./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0470_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_0470_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8eccc0a1ec5fb20c9e3e430fe73e90c136e37e20 .............................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_0470_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8eccc0a1ec5fb20c9e3e430fe73e90c136e37e20 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:58:05,192 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:58:05,193 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:58:05,206 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:58:05,206 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:58:05,207 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:58:05,209 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:58:05,211 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:58:05,212 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:58:05,213 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:58:05,214 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:58:05,214 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:58:05,215 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:58:05,216 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:58:05,218 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:58:05,218 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:58:05,219 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:58:05,221 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:58:05,223 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:58:05,225 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:58:05,226 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:58:05,227 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:58:05,230 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:58:05,230 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:58:05,230 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:58:05,231 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:58:05,232 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:58:05,233 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:58:05,234 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:58:05,235 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:58:05,236 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:58:05,236 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:58:05,237 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:58:05,237 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:58:05,238 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:58:05,239 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:58:05,239 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:58:05,255 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:58:05,256 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:58:05,257 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:58:05,257 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:58:05,257 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:58:05,258 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:58:05,258 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:58:05,258 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:58:05,258 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:58:05,258 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:58:05,259 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:58:05,259 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:58:05,259 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:58:05,259 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:58:05,259 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:58:05,259 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:58:05,260 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:58:05,260 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:58:05,260 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:58:05,260 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:58:05,260 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:58:05,261 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:58:05,261 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:58:05,261 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:58:05,261 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:58:05,261 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:58:05,262 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:58:05,262 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:58:05,262 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:58:05,262 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:58:05,262 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8eccc0a1ec5fb20c9e3e430fe73e90c136e37e20 [2018-11-28 17:58:05,302 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:58:05,321 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:58:05,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:58:05,327 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:58:05,327 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:58:05,328 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0470_true-unreach-call.c [2018-11-28 17:58:05,395 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe7747dc/50288207356c44f6958fae3528fcf59b/FLAGe342eb81c [2018-11-28 17:58:05,873 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:58:05,874 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0470_true-unreach-call.c [2018-11-28 17:58:05,882 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe7747dc/50288207356c44f6958fae3528fcf59b/FLAGe342eb81c [2018-11-28 17:58:06,233 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe7747dc/50288207356c44f6958fae3528fcf59b [2018-11-28 17:58:06,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:58:06,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:58:06,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:58:06,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:58:06,245 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:58:06,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:06,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be4c2eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06, skipping insertion in model container [2018-11-28 17:58:06,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:06,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:58:06,300 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:58:06,647 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:58:06,663 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:58:06,743 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:58:06,773 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:58:06,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06 WrapperNode [2018-11-28 17:58:06,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:58:06,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:58:06,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:58:06,776 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:58:06,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:06,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:06,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:58:06,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:58:06,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:58:06,930 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:58:06,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:06,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:06,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:06,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:06,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:07,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:07,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:07,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:58:07,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:58:07,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:58:07,036 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:58:07,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 17:58:07,119 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-28 17:58:07,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-28 17:58:07,123 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:58:07,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:58:07,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:58:07,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:58:07,123 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 17:58:07,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 17:58:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:58:07,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:58:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:58:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:58:07,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:58:07,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:58:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:58:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:58:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 17:58:07,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 17:58:07,911 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:58:07,911 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-28 17:58:07,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:07 BoogieIcfgContainer [2018-11-28 17:58:07,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:58:07,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:58:07,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:58:07,918 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:58:07,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:58:06" (1/3) ... [2018-11-28 17:58:07,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd81ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:07, skipping insertion in model container [2018-11-28 17:58:07,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (2/3) ... [2018-11-28 17:58:07,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd81ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:07, skipping insertion in model container [2018-11-28 17:58:07,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:07" (3/3) ... [2018-11-28 17:58:07,922 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0470_true-unreach-call.c [2018-11-28 17:58:07,935 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:58:07,944 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:58:07,963 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:58:08,012 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:58:08,013 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:58:08,013 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:58:08,014 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:58:08,014 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:58:08,014 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:58:08,015 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:58:08,015 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:58:08,015 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:58:08,045 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2018-11-28 17:58:08,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 17:58:08,054 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:08,055 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:08,057 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:08,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:08,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1524271188, now seen corresponding path program 1 times [2018-11-28 17:58:08,067 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:58:08,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:58:08,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:58:08,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:08,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:58:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:08,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:58:08,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:08,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:58:08,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:58:08,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:58:08,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:58:08,281 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 2 states. [2018-11-28 17:58:08,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:08,315 INFO L93 Difference]: Finished difference Result 126 states and 188 transitions. [2018-11-28 17:58:08,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:58:08,317 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 17:58:08,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:08,328 INFO L225 Difference]: With dead ends: 126 [2018-11-28 17:58:08,328 INFO L226 Difference]: Without dead ends: 63 [2018-11-28 17:58:08,333 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:58:08,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-28 17:58:08,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-11-28 17:58:08,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-28 17:58:08,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2018-11-28 17:58:08,395 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 22 [2018-11-28 17:58:08,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:08,396 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2018-11-28 17:58:08,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:58:08,396 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2018-11-28 17:58:08,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 17:58:08,399 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:08,400 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:08,400 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:08,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:08,400 INFO L82 PathProgramCache]: Analyzing trace with hash -199733833, now seen corresponding path program 1 times [2018-11-28 17:58:08,401 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:58:08,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:58:08,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:58:08,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:08,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:58:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:58:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:58:08,546 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:58:08,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:58:08 BoogieIcfgContainer [2018-11-28 17:58:08,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:58:08,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:58:08,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:58:08,596 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:58:08,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:07" (3/4) ... [2018-11-28 17:58:08,601 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:58:08,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:58:08,602 INFO L168 Benchmark]: Toolchain (without parser) took 2364.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -113.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:08,604 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:58:08,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.92 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:08,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 154.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:08,606 INFO L168 Benchmark]: Boogie Preprocessor took 105.47 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. [2018-11-28 17:58:08,607 INFO L168 Benchmark]: RCFGBuilder took 876.80 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:08,607 INFO L168 Benchmark]: TraceAbstraction took 681.71 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: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:08,608 INFO L168 Benchmark]: Witness Printer took 5.06 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. [2018-11-28 17:58:08,613 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 534.92 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 154.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 105.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 876.80 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 681.71 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: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.06 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: 174]: 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 87, overapproximation of bitwiseAnd at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 169. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L84-L91] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [\old(one_acos)=6442450961, \old(one_sqrt)=6442450951, \old(pi)=6442450954, \old(pi)=6442450950, \old(pi)=6442450964, \old(pS0_acos)=6442450944, \old(pS1_acos)=6442450962, \old(pS2_acos)=6442450963, \old(pS3_acos)=6442450948, \old(pS4_acos)=6442450953, \old(pS5_acos)=6442450965, \old(qS1_acos)=6442450947, \old(qS2_acos)=6442450955, \old(qS3_acos)=6442450959, \old(qS4_acos)=6442450949, \old(tiny_sqrt)=6442450960, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L169] float x = 0.0f / 0.0f; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L170] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=6442450957, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L94] float z, p, q, r, w, s, c, df; [L95] __int32_t hx, ix; VAL [\old(x)=6442450957, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L97] ieee_float_shape_type gf_u; [L98] gf_u.value = (x) [L99] EXPR gf_u.word [L99] (hx) = gf_u.word [L101] ix = hx & 0x7fffffff VAL [\old(x)=6442450957, hx=2147483647, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L102] COND TRUE ix == 0x3f800000 VAL [\old(x)=6442450957, hx=2147483647, ix=1065353216, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L103] COND TRUE hx > 0 [L104] return 0.0; VAL [\old(x)=6442450957, \result=0, hx=2147483647, ix=1065353216, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L170] RET, EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L170] float res = __ieee754_acosf(x); [L173] CALL, EXPR isnan_float(res) VAL [\old(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L13] return x != x; VAL [\old(x)=0, \result=0, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L173] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L173] COND TRUE !isnan_float(res) [L174] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 67 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 84 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=67occurred 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, 0.1s 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 0.1.24-91b1670 [2018-11-28 17:58:11,134 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:58:11,136 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:58:11,149 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:58:11,150 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:58:11,151 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:58:11,153 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:58:11,155 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:58:11,157 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:58:11,158 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:58:11,159 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:58:11,160 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:58:11,161 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:58:11,162 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:58:11,163 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:58:11,164 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:58:11,165 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:58:11,168 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:58:11,170 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:58:11,172 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:58:11,173 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:58:11,175 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:58:11,178 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:58:11,178 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:58:11,179 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:58:11,180 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:58:11,182 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:58:11,182 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:58:11,184 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:58:11,185 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:58:11,186 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:58:11,187 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:58:11,187 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:58:11,187 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:58:11,189 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:58:11,190 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:58:11,191 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:58:11,207 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:58:11,208 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:58:11,208 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:58:11,209 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:58:11,209 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:58:11,209 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:58:11,210 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:58:11,210 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:58:11,211 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:58:11,211 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:58:11,211 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:58:11,211 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:58:11,211 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:58:11,212 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:58:11,212 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:58:11,213 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:58:11,213 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:58:11,213 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:58:11,213 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:58:11,213 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:58:11,214 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:58:11,214 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:58:11,214 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:58:11,214 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:58:11,214 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:58:11,214 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:58:11,216 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:58:11,216 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:58:11,216 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:58:11,217 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:58:11,217 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:58:11,217 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:58:11,218 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8eccc0a1ec5fb20c9e3e430fe73e90c136e37e20 [2018-11-28 17:58:11,256 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:58:11,269 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:58:11,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:58:11,275 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:58:11,276 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:58:11,277 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0470_true-unreach-call.c [2018-11-28 17:58:11,341 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/040c71d1f/ed0a96d7022a43e6bb546b131dfa100a/FLAGeff0f3cee [2018-11-28 17:58:11,839 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:58:11,840 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0470_true-unreach-call.c [2018-11-28 17:58:11,850 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/040c71d1f/ed0a96d7022a43e6bb546b131dfa100a/FLAGeff0f3cee [2018-11-28 17:58:12,181 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/040c71d1f/ed0a96d7022a43e6bb546b131dfa100a [2018-11-28 17:58:12,185 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:58:12,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:58:12,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:58:12,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:58:12,192 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:58:12,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8e26559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12, skipping insertion in model container [2018-11-28 17:58:12,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:58:12,242 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:58:12,502 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:58:12,512 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:58:12,579 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:58:12,631 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:58:12,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12 WrapperNode [2018-11-28 17:58:12,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:58:12,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:58:12,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:58:12,634 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:58:12,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:58:12,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:58:12,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:58:12,743 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:58:12,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:58:12,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:58:12,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:58:12,810 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:58:12,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 17:58:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-28 17:58:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-28 17:58:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:58:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:58:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 17:58:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 17:58:12,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 17:58:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:58:12,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:58:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:58:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:58:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:58:12,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:58:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 17:58:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:58:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:58:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 17:58:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 17:58:15,471 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:58:23,131 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:58:23,318 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:58:24,159 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:58:24,160 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-28 17:58:24,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:24 BoogieIcfgContainer [2018-11-28 17:58:24,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:58:24,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:58:24,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:58:24,166 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:58:24,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:58:12" (1/3) ... [2018-11-28 17:58:24,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138029d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:24, skipping insertion in model container [2018-11-28 17:58:24,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (2/3) ... [2018-11-28 17:58:24,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138029d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:24, skipping insertion in model container [2018-11-28 17:58:24,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:24" (3/3) ... [2018-11-28 17:58:24,172 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0470_true-unreach-call.c [2018-11-28 17:58:24,184 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:58:24,194 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:58:24,217 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:58:24,254 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:58:24,256 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:58:24,256 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:58:24,256 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:58:24,256 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:58:24,257 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:58:24,257 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:58:24,258 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:58:24,258 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:58:24,280 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2018-11-28 17:58:24,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 17:58:24,289 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:24,291 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:24,294 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:24,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:24,302 INFO L82 PathProgramCache]: Analyzing trace with hash -709161853, now seen corresponding path program 1 times [2018-11-28 17:58:24,308 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:24,308 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-28 17:58:24,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:58:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:24,468 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:58:24,488 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:24,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:24,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:58:24,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:58:24,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:58:24,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:58:24,523 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2018-11-28 17:58:24,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:24,556 INFO L93 Difference]: Finished difference Result 124 states and 186 transitions. [2018-11-28 17:58:24,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:58:24,557 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 17:58:24,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:24,568 INFO L225 Difference]: With dead ends: 124 [2018-11-28 17:58:24,568 INFO L226 Difference]: Without dead ends: 62 [2018-11-28 17:58:24,573 INFO L631 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 [2018-11-28 17:58:24,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-11-28 17:58:24,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-11-28 17:58:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-11-28 17:58:24,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2018-11-28 17:58:24,622 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 21 [2018-11-28 17:58:24,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:24,622 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2018-11-28 17:58:24,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:58:24,623 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2018-11-28 17:58:24,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 17:58:24,624 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:24,624 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:24,624 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:24,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:24,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1128526692, now seen corresponding path program 1 times [2018-11-28 17:58:24,626 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:24,626 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 17:58:24,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:24,738 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:25,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:58:25,083 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:25,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:25,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:58:25,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:58:25,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:58:25,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:58:25,097 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand 7 states. [2018-11-28 17:58:31,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:31,919 INFO L93 Difference]: Finished difference Result 74 states and 90 transitions. [2018-11-28 17:58:31,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 17:58:31,921 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-28 17:58:31,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:31,924 INFO L225 Difference]: With dead ends: 74 [2018-11-28 17:58:31,925 INFO L226 Difference]: Without dead ends: 63 [2018-11-28 17:58:31,926 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:58:31,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-28 17:58:31,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2018-11-28 17:58:31,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-28 17:58:31,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2018-11-28 17:58:31,940 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 22 [2018-11-28 17:58:31,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:31,941 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2018-11-28 17:58:31,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:58:31,941 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2018-11-28 17:58:31,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 17:58:31,942 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:31,942 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:31,944 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:31,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:31,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1789050876, now seen corresponding path program 1 times [2018-11-28 17:58:31,945 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:31,945 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-28 17:58:31,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 17:58:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:32,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:35,473 WARN L180 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-28 17:58:38,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:58:38,299 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:38,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:38,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 17:58:38,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 17:58:38,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 17:58:38,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 17:58:38,312 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand 9 states. [2018-11-28 17:58:42,684 WARN L180 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 9 [2018-11-28 17:58:57,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:57,524 INFO L93 Difference]: Finished difference Result 70 states and 85 transitions. [2018-11-28 17:58:57,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 17:58:57,526 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-28 17:58:57,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:57,529 INFO L225 Difference]: With dead ends: 70 [2018-11-28 17:58:57,529 INFO L226 Difference]: Without dead ends: 63 [2018-11-28 17:58:57,530 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 17:58:57,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-28 17:58:57,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2018-11-28 17:58:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-28 17:58:57,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 75 transitions. [2018-11-28 17:58:57,543 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 75 transitions. Word has length 22 [2018-11-28 17:58:57,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:57,544 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 75 transitions. [2018-11-28 17:58:57,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 17:58:57,544 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2018-11-28 17:58:57,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 17:58:57,545 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:57,545 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:57,545 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:57,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:57,547 INFO L82 PathProgramCache]: Analyzing trace with hash -752448456, now seen corresponding path program 1 times [2018-11-28 17:58:57,547 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:57,548 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 17:58:57,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:57,673 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:57,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:58:57,803 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:57,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:57,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:58:57,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:58:57,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:58:57,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:58:57,822 INFO L87 Difference]: Start difference. First operand 61 states and 75 transitions. Second operand 7 states. [2018-11-28 17:59:03,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:59:03,616 INFO L93 Difference]: Finished difference Result 71 states and 84 transitions. [2018-11-28 17:59:03,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 17:59:03,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-28 17:59:03,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:59:03,623 INFO L225 Difference]: With dead ends: 71 [2018-11-28 17:59:03,624 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 17:59:03,624 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:59:03,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 17:59:03,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-11-28 17:59:03,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 17:59:03,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2018-11-28 17:59:03,635 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 24 [2018-11-28 17:59:03,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:59:03,635 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2018-11-28 17:59:03,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:59:03,635 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2018-11-28 17:59:03,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 17:59:03,638 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:59:03,638 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:59:03,638 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:59:03,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:59:03,639 INFO L82 PathProgramCache]: Analyzing trace with hash -948961961, now seen corresponding path program 1 times [2018-11-28 17:59:03,640 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:59:03,640 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 17:59:03,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:59:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:59:04,895 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:59:05,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:59:05,032 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:59:05,060 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:59:05,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:59:05,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:59:05,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:59:05,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:59:05,062 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand 7 states. [2018-11-28 17:59:10,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:59:10,381 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2018-11-28 17:59:10,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 17:59:10,597 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-28 17:59:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:59:10,598 INFO L225 Difference]: With dead ends: 64 [2018-11-28 17:59:10,598 INFO L226 Difference]: Without dead ends: 53 [2018-11-28 17:59:10,599 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:59:10,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-28 17:59:10,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-11-28 17:59:10,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-28 17:59:10,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2018-11-28 17:59:10,605 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 24 [2018-11-28 17:59:10,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:59:10,607 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2018-11-28 17:59:10,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:59:10,607 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2018-11-28 17:59:10,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 17:59:10,608 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:59:10,608 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:59:10,610 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:59:10,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:59:10,610 INFO L82 PathProgramCache]: Analyzing trace with hash 489021777, now seen corresponding path program 1 times [2018-11-28 17:59:10,611 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:59:10,611 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 17:59:10,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:59:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:59:11,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:59:12,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:59:12,078 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:59:12,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:59:12,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:59:12,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:59:12,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:59:12,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:59:12,113 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand 7 states. [2018-11-28 17:59:14,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:59:14,841 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2018-11-28 17:59:14,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 17:59:14,844 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 17:59:14,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:59:14,845 INFO L225 Difference]: With dead ends: 53 [2018-11-28 17:59:14,845 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:59:14,846 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:59:14,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:59:14,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:59:14,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:59:14,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:59:14,847 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-28 17:59:14,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:59:14,849 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:59:14,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:59:14,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:59:14,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:59:14,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:59:15,178 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-28 17:59:15,179 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-28 17:59:15,179 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-28 17:59:15,179 INFO L448 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-11-28 17:59:15,179 INFO L448 ceAbstractionStarter]: For program point L122(lines 122 159) no Hoare annotation was computed. [2018-11-28 17:59:15,179 INFO L448 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 93 160) no Hoare annotation was computed. [2018-11-28 17:59:15,179 INFO L448 ceAbstractionStarter]: For program point L110(lines 110 159) no Hoare annotation was computed. [2018-11-28 17:59:15,179 INFO L448 ceAbstractionStarter]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2018-11-28 17:59:15,180 INFO L444 ceAbstractionStarter]: At program point L139-2(lines 139 143) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1)))) [2018-11-28 17:59:15,180 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 109) no Hoare annotation was computed. [2018-11-28 17:59:15,180 INFO L451 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 93 160) the Hoare annotation is: true [2018-11-28 17:59:15,180 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 148) no Hoare annotation was computed. [2018-11-28 17:59:15,180 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 112) no Hoare annotation was computed. [2018-11-28 17:59:15,180 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 134 159) no Hoare annotation was computed. [2018-11-28 17:59:15,181 INFO L448 ceAbstractionStarter]: For program point L144-2(lines 144 148) no Hoare annotation was computed. [2018-11-28 17:59:15,181 INFO L448 ceAbstractionStarter]: For program point L107(lines 107 109) no Hoare annotation was computed. [2018-11-28 17:59:15,181 INFO L448 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-11-28 17:59:15,181 INFO L448 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 93 160) no Hoare annotation was computed. [2018-11-28 17:59:15,181 INFO L444 ceAbstractionStarter]: At program point L137(line 137) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1)))) [2018-11-28 17:59:15,181 INFO L448 ceAbstractionStarter]: For program point L137-1(line 137) no Hoare annotation was computed. [2018-11-28 17:59:15,182 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2018-11-28 17:59:15,183 INFO L444 ceAbstractionStarter]: At program point L96-2(lines 96 100) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-11-28 17:59:15,183 INFO L448 ceAbstractionStarter]: For program point L96-3(lines 96 100) no Hoare annotation was computed. [2018-11-28 17:59:15,183 INFO L444 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) [2018-11-28 17:59:15,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:59:15,183 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:59:15,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:59:15,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:59:15,183 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:59:15,184 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:59:15,184 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:59:15,184 INFO L448 ceAbstractionStarter]: For program point L174(line 174) no Hoare annotation was computed. [2018-11-28 17:59:15,184 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 174) no Hoare annotation was computed. [2018-11-28 17:59:15,184 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 162 179) the Hoare annotation is: true [2018-11-28 17:59:15,184 INFO L444 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= main_~x~0 .cse1))) [2018-11-28 17:59:15,184 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 162 179) no Hoare annotation was computed. [2018-11-28 17:59:15,185 INFO L448 ceAbstractionStarter]: For program point L173-1(lines 173 176) no Hoare annotation was computed. [2018-11-28 17:59:15,185 INFO L444 ceAbstractionStarter]: At program point L170(line 170) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-28 17:59:15,185 INFO L448 ceAbstractionStarter]: For program point L170-1(line 170) no Hoare annotation was computed. [2018-11-28 17:59:15,185 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 162 179) no Hoare annotation was computed. [2018-11-28 17:59:15,185 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-28 17:59:15,185 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-28 17:59:15,185 INFO L451 ceAbstractionStarter]: At program point L53-2(lines 53 62) the Hoare annotation is: true [2018-11-28 17:59:15,186 INFO L448 ceAbstractionStarter]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2018-11-28 17:59:15,186 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-28 17:59:15,186 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-28 17:59:15,186 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-28 17:59:15,186 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-28 17:59:15,186 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-28 17:59:15,186 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-28 17:59:15,186 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-28 17:59:15,186 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-28 17:59:15,187 INFO L448 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-28 17:59:15,187 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-28 17:59:15,187 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-28 17:59:15,187 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-28 17:59:15,187 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-28 17:59:15,187 INFO L451 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: true [2018-11-28 17:59:15,187 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2018-11-28 17:59:15,187 INFO L448 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-28 17:59:15,187 INFO L451 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: true [2018-11-28 17:59:15,188 INFO L448 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2018-11-28 17:59:15,188 INFO L448 ceAbstractionStarter]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2018-11-28 17:59:15,188 INFO L451 ceAbstractionStarter]: At program point L39-3(lines 39 40) the Hoare annotation is: true [2018-11-28 17:59:15,188 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-28 17:59:15,188 INFO L448 ceAbstractionStarter]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2018-11-28 17:59:15,203 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,204 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,205 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,206 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,208 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,208 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,208 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,208 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:59:15 BoogieIcfgContainer [2018-11-28 17:59:15,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:59:15,211 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:59:15,211 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:59:15,211 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:59:15,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:24" (3/4) ... [2018-11-28 17:59:15,216 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:59:15,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-28 17:59:15,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-11-28 17:59:15,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:59:15,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:59:15,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-28 17:59:15,231 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-11-28 17:59:15,232 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-28 17:59:15,232 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 17:59:15,233 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 17:59:15,259 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:59:15,261 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(2147483647bv32, __ieee754_acosf_~hx~1) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_acosf_~hx~1), 1065353216bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]))) && \old(x) == x) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2018-11-28 17:59:15,329 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:59:15,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:59:15,334 INFO L168 Benchmark]: Toolchain (without parser) took 63147.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 951.4 MB in the beginning and 856.7 MB in the end (delta: 94.6 MB). Peak memory consumption was 224.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:15,334 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:59:15,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.12 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:15,335 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:15,336 INFO L168 Benchmark]: Boogie Preprocessor took 67.27 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: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:15,336 INFO L168 Benchmark]: RCFGBuilder took 11350.64 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:15,336 INFO L168 Benchmark]: TraceAbstraction took 51049.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 856.7 MB in the end (delta: 225.0 MB). Peak memory consumption was 225.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:15,337 INFO L168 Benchmark]: Witness Printer took 121.76 ms. Allocated memory is still 1.2 GB. Free memory is still 856.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:59:15,339 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 444.12 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 108.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.27 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: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11350.64 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 51049.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 856.7 MB in the end (delta: 225.0 MB). Peak memory consumption was 225.0 MB. Max. memory is 11.5 GB. * Witness Printer took 121.76 ms. Allocated memory is still 1.2 GB. Free memory is still 856.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: 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: 96]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant [2018-11-28 17:59:15,344 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,344 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,345 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,345 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,345 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,345 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,345 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,345 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,346 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,346 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,346 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,346 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,347 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,347 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,347 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:15,347 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] Derived loop invariant: (((\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(2147483647bv32, __ieee754_acosf_~hx~1) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_acosf_~hx~1), 1065353216bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]))) && \old(x) == x) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 66 locations, 1 error locations. SAFE Result, 50.9s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 40.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 386 SDtfs, 163 SDslu, 1508 SDs, 0 SdLazy, 174 SolverSat, 10 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 31.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 37 PreInvPairs, 50 NumberOfFragments, 160 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 140 ConstructedInterpolants, 24 QuantifiedInterpolants, 17924 SizeOfPredicates, 20 NumberOfNonLiveVariables, 654 ConjunctsInSsa, 44 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...