./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0833_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_0833_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 03f3c06db3ef41593c24334f9583c5e77016ee88 ................................................................................................................................................................................................................................................................................................................... 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_0833_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 03f3c06db3ef41593c24334f9583c5e77016ee88 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 18:01:09,191 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:01:09,193 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:01:09,208 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:01:09,208 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:01:09,211 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:01:09,216 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:01:09,219 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:01:09,221 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:01:09,224 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:01:09,226 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:01:09,228 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:01:09,229 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:01:09,232 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:01:09,239 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:01:09,243 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:01:09,244 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:01:09,250 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:01:09,255 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:01:09,257 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:01:09,258 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:01:09,262 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:01:09,267 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:01:09,267 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:01:09,267 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:01:09,268 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:01:09,270 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:01:09,271 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:01:09,272 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:01:09,273 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:01:09,273 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:01:09,274 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:01:09,275 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:01:09,275 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:01:09,276 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:01:09,277 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:01:09,277 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:01:09,293 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:01:09,294 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:01:09,294 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:01:09,295 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:01:09,295 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:01:09,296 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:01:09,296 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:01:09,297 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:01:09,297 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:01:09,297 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:01:09,297 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:01:09,297 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:01:09,297 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:01:09,298 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:01:09,298 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:01:09,298 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:01:09,298 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:01:09,298 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:01:09,298 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:01:09,300 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:01:09,301 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:01:09,301 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:01:09,301 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:01:09,301 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:01:09,301 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:01:09,301 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:01:09,302 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:01:09,303 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:01:09,303 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:01:09,303 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:01:09,303 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 -> 03f3c06db3ef41593c24334f9583c5e77016ee88 [2018-11-28 18:01:09,345 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:01:09,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:01:09,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:01:09,372 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:01:09,372 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:01:09,373 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-11-28 18:01:09,446 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/820e10fcb/f92b23fb1c79421296d799e4645a31b9/FLAG07fb57483 [2018-11-28 18:01:09,979 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:01:09,980 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-11-28 18:01:09,988 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/820e10fcb/f92b23fb1c79421296d799e4645a31b9/FLAG07fb57483 [2018-11-28 18:01:10,305 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/820e10fcb/f92b23fb1c79421296d799e4645a31b9 [2018-11-28 18:01:10,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:01:10,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:01:10,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:01:10,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:01:10,315 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:01:10,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:01:10" (1/1) ... [2018-11-28 18:01:10,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14aa9406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10, skipping insertion in model container [2018-11-28 18:01:10,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:01:10" (1/1) ... [2018-11-28 18:01:10,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:01:10,360 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:01:10,606 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:01:10,617 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:01:10,693 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:01:10,727 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:01:10,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10 WrapperNode [2018-11-28 18:01:10,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:01:10,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:01:10,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:01:10,729 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:01:10,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10" (1/1) ... [2018-11-28 18:01:10,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10" (1/1) ... [2018-11-28 18:01:10,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:01:10,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:01:10,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:01:10,760 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:01:10,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10" (1/1) ... [2018-11-28 18:01:10,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10" (1/1) ... [2018-11-28 18:01:10,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10" (1/1) ... [2018-11-28 18:01:10,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10" (1/1) ... [2018-11-28 18:01:10,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10" (1/1) ... [2018-11-28 18:01:10,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10" (1/1) ... [2018-11-28 18:01:10,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10" (1/1) ... [2018-11-28 18:01:10,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:01:10,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:01:10,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:01:10,900 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:01:10,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10" (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 18:01:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-11-28 18:01:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-11-28 18:01:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:01:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:01:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:01:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:01:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:01:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:01:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:01:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:01:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:01:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:01:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:01:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-11-28 18:01:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-28 18:01:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-28 18:01:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:01:11,646 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:01:11,646 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-28 18:01:11,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:01:11 BoogieIcfgContainer [2018-11-28 18:01:11,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:01:11,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:01:11,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:01:11,657 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:01:11,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:01:10" (1/3) ... [2018-11-28 18:01:11,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c4adcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:01:11, skipping insertion in model container [2018-11-28 18:01:11,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:10" (2/3) ... [2018-11-28 18:01:11,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c4adcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:01:11, skipping insertion in model container [2018-11-28 18:01:11,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:01:11" (3/3) ... [2018-11-28 18:01:11,662 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833_true-unreach-call.c [2018-11-28 18:01:11,670 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:01:11,677 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:01:11,695 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:01:11,729 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:01:11,730 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:01:11,730 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:01:11,730 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:01:11,731 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:01:11,732 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:01:11,732 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:01:11,732 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:01:11,732 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:01:11,754 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-11-28 18:01:11,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 18:01:11,760 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:01:11,761 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:01:11,764 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:01:11,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:01:11,770 INFO L82 PathProgramCache]: Analyzing trace with hash -282242941, now seen corresponding path program 1 times [2018-11-28 18:01:11,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:01:11,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:01:11,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:01:11,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:01:11,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:01:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:01:11,952 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 18:01:11,955 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:01:11,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:01:11,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:01:11,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:01:11,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:01:11,981 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-11-28 18:01:12,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:01:12,009 INFO L93 Difference]: Finished difference Result 100 states and 149 transitions. [2018-11-28 18:01:12,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:01:12,010 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-28 18:01:12,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:01:12,021 INFO L225 Difference]: With dead ends: 100 [2018-11-28 18:01:12,021 INFO L226 Difference]: Without dead ends: 50 [2018-11-28 18:01:12,025 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 18:01:12,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-28 18:01:12,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-11-28 18:01:12,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-28 18:01:12,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-11-28 18:01:12,072 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2018-11-28 18:01:12,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:01:12,072 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-11-28 18:01:12,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:01:12,072 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-11-28 18:01:12,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 18:01:12,074 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:01:12,075 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:01:12,075 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:01:12,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:01:12,076 INFO L82 PathProgramCache]: Analyzing trace with hash 947168922, now seen corresponding path program 1 times [2018-11-28 18:01:12,076 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:01:12,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:01:12,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:01:12,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:01:12,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:01:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:01:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:01:12,236 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:01:12,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:01:12 BoogieIcfgContainer [2018-11-28 18:01:12,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:01:12,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:01:12,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:01:12,316 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:01:12,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:01:11" (3/4) ... [2018-11-28 18:01:12,325 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:01:12,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:01:12,326 INFO L168 Benchmark]: Toolchain (without parser) took 2016.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -108.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:01:12,331 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:01:12,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.13 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 18:01:12,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.80 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 18:01:12,335 INFO L168 Benchmark]: Boogie Preprocessor took 139.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:01:12,337 INFO L168 Benchmark]: RCFGBuilder took 750.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:01:12,338 INFO L168 Benchmark]: TraceAbstraction took 662.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:01:12,340 INFO L168 Benchmark]: Witness Printer took 10.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:01:12,348 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 417.13 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 30.80 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 139.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 750.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 662.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Witness Printer took 10.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 131]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 130, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 47. Possible FailurePath: [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [\old(halF_exp)=19, \old(halF_exp)=31, \old(huge_exp)=13, \old(invln2_exp)=15, \old(ln2HI_exp)=9, \old(ln2HI_exp)=23, \old(ln2LO_exp)=25, \old(ln2LO_exp)=30, \old(one_exp)=32, \old(P1_exp)=18, \old(P2_exp)=21, \old(P3_exp)=27, \old(P4_exp)=29, \old(P5_exp)=28, \old(twom100_exp)=10, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L126] float x = -1.0f / 0.0f; VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L127] CALL, EXPR __ieee754_expf(x) VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L34] float y, hi, lo, c, t; [L35] __int32_t k = 0, xsb, sx; [L36] __uint32_t hx; VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (sx) = gf_u.word [L43] xsb = (sx >> 31) & 1 [L44] hx = sx & 0x7fffffff VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=3, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L46] COND TRUE ((hx) > 0x7f800000L) [L47] return x + x; VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, hx=2139095041, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=3, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L127] RET, EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=14, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L127] float res = __ieee754_expf(x); [L130] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=14, res == 0.0f && __signbit_float(res) == 0=0, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L130] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L131] __VERIFIER_error() VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=14, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 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=54occurred 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, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 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 18:01:14,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:01:14,782 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:01:14,804 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:01:14,804 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:01:14,806 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:01:14,807 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:01:14,811 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:01:14,813 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:01:14,814 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:01:14,817 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:01:14,817 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:01:14,818 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:01:14,819 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:01:14,826 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:01:14,830 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:01:14,831 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:01:14,837 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:01:14,840 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:01:14,841 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:01:14,842 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:01:14,843 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:01:14,847 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:01:14,850 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:01:14,850 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:01:14,851 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:01:14,853 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:01:14,855 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:01:14,858 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:01:14,861 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:01:14,863 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:01:14,864 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:01:14,864 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:01:14,864 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:01:14,867 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:01:14,869 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:01:14,869 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:01:14,898 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:01:14,899 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:01:14,900 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:01:14,904 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:01:14,905 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:01:14,906 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:01:14,906 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:01:14,907 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:01:14,907 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:01:14,907 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:01:14,907 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:01:14,907 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:01:14,908 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:01:14,908 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:01:14,908 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:01:14,908 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:01:14,908 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:01:14,908 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:01:14,911 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:01:14,912 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:01:14,912 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:01:14,912 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:01:14,912 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:01:14,912 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:01:14,914 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:01:14,914 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:01:14,914 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:01:14,914 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:01:14,914 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:01:14,915 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:01:14,916 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:01:14,916 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:01:14,916 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 -> 03f3c06db3ef41593c24334f9583c5e77016ee88 [2018-11-28 18:01:14,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:01:14,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:01:14,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:01:15,000 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:01:15,001 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:01:15,002 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-11-28 18:01:15,074 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6c6e2c5/d48e649fe15440968549f3f9534e476f/FLAGf5e81358e [2018-11-28 18:01:15,536 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:01:15,536 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-11-28 18:01:15,545 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6c6e2c5/d48e649fe15440968549f3f9534e476f/FLAGf5e81358e [2018-11-28 18:01:15,901 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6c6e2c5/d48e649fe15440968549f3f9534e476f [2018-11-28 18:01:15,905 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:01:15,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:01:15,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:01:15,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:01:15,912 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:01:15,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:01:15" (1/1) ... [2018-11-28 18:01:15,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f70fd5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:15, skipping insertion in model container [2018-11-28 18:01:15,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:01:15" (1/1) ... [2018-11-28 18:01:15,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:01:15,955 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:01:16,245 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:01:16,266 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:01:16,354 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:01:16,404 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:01:16,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:16 WrapperNode [2018-11-28 18:01:16,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:01:16,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:01:16,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:01:16,406 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:01:16,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:16" (1/1) ... [2018-11-28 18:01:16,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:16" (1/1) ... [2018-11-28 18:01:16,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:01:16,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:01:16,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:01:16,507 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:01:16,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:16" (1/1) ... [2018-11-28 18:01:16,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:16" (1/1) ... [2018-11-28 18:01:16,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:16" (1/1) ... [2018-11-28 18:01:16,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:16" (1/1) ... [2018-11-28 18:01:16,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:16" (1/1) ... [2018-11-28 18:01:16,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:16" (1/1) ... [2018-11-28 18:01:16,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:16" (1/1) ... [2018-11-28 18:01:16,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:01:16,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:01:16,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:01:16,576 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:01:16,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:16" (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 18:01:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-11-28 18:01:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-11-28 18:01:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-11-28 18:01:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:01:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:01:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 18:01:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:01:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:01:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:01:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:01:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:01:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:01:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 18:01:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-28 18:01:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-28 18:01:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:01:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:01:16,915 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:01:25,490 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:01:25,560 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:01:25,708 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:01:25,840 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:01:25,874 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:01:25,874 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-28 18:01:25,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:01:25 BoogieIcfgContainer [2018-11-28 18:01:25,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:01:25,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:01:25,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:01:25,882 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:01:25,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:01:15" (1/3) ... [2018-11-28 18:01:25,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa740e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:01:25, skipping insertion in model container [2018-11-28 18:01:25,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:01:16" (2/3) ... [2018-11-28 18:01:25,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa740e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:01:25, skipping insertion in model container [2018-11-28 18:01:25,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:01:25" (3/3) ... [2018-11-28 18:01:25,889 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833_true-unreach-call.c [2018-11-28 18:01:25,902 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:01:25,912 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:01:25,930 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:01:25,961 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:01:25,962 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:01:25,962 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:01:25,962 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:01:25,962 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:01:25,962 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:01:25,962 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:01:25,963 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:01:25,963 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:01:25,981 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-11-28 18:01:25,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 18:01:25,986 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:01:25,987 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:01:25,990 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:01:25,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:01:25,996 INFO L82 PathProgramCache]: Analyzing trace with hash -282242941, now seen corresponding path program 1 times [2018-11-28 18:01:26,002 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:01:26,003 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 18:01:26,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:01:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:01:26,181 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:01:26,217 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 18:01:26,218 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:01:26,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:01:26,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:01:26,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:01:26,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:01:26,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:01:26,272 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-11-28 18:01:26,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:01:26,315 INFO L93 Difference]: Finished difference Result 100 states and 149 transitions. [2018-11-28 18:01:26,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:01:26,317 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-28 18:01:26,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:01:26,331 INFO L225 Difference]: With dead ends: 100 [2018-11-28 18:01:26,334 INFO L226 Difference]: Without dead ends: 50 [2018-11-28 18:01:26,339 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 18:01:26,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-28 18:01:26,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-11-28 18:01:26,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-28 18:01:26,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-11-28 18:01:26,401 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2018-11-28 18:01:26,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:01:26,402 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-11-28 18:01:26,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:01:26,402 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-11-28 18:01:26,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 18:01:26,406 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:01:26,406 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:01:26,407 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:01:26,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:01:26,407 INFO L82 PathProgramCache]: Analyzing trace with hash 947168922, now seen corresponding path program 1 times [2018-11-28 18:01:26,409 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:01:26,410 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 18:01:26,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:01:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:01:26,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:01:27,053 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 18:01:27,054 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:01:27,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:01:27,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:01:27,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:01:27,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:01:27,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:01:27,079 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 7 states. [2018-11-28 18:01:38,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:01:38,877 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2018-11-28 18:01:38,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:01:38,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-11-28 18:01:38,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:01:38,967 INFO L225 Difference]: With dead ends: 70 [2018-11-28 18:01:38,967 INFO L226 Difference]: Without dead ends: 55 [2018-11-28 18:01:38,969 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:01:38,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-28 18:01:38,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-11-28 18:01:38,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-28 18:01:38,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2018-11-28 18:01:38,987 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 18 [2018-11-28 18:01:38,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:01:38,988 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2018-11-28 18:01:38,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:01:38,988 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2018-11-28 18:01:38,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 18:01:38,992 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:01:38,993 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 18:01:38,994 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:01:38,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:01:38,995 INFO L82 PathProgramCache]: Analyzing trace with hash 413888862, now seen corresponding path program 1 times [2018-11-28 18:01:38,996 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:01:38,996 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 18:01:39,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:01:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:01:39,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:01:39,565 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 18:01:39,565 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:01:39,583 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:01:39,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:01:39,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:01:39,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:01:39,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:01:39,585 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2018-11-28 18:01:49,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:01:49,069 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2018-11-28 18:01:49,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:01:49,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-28 18:01:49,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:01:49,147 INFO L225 Difference]: With dead ends: 70 [2018-11-28 18:01:49,147 INFO L226 Difference]: Without dead ends: 55 [2018-11-28 18:01:49,148 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:01:49,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-28 18:01:49,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-11-28 18:01:49,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-28 18:01:49,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2018-11-28 18:01:49,157 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 20 [2018-11-28 18:01:49,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:01:49,157 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2018-11-28 18:01:49,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:01:49,158 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2018-11-28 18:01:49,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 18:01:49,158 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:01:49,159 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 18:01:49,160 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:01:49,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:01:49,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1852708709, now seen corresponding path program 1 times [2018-11-28 18:01:49,161 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:01:49,161 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 18:01:49,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:01:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:01:49,307 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:01:49,468 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 18:01:49,468 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:01:49,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:01:49,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:01:49,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:01:49,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:01:49,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:01:49,485 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 7 states. [2018-11-28 18:01:57,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:01:57,815 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2018-11-28 18:01:57,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:01:57,898 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-28 18:01:57,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:01:57,900 INFO L225 Difference]: With dead ends: 71 [2018-11-28 18:01:57,900 INFO L226 Difference]: Without dead ends: 55 [2018-11-28 18:01:57,901 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:01:57,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-28 18:01:57,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-11-28 18:01:57,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-28 18:01:57,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-11-28 18:01:57,909 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 21 [2018-11-28 18:01:57,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:01:57,909 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-11-28 18:01:57,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:01:57,909 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-11-28 18:01:57,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 18:01:57,910 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:01:57,910 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 18:01:57,912 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:01:57,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:01:57,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1043362083, now seen corresponding path program 1 times [2018-11-28 18:01:57,912 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:01:57,912 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 18:01:57,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:01:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:01:58,034 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:01:58,125 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 18:01:58,126 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:01:58,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:01:58,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:01:58,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:01:58,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:01:58,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:01:58,143 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 6 states. [2018-11-28 18:01:59,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:01:59,843 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2018-11-28 18:01:59,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 18:01:59,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-28 18:01:59,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:01:59,845 INFO L225 Difference]: With dead ends: 57 [2018-11-28 18:01:59,845 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 18:01:59,845 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:01:59,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 18:01:59,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-11-28 18:01:59,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 18:01:59,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-11-28 18:01:59,856 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 21 [2018-11-28 18:01:59,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:01:59,856 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-11-28 18:01:59,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:01:59,857 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-11-28 18:01:59,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:01:59,858 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:01:59,858 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:01:59,859 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:01:59,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:01:59,859 INFO L82 PathProgramCache]: Analyzing trace with hash 2052493881, now seen corresponding path program 1 times [2018-11-28 18:01:59,860 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:01:59,860 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-28 18:01:59,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:00,784 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:02:00,955 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 18:02:00,955 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:02:00,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:00,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:02:00,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:02:00,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:02:00,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:02:00,977 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 7 states. [2018-11-28 18:02:11,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:02:11,957 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2018-11-28 18:02:12,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:02:12,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-28 18:02:12,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:02:12,038 INFO L225 Difference]: With dead ends: 84 [2018-11-28 18:02:12,038 INFO L226 Difference]: Without dead ends: 52 [2018-11-28 18:02:12,039 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:02:12,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-28 18:02:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-11-28 18:02:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-28 18:02:12,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-11-28 18:02:12,046 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 25 [2018-11-28 18:02:12,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:02:12,046 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-11-28 18:02:12,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:02:12,046 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-11-28 18:02:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 18:02:12,047 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:12,048 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:02:12,048 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:12,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:12,048 INFO L82 PathProgramCache]: Analyzing trace with hash -68429369, now seen corresponding path program 1 times [2018-11-28 18:02:12,051 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:02:12,051 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-28 18:02:12,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:13,190 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:02:13,354 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 18:02:13,355 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:02:13,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:13,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:02:13,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:02:13,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:02:13,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:02:13,384 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 7 states. [2018-11-28 18:02:21,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:02:21,991 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2018-11-28 18:02:22,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:02:22,082 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 18:02:22,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:02:22,083 INFO L225 Difference]: With dead ends: 63 [2018-11-28 18:02:22,084 INFO L226 Difference]: Without dead ends: 30 [2018-11-28 18:02:22,084 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 18:02:22,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-28 18:02:22,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-28 18:02:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-28 18:02:22,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2018-11-28 18:02:22,089 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 26 [2018-11-28 18:02:22,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:02:22,089 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2018-11-28 18:02:22,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:02:22,090 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2018-11-28 18:02:22,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 18:02:22,091 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:02:22,092 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] [2018-11-28 18:02:22,092 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:02:22,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:02:22,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1730002734, now seen corresponding path program 1 times [2018-11-28 18:02:22,093 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:02:22,093 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-28 18:02:22,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:02:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:02:22,241 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:02:22,568 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 18:02:22,568 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:02:22,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:02:22,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 18:02:22,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 18:02:22,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 18:02:22,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:02:22,581 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 11 states. [2018-11-28 18:02:23,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:02:23,070 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-11-28 18:02:23,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 18:02:23,071 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2018-11-28 18:02:23,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:02:23,072 INFO L225 Difference]: With dead ends: 30 [2018-11-28 18:02:23,072 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:02:23,073 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-11-28 18:02:23,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:02:23,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:02:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:02:23,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:02:23,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-11-28 18:02:23,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:02:23,074 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:02:23,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 18:02:23,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:02:23,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:02:23,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:02:23,254 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2018-11-28 18:02:23,254 INFO L448 ceAbstractionStarter]: For program point L94-1(lines 94 98) no Hoare annotation was computed. [2018-11-28 18:02:23,254 INFO L444 ceAbstractionStarter]: At program point L94-2(lines 94 98) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-11-28 18:02:23,254 INFO L448 ceAbstractionStarter]: For program point L86(lines 86 90) no Hoare annotation was computed. [2018-11-28 18:02:23,255 INFO L448 ceAbstractionStarter]: For program point L86-1(lines 79 92) no Hoare annotation was computed. [2018-11-28 18:02:23,255 INFO L448 ceAbstractionStarter]: For program point L86-2(lines 86 90) no Hoare annotation was computed. [2018-11-28 18:02:23,255 INFO L448 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 33 106) no Hoare annotation was computed. [2018-11-28 18:02:23,255 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 105) no Hoare annotation was computed. [2018-11-28 18:02:23,255 INFO L448 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-11-28 18:02:23,255 INFO L448 ceAbstractionStarter]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2018-11-28 18:02:23,255 INFO L444 ceAbstractionStarter]: At program point L38-2(lines 38 42) the Hoare annotation is: (= |__ieee754_expf_#in~x| __ieee754_expf_~x) [2018-11-28 18:02:23,255 INFO L448 ceAbstractionStarter]: For program point L38-3(lines 38 42) no Hoare annotation was computed. [2018-11-28 18:02:23,255 INFO L451 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 33 106) the Hoare annotation is: true [2018-11-28 18:02:23,255 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 70) no Hoare annotation was computed. [2018-11-28 18:02:23,256 INFO L448 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 33 106) no Hoare annotation was computed. [2018-11-28 18:02:23,256 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 65) no Hoare annotation was computed. [2018-11-28 18:02:23,256 INFO L448 ceAbstractionStarter]: For program point L56-2(lines 56 65) no Hoare annotation was computed. [2018-11-28 18:02:23,256 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 49) no Hoare annotation was computed. [2018-11-28 18:02:23,256 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 81 85) no Hoare annotation was computed. [2018-11-28 18:02:23,256 INFO L444 ceAbstractionStarter]: At program point L81-2(lines 81 85) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-11-28 18:02:23,256 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-28 18:02:23,256 INFO L448 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-11-28 18:02:23,256 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 103) no Hoare annotation was computed. [2018-11-28 18:02:23,258 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 92 105) no Hoare annotation was computed. [2018-11-28 18:02:23,258 INFO L448 ceAbstractionStarter]: For program point L99-2(lines 99 103) no Hoare annotation was computed. [2018-11-28 18:02:23,258 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 51) no Hoare annotation was computed. [2018-11-28 18:02:23,258 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-11-28 18:02:23,258 INFO L448 ceAbstractionStarter]: For program point L67(lines 67 70) no Hoare annotation was computed. [2018-11-28 18:02:23,258 INFO L448 ceAbstractionStarter]: For program point L67-2(lines 55 70) no Hoare annotation was computed. [2018-11-28 18:02:23,258 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 69) no Hoare annotation was computed. [2018-11-28 18:02:23,258 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:02:23,259 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:02:23,259 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:02:23,259 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:02:23,259 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:02:23,259 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:02:23,259 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:02:23,259 INFO L444 ceAbstractionStarter]: At program point L130-1(line 130) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) main_~res~0) (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) |main_#t~short20|) [2018-11-28 18:02:23,259 INFO L448 ceAbstractionStarter]: For program point L130-2(line 130) no Hoare annotation was computed. [2018-11-28 18:02:23,259 INFO L444 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-11-28 18:02:23,260 INFO L448 ceAbstractionStarter]: For program point L127-1(line 127) no Hoare annotation was computed. [2018-11-28 18:02:23,260 INFO L448 ceAbstractionStarter]: For program point L130-4(lines 130 133) no Hoare annotation was computed. [2018-11-28 18:02:23,260 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 120 136) the Hoare annotation is: true [2018-11-28 18:02:23,260 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 120 136) no Hoare annotation was computed. [2018-11-28 18:02:23,260 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 120 136) no Hoare annotation was computed. [2018-11-28 18:02:23,260 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 131) no Hoare annotation was computed. [2018-11-28 18:02:23,260 INFO L448 ceAbstractionStarter]: For program point L131(line 131) no Hoare annotation was computed. [2018-11-28 18:02:23,260 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-28 18:02:23,261 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 108 118) no Hoare annotation was computed. [2018-11-28 18:02:23,261 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 108 118) the Hoare annotation is: true [2018-11-28 18:02:23,261 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2018-11-28 18:02:23,261 INFO L444 ceAbstractionStarter]: At program point L111-2(lines 111 115) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-28 18:02:23,261 INFO L448 ceAbstractionStarter]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2018-11-28 18:02:23,261 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 108 118) no Hoare annotation was computed. [2018-11-28 18:02:23,268 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,268 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,269 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,278 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,278 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,278 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,278 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,281 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,282 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,282 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,282 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,282 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,284 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,284 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,284 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:02:23 BoogieIcfgContainer [2018-11-28 18:02:23,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:02:23,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:02:23,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:02:23,288 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:02:23,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:01:25" (3/4) ... [2018-11-28 18:02:23,295 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:02:23,302 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-11-28 18:02:23,302 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:02:23,302 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:02:23,303 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-28 18:02:23,310 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-11-28 18:02:23,311 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-28 18:02:23,311 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-28 18:02:23,311 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:02:23,312 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:02:23,339 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 18:02:23,340 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 18:02:23,341 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-11-28 18:02:23,341 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-11-28 18:02:23,408 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:02:23,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:02:23,411 INFO L168 Benchmark]: Toolchain (without parser) took 67505.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.4 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:02:23,417 INFO L168 Benchmark]: CDTParser took 0.64 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 18:02:23,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.21 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 936.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:23,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:23,418 INFO L168 Benchmark]: Boogie Preprocessor took 68.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:23,418 INFO L168 Benchmark]: RCFGBuilder took 9299.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:23,422 INFO L168 Benchmark]: TraceAbstraction took 57409.55 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -93.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:02:23,422 INFO L168 Benchmark]: Witness Printer took 121.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:02:23,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 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 497.21 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 936.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 101.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9299.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 57409.55 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -93.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 121.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 131]: 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: 81]: Loop Invariant [2018-11-28 18:02:23,441 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,441 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,441 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,441 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,442 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,442 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,442 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,442 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 94]: Loop Invariant [2018-11-28 18:02:23,445 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,447 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-28 18:02:23,447 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. SAFE Result, 57.3s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 51.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 346 SDtfs, 339 SDslu, 1233 SDs, 0 SdLazy, 318 SolverSat, 6 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 48.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 8 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 24 PreInvPairs, 29 NumberOfFragments, 75 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 169 ConstructedInterpolants, 37 QuantifiedInterpolants, 23662 SizeOfPredicates, 25 NumberOfNonLiveVariables, 965 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...