./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0921_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_0921_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 86466cf5e99320b887fae6f726f2af775c2eaef8 ....................................................................................................................................................................................................................................................................................................... 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_0921_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 86466cf5e99320b887fae6f726f2af775c2eaef8 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:02:36,743 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:02:36,747 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:02:36,768 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:02:36,770 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:02:36,771 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:02:36,773 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:02:36,776 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:02:36,781 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:02:36,784 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:02:36,787 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:02:36,788 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:02:36,789 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:02:36,793 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:02:36,799 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:02:36,803 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:02:36,805 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:02:36,810 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:02:36,814 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:02:36,819 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:02:36,822 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:02:36,826 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:02:36,830 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:02:36,835 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:02:36,835 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:02:36,836 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:02:36,837 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:02:36,843 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:02:36,844 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:02:36,847 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:02:36,847 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:02:36,848 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:02:36,848 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:02:36,848 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:02:36,849 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:02:36,853 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:02:36,855 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:02:36,884 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:02:36,884 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:02:36,886 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:02:36,889 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:02:36,890 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:02:36,890 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:02:36,890 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:02:36,890 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:02:36,892 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:02:36,892 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:02:36,893 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:02:36,893 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:02:36,893 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:02:36,893 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:02:36,893 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:02:36,894 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:02:36,894 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:02:36,895 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:02:36,895 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:02:36,895 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:02:36,895 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:02:36,895 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:02:36,896 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:02:36,898 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:02:36,898 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:02:36,899 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:02:36,899 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:02:36,899 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:02:36,900 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:02:36,900 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:02:36,900 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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2018-11-28 18:02:36,971 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:02:36,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:02:36,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:02:36,997 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:02:36,997 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:02:36,998 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-11-28 18:02:37,071 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135877481/d52d0661accd48b0a09657ee8b676419/FLAG0b67535b5 [2018-11-28 18:02:37,572 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:02:37,573 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-11-28 18:02:37,587 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135877481/d52d0661accd48b0a09657ee8b676419/FLAG0b67535b5 [2018-11-28 18:02:37,911 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135877481/d52d0661accd48b0a09657ee8b676419 [2018-11-28 18:02:37,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:02:37,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:02:37,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:02:37,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:02:37,923 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:02:37,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:02:37" (1/1) ... [2018-11-28 18:02:37,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a15a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:37, skipping insertion in model container [2018-11-28 18:02:37,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:02:37" (1/1) ... [2018-11-28 18:02:37,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:02:37,964 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:02:38,276 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:02:38,284 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:02:38,365 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:02:38,396 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:02:38,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:38 WrapperNode [2018-11-28 18:02:38,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:02:38,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:02:38,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:02:38,398 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:02:38,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:38" (1/1) ... [2018-11-28 18:02:38,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:38" (1/1) ... [2018-11-28 18:02:38,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:02:38,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:02:38,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:02:38,516 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:02:38,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:38" (1/1) ... [2018-11-28 18:02:38,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:38" (1/1) ... [2018-11-28 18:02:38,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:38" (1/1) ... [2018-11-28 18:02:38,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:38" (1/1) ... [2018-11-28 18:02:38,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:38" (1/1) ... [2018-11-28 18:02:38,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:38" (1/1) ... [2018-11-28 18:02:38,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:38" (1/1) ... [2018-11-28 18:02:38,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:02:38,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:02:38,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:02:38,603 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:02:38,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:38" (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 18:02:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:02:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:02:38,681 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 18:02:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 18:02:38,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:02:38,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:02:38,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:02:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:02:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:02:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:02:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-28 18:02:38,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-28 18:02:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:02:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:02:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:02:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:02:39,339 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:02:39,339 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 18:02:39,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:39 BoogieIcfgContainer [2018-11-28 18:02:39,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:02:39,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:02:39,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:02:39,346 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:02:39,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:02:37" (1/3) ... [2018-11-28 18:02:39,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184719db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:02:39, skipping insertion in model container [2018-11-28 18:02:39,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:38" (2/3) ... [2018-11-28 18:02:39,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184719db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:02:39, skipping insertion in model container [2018-11-28 18:02:39,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:39" (3/3) ... [2018-11-28 18:02:39,352 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921_true-unreach-call.c [2018-11-28 18:02:39,365 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:02:39,373 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:02:39,391 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:02:39,431 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:02:39,432 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:02:39,432 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:02:39,432 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:02:39,433 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:02:39,433 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:02:39,434 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:02:39,434 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:02:39,434 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:02:39,458 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-28 18:02:39,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 18:02:39,468 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:39,469 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:02:39,472 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:39,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:39,478 INFO L82 PathProgramCache]: Analyzing trace with hash -2125295103, now seen corresponding path program 1 times [2018-11-28 18:02:39,480 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:02:39,480 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:02:39,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:02:39,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:39,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:02:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:39,678 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 18:02:39,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:39,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:02:39,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:02:39,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:02:39,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:02:39,705 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-28 18:02:39,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:02:39,730 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2018-11-28 18:02:39,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:02:39,731 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 18:02:39,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:02:39,743 INFO L225 Difference]: With dead ends: 78 [2018-11-28 18:02:39,743 INFO L226 Difference]: Without dead ends: 39 [2018-11-28 18:02:39,749 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 18:02:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-28 18:02:39,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-28 18:02:39,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-28 18:02:39,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2018-11-28 18:02:39,797 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 21 [2018-11-28 18:02:39,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:02:39,797 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2018-11-28 18:02:39,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:02:39,798 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2018-11-28 18:02:39,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 18:02:39,799 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:39,799 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 18:02:39,799 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:39,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:39,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1250768616, now seen corresponding path program 1 times [2018-11-28 18:02:39,800 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:02:39,800 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:02:39,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:02:39,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:39,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:02:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:02:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:02:39,915 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:02:39,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:02:39 BoogieIcfgContainer [2018-11-28 18:02:39,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:02:39,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:02:39,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:02:39,978 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:02:39,979 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:39" (3/4) ... [2018-11-28 18:02:39,983 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:02:39,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:02:39,984 INFO L168 Benchmark]: Toolchain (without parser) took 2068.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 67.6 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -54.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:39,986 INFO L168 Benchmark]: CDTParser took 0.15 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 18:02:39,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.98 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:39,988 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 67.6 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -118.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:39,989 INFO L168 Benchmark]: Boogie Preprocessor took 86.49 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:02:39,989 INFO L168 Benchmark]: RCFGBuilder took 736.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:39,990 INFO L168 Benchmark]: TraceAbstraction took 636.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:39,991 INFO L168 Benchmark]: Witness Printer took 5.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:02:39,995 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 478.98 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 117.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 67.6 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -118.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 86.49 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 736.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 636.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 124]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] 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; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450960, \old(Lg2_log)=6442450962, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450948, \old(Lg5_log)=6442450950, \old(Lg6_log)=6442450959, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450947, \old(ln2_lo_log)=6442450954, \old(two25_log)=6442450957, \old(zero_log)=6442450956, 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] [L119] float x = 0.0f / 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] [L120] 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] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __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] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] 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] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] 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] [L120] RET, EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450949, 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] [L120] float res = __ieee754_logf(x); [L123] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, 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] [L111] return x != x; VAL [\old(x)=6442450949, \result=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=6442450949, zero_log=0] [L123] RET, EXPR isnan_float(res) VAL [isnan_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=6442450949, two25_log=33554432, x=6442450952, zero_log=0] [L123] COND TRUE !isnan_float(res) [L124] __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=6442450949, two25_log=33554432, x=6442450952, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 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=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 18:02:42,496 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:02:42,501 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:02:42,519 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:02:42,520 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:02:42,521 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:02:42,528 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:02:42,530 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:02:42,535 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:02:42,539 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:02:42,540 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:02:42,541 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:02:42,542 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:02:42,543 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:02:42,546 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:02:42,547 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:02:42,548 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:02:42,551 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:02:42,555 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:02:42,560 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:02:42,561 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:02:42,565 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:02:42,570 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:02:42,570 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:02:42,570 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:02:42,571 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:02:42,575 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:02:42,576 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:02:42,576 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:02:42,579 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:02:42,579 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:02:42,579 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:02:42,581 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:02:42,581 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:02:42,583 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:02:42,583 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:02:42,583 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:02:42,608 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:02:42,610 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:02:42,611 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:02:42,611 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:02:42,611 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:02:42,611 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:02:42,613 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:02:42,614 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:02:42,614 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:02:42,614 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:02:42,614 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:02:42,614 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:02:42,614 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:02:42,616 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:02:42,616 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:02:42,617 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:02:42,617 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:02:42,617 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:02:42,617 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:02:42,617 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:02:42,617 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:02:42,620 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:02:42,620 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:02:42,620 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:02:42,620 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:02:42,621 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:02:42,621 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:02:42,621 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:02:42,622 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:02:42,622 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:02:42,622 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:02:42,622 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:02:42,622 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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2018-11-28 18:02:42,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:02:42,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:02:42,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:02:42,713 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:02:42,714 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:02:42,714 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-11-28 18:02:42,788 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f0a4dbd5/f885d781108b4f5f9ef92a2bfad6dbea/FLAG8f5ec9b2e [2018-11-28 18:02:43,275 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:02:43,276 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-11-28 18:02:43,285 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f0a4dbd5/f885d781108b4f5f9ef92a2bfad6dbea/FLAG8f5ec9b2e [2018-11-28 18:02:43,631 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f0a4dbd5/f885d781108b4f5f9ef92a2bfad6dbea [2018-11-28 18:02:43,636 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:02:43,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:02:43,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:02:43,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:02:43,644 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:02:43,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:02:43" (1/1) ... [2018-11-28 18:02:43,649 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 06:02:43, skipping insertion in model container [2018-11-28 18:02:43,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:02:43" (1/1) ... [2018-11-28 18:02:43,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:02:43,697 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:02:44,002 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:02:44,018 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:02:44,072 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:02:44,118 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:02:44,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44 WrapperNode [2018-11-28 18:02:44,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:02:44,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:02:44,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:02:44,121 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:02:44,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44" (1/1) ... [2018-11-28 18:02:44,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44" (1/1) ... [2018-11-28 18:02:44,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:02:44,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:02:44,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:02:44,171 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:02:44,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44" (1/1) ... [2018-11-28 18:02:44,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44" (1/1) ... [2018-11-28 18:02:44,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44" (1/1) ... [2018-11-28 18:02:44,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44" (1/1) ... [2018-11-28 18:02:44,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44" (1/1) ... [2018-11-28 18:02:44,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44" (1/1) ... [2018-11-28 18:02:44,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44" (1/1) ... [2018-11-28 18:02:44,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:02:44,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:02:44,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:02:44,335 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:02:44,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44" (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 18:02:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:02:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 18:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 18:02:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 18:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:02:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:02:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:02:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-28 18:02:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-28 18:02:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:02:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:02:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:02:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 18:02:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:02:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:02:46,741 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:02:57,469 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:02:57,599 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:02:57,600 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 18:02:57,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:57 BoogieIcfgContainer [2018-11-28 18:02:57,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:02:57,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:02:57,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:02:57,606 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:02:57,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:02:43" (1/3) ... [2018-11-28 18:02:57,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdada50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:02:57, skipping insertion in model container [2018-11-28 18:02:57,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:02:44" (2/3) ... [2018-11-28 18:02:57,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdada50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:02:57, skipping insertion in model container [2018-11-28 18:02:57,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:57" (3/3) ... [2018-11-28 18:02:57,610 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921_true-unreach-call.c [2018-11-28 18:02:57,621 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:02:57,629 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:02:57,648 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:02:57,681 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:02:57,682 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:02:57,683 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:02:57,683 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:02:57,683 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:02:57,683 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:02:57,684 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:02:57,684 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:02:57,684 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:02:57,704 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-28 18:02:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 18:02:57,711 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:57,712 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] [2018-11-28 18:02:57,715 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:57,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:57,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1279650342, now seen corresponding path program 1 times [2018-11-28 18:02:57,727 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:02:57,728 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 18:02:57,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:58,119 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:02:58,142 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 18:02:58,144 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:02:58,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:58,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:02:58,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:02:58,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:02:58,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:02:58,180 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-28 18:02:58,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:02:58,206 INFO L93 Difference]: Finished difference Result 76 states and 110 transitions. [2018-11-28 18:02:58,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:02:58,210 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-28 18:02:58,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:02:58,225 INFO L225 Difference]: With dead ends: 76 [2018-11-28 18:02:58,227 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 18:02:58,230 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:02:58,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 18:02:58,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-28 18:02:58,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 18:02:58,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2018-11-28 18:02:58,268 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 20 [2018-11-28 18:02:58,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:02:58,268 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2018-11-28 18:02:58,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:02:58,269 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2018-11-28 18:02:58,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 18:02:58,270 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:58,270 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:02:58,270 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:58,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:58,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1035286437, now seen corresponding path program 1 times [2018-11-28 18:02:58,271 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:02:58,271 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-28 18:02:58,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 18:02:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:58,580 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:02:58,764 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 18:02:58,764 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:02:58,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:58,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:02:58,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:02:58,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:02:58,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:02:58,783 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand 6 states. [2018-11-28 18:03:02,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:02,980 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-11-28 18:03:03,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:03:03,130 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-28 18:03:03,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:03,134 INFO L225 Difference]: With dead ends: 52 [2018-11-28 18:03:03,134 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 18:03:03,135 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:03:03,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 18:03:03,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-11-28 18:03:03,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 18:03:03,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2018-11-28 18:03:03,144 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 21 [2018-11-28 18:03:03,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:03,145 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2018-11-28 18:03:03,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:03:03,145 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2018-11-28 18:03:03,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 18:03:03,146 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:03,146 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 18:03:03,147 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:03,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:03,147 INFO L82 PathProgramCache]: Analyzing trace with hash -576214872, now seen corresponding path program 1 times [2018-11-28 18:03:03,148 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:03,148 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 18:03:03,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:03,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:06,568 WARN L180 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-28 18:03:06,925 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 3 [2018-11-28 18:03:06,929 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 18:03:06,929 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:06,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:06,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 18:03:06,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 18:03:06,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 18:03:06,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-28 18:03:06,944 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand 10 states. [2018-11-28 18:03:09,487 WARN L180 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-28 18:03:23,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:23,479 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2018-11-28 18:03:23,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 18:03:23,481 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-11-28 18:03:23,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:23,483 INFO L225 Difference]: With dead ends: 51 [2018-11-28 18:03:23,483 INFO L226 Difference]: Without dead ends: 44 [2018-11-28 18:03:23,483 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-28 18:03:23,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-28 18:03:23,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-11-28 18:03:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 18:03:23,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-11-28 18:03:23,496 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 22 [2018-11-28 18:03:23,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:23,496 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-11-28 18:03:23,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 18:03:23,498 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-11-28 18:03:23,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 18:03:23,499 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:23,499 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 18:03:23,499 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:23,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:23,500 INFO L82 PathProgramCache]: Analyzing trace with hash -15952265, now seen corresponding path program 1 times [2018-11-28 18:03:23,500 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:23,500 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 18:03:23,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:23,587 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:23,950 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-28 18:03:24,280 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 18:03:24,280 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:24,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:24,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 18:03:24,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 18:03:24,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 18:03:24,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:03:24,304 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 9 states. [2018-11-28 18:03:24,808 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 18:03:36,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:36,231 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2018-11-28 18:03:36,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:03:36,232 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-28 18:03:36,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:36,233 INFO L225 Difference]: With dead ends: 47 [2018-11-28 18:03:36,233 INFO L226 Difference]: Without dead ends: 40 [2018-11-28 18:03:36,234 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 18:03:36,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-28 18:03:36,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2018-11-28 18:03:36,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 18:03:36,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-11-28 18:03:36,243 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 23 [2018-11-28 18:03:36,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:36,243 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-11-28 18:03:36,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 18:03:36,244 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-11-28 18:03:36,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 18:03:36,245 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:36,246 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] [2018-11-28 18:03:36,246 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:36,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:36,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1246361610, now seen corresponding path program 1 times [2018-11-28 18:03:36,247 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:36,247 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 18:03:36,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:36,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:36,519 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 18:03:36,520 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:36,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:36,531 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:03:36,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:03:36,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:03:36,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:03:36,532 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-11-28 18:03:39,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:39,487 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2018-11-28 18:03:39,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 18:03:39,645 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-11-28 18:03:39,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:39,646 INFO L225 Difference]: With dead ends: 40 [2018-11-28 18:03:39,646 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:03:39,646 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-28 18:03:39,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:03:39,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:03:39,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:03:39,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:03:39,647 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-28 18:03:39,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:39,648 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:03:39,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:03:39,648 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:03:39,648 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:03:39,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:03:39,878 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 16 [2018-11-28 18:03:39,988 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2018-11-28 18:03:40,145 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 111) no Hoare annotation was computed. [2018-11-28 18:03:40,146 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 111) the Hoare annotation is: true [2018-11-28 18:03:40,146 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 111) no Hoare annotation was computed. [2018-11-28 18:03:40,146 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:40,146 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:40,146 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:40,146 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-11-28 18:03:40,147 INFO L448 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-11-28 18:03:40,147 INFO L444 ceAbstractionStarter]: At program point L52-2(lines 52 56) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (bvslt __ieee754_logf_~ix~1 (_ bv2139095040 32)) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32))))))) [2018-11-28 18:03:40,147 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-11-28 18:03:40,147 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-11-28 18:03:40,147 INFO L444 ceAbstractionStarter]: At program point L36-2(lines 36 40) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= __ieee754_logf_~x |__ieee754_logf_#in~x|)) [2018-11-28 18:03:40,147 INFO L448 ceAbstractionStarter]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2018-11-28 18:03:40,147 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-11-28 18:03:40,148 INFO L444 ceAbstractionStarter]: At program point L61-2(lines 61 65) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (bvslt __ieee754_logf_~ix~1 (_ bv2139095040 32)) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32)))))) [2018-11-28 18:03:40,148 INFO L451 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 32 108) the Hoare annotation is: true [2018-11-28 18:03:40,148 INFO L448 ceAbstractionStarter]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2018-11-28 18:03:40,148 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 32 108) no Hoare annotation was computed. [2018-11-28 18:03:40,148 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-11-28 18:03:40,148 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-11-28 18:03:40,149 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-11-28 18:03:40,149 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-28 18:03:40,149 INFO L448 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-11-28 18:03:40,149 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-11-28 18:03:40,149 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-11-28 18:03:40,149 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 32 108) no Hoare annotation was computed. [2018-11-28 18:03:40,149 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-11-28 18:03:40,150 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-11-28 18:03:40,150 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-11-28 18:03:40,150 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:40,150 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~zero_log~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) [2018-11-28 18:03:40,150 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:40,150 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:40,151 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 113 129) the Hoare annotation is: true [2018-11-28 18:03:40,151 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 113 129) no Hoare annotation was computed. [2018-11-28 18:03:40,151 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-28 18:03:40,151 INFO L444 ceAbstractionStarter]: At program point L123(line 123) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (or (not (= .cse0 ~zero_log~0)) (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse1 .cse1) .cse0)) (= main_~x~0 .cse1))))) [2018-11-28 18:03:40,151 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 123 126) no Hoare annotation was computed. [2018-11-28 18:03:40,151 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 113 129) no Hoare annotation was computed. [2018-11-28 18:03:40,152 INFO L444 ceAbstractionStarter]: At program point L120(line 120) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) [2018-11-28 18:03:40,152 INFO L448 ceAbstractionStarter]: For program point L120-1(line 120) no Hoare annotation was computed. [2018-11-28 18:03:40,152 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2018-11-28 18:03:40,161 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:40,163 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,163 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,163 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,163 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,164 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,168 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:40,169 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,169 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,169 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,169 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,170 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,171 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:40,172 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:40,172 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:40,173 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,173 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,173 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,173 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,174 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,174 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:40,175 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,175 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,175 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,175 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,176 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:40 BoogieIcfgContainer [2018-11-28 18:03:40,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:40,179 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:40,179 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:40,179 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:40,180 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:02:57" (3/4) ... [2018-11-28 18:03:40,184 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:03:40,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-28 18:03:40,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:03:40,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-11-28 18:03:40,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:03:40,200 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2018-11-28 18:03:40,201 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-28 18:03:40,201 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 18:03:40,201 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 18:03:40,231 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) [2018-11-28 18:03:40,232 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x) && (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32))) [2018-11-28 18:03:40,232 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) [2018-11-28 18:03:40,275 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:03:40,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:40,276 INFO L168 Benchmark]: Toolchain (without parser) took 56639.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 951.4 MB in the beginning and 828.8 MB in the end (delta: 122.5 MB). Peak memory consumption was 213.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:40,277 INFO L168 Benchmark]: CDTParser took 0.15 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 18:03:40,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.57 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:40,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.61 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:40,279 INFO L168 Benchmark]: Boogie Preprocessor took 163.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:40,280 INFO L168 Benchmark]: RCFGBuilder took 13265.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:40,280 INFO L168 Benchmark]: TraceAbstraction took 42576.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 835.8 MB in the end (delta: 212.5 MB). Peak memory consumption was 212.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:40,281 INFO L168 Benchmark]: Witness Printer took 96.37 ms. Allocated memory is still 1.1 GB. Free memory is still 828.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:40,284 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 480.57 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.61 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 163.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 13265.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 42576.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 835.8 MB in the end (delta: 212.5 MB). Peak memory consumption was 212.5 MB. Max. memory is 11.5 GB. * Witness Printer took 96.37 ms. Allocated memory is still 1.1 GB. Free memory is still 828.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: 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: 61]: Loop Invariant [2018-11-28 18:03:40,293 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:40,293 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,293 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,293 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,293 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,293 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,294 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:40,294 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,294 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,294 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,295 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,295 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) - InvariantResult [Line: 36]: Loop Invariant [2018-11-28 18:03:40,295 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:40,295 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) - InvariantResult [Line: 52]: Loop Invariant [2018-11-28 18:03:40,296 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:40,296 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,296 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,296 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,296 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,297 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,297 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:40,297 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,297 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,297 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,298 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-28 18:03:40,298 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x) && (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. SAFE Result, 42.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 36.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 196 SDtfs, 103 SDslu, 684 SDs, 0 SdLazy, 228 SolverSat, 15 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 32.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 21 NumberOfFragments, 124 HoareAnnotationTreeSize, 15 FomulaSimplifications, 86 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 85 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 12 QuantifiedInterpolants, 15843 SizeOfPredicates, 15 NumberOfNonLiveVariables, 452 ConjunctsInSsa, 39 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...