./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0281_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_0281_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 ea7f366bf9317f351e4b5f275a15188ee4a0efbb ................................................................................................................................................................................................................................................................................................................ 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_0281_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 ea7f366bf9317f351e4b5f275a15188ee4a0efbb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 17:57:13,550 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:57:13,552 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:57:13,572 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:57:13,573 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:57:13,576 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:57:13,579 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:57:13,582 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:57:13,585 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:57:13,587 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:57:13,588 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:57:13,588 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:57:13,589 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:57:13,590 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:57:13,591 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:57:13,592 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:57:13,593 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:57:13,595 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:57:13,597 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:57:13,598 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:57:13,599 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:57:13,600 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:57:13,606 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:57:13,606 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:57:13,607 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:57:13,611 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:57:13,612 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:57:13,613 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:57:13,614 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:57:13,617 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:57:13,617 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:57:13,621 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:57:13,621 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:57:13,621 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:57:13,623 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:57:13,623 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:57:13,624 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:57:13,651 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:57:13,654 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:57:13,655 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:57:13,655 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:57:13,657 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:57:13,658 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:57:13,658 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:57:13,658 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:57:13,658 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:57:13,658 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:57:13,659 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:57:13,660 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:57:13,660 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:57:13,660 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:57:13,660 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:57:13,660 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:57:13,661 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:57:13,661 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:57:13,661 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:57:13,661 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:57:13,661 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:57:13,662 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:57:13,666 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:57:13,666 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:57:13,666 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:57:13,667 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:57:13,667 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:57:13,667 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:57:13,667 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:57:13,667 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:57:13,667 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 -> ea7f366bf9317f351e4b5f275a15188ee4a0efbb [2018-11-28 17:57:13,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:57:13,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:57:13,765 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:57:13,767 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:57:13,768 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:57:13,768 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0281_true-unreach-call.c [2018-11-28 17:57:13,841 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/070517265/20ab08de54bc4821b3e4f8b7b0d9fccf/FLAGece46d85e [2018-11-28 17:57:14,293 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:57:14,294 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0281_true-unreach-call.c [2018-11-28 17:57:14,304 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/070517265/20ab08de54bc4821b3e4f8b7b0d9fccf/FLAGece46d85e [2018-11-28 17:57:14,650 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/070517265/20ab08de54bc4821b3e4f8b7b0d9fccf [2018-11-28 17:57:14,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:57:14,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:57:14,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:57:14,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:57:14,659 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:57:14,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:57:14" (1/1) ... [2018-11-28 17:57:14,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236eee85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:14, skipping insertion in model container [2018-11-28 17:57:14,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:57:14" (1/1) ... [2018-11-28 17:57:14,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:57:14,705 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:57:15,016 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:57:15,021 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:57:15,091 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:57:15,139 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:57:15,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:15 WrapperNode [2018-11-28 17:57:15,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:57:15,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:57:15,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:57:15,141 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:57:15,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:15" (1/1) ... [2018-11-28 17:57:15,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:15" (1/1) ... [2018-11-28 17:57:15,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:57:15,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:57:15,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:57:15,251 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:57:15,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:15" (1/1) ... [2018-11-28 17:57:15,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:15" (1/1) ... [2018-11-28 17:57:15,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:15" (1/1) ... [2018-11-28 17:57:15,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:15" (1/1) ... [2018-11-28 17:57:15,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:15" (1/1) ... [2018-11-28 17:57:15,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:15" (1/1) ... [2018-11-28 17:57:15,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:15" (1/1) ... [2018-11-28 17:57:15,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:57:15,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:57:15,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:57:15,317 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:57:15,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:15" (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 17:57:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:57:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:57:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-28 17:57:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-28 17:57:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:57:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:57:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 17:57:15,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 17:57:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:57:15,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:57:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-28 17:57:15,381 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-28 17:57:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:57:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:57:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:57:15,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:57:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:57:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:57:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 17:57:15,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 17:57:16,237 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:57:16,237 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-28 17:57:16,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:16 BoogieIcfgContainer [2018-11-28 17:57:16,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:57:16,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:57:16,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:57:16,244 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:57:16,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:57:14" (1/3) ... [2018-11-28 17:57:16,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d26b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:57:16, skipping insertion in model container [2018-11-28 17:57:16,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:15" (2/3) ... [2018-11-28 17:57:16,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d26b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:57:16, skipping insertion in model container [2018-11-28 17:57:16,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:16" (3/3) ... [2018-11-28 17:57:16,251 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0281_true-unreach-call.c [2018-11-28 17:57:16,262 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:57:16,272 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:57:16,292 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:57:16,347 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:57:16,350 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:57:16,350 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:57:16,351 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:57:16,351 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:57:16,351 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:57:16,352 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:57:16,352 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:57:16,352 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:57:16,383 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2018-11-28 17:57:16,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 17:57:16,390 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:57:16,391 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 17:57:16,393 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:57:16,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:57:16,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1961299150, now seen corresponding path program 1 times [2018-11-28 17:57:16,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:57:16,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:57:16,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:57:16,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:57:16,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:57:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:57:16,575 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 17:57:16,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:57:16,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:57:16,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:57:16,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:57:16,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:57:16,602 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2018-11-28 17:57:16,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:57:16,631 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2018-11-28 17:57:16,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:57:16,632 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 17:57:16,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:57:16,644 INFO L225 Difference]: With dead ends: 147 [2018-11-28 17:57:16,644 INFO L226 Difference]: Without dead ends: 73 [2018-11-28 17:57:16,650 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 17:57:16,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-28 17:57:16,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-11-28 17:57:16,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-28 17:57:16,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2018-11-28 17:57:16,700 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 22 [2018-11-28 17:57:16,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:57:16,700 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2018-11-28 17:57:16,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:57:16,701 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-11-28 17:57:16,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 17:57:16,702 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:57:16,702 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 17:57:16,702 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:57:16,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:57:16,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1590430122, now seen corresponding path program 1 times [2018-11-28 17:57:16,703 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:57:16,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:57:16,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:57:16,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:57:16,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:57:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:57:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:57:16,853 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:57:16,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:57:16 BoogieIcfgContainer [2018-11-28 17:57:16,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:57:16,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:57:16,908 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:57:16,908 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:57:16,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:16" (3/4) ... [2018-11-28 17:57:16,912 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:57:16,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:57:16,913 INFO L168 Benchmark]: Toolchain (without parser) took 2259.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -120.9 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:16,915 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:57:16,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.65 ms. Allocated memory is still 1.0 GB. Free memory was 945.9 MB in the beginning and 929.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:16,916 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 929.8 MB in the beginning and 1.1 GB in the end (delta: -202.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:16,917 INFO L168 Benchmark]: Boogie Preprocessor took 64.57 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:16,918 INFO L168 Benchmark]: RCFGBuilder took 922.76 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:16,919 INFO L168 Benchmark]: TraceAbstraction took 667.84 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: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:16,920 INFO L168 Benchmark]: Witness Printer took 4.48 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 17:57:16,925 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 484.65 ms. Allocated memory is still 1.0 GB. Free memory was 945.9 MB in the beginning and 929.8 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 109.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 929.8 MB in the beginning and 1.1 GB in the end (delta: -202.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.57 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 922.76 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 667.84 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: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 192]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 102, overapproximation of bitwiseAnd at line 116, overapproximation of someUnaryFLOAToperation at line 100, overapproximation of someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L98-L106] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=6442450967, \old(one_asin)=6442450953, \old(one_sqrt)=6442450951, \old(pio2_hi_asin)=6442450952, \old(pio2_lo_asin)=6442450962, \old(pio4_hi_asin)=6442450954, \old(pS0_asin)=6442450961, \old(pS1_asin)=6442450955, \old(pS2_asin)=6442450947, \old(pS3_asin)=6442450960, \old(pS4_asin)=6442450965, \old(pS5_asin)=6442450956, \old(qS1_asin)=6442450968, \old(qS2_asin)=6442450966, \old(qS3_asin)=6442450945, \old(qS4_asin)=6442450963, \old(tiny_sqrt)=6442450964, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L184] float x = __VERIFIER_nondet_float(); [L186] COND TRUE x < -1.0f || x > 1.0f VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L188] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L109] float t, w, p, q, c, r, s; [L110] __int32_t hx, ix; VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L116] ix = hx & 0x7fffffff VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L117] COND TRUE ix == 0x3f800000 [L119] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, hx=-2147483648, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L188] RET, EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=6442450948, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L188] float res = __ieee754_asinf(x); [L191] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450948, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L13] return x != x; VAL [\old(x)=6442450948, \result=0, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L191] RET, EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L191] COND TRUE !isnan_float(res) [L192] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 78 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 96 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 17:57:19,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:57:19,252 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:57:19,264 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:57:19,264 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:57:19,265 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:57:19,267 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:57:19,269 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:57:19,270 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:57:19,271 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:57:19,273 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:57:19,273 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:57:19,274 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:57:19,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:57:19,276 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:57:19,277 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:57:19,278 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:57:19,280 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:57:19,283 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:57:19,285 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:57:19,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:57:19,288 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:57:19,290 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:57:19,291 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:57:19,291 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:57:19,292 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:57:19,294 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:57:19,294 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:57:19,295 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:57:19,297 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:57:19,297 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:57:19,298 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:57:19,298 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:57:19,299 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:57:19,300 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:57:19,300 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:57:19,301 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:57:19,328 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:57:19,328 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:57:19,329 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:57:19,329 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:57:19,330 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:57:19,331 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:57:19,331 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:57:19,331 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:57:19,331 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:57:19,331 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:57:19,332 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:57:19,332 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:57:19,332 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:57:19,332 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:57:19,332 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:57:19,332 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:57:19,333 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:57:19,334 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:57:19,334 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:57:19,334 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:57:19,335 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:57:19,335 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:57:19,335 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:57:19,335 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:57:19,335 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:57:19,335 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:57:19,337 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:57:19,337 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:57:19,337 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:57:19,337 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:57:19,337 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:57:19,337 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:57:19,338 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 -> ea7f366bf9317f351e4b5f275a15188ee4a0efbb [2018-11-28 17:57:19,391 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:57:19,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:57:19,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:57:19,418 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:57:19,419 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:57:19,420 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0281_true-unreach-call.c [2018-11-28 17:57:19,483 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88162793a/353598db060c4cbf9d6014600d678336/FLAG19e3dd443 [2018-11-28 17:57:19,947 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:57:19,948 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0281_true-unreach-call.c [2018-11-28 17:57:19,958 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88162793a/353598db060c4cbf9d6014600d678336/FLAG19e3dd443 [2018-11-28 17:57:20,302 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88162793a/353598db060c4cbf9d6014600d678336 [2018-11-28 17:57:20,307 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:57:20,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:57:20,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:57:20,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:57:20,315 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:57:20,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:57:20" (1/1) ... [2018-11-28 17:57:20,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df2b475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20, skipping insertion in model container [2018-11-28 17:57:20,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:57:20" (1/1) ... [2018-11-28 17:57:20,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:57:20,359 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:57:20,597 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:57:20,605 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:57:20,669 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:57:20,699 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:57:20,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20 WrapperNode [2018-11-28 17:57:20,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:57:20,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:57:20,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:57:20,700 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:57:20,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20" (1/1) ... [2018-11-28 17:57:20,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20" (1/1) ... [2018-11-28 17:57:20,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:57:20,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:57:20,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:57:20,737 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:57:20,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20" (1/1) ... [2018-11-28 17:57:20,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20" (1/1) ... [2018-11-28 17:57:20,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20" (1/1) ... [2018-11-28 17:57:20,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20" (1/1) ... [2018-11-28 17:57:20,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20" (1/1) ... [2018-11-28 17:57:20,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20" (1/1) ... [2018-11-28 17:57:20,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20" (1/1) ... [2018-11-28 17:57:20,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:57:20,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:57:20,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:57:20,866 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:57:20,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20" (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 17:57:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:57:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:57:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-28 17:57:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-28 17:57:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 17:57:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 17:57:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 17:57:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:57:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:57:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-28 17:57:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-28 17:57:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:57:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:57:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:57:20,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:57:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 17:57:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:57:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:57:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 17:57:20,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 17:57:21,322 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:57:21,395 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:57:31,164 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:57:31,276 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:57:32,140 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:57:32,140 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-28 17:57:32,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:32 BoogieIcfgContainer [2018-11-28 17:57:32,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:57:32,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:57:32,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:57:32,145 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:57:32,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:57:20" (1/3) ... [2018-11-28 17:57:32,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9ed854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:57:32, skipping insertion in model container [2018-11-28 17:57:32,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:20" (2/3) ... [2018-11-28 17:57:32,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9ed854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:57:32, skipping insertion in model container [2018-11-28 17:57:32,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:32" (3/3) ... [2018-11-28 17:57:32,150 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0281_true-unreach-call.c [2018-11-28 17:57:32,161 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:57:32,168 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:57:32,186 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:57:32,226 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:57:32,227 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:57:32,227 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:57:32,227 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:57:32,227 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:57:32,227 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:57:32,228 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:57:32,228 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:57:32,228 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:57:32,247 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-11-28 17:57:32,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 17:57:32,254 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:57:32,255 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 17:57:32,258 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:57:32,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:57:32,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1112669961, now seen corresponding path program 1 times [2018-11-28 17:57:32,269 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:57:32,269 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) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:57:32,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:57:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:57:32,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:57:32,552 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 17:57:32,557 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:57:32,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:57:32,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:57:32,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:57:32,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:57:32,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:57:32,604 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2018-11-28 17:57:32,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:57:32,658 INFO L93 Difference]: Finished difference Result 145 states and 216 transitions. [2018-11-28 17:57:32,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:57:32,660 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 17:57:32,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:57:32,674 INFO L225 Difference]: With dead ends: 145 [2018-11-28 17:57:32,675 INFO L226 Difference]: Without dead ends: 72 [2018-11-28 17:57:32,682 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 17:57:32,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-28 17:57:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-11-28 17:57:32,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 17:57:32,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2018-11-28 17:57:32,738 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 21 [2018-11-28 17:57:32,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:57:32,739 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2018-11-28 17:57:32,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:57:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2018-11-28 17:57:32,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 17:57:32,741 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:57:32,741 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:57:32,742 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:57:32,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:57:32,742 INFO L82 PathProgramCache]: Analyzing trace with hash -325270924, now seen corresponding path program 1 times [2018-11-28 17:57:32,744 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:57:32,744 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) [2018-11-28 17:57:32,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 17:57:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:57:33,003 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:57:33,295 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 17:57:33,296 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:57:33,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:57:33,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:57:33,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:57:33,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:57:33,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:57:33,319 INFO L87 Difference]: Start difference. First operand 72 states and 89 transitions. Second operand 7 states. [2018-11-28 17:57:39,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:57:39,926 INFO L93 Difference]: Finished difference Result 85 states and 102 transitions. [2018-11-28 17:57:39,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 17:57:39,935 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-28 17:57:39,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:57:39,940 INFO L225 Difference]: With dead ends: 85 [2018-11-28 17:57:39,943 INFO L226 Difference]: Without dead ends: 75 [2018-11-28 17:57:39,945 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:57:39,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-28 17:57:39,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-11-28 17:57:39,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 17:57:39,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 88 transitions. [2018-11-28 17:57:39,965 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 88 transitions. Word has length 22 [2018-11-28 17:57:39,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:57:39,966 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 88 transitions. [2018-11-28 17:57:39,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:57:39,966 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 88 transitions. [2018-11-28 17:57:39,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 17:57:39,967 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:57:39,968 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 17:57:39,968 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:57:39,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:57:39,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1816930425, now seen corresponding path program 1 times [2018-11-28 17:57:39,970 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:57:39,970 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) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 17:57:39,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:57:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:57:40,281 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:57:41,219 WARN L180 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-28 17:57:43,238 WARN L180 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-28 17:57:46,566 WARN L180 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-28 17:57:49,712 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 17:57:49,712 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:57:49,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:57:49,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:57:49,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:57:49,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:57:49,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:57:49,732 INFO L87 Difference]: Start difference. First operand 72 states and 88 transitions. Second operand 7 states. [2018-11-28 17:58:00,079 WARN L180 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-28 17:58:01,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:01,707 INFO L93 Difference]: Finished difference Result 79 states and 95 transitions. [2018-11-28 17:58:01,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 17:58:01,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-28 17:58:01,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:01,710 INFO L225 Difference]: With dead ends: 79 [2018-11-28 17:58:01,710 INFO L226 Difference]: Without dead ends: 72 [2018-11-28 17:58:01,711 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-28 17:58:01,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-28 17:58:01,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-11-28 17:58:01,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 17:58:01,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 87 transitions. [2018-11-28 17:58:01,729 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 87 transitions. Word has length 23 [2018-11-28 17:58:01,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:01,729 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 87 transitions. [2018-11-28 17:58:01,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:58:01,729 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions. [2018-11-28 17:58:01,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 17:58:01,731 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:01,732 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:01,732 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:01,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:01,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1516262063, now seen corresponding path program 1 times [2018-11-28 17:58:01,734 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:01,734 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 17:58:01,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:02,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:03,107 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 17:58:03,108 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:03,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:03,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 17:58:03,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 17:58:03,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 17:58:03,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-28 17:58:03,142 INFO L87 Difference]: Start difference. First operand 72 states and 87 transitions. Second operand 9 states. [2018-11-28 17:58:09,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:09,355 INFO L93 Difference]: Finished difference Result 98 states and 117 transitions. [2018-11-28 17:58:09,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 17:58:09,358 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2018-11-28 17:58:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:09,360 INFO L225 Difference]: With dead ends: 98 [2018-11-28 17:58:09,360 INFO L226 Difference]: Without dead ends: 72 [2018-11-28 17:58:09,361 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-28 17:58:09,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-28 17:58:09,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 67. [2018-11-28 17:58:09,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-28 17:58:09,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions. [2018-11-28 17:58:09,374 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 25 [2018-11-28 17:58:09,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:09,374 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 79 transitions. [2018-11-28 17:58:09,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 17:58:09,375 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2018-11-28 17:58:09,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-28 17:58:09,377 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:09,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:09,378 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:09,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:09,378 INFO L82 PathProgramCache]: Analyzing trace with hash -732213124, now seen corresponding path program 1 times [2018-11-28 17:58:09,380 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:09,380 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 17:58:09,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:10,799 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:11,088 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 17:58:11,088 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:11,120 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:11,120 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 17:58:11,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 17:58:11,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 17:58:11,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-28 17:58:11,122 INFO L87 Difference]: Start difference. First operand 67 states and 79 transitions. Second operand 9 states. [2018-11-28 17:58:14,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:14,206 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2018-11-28 17:58:14,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 17:58:14,207 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2018-11-28 17:58:14,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:14,209 INFO L225 Difference]: With dead ends: 83 [2018-11-28 17:58:14,209 INFO L226 Difference]: Without dead ends: 67 [2018-11-28 17:58:14,211 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-11-28 17:58:14,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-11-28 17:58:14,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-11-28 17:58:14,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-28 17:58:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 78 transitions. [2018-11-28 17:58:14,225 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 78 transitions. Word has length 45 [2018-11-28 17:58:14,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:14,225 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 78 transitions. [2018-11-28 17:58:14,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 17:58:14,226 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 78 transitions. [2018-11-28 17:58:14,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-28 17:58:14,228 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:14,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:14,229 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:14,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:14,229 INFO L82 PathProgramCache]: Analyzing trace with hash -132813291, now seen corresponding path program 1 times [2018-11-28 17:58:14,229 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:14,230 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 17:58:14,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:15,596 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:15,691 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 17:58:15,692 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:15,728 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:15,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 17:58:15,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 17:58:15,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 17:58:15,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 17:58:15,729 INFO L87 Difference]: Start difference. First operand 67 states and 78 transitions. Second operand 5 states. [2018-11-28 17:58:15,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:15,800 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2018-11-28 17:58:15,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 17:58:15,800 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-11-28 17:58:15,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:15,801 INFO L225 Difference]: With dead ends: 67 [2018-11-28 17:58:15,801 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:58:15,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 17:58:15,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:58:15,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:58:15,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:58:15,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:58:15,804 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2018-11-28 17:58:15,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:15,805 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:58:15,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 17:58:15,805 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:58:15,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:58:15,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:58:16,244 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2018-11-28 17:58:16,874 WARN L180 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2018-11-28 17:58:18,457 WARN L180 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 15 [2018-11-28 17:58:18,459 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-28 17:58:18,459 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-28 17:58:18,459 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-28 17:58:18,459 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:58:18,460 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:58:18,460 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:58:18,460 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 83 96) no Hoare annotation was computed. [2018-11-28 17:58:18,460 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2018-11-28 17:58:18,460 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 83 96) no Hoare annotation was computed. [2018-11-28 17:58:18,460 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 83 96) no Hoare annotation was computed. [2018-11-28 17:58:18,460 INFO L448 ceAbstractionStarter]: For program point L90-2(lines 90 94) no Hoare annotation was computed. [2018-11-28 17:58:18,460 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 83 96) the Hoare annotation is: true [2018-11-28 17:58:18,461 INFO L448 ceAbstractionStarter]: For program point L85-1(lines 85 89) no Hoare annotation was computed. [2018-11-28 17:58:18,461 INFO L451 ceAbstractionStarter]: At program point L85-2(lines 85 89) the Hoare annotation is: true [2018-11-28 17:58:18,461 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:58:18,461 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:58:18,461 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:58:18,461 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:58:18,461 INFO L448 ceAbstractionStarter]: For program point L192(line 192) no Hoare annotation was computed. [2018-11-28 17:58:18,462 INFO L444 ceAbstractionStarter]: At program point L191(line 191) the Hoare annotation is: (and (exists ((__ieee754_asinf_~x (_ FloatingPoint 8 24))) (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven __ieee754_asinf_~x __ieee754_asinf_~x))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse1)) (fp.gt main_~x~0 .cse1)))) [2018-11-28 17:58:18,462 INFO L448 ceAbstractionStarter]: For program point L191-1(lines 191 194) no Hoare annotation was computed. [2018-11-28 17:58:18,462 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 176 198) the Hoare annotation is: true [2018-11-28 17:58:18,462 INFO L444 ceAbstractionStarter]: At program point L188(line 188) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse0)) (fp.gt main_~x~0 .cse0))) [2018-11-28 17:58:18,462 INFO L448 ceAbstractionStarter]: For program point L188-1(line 188) no Hoare annotation was computed. [2018-11-28 17:58:18,462 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 195) no Hoare annotation was computed. [2018-11-28 17:58:18,462 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 176 198) no Hoare annotation was computed. [2018-11-28 17:58:18,463 INFO L448 ceAbstractionStarter]: For program point L186-2(lines 186 195) no Hoare annotation was computed. [2018-11-28 17:58:18,463 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 176 198) no Hoare annotation was computed. [2018-11-28 17:58:18,463 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 192) no Hoare annotation was computed. [2018-11-28 17:58:18,463 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 163) no Hoare annotation was computed. [2018-11-28 17:58:18,463 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 151 169) no Hoare annotation was computed. [2018-11-28 17:58:18,463 INFO L448 ceAbstractionStarter]: For program point L159-2(lines 159 163) no Hoare annotation was computed. [2018-11-28 17:58:18,463 INFO L448 ceAbstractionStarter]: For program point L122(lines 122 137) no Hoare annotation was computed. [2018-11-28 17:58:18,464 INFO L444 ceAbstractionStarter]: At program point L122-1(lines 122 137) the Hoare annotation is: (let ((.cse0 (and (not (bvsgt __ieee754_asinf_~ix~2 (_ bv1065353216 32))) (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|))) (.cse2 (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~2))))) (or (and .cse0 (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (let ((.cse1 (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1))) (and (not (bvsgt .cse1 (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (not (= (bvadd .cse1 (_ bv3229614080 32)) (_ bv0 32))) (not (bvslt .cse1 (_ bv1056964608 32)))))) .cse2) (and .cse0 (bvslt __ieee754_asinf_~ix~2 (_ bv1056964608 32)) .cse2))) [2018-11-28 17:58:18,464 INFO L444 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (let ((.cse0 (and (not (bvsgt __ieee754_asinf_~ix~2 (_ bv1065353216 32))) (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|))) (.cse2 (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~2))))) (or (and .cse0 (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (let ((.cse1 (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1))) (and (not (bvsgt .cse1 (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (not (= (bvadd .cse1 (_ bv3229614080 32)) (_ bv0 32))) (not (bvslt .cse1 (_ bv1056964608 32)))))) .cse2) (and .cse0 (bvslt __ieee754_asinf_~ix~2 (_ bv1056964608 32)) .cse2))) [2018-11-28 17:58:18,464 INFO L448 ceAbstractionStarter]: For program point L147-1(line 147) no Hoare annotation was computed. [2018-11-28 17:58:18,464 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-28 17:58:18,464 INFO L448 ceAbstractionStarter]: For program point L123(lines 123 136) no Hoare annotation was computed. [2018-11-28 17:58:18,465 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 169) no Hoare annotation was computed. [2018-11-28 17:58:18,465 INFO L448 ceAbstractionStarter]: For program point L148-2(lines 108 174) no Hoare annotation was computed. [2018-11-28 17:58:18,465 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2018-11-28 17:58:18,465 INFO L444 ceAbstractionStarter]: At program point L111-2(lines 111 115) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-11-28 17:58:18,465 INFO L448 ceAbstractionStarter]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2018-11-28 17:58:18,465 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 125) no Hoare annotation was computed. [2018-11-28 17:58:18,465 INFO L448 ceAbstractionStarter]: For program point L120(lines 120 137) no Hoare annotation was computed. [2018-11-28 17:58:18,465 INFO L451 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 108 174) the Hoare annotation is: true [2018-11-28 17:58:18,466 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 108 174) no Hoare annotation was computed. [2018-11-28 17:58:18,466 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 108 174) no Hoare annotation was computed. [2018-11-28 17:58:18,466 INFO L448 ceAbstractionStarter]: For program point L154-1(lines 154 158) no Hoare annotation was computed. [2018-11-28 17:58:18,466 INFO L444 ceAbstractionStarter]: At program point L154-2(lines 154 158) the Hoare annotation is: (and (not (bvsgt __ieee754_asinf_~ix~2 (_ bv1065353216 32))) (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~2)))) [2018-11-28 17:58:18,466 INFO L448 ceAbstractionStarter]: For program point L117(lines 117 137) no Hoare annotation was computed. [2018-11-28 17:58:18,466 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-28 17:58:18,466 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-28 17:58:18,466 INFO L451 ceAbstractionStarter]: At program point L53-2(lines 53 62) the Hoare annotation is: true [2018-11-28 17:58:18,467 INFO L448 ceAbstractionStarter]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2018-11-28 17:58:18,467 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-28 17:58:18,467 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-28 17:58:18,467 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-28 17:58:18,467 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-28 17:58:18,467 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-28 17:58:18,467 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-28 17:58:18,468 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-28 17:58:18,468 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-28 17:58:18,468 INFO L448 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-28 17:58:18,468 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-28 17:58:18,468 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-28 17:58:18,468 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-28 17:58:18,468 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-28 17:58:18,468 INFO L451 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: true [2018-11-28 17:58:18,469 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2018-11-28 17:58:18,469 INFO L448 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-28 17:58:18,469 INFO L451 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: true [2018-11-28 17:58:18,469 INFO L448 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2018-11-28 17:58:18,469 INFO L448 ceAbstractionStarter]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2018-11-28 17:58:18,469 INFO L451 ceAbstractionStarter]: At program point L39-3(lines 39 40) the Hoare annotation is: true [2018-11-28 17:58:18,469 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-28 17:58:18,469 INFO L448 ceAbstractionStarter]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2018-11-28 17:58:18,483 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,484 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,485 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,485 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,491 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,492 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,492 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,492 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:58:18 BoogieIcfgContainer [2018-11-28 17:58:18,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:58:18,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:58:18,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:58:18,496 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:58:18,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:32" (3/4) ... [2018-11-28 17:58:18,501 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:58:18,511 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-28 17:58:18,512 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:58:18,512 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-28 17:58:18,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:58:18,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-11-28 17:58:18,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-28 17:58:18,521 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-11-28 17:58:18,522 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-28 17:58:18,522 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 17:58:18,523 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:58:18,573 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:58:18,575 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!~bvsgt32(ix, 1065353216bv32) && \old(x) == x) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix) [2018-11-28 17:58:18,657 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:58:18,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:58:18,661 INFO L168 Benchmark]: Toolchain (without parser) took 58352.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.2 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -239.7 MB). Peak memory consumption was 280.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:18,661 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:58:18,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.07 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 929.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:18,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.82 ms. Allocated memory is still 1.0 GB. Free memory is still 929.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:58:18,666 INFO L168 Benchmark]: Boogie Preprocessor took 128.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:18,666 INFO L168 Benchmark]: RCFGBuilder took 11275.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:18,667 INFO L168 Benchmark]: TraceAbstraction took 46353.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 813.4 MB in the end (delta: 271.9 MB). Peak memory consumption was 271.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:18,667 INFO L168 Benchmark]: Witness Printer took 164.20 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 813.4 MB in the beginning and 1.2 GB in the end (delta: -372.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:18,672 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 389.07 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 929.9 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 36.82 ms. Allocated memory is still 1.0 GB. Free memory is still 929.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 128.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11275.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 46353.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 813.4 MB in the end (delta: 271.9 MB). Peak memory consumption was 271.9 MB. Max. memory is 11.5 GB. * Witness Printer took 164.20 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 813.4 MB in the beginning and 1.2 GB in the end (delta: -372.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 192]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 154]: Loop Invariant [2018-11-28 17:58:18,685 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,685 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,685 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,686 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,686 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,686 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,686 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:18,692 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((!~bvsgt32(ix, 1065353216bv32) && \old(x) == x) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 77 locations, 1 error locations. SAFE Result, 46.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 28.0s AutomataDifference, 0.0s DeadEndRemovalTime, 2.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 476 SDtfs, 213 SDslu, 1601 SDs, 0 SdLazy, 201 SolverSat, 46 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 21.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 38 PreInvPairs, 56 NumberOfFragments, 293 HoareAnnotationTreeSize, 38 FomulaSimplifications, 176 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 133 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 177 ConstructedInterpolants, 34 QuantifiedInterpolants, 31225 SizeOfPredicates, 17 NumberOfNonLiveVariables, 767 ConjunctsInSsa, 41 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...