory was 888.4 MB in the beginning and 881.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:43:19,306 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 258.09 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 927.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 112.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -219.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10303.18 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 29705.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.4 MB in the end (delta: 208.0 MB). Peak memory consumption was 208.0 MB. Max. memory is 11.5 GB. * Witness Printer took 56.06 ms. Allocated memory is still 1.2 GB. Free memory was 888.4 MB in the beginning and 881.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 233]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant [2018-11-18 11:43:19,310 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,310 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,310 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,310 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,310 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,310 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,310 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,310 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,311 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,311 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,311 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,311 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,311 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,311 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,312 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 11:43:19,312 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 96 locations, 1 error locations. SAFE Result, 29.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 22.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 390 SDtfs, 198 SDslu, 1473 SDs, 0 SdLazy, 186 SolverSat, 23 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 18.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 30 PreInvPairs, 40 NumberOfFragments, 209 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 20 QuantifiedInterpolants, 19548 SizeOfPredicates, 16 NumberOfNonLiveVariables, 594 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...