./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0931_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_0931_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 d2f16ecfa870c96b6993f19e89d203c20f11280a .............................................................................................................................................................................................................................................................................................................. 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_0931_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 d2f16ecfa870c96b6993f19e89d203c20f11280a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:02:38,401 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:02:38,403 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:02:38,420 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:02:38,421 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:02:38,422 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:02:38,423 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:02:38,425 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:02:38,427 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:02:38,428 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:02:38,429 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:02:38,430 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:02:38,431 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:02:38,433 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:02:38,436 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:02:38,437 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:02:38,438 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:02:38,441 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:02:38,445 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:02:38,449 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:02:38,450 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:02:38,452 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:02:38,454 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:02:38,454 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:02:38,454 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:02:38,455 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:02:38,456 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:02:38,457 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:02:38,457 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:02:38,458 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:02:38,458 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:02:38,459 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:02:38,459 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:02:38,459 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:02:38,462 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:02:38,463 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:02:38,463 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:02:38,488 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:02:38,488 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:02:38,489 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:02:38,489 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:02:38,490 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:02:38,490 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:02:38,490 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:02:38,490 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:02:38,491 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:02:38,491 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:02:38,491 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:02:38,491 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:02:38,491 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:02:38,491 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:02:38,491 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:02:38,492 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:02:38,492 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:02:38,492 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:02:38,492 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:02:38,492 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:02:38,493 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:02:38,493 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:02:38,493 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:02:38,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:02:38,493 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:02:38,493 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:02:38,494 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:02:38,494 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:02:38,494 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:02:38,494 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:02:38,494 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 -> d2f16ecfa870c96b6993f19e89d203c20f11280a [2018-11-28 18:02:38,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:02:38,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:02:38,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:02:38,568 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:02:38,569 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:02:38,570 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-11-28 18:02:38,637 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9580d0860/38fbe7c1f40a4a9e979878b702d57206/FLAG639a6f98a [2018-11-28 18:02:39,140 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:02:39,142 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-11-28 18:02:39,155 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9580d0860/38fbe7c1f40a4a9e979878b702d57206/FLAG639a6f98a [2018-11-28 18:02:39,485 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9580d0860/38fbe7c1f40a4a9e979878b702d57206 [2018-11-28 18:02:39,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:02:39,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:02:39,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:02:39,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:02:39,497 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:02:39,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:02:39" (1/1) ... [2018-11-28 18:02:39,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d20bde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39, skipping insertion in model container [2018-11-28 18:02:39,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:02:39" (1/1) ... [2018-11-28 18:02:39,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:02:39,547 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:02:39,855 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:02:39,864 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:02:39,939 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:02:39,980 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:02:39,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39 WrapperNode [2018-11-28 18:02:39,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:02:39,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:02:39,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:02:39,982 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:02:39,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39" (1/1) ... [2018-11-28 18:02:40,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39" (1/1) ... [2018-11-28 18:02:40,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:02:40,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:02:40,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:02:40,013 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:02:40,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39" (1/1) ... [2018-11-28 18:02:40,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39" (1/1) ... [2018-11-28 18:02:40,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39" (1/1) ... [2018-11-28 18:02:40,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39" (1/1) ... [2018-11-28 18:02:40,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39" (1/1) ... [2018-11-28 18:02:40,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39" (1/1) ... [2018-11-28 18:02:40,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39" (1/1) ... [2018-11-28 18:02:40,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:02:40,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:02:40,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:02:40,148 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:02:40,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39" (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 18:02:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:02:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:02:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:02:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:02:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:02:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:02:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:02:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:02:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:02:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:02:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-28 18:02:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-28 18:02:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:02:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:02:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:02:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:02:40,748 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:02:40,750 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-28 18:02:40,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:40 BoogieIcfgContainer [2018-11-28 18:02:40,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:02:40,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:02:40,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:02:40,754 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:02:40,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:02:39" (1/3) ... [2018-11-28 18:02:40,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32dcc4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:02:40, skipping insertion in model container [2018-11-28 18:02:40,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:39" (2/3) ... [2018-11-28 18:02:40,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32dcc4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:02:40, skipping insertion in model container [2018-11-28 18:02:40,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:40" (3/3) ... [2018-11-28 18:02:40,758 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0931_true-unreach-call.c [2018-11-28 18:02:40,767 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:02:40,775 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:02:40,793 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:02:40,826 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:02:40,827 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:02:40,827 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:02:40,827 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:02:40,828 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:02:40,828 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:02:40,828 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:02:40,829 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:02:40,829 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:02:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-11-28 18:02:40,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 18:02:40,857 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:40,858 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 18:02:40,860 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:40,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:40,867 INFO L82 PathProgramCache]: Analyzing trace with hash -620426535, now seen corresponding path program 1 times [2018-11-28 18:02:40,869 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:02:40,870 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:02:40,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:02:40,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:40,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:02:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:41,043 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 18:02:41,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:41,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:02:41,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:02:41,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:02:41,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:02:41,067 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-11-28 18:02:41,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:02:41,093 INFO L93 Difference]: Finished difference Result 84 states and 123 transitions. [2018-11-28 18:02:41,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:02:41,095 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-28 18:02:41,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:02:41,104 INFO L225 Difference]: With dead ends: 84 [2018-11-28 18:02:41,104 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 18:02:41,109 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 18:02:41,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 18:02:41,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-28 18:02:41,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 18:02:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2018-11-28 18:02:41,148 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 23 [2018-11-28 18:02:41,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:02:41,148 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2018-11-28 18:02:41,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:02:41,149 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2018-11-28 18:02:41,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:02:41,150 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:41,150 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:02:41,150 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:41,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:41,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1811129790, now seen corresponding path program 1 times [2018-11-28 18:02:41,151 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:02:41,151 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:02:41,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:02:41,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:41,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:02:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:02:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:02:41,338 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:02:41,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:02:41 BoogieIcfgContainer [2018-11-28 18:02:41,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:02:41,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:02:41,390 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:02:41,390 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:02:41,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:40" (3/4) ... [2018-11-28 18:02:41,395 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:02:41,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:02:41,396 INFO L168 Benchmark]: Toolchain (without parser) took 1905.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -110.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:41,398 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:02:41,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 488.60 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 936.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:41,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.46 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:02:41,400 INFO L168 Benchmark]: Boogie Preprocessor took 134.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:41,401 INFO L168 Benchmark]: RCFGBuilder took 602.88 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: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:41,402 INFO L168 Benchmark]: TraceAbstraction took 638.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:41,403 INFO L168 Benchmark]: Witness Printer took 5.19 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 18:02:41,408 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 488.60 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 936.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.46 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 134.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 602.88 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: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 638.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.19 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: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 106. Possible FailurePath: [L12-L16] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L18] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450964, \old(Lg2_log)=6442450965, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450948, \old(Lg5_log)=6442450951, \old(Lg6_log)=6442450960, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450947, \old(ln2_lo_log)=6442450953, \old(two25_log)=6442450957, \old(zero_log)=6442450955, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L116] float x = 1.0f / 0.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L117] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=6442450952, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L21] float hfsq, f, s, z, R, w, t1, t2, dk; [L22] __int32_t k, ix, i, j; VAL [\old(x)=6442450952, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L30] k = 0 VAL [\old(x)=6442450952, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L31] COND TRUE ((ix & 0x7fffffff) == 0) [L32] return -two25_log / zero_log; VAL [\old(x)=6442450952, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L117] RET, EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450950, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L117] float res = __ieee754_logf(x); [L120] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450950, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L100] __int32_t ix; VAL [\old(x)=6442450950, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450950, zero_log=0] [L102] ieee_float_shape_type gf_u; [L103] gf_u.value = (x) [L104] EXPR gf_u.word [L104] (ix) = gf_u.word [L106] ix &= 0x7fffffff [L107] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450950, \result=0, ix=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450950, zero_log=0] [L120] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450950, two25_log=33554432, x=6442450952, zero_log=0] [L120] COND TRUE !isinf_float(res) [L121] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450950, two25_log=33554432, x=6442450952, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 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=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 18:02:43,718 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:02:43,720 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:02:43,733 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:02:43,733 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:02:43,734 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:02:43,736 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:02:43,739 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:02:43,741 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:02:43,742 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:02:43,743 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:02:43,743 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:02:43,744 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:02:43,746 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:02:43,747 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:02:43,748 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:02:43,749 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:02:43,751 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:02:43,754 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:02:43,756 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:02:43,757 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:02:43,758 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:02:43,761 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:02:43,762 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:02:43,762 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:02:43,763 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:02:43,765 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:02:43,765 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:02:43,766 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:02:43,768 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:02:43,768 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:02:43,770 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:02:43,770 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:02:43,770 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:02:43,771 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:02:43,773 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:02:43,773 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:02:43,790 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:02:43,791 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:02:43,791 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:02:43,792 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:02:43,793 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:02:43,793 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:02:43,793 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:02:43,794 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:02:43,794 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:02:43,794 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:02:43,794 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:02:43,795 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:02:43,796 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:02:43,796 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:02:43,796 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:02:43,796 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:02:43,796 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:02:43,797 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:02:43,797 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:02:43,797 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:02:43,797 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:02:43,797 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:02:43,798 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:02:43,799 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:02:43,799 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:02:43,799 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:02:43,799 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:02:43,800 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:02:43,800 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:02:43,800 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:02:43,801 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:02:43,801 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:02:43,801 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 -> d2f16ecfa870c96b6993f19e89d203c20f11280a [2018-11-28 18:02:43,839 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:02:43,852 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:02:43,856 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:02:43,858 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:02:43,859 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:02:43,859 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-11-28 18:02:43,916 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/219cb46a4/a0804b7b560d41e583c11d887f2af806/FLAGcd1e66b64 [2018-11-28 18:02:44,464 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:02:44,465 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-11-28 18:02:44,480 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/219cb46a4/a0804b7b560d41e583c11d887f2af806/FLAGcd1e66b64 [2018-11-28 18:02:44,762 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/219cb46a4/a0804b7b560d41e583c11d887f2af806 [2018-11-28 18:02:44,766 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:02:44,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:02:44,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:02:44,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:02:44,773 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:02:44,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:02:44" (1/1) ... [2018-11-28 18:02:44,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@100c32a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44, skipping insertion in model container [2018-11-28 18:02:44,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:02:44" (1/1) ... [2018-11-28 18:02:44,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:02:44,811 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:02:45,120 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:02:45,139 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:02:45,193 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:02:45,237 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:02:45,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:45 WrapperNode [2018-11-28 18:02:45,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:02:45,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:02:45,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:02:45,239 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:02:45,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:45" (1/1) ... [2018-11-28 18:02:45,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:45" (1/1) ... [2018-11-28 18:02:45,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:02:45,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:02:45,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:02:45,291 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:02:45,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:45" (1/1) ... [2018-11-28 18:02:45,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:45" (1/1) ... [2018-11-28 18:02:45,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:45" (1/1) ... [2018-11-28 18:02:45,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:45" (1/1) ... [2018-11-28 18:02:45,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:45" (1/1) ... [2018-11-28 18:02:45,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:45" (1/1) ... [2018-11-28 18:02:45,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:45" (1/1) ... [2018-11-28 18:02:45,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:02:45,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:02:45,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:02:45,425 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:02:45,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:45" (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 18:02:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:02:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:02:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 18:02:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:02:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:02:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:02:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:02:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:02:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:02:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-28 18:02:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-28 18:02:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:02:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:02:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 18:02:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:02:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:02:45,678 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:02:46,631 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:02:58,507 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:02:58,570 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:02:58,570 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-28 18:02:58,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:58 BoogieIcfgContainer [2018-11-28 18:02:58,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:02:58,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:02:58,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:02:58,575 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:02:58,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:02:44" (1/3) ... [2018-11-28 18:02:58,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670ef377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:02:58, skipping insertion in model container [2018-11-28 18:02:58,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:45" (2/3) ... [2018-11-28 18:02:58,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670ef377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:02:58, skipping insertion in model container [2018-11-28 18:02:58,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:58" (3/3) ... [2018-11-28 18:02:58,579 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0931_true-unreach-call.c [2018-11-28 18:02:58,588 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:02:58,597 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:02:58,616 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:02:58,651 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:02:58,652 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:02:58,652 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:02:58,653 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:02:58,653 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:02:58,653 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:02:58,653 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:02:58,653 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:02:58,653 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:02:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-11-28 18:02:58,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 18:02:58,680 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:58,681 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 18:02:58,684 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:58,690 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:58,691 INFO L82 PathProgramCache]: Analyzing trace with hash -501312773, now seen corresponding path program 1 times [2018-11-28 18:02:58,695 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:02:58,695 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 18:02:58,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:59,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:02:59,040 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 18:02:59,042 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:02:59,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:59,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:02:59,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:02:59,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:02:59,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:02:59,090 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-11-28 18:02:59,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:02:59,115 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions. [2018-11-28 18:02:59,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:02:59,117 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 18:02:59,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:02:59,127 INFO L225 Difference]: With dead ends: 82 [2018-11-28 18:02:59,127 INFO L226 Difference]: Without dead ends: 41 [2018-11-28 18:02:59,131 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 18:02:59,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-28 18:02:59,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-28 18:02:59,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 18:02:59,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-11-28 18:02:59,171 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 22 [2018-11-28 18:02:59,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:02:59,172 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-28 18:02:59,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:02:59,172 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-11-28 18:02:59,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 18:02:59,173 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:59,174 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:02:59,174 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:59,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:59,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1288548818, now seen corresponding path program 1 times [2018-11-28 18:02:59,175 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:02:59,175 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 18:02:59,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:59,493 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:02:59,836 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 18:02:59,837 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:02:59,857 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:59,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:02:59,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:02:59,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:02:59,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:02:59,861 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 6 states. [2018-11-28 18:03:04,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:04,463 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2018-11-28 18:03:04,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:03:04,465 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-11-28 18:03:04,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:04,468 INFO L225 Difference]: With dead ends: 58 [2018-11-28 18:03:04,469 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 18:03:04,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:03:04,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 18:03:04,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2018-11-28 18:03:04,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 18:03:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-11-28 18:03:04,479 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 24 [2018-11-28 18:03:04,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:04,479 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-11-28 18:03:04,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:03:04,480 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-11-28 18:03:04,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:03:04,481 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:04,481 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:04,481 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:04,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:04,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1497344050, now seen corresponding path program 1 times [2018-11-28 18:03:04,482 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:04,483 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 18:03:04,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:04,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:04,890 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 18:03:04,890 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:04,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:04,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:03:04,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:03:04,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:03:04,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:03:04,906 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 6 states. [2018-11-28 18:03:08,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:08,399 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2018-11-28 18:03:08,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:03:08,401 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-28 18:03:08,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:08,403 INFO L225 Difference]: With dead ends: 58 [2018-11-28 18:03:08,404 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 18:03:08,404 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:03:08,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 18:03:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2018-11-28 18:03:08,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 18:03:08,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-11-28 18:03:08,414 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 25 [2018-11-28 18:03:08,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:08,414 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-11-28 18:03:08,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:03:08,415 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-11-28 18:03:08,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 18:03:08,416 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:08,416 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] [2018-11-28 18:03:08,416 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:08,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:08,417 INFO L82 PathProgramCache]: Analyzing trace with hash -553673678, now seen corresponding path program 1 times [2018-11-28 18:03:08,417 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:08,417 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 18:03:08,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:08,549 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:09,583 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 18:03:09,583 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:09,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:09,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 18:03:09,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 18:03:09,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 18:03:09,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:03:09,603 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 11 states. [2018-11-28 18:03:10,291 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 18:03:24,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:24,730 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2018-11-28 18:03:24,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 18:03:24,731 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-28 18:03:24,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:24,732 INFO L225 Difference]: With dead ends: 50 [2018-11-28 18:03:24,732 INFO L226 Difference]: Without dead ends: 43 [2018-11-28 18:03:24,734 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-28 18:03:24,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-28 18:03:24,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-11-28 18:03:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 18:03:24,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2018-11-28 18:03:24,744 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 26 [2018-11-28 18:03:24,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:24,745 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2018-11-28 18:03:24,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 18:03:24,745 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2018-11-28 18:03:24,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 18:03:24,746 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:24,746 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] [2018-11-28 18:03:24,747 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:24,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:24,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1873417268, now seen corresponding path program 1 times [2018-11-28 18:03:24,748 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:24,748 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) [2018-11-28 18:03:24,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 18:03:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:25,858 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:25,975 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 18:03:25,976 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:26,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:26,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:03:26,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:03:26,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:03:26,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:03:26,011 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 6 states. [2018-11-28 18:03:29,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:29,447 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2018-11-28 18:03:29,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:03:29,448 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-11-28 18:03:29,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:29,448 INFO L225 Difference]: With dead ends: 43 [2018-11-28 18:03:29,449 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:03:29,449 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 18:03:29,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:03:29,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:03:29,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:03:29,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:03:29,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-11-28 18:03:29,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:29,451 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:03:29,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:03:29,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:03:29,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:03:29,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:03:29,657 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 99 108) the Hoare annotation is: true [2018-11-28 18:03:29,657 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 99 108) no Hoare annotation was computed. [2018-11-28 18:03:29,657 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 99 108) no Hoare annotation was computed. [2018-11-28 18:03:29,658 INFO L448 ceAbstractionStarter]: For program point L101-1(lines 101 105) no Hoare annotation was computed. [2018-11-28 18:03:29,658 INFO L444 ceAbstractionStarter]: At program point L101-2(lines 101 105) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-28 18:03:29,658 INFO L448 ceAbstractionStarter]: For program point L101-3(lines 101 105) no Hoare annotation was computed. [2018-11-28 18:03:29,658 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:29,658 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:29,659 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:29,659 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-28 18:03:29,659 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 72) no Hoare annotation was computed. [2018-11-28 18:03:29,659 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 89) no Hoare annotation was computed. [2018-11-28 18:03:29,659 INFO L448 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-11-28 18:03:29,659 INFO L444 ceAbstractionStarter]: At program point L40-2(lines 40 44) the Hoare annotation is: (and (exists ((__ieee754_logf_~ix~0 (_ BitVec 32))) (and (bvslt __ieee754_logf_~ix~0 (_ bv2139095040 32)) (= |__ieee754_logf_#in~x| (fp ((_ extract 31 31) __ieee754_logf_~ix~0) ((_ extract 30 23) __ieee754_logf_~ix~0) ((_ extract 22 0) __ieee754_logf_~ix~0))))) (= |__ieee754_logf_#in~x| (fp ((_ extract 31 31) __ieee754_logf_~ix~0) ((_ extract 30 23) __ieee754_logf_~ix~0) ((_ extract 22 0) __ieee754_logf_~ix~0)))) [2018-11-28 18:03:29,660 INFO L451 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 20 96) the Hoare annotation is: true [2018-11-28 18:03:29,660 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 20 96) no Hoare annotation was computed. [2018-11-28 18:03:29,660 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 64) no Hoare annotation was computed. [2018-11-28 18:03:29,660 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-28 18:03:29,660 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: (= __ieee754_logf_~x |__ieee754_logf_#in~x|) [2018-11-28 18:03:29,660 INFO L448 ceAbstractionStarter]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2018-11-28 18:03:29,660 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 49 53) no Hoare annotation was computed. [2018-11-28 18:03:29,661 INFO L444 ceAbstractionStarter]: At program point L49-2(lines 49 53) the Hoare annotation is: (exists ((__ieee754_logf_~ix~0 (_ BitVec 32))) (and (bvslt __ieee754_logf_~ix~0 (_ bv2139095040 32)) (= |__ieee754_logf_#in~x| (fp ((_ extract 31 31) __ieee754_logf_~ix~0) ((_ extract 30 23) __ieee754_logf_~ix~0) ((_ extract 22 0) __ieee754_logf_~ix~0))))) [2018-11-28 18:03:29,661 INFO L448 ceAbstractionStarter]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2018-11-28 18:03:29,661 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 45) no Hoare annotation was computed. [2018-11-28 18:03:29,661 INFO L448 ceAbstractionStarter]: For program point L37-1(lines 37 45) no Hoare annotation was computed. [2018-11-28 18:03:29,661 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 71) no Hoare annotation was computed. [2018-11-28 18:03:29,661 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-11-28 18:03:29,661 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 20 96) no Hoare annotation was computed. [2018-11-28 18:03:29,662 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 94) no Hoare annotation was computed. [2018-11-28 18:03:29,662 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 63) no Hoare annotation was computed. [2018-11-28 18:03:29,662 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 95) no Hoare annotation was computed. [2018-11-28 18:03:29,662 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-11-28 18:03:29,662 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:29,662 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:03:29,662 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:29,662 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:29,663 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 110 125) the Hoare annotation is: true [2018-11-28 18:03:29,663 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2018-11-28 18:03:29,663 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 110 125) no Hoare annotation was computed. [2018-11-28 18:03:29,663 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-28 18:03:29,663 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 110 125) no Hoare annotation was computed. [2018-11-28 18:03:29,664 INFO L444 ceAbstractionStarter]: At program point L120(line 120) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-11-28 18:03:29,664 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 120 123) no Hoare annotation was computed. [2018-11-28 18:03:29,664 INFO L444 ceAbstractionStarter]: At program point L117(line 117) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-11-28 18:03:29,664 INFO L448 ceAbstractionStarter]: For program point L117-1(line 117) no Hoare annotation was computed. [2018-11-28 18:03:29,678 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,679 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,679 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,679 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,680 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,680 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,680 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,681 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,682 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,682 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,682 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,683 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,683 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,684 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,684 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,684 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:29 BoogieIcfgContainer [2018-11-28 18:03:29,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:29,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:29,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:29,687 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:29,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:58" (3/4) ... [2018-11-28 18:03:29,692 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:03:29,700 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-28 18:03:29,700 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:03:29,700 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-11-28 18:03:29,701 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:03:29,708 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2018-11-28 18:03:29,709 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-28 18:03:29,709 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 18:03:29,709 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 18:03:29,738 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-28 18:03:29,739 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 18:03:29,740 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_logf_~ix~0 : bv32 :: ~bvslt32(__ieee754_logf_~ix~0, 2139095040bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_logf_~ix~0[31:31], __ieee754_logf_~ix~0[30:23], __ieee754_logf_~ix~0[22:0])) && \old(x) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) [2018-11-28 18:03:29,740 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_logf_~ix~0 : bv32 :: ~bvslt32(__ieee754_logf_~ix~0, 2139095040bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_logf_~ix~0[31:31], __ieee754_logf_~ix~0[30:23], __ieee754_logf_~ix~0[22:0])) [2018-11-28 18:03:29,782 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:03:29,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:29,786 INFO L168 Benchmark]: Toolchain (without parser) took 45019.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 951.3 MB in the beginning and 881.6 MB in the end (delta: 69.7 MB). Peak memory consumption was 183.0 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:29,787 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:29,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 469.98 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 933.9 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:29,788 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.66 ms. Allocated memory is still 1.0 GB. Free memory is still 933.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:29,788 INFO L168 Benchmark]: Boogie Preprocessor took 128.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:29,796 INFO L168 Benchmark]: RCFGBuilder took 13146.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:29,796 INFO L168 Benchmark]: TraceAbstraction took 31114.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 881.6 MB in the end (delta: 190.9 MB). Peak memory consumption was 190.9 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:29,799 INFO L168 Benchmark]: Witness Printer took 97.84 ms. Allocated memory is still 1.1 GB. Free memory is still 881.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:29,807 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 469.98 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 933.9 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.66 ms. Allocated memory is still 1.0 GB. Free memory is still 933.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 128.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 13146.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 31114.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 881.6 MB in the end (delta: 190.9 MB). Peak memory consumption was 190.9 MB. Max. memory is 11.5 GB. * Witness Printer took 97.84 ms. Allocated memory is still 1.1 GB. Free memory is still 881.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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: 101]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 49]: Loop Invariant [2018-11-28 18:03:29,822 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,822 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,822 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,823 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,823 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,823 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,823 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,823 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_logf_~ix~0 : bv32 :: ~bvslt32(__ieee754_logf_~ix~0, 2139095040bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_logf_~ix~0[31:31], __ieee754_logf_~ix~0[30:23], __ieee754_logf_~ix~0[22:0])) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 40]: Loop Invariant [2018-11-28 18:03:29,826 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,826 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,827 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,827 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,827 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,827 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,828 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-11-28 18:03:29,828 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_logf_~ix~0 : bv32 :: ~bvslt32(__ieee754_logf_~ix~0, 2139095040bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_logf_~ix~0[31:31], __ieee754_logf_~ix~0[30:23], __ieee754_logf_~ix~0[22:0])) && \old(x) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. SAFE Result, 31.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 26.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 206 SDtfs, 78 SDslu, 696 SDs, 0 SdLazy, 210 SolverSat, 11 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 24.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 20 PreInvPairs, 26 NumberOfFragments, 83 HoareAnnotationTreeSize, 20 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 16 QuantifiedInterpolants, 16449 SizeOfPredicates, 14 NumberOfNonLiveVariables, 527 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...