./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0281_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_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/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 ea7f366bf9317f351e4b5f275a15188ee4a0efbb ....................................................................................................................................................................................................................................................................................................................... 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_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/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 ea7f366bf9317f351e4b5f275a15188ee4a0efbb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:25:14,028 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:25:14,029 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:25:14,037 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:25:14,037 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:25:14,038 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:25:14,039 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:25:14,040 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:25:14,041 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:25:14,041 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:25:14,042 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:25:14,042 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:25:14,043 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:25:14,044 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:25:14,044 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:25:14,045 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:25:14,046 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:25:14,047 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:25:14,048 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:25:14,049 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:25:14,050 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:25:14,051 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:25:14,053 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:25:14,053 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:25:14,053 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:25:14,054 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:25:14,054 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:25:14,055 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:25:14,055 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:25:14,056 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:25:14,056 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:25:14,057 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:25:14,057 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:25:14,057 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:25:14,058 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:25:14,058 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:25:14,059 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 10:25:14,070 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:25:14,070 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:25:14,070 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:25:14,071 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 10:25:14,071 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:25:14,071 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:25:14,071 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:25:14,072 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:25:14,072 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:25:14,072 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:25:14,072 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:25:14,072 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:25:14,072 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:25:14,072 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:25:14,073 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:25:14,073 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:25:14,073 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:25:14,073 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:25:14,073 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:25:14,073 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:25:14,074 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:25:14,074 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:25:14,074 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:25:14,074 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:25:14,074 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:25:14,074 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:25:14,075 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:25:14,075 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:25:14,075 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:25:14,075 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:25:14,075 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_8a12caef-35b8-4ad4-a620-a3ac70c65a50/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 -> ea7f366bf9317f351e4b5f275a15188ee4a0efbb [2018-11-18 10:25:14,100 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:25:14,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:25:14,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:25:14,113 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:25:14,113 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:25:14,114 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c [2018-11-18 10:25:14,161 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/data/68361b3bf/395c81d6193a4b27a702140b8457c751/FLAG7f06b78cb [2018-11-18 10:25:14,491 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:25:14,492 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c [2018-11-18 10:25:14,496 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/data/68361b3bf/395c81d6193a4b27a702140b8457c751/FLAG7f06b78cb [2018-11-18 10:25:14,918 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/data/68361b3bf/395c81d6193a4b27a702140b8457c751 [2018-11-18 10:25:14,920 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:25:14,921 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:25:14,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:25:14,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:25:14,925 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:25:14,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:25:14" (1/1) ... [2018-11-18 10:25:14,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc0d990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:14, skipping insertion in model container [2018-11-18 10:25:14,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:25:14" (1/1) ... [2018-11-18 10:25:14,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:25:14,956 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:25:15,119 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:25:15,121 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:25:15,149 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:25:15,164 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:25:15,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:15 WrapperNode [2018-11-18 10:25:15,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:25:15,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:25:15,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:25:15,166 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:25:15,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:15" (1/1) ... [2018-11-18 10:25:15,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:15" (1/1) ... [2018-11-18 10:25:15,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:15" (1/1) ... [2018-11-18 10:25:15,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:15" (1/1) ... [2018-11-18 10:25:15,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:15" (1/1) ... [2018-11-18 10:25:15,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:15" (1/1) ... [2018-11-18 10:25:15,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:15" (1/1) ... [2018-11-18 10:25:15,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:25:15,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:25:15,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:25:15,253 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:25:15,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/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 10:25:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:25:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:25:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 10:25:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 10:25:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 10:25:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-18 10:25:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:25:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:25:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 10:25:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 10:25:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 10:25:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:25:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 10:25:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:25:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:25:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:25:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 10:25:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 10:25:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-18 10:25:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:25:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:25:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:25:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 10:25:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 10:25:15,639 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:25:15,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:25:15 BoogieIcfgContainer [2018-11-18 10:25:15,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:25:15,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:25:15,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:25:15,643 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:25:15,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:25:14" (1/3) ... [2018-11-18 10:25:15,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7169bfd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:25:15, skipping insertion in model container [2018-11-18 10:25:15,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:15" (2/3) ... [2018-11-18 10:25:15,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7169bfd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:25:15, skipping insertion in model container [2018-11-18 10:25:15,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:25:15" (3/3) ... [2018-11-18 10:25:15,646 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0281_true-unreach-call.c [2018-11-18 10:25:15,653 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:25:15,659 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:25:15,668 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:25:15,687 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:25:15,687 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:25:15,687 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:25:15,687 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:25:15,687 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:25:15,688 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:25:15,688 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:25:15,688 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:25:15,688 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:25:15,699 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2018-11-18 10:25:15,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:25:15,703 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:25:15,704 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 10:25:15,705 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:25:15,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:25:15,708 INFO L82 PathProgramCache]: Analyzing trace with hash -283862119, now seen corresponding path program 1 times [2018-11-18 10:25:15,710 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:25:15,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:25:15,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:25:15,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:25:15,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:25:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:25:15,813 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 10:25:15,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:25:15,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:25:15,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:25:15,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:25:15,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:25:15,832 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2018-11-18 10:25:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:25:15,855 INFO L93 Difference]: Finished difference Result 151 states and 222 transitions. [2018-11-18 10:25:15,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:25:15,856 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 10:25:15,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:25:15,863 INFO L225 Difference]: With dead ends: 151 [2018-11-18 10:25:15,863 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 10:25:15,866 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 10:25:15,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 10:25:15,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-11-18 10:25:15,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-18 10:25:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2018-11-18 10:25:15,896 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 22 [2018-11-18 10:25:15,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:25:15,896 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2018-11-18 10:25:15,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:25:15,896 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2018-11-18 10:25:15,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 10:25:15,897 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:25:15,897 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:25:15,898 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:25:15,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:25:15,898 INFO L82 PathProgramCache]: Analyzing trace with hash -715341956, now seen corresponding path program 1 times [2018-11-18 10:25:15,898 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:25:15,898 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:25:15,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:25:15,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:25:15,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:25:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:25:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:25:15,971 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:25:16,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:25:16 BoogieIcfgContainer [2018-11-18 10:25:16,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:25:16,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:25:16,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:25:16,002 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:25:16,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:25:15" (3/4) ... [2018-11-18 10:25:16,005 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 10:25:16,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:25:16,006 INFO L168 Benchmark]: Toolchain (without parser) took 1085.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -101.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:25:16,007 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:25:16,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.79 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 937.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:25:16,008 INFO L168 Benchmark]: Boogie Preprocessor took 86.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 937.7 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:25:16,009 INFO L168 Benchmark]: RCFGBuilder took 386.86 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: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:25:16,010 INFO L168 Benchmark]: TraceAbstraction took 361.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:25:16,010 INFO L168 Benchmark]: Witness Printer took 3.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:25:16,012 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.79 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 937.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 86.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 937.7 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 386.86 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: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 361.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 192]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 102, overapproximation of bitwiseAnd at line 116, overapproximation of someUnaryFLOAToperation at line 100, overapproximation of someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L98-L106] 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)=6442450966, \old(one_asin)=6442450953, \old(one_sqrt)=6442450951, \old(pio2_hi_asin)=6442450952, \old(pio2_lo_asin)=6442450961, \old(pio4_hi_asin)=6442450954, \old(pS0_asin)=6442450960, \old(pS1_asin)=6442450955, \old(pS2_asin)=6442450947, \old(pS3_asin)=6442450959, \old(pS4_asin)=6442450964, \old(pS5_asin)=6442450956, \old(qS1_asin)=6442450967, \old(qS2_asin)=6442450965, \old(qS3_asin)=6442450945, \old(qS4_asin)=6442450962, \old(tiny_sqrt)=6442450963, huge_asin=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] [L184] float x = __VERIFIER_nondet_float(); [L186] COND TRUE x < -1.0f || x > 1.0f VAL [huge_asin=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=6442450949] [L188] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450949, huge_asin=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] [L109] float t, w, p, q, c, r, s; [L110] __int32_t hx, ix; VAL [\old(x)=6442450949, huge_asin=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=6442450949] [L112] FCALL ieee_float_shape_type gf_u; [L113] FCALL gf_u.value = (x) [L114] EXPR, FCALL gf_u.word [L114] (hx) = gf_u.word [L115] COND FALSE !(0) VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, hx=-2147483648, 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=6442450949] [L116] ix = hx & 0x7fffffff VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, hx=-2147483648, 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=6442450949] [L117] COND TRUE ix == 0x3f800000 [L119] RET return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, hx=-2147483648, 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=6442450949] [L188] EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=6442450948, huge_asin=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=6442450949] [L188] float res = __ieee754_asinf(x); [L191] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450948, huge_asin=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] [L13] RET return x != x; VAL [\old(x)=6442450948, \result=0, huge_asin=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=6442450948] [L191] EXPR isnan_float(res) VAL [huge_asin=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=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L191] COND TRUE !isnan_float(res) [L192] __VERIFIER_error() VAL [huge_asin=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=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 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=80occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 10:25:17,535 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:25:17,536 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:25:17,544 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:25:17,545 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:25:17,545 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:25:17,546 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:25:17,547 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:25:17,548 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:25:17,549 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:25:17,549 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:25:17,550 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:25:17,550 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:25:17,551 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:25:17,552 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:25:17,552 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:25:17,553 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:25:17,554 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:25:17,555 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:25:17,556 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:25:17,557 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:25:17,558 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:25:17,560 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:25:17,560 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:25:17,560 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:25:17,561 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:25:17,562 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:25:17,562 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:25:17,563 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:25:17,564 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:25:17,564 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:25:17,564 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:25:17,564 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:25:17,565 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:25:17,565 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:25:17,566 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:25:17,566 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 10:25:17,576 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:25:17,576 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:25:17,576 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:25:17,577 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 10:25:17,577 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:25:17,577 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:25:17,577 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:25:17,577 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:25:17,578 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:25:17,578 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:25:17,578 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:25:17,578 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:25:17,578 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:25:17,578 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:25:17,578 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 10:25:17,578 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 10:25:17,578 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:25:17,579 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:25:17,579 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:25:17,579 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:25:17,579 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:25:17,579 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:25:17,579 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:25:17,579 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:25:17,579 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:25:17,580 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:25:17,580 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:25:17,580 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:25:17,580 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 10:25:17,580 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:25:17,580 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 10:25:17,580 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 10:25:17,580 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_8a12caef-35b8-4ad4-a620-a3ac70c65a50/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 -> ea7f366bf9317f351e4b5f275a15188ee4a0efbb [2018-11-18 10:25:17,610 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:25:17,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:25:17,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:25:17,624 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:25:17,624 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:25:17,625 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c [2018-11-18 10:25:17,671 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/data/c668a9ced/046363a64b1b4f419d4c28839c1c229a/FLAG0fe5645cc [2018-11-18 10:25:18,003 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:25:18,004 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c [2018-11-18 10:25:18,009 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/data/c668a9ced/046363a64b1b4f419d4c28839c1c229a/FLAG0fe5645cc [2018-11-18 10:25:18,429 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/data/c668a9ced/046363a64b1b4f419d4c28839c1c229a [2018-11-18 10:25:18,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:25:18,433 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:25:18,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:25:18,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:25:18,437 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:25:18,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:25:18" (1/1) ... [2018-11-18 10:25:18,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd0158d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:18, skipping insertion in model container [2018-11-18 10:25:18,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:25:18" (1/1) ... [2018-11-18 10:25:18,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:25:18,467 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:25:18,641 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:25:18,646 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:25:18,685 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:25:18,704 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:25:18,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:18 WrapperNode [2018-11-18 10:25:18,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:25:18,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:25:18,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:25:18,705 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:25:18,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:18" (1/1) ... [2018-11-18 10:25:18,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:18" (1/1) ... [2018-11-18 10:25:18,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:18" (1/1) ... [2018-11-18 10:25:18,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:18" (1/1) ... [2018-11-18 10:25:18,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:18" (1/1) ... [2018-11-18 10:25:18,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:18" (1/1) ... [2018-11-18 10:25:18,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:18" (1/1) ... [2018-11-18 10:25:18,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:25:18,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:25:18,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:25:18,759 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:25:18,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/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 10:25:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:25:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:25:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 10:25:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 10:25:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 10:25:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-18 10:25:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:25:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:25:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 10:25:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 10:25:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 10:25:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:25:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 10:25:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 10:25:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:25:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 10:25:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 10:25:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 10:25:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-18 10:25:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:25:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:25:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:25:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 10:25:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 10:25:19,004 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:25:19,026 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:25:28,130 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:25:28,769 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:25:28,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:25:28 BoogieIcfgContainer [2018-11-18 10:25:28,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:25:28,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:25:28,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:25:28,773 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:25:28,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:25:18" (1/3) ... [2018-11-18 10:25:28,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75dfadec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:25:28, skipping insertion in model container [2018-11-18 10:25:28,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:18" (2/3) ... [2018-11-18 10:25:28,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75dfadec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:25:28, skipping insertion in model container [2018-11-18 10:25:28,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:25:28" (3/3) ... [2018-11-18 10:25:28,776 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0281_true-unreach-call.c [2018-11-18 10:25:28,782 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:25:28,786 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:25:28,795 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:25:28,813 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:25:28,813 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:25:28,814 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:25:28,814 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:25:28,814 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:25:28,814 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:25:28,814 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:25:28,814 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:25:28,814 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:25:28,826 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-11-18 10:25:28,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 10:25:28,831 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:25:28,831 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 10:25:28,833 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:25:28,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:25:28,836 INFO L82 PathProgramCache]: Analyzing trace with hash 49819568, now seen corresponding path program 1 times [2018-11-18 10:25:28,839 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:25:28,839 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/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 10:25:28,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:25:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:25:29,048 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:25:29,062 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 10:25:29,062 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:25:29,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:25:29,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:25:29,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:25:29,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:25:29,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:25:29,088 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 2 states. [2018-11-18 10:25:29,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:25:29,113 INFO L93 Difference]: Finished difference Result 149 states and 220 transitions. [2018-11-18 10:25:29,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:25:29,114 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 10:25:29,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:25:29,120 INFO L225 Difference]: With dead ends: 149 [2018-11-18 10:25:29,120 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 10:25:29,123 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 10:25:29,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 10:25:29,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-11-18 10:25:29,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 10:25:29,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2018-11-18 10:25:29,159 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 21 [2018-11-18 10:25:29,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:25:29,160 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2018-11-18 10:25:29,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:25:29,160 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2018-11-18 10:25:29,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:25:29,161 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:25:29,161 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 10:25:29,161 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:25:29,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:25:29,162 INFO L82 PathProgramCache]: Analyzing trace with hash -851231602, now seen corresponding path program 1 times [2018-11-18 10:25:29,162 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:25:29,162 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/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 10:25:29,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:25:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:25:29,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:25:29,469 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 10:25:29,469 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:25:29,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:25:29,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:25:29,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:25:29,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:25:29,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:25:29,481 INFO L87 Difference]: Start difference. First operand 74 states and 91 transitions. Second operand 7 states. [2018-11-18 10:25:36,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:25:36,361 INFO L93 Difference]: Finished difference Result 87 states and 104 transitions. [2018-11-18 10:25:36,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:25:36,362 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-18 10:25:36,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:25:36,364 INFO L225 Difference]: With dead ends: 87 [2018-11-18 10:25:36,364 INFO L226 Difference]: Without dead ends: 77 [2018-11-18 10:25:36,365 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 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 10:25:36,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-11-18 10:25:36,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2018-11-18 10:25:36,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 10:25:36,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2018-11-18 10:25:36,372 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 22 [2018-11-18 10:25:36,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:25:36,372 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2018-11-18 10:25:36,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:25:36,372 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2018-11-18 10:25:36,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 10:25:36,373 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:25:36,373 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:25:36,373 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:25:36,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:25:36,373 INFO L82 PathProgramCache]: Analyzing trace with hash 324300594, now seen corresponding path program 1 times [2018-11-18 10:25:36,374 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:25:36,374 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/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 10:25:36,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:25:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:25:36,596 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:25:37,552 WARN L180 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-18 10:25:38,879 WARN L180 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-18 10:25:41,609 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-18 10:25:44,620 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 10:25:44,621 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:25:44,630 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:25:44,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:25:44,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:25:44,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:25:44,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:25:44,631 INFO L87 Difference]: Start difference. First operand 74 states and 90 transitions. Second operand 7 states. [2018-11-18 10:25:52,560 WARN L180 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 10:25:53,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:25:53,820 INFO L93 Difference]: Finished difference Result 81 states and 97 transitions. [2018-11-18 10:25:53,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:25:53,820 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-18 10:25:53,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:25:53,821 INFO L225 Difference]: With dead ends: 81 [2018-11-18 10:25:53,821 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 10:25:53,822 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:25:53,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 10:25:53,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-11-18 10:25:53,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 10:25:53,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 89 transitions. [2018-11-18 10:25:53,831 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 89 transitions. Word has length 23 [2018-11-18 10:25:53,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:25:53,831 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 89 transitions. [2018-11-18 10:25:53,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:25:53,831 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions. [2018-11-18 10:25:53,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 10:25:53,832 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:25:53,832 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:25:53,832 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:25:53,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:25:53,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1134460536, now seen corresponding path program 1 times [2018-11-18 10:25:53,833 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:25:53,833 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/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 10:25:53,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:25:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:25:54,863 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:25:55,019 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 10:25:55,020 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:25:55,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:25:55,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 10:25:55,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 10:25:55,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 10:25:55,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:25:55,044 INFO L87 Difference]: Start difference. First operand 74 states and 89 transitions. Second operand 9 states. [2018-11-18 10:26:00,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:26:00,293 INFO L93 Difference]: Finished difference Result 100 states and 119 transitions. [2018-11-18 10:26:00,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 10:26:00,294 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2018-11-18 10:26:00,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:26:00,295 INFO L225 Difference]: With dead ends: 100 [2018-11-18 10:26:00,295 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 10:26:00,296 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-18 10:26:00,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 10:26:00,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 69. [2018-11-18 10:26:00,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-18 10:26:00,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2018-11-18 10:26:00,302 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 25 [2018-11-18 10:26:00,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:26:00,302 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2018-11-18 10:26:00,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 10:26:00,303 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2018-11-18 10:26:00,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 10:26:00,303 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:26:00,304 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, 1] [2018-11-18 10:26:00,304 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:26:00,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:26:00,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1419310335, now seen corresponding path program 1 times [2018-11-18 10:26:00,304 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:26:00,305 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/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 10:26:00,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:26:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:26:01,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:26:01,655 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 10:26:01,655 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:26:01,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:26:01,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 10:26:01,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 10:26:01,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 10:26:01,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:26:01,685 INFO L87 Difference]: Start difference. First operand 69 states and 81 transitions. Second operand 9 states. [2018-11-18 10:26:04,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:26:04,309 INFO L93 Difference]: Finished difference Result 85 states and 99 transitions. [2018-11-18 10:26:04,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 10:26:04,309 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2018-11-18 10:26:04,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:26:04,310 INFO L225 Difference]: With dead ends: 85 [2018-11-18 10:26:04,310 INFO L226 Difference]: Without dead ends: 69 [2018-11-18 10:26:04,311 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-11-18 10:26:04,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-18 10:26:04,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-11-18 10:26:04,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-18 10:26:04,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2018-11-18 10:26:04,315 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 45 [2018-11-18 10:26:04,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:26:04,316 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2018-11-18 10:26:04,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 10:26:04,316 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2018-11-18 10:26:04,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 10:26:04,317 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:26:04,317 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, 1, 1, 1] [2018-11-18 10:26:04,317 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:26:04,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:26:04,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1188087622, now seen corresponding path program 1 times [2018-11-18 10:26:04,318 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:26:04,318 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-18 10:26:04,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:26:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:26:05,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:26:05,582 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 10:26:05,582 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:26:05,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:26:05,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:26:05,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 10:26:05,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:26:05,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:26:05,610 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand 5 states. [2018-11-18 10:26:05,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:26:05,643 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2018-11-18 10:26:05,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 10:26:05,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-11-18 10:26:05,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:26:05,644 INFO L225 Difference]: With dead ends: 69 [2018-11-18 10:26:05,644 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:26:05,644 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:26:05,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:26:05,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:26:05,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:26:05,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:26:05,645 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2018-11-18 10:26:05,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:26:05,645 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:26:05,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 10:26:05,645 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:26:05,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:26:05,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:26:05,893 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2018-11-18 10:26:06,134 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2018-11-18 10:26:07,163 WARN L180 SmtUtils]: Spent 955.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 10:26:07,165 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-18 10:26:07,165 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-18 10:26:07,165 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-18 10:26:07,165 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:26:07,165 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:26:07,165 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:26:07,165 INFO L425 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 83 96) no Hoare annotation was computed. [2018-11-18 10:26:07,165 INFO L425 ceAbstractionStarter]: For program point L85-1(lines 85 89) no Hoare annotation was computed. [2018-11-18 10:26:07,166 INFO L428 ceAbstractionStarter]: At program point L85-3(lines 85 89) the Hoare annotation is: true [2018-11-18 10:26:07,166 INFO L425 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 83 96) no Hoare annotation was computed. [2018-11-18 10:26:07,166 INFO L425 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2018-11-18 10:26:07,166 INFO L425 ceAbstractionStarter]: For program point L90-2(lines 83 96) no Hoare annotation was computed. [2018-11-18 10:26:07,166 INFO L425 ceAbstractionStarter]: For program point L90-3(lines 90 94) no Hoare annotation was computed. [2018-11-18 10:26:07,166 INFO L428 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 83 96) the Hoare annotation is: true [2018-11-18 10:26:07,166 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:26:07,166 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 10:26:07,166 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:26:07,166 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:26:07,166 INFO L425 ceAbstractionStarter]: For program point L192(line 192) no Hoare annotation was computed. [2018-11-18 10:26:07,166 INFO L421 ceAbstractionStarter]: At program point L191(line 191) the Hoare annotation is: (and (exists ((__ieee754_asinf_~x (_ FloatingPoint 8 24))) (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven __ieee754_asinf_~x __ieee754_asinf_~x))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse1)) (fp.gt main_~x~0 .cse1)))) [2018-11-18 10:26:07,166 INFO L425 ceAbstractionStarter]: For program point L191-1(lines 191 194) no Hoare annotation was computed. [2018-11-18 10:26:07,167 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 176 198) the Hoare annotation is: true [2018-11-18 10:26:07,167 INFO L421 ceAbstractionStarter]: At program point L188(line 188) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse0)) (fp.gt main_~x~0 .cse0))) [2018-11-18 10:26:07,167 INFO L425 ceAbstractionStarter]: For program point L188-1(line 188) no Hoare annotation was computed. [2018-11-18 10:26:07,167 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 195) no Hoare annotation was computed. [2018-11-18 10:26:07,167 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 176 198) no Hoare annotation was computed. [2018-11-18 10:26:07,167 INFO L425 ceAbstractionStarter]: For program point L186-2(lines 186 195) no Hoare annotation was computed. [2018-11-18 10:26:07,167 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 192) no Hoare annotation was computed. [2018-11-18 10:26:07,167 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 176 198) no Hoare annotation was computed. [2018-11-18 10:26:07,167 INFO L425 ceAbstractionStarter]: For program point L159(lines 159 163) no Hoare annotation was computed. [2018-11-18 10:26:07,167 INFO L425 ceAbstractionStarter]: For program point L159-2(lines 151 169) no Hoare annotation was computed. [2018-11-18 10:26:07,167 INFO L425 ceAbstractionStarter]: For program point L159-3(lines 159 163) no Hoare annotation was computed. [2018-11-18 10:26:07,167 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 137) no Hoare annotation was computed. [2018-11-18 10:26:07,168 INFO L421 ceAbstractionStarter]: At program point L122-1(lines 122 137) the Hoare annotation is: (let ((.cse0 (and (not (bvsgt __ieee754_asinf_~ix~2 (_ bv1065353216 32))) (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (= (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|))) (.cse2 (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~2))))) (or (and .cse0 (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (let ((.cse1 (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1))) (and (not (bvsgt .cse1 (_ 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|) (not (= (bvadd .cse1 (_ bv3229614080 32)) (_ bv0 32))) (not (bvslt .cse1 (_ bv1056964608 32)))))) .cse2) (and .cse0 (bvslt __ieee754_asinf_~ix~2 (_ bv1056964608 32)) .cse2))) [2018-11-18 10:26:07,168 INFO L421 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (let ((.cse0 (and (not (bvsgt __ieee754_asinf_~ix~2 (_ bv1065353216 32))) (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (= (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|))) (.cse2 (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~2))))) (or (and .cse0 (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (let ((.cse1 (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1))) (and (not (bvsgt .cse1 (_ 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|) (not (= (bvadd .cse1 (_ bv3229614080 32)) (_ bv0 32))) (not (bvslt .cse1 (_ bv1056964608 32)))))) .cse2) (and .cse0 (bvslt __ieee754_asinf_~ix~2 (_ bv1056964608 32)) .cse2))) [2018-11-18 10:26:07,168 INFO L425 ceAbstractionStarter]: For program point L147-1(line 147) no Hoare annotation was computed. [2018-11-18 10:26:07,168 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 10:26:07,168 INFO L425 ceAbstractionStarter]: For program point L123(lines 123 136) no Hoare annotation was computed. [2018-11-18 10:26:07,168 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 169) no Hoare annotation was computed. [2018-11-18 10:26:07,168 INFO L425 ceAbstractionStarter]: For program point L148-2(lines 108 174) no Hoare annotation was computed. [2018-11-18 10:26:07,168 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2018-11-18 10:26:07,168 INFO L421 ceAbstractionStarter]: At program point L111-3(lines 111 115) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-11-18 10:26:07,168 INFO L425 ceAbstractionStarter]: For program point L111-4(lines 111 115) no Hoare annotation was computed. [2018-11-18 10:26:07,168 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 125) no Hoare annotation was computed. [2018-11-18 10:26:07,169 INFO L425 ceAbstractionStarter]: For program point L120(lines 120 137) no Hoare annotation was computed. [2018-11-18 10:26:07,169 INFO L428 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 108 174) the Hoare annotation is: true [2018-11-18 10:26:07,169 INFO L425 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 108 174) no Hoare annotation was computed. [2018-11-18 10:26:07,169 INFO L425 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 108 174) no Hoare annotation was computed. [2018-11-18 10:26:07,169 INFO L425 ceAbstractionStarter]: For program point L154-1(lines 154 158) no Hoare annotation was computed. [2018-11-18 10:26:07,169 INFO L421 ceAbstractionStarter]: At program point L154-3(lines 154 158) the Hoare annotation is: (and (not (bvsgt __ieee754_asinf_~ix~2 (_ bv1065353216 32))) (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (= (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 (= (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~2)))) [2018-11-18 10:26:07,169 INFO L425 ceAbstractionStarter]: For program point L117(lines 117 137) no Hoare annotation was computed. [2018-11-18 10:26:07,169 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-18 10:26:07,169 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-18 10:26:07,169 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-11-18 10:26:07,169 INFO L428 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: true [2018-11-18 10:26:07,169 INFO L425 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-11-18 10:26:07,169 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L428 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: true [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-11-18 10:26:07,170 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-18 10:26:07,171 INFO L428 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: true [2018-11-18 10:26:07,171 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-11-18 10:26:07,171 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-11-18 10:26:07,171 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-11-18 10:26:07,171 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-18 10:26:07,171 INFO L428 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: true [2018-11-18 10:26:07,171 INFO L425 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-11-18 10:26:07,176 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,177 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,177 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,177 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,180 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,181 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,181 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,181 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:26:07 BoogieIcfgContainer [2018-11-18 10:26:07,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:26:07,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:26:07,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:26:07,184 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:26:07,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:25:28" (3/4) ... [2018-11-18 10:26:07,186 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:26:07,191 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 10:26:07,191 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:26:07,191 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-18 10:26:07,192 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:26:07,192 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-11-18 10:26:07,192 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-18 10:26:07,196 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2018-11-18 10:26:07,197 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-11-18 10:26:07,197 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 10:26:07,197 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:26:07,215 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 10:26:07,216 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!~bvsgt32(ix, 1065353216bv32) && \old(x) == x) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(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) [2018-11-18 10:26:07,246 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8a12caef-35b8-4ad4-a620-a3ac70c65a50/bin-2019/uautomizer/witness.graphml [2018-11-18 10:26:07,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:26:07,247 INFO L168 Benchmark]: Toolchain (without parser) took 48815.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 949.7 MB in the beginning and 787.9 MB in the end (delta: 161.8 MB). Peak memory consumption was 281.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:26:07,248 INFO L168 Benchmark]: CDTParser took 0.16 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 10:26:07,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.82 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 928.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:26:07,248 INFO L168 Benchmark]: Boogie Preprocessor took 53.97 ms. Allocated memory is still 1.0 GB. Free memory is still 928.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:26:07,249 INFO L168 Benchmark]: RCFGBuilder took 10010.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -140.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:26:07,249 INFO L168 Benchmark]: TraceAbstraction took 38413.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 794.5 MB in the end (delta: 273.8 MB). Peak memory consumption was 273.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:26:07,249 INFO L168 Benchmark]: Witness Printer took 63.04 ms. Allocated memory is still 1.1 GB. Free memory was 794.5 MB in the beginning and 787.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:26:07,251 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.82 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 928.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.97 ms. Allocated memory is still 1.0 GB. Free memory is still 928.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 10010.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -140.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 38413.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 794.5 MB in the end (delta: 273.8 MB). Peak memory consumption was 273.8 MB. Max. memory is 11.5 GB. * Witness Printer took 63.04 ms. Allocated memory is still 1.1 GB. Free memory was 794.5 MB in the beginning and 787.9 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 192]: 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: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 154]: Loop Invariant [2018-11-18 10:26:07,257 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,257 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,258 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,258 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,258 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,258 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,258 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:26:07,259 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((!~bvsgt32(ix, 1065353216bv32) && \old(x) == x) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(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) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 79 locations, 1 error locations. SAFE Result, 38.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 24.0s AutomataDifference, 0.0s DeadEndRemovalTime, 1.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 488 SDtfs, 192 SDslu, 1713 SDs, 0 SdLazy, 203 SolverSat, 36 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 19.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred 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, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 38 PreInvPairs, 56 NumberOfFragments, 293 HoareAnnotationTreeSize, 38 FomulaSimplifications, 176 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 133 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 177 ConstructedInterpolants, 34 QuantifiedInterpolants, 31225 SizeOfPredicates, 17 NumberOfNonLiveVariables, 749 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...