/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230_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 31da98a788dd1938c78053bade42bc512d4e8954 ................................................................................................................................................................................................................................................................................................................................................................................ 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230_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 31da98a788dd1938c78053bade42bc512d4e8954 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:31:31,266 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:31:31,268 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:31:31,290 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:31:31,291 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:31:31,293 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:31:31,295 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:31:31,297 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:31:31,299 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:31:31,301 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:31:31,304 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:31:31,304 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:31:31,306 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:31:31,307 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:31:31,311 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:31:31,312 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:31:31,313 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:31:31,317 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:31:31,320 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:31:31,322 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:31:31,323 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:31:31,324 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:31:31,327 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:31:31,327 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:31:31,328 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:31:31,328 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:31:31,329 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:31:31,330 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:31:31,332 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:31:31,333 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:31:31,333 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:31:31,334 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:31:31,334 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:31:31,335 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:31:31,336 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:31:31,336 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:31:31,337 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:31:31,353 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:31:31,353 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:31:31,354 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:31:31,354 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:31:31,355 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:31:31,356 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:31:31,356 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:31:31,356 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:31:31,356 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:31:31,356 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:31:31,357 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:31:31,357 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:31:31,357 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:31:31,357 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:31:31,358 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:31:31,359 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:31:31,359 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:31:31,359 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:31:31,359 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:31:31,360 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:31:31,360 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:31:31,360 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:31:31,361 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:31:31,361 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:31:31,361 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:31:31,361 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:31:31,361 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:31:31,362 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:31:31,362 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:31:31,362 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 -> 31da98a788dd1938c78053bade42bc512d4e8954 [2018-09-20 15:31:31,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:31:31,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:31:31,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:31:31,452 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:31:31,452 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:31:31,453 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230_true-unreach-call.c [2018-09-20 15:31:31,800 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d596149f1/a00bed393ee94e4883e576e34b74ad26/FLAG9d59305b9 [2018-09-20 15:31:31,999 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:31:32,000 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1230_true-unreach-call.c [2018-09-20 15:31:32,009 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d596149f1/a00bed393ee94e4883e576e34b74ad26/FLAG9d59305b9 [2018-09-20 15:31:32,028 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d596149f1/a00bed393ee94e4883e576e34b74ad26 [2018-09-20 15:31:32,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:31:32,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:31:32,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:31:32,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:31:32,054 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:31:32,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:31:32" (1/1) ... [2018-09-20 15:31:32,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c39906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:32, skipping insertion in model container [2018-09-20 15:31:32,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:31:32" (1/1) ... [2018-09-20 15:31:32,074 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:31:32,316 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:31:32,335 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:31:32,350 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:31:32,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:32 WrapperNode [2018-09-20 15:31:32,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:31:32,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:31:32,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:31:32,379 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:31:32,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:32" (1/1) ... [2018-09-20 15:31:32,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:32" (1/1) ... [2018-09-20 15:31:32,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:32" (1/1) ... [2018-09-20 15:31:32,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:32" (1/1) ... [2018-09-20 15:31:32,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:32" (1/1) ... [2018-09-20 15:31:32,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:32" (1/1) ... [2018-09-20 15:31:32,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:32" (1/1) ... [2018-09-20 15:31:32,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:31:32,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:31:32,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:31:32,430 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:31:32,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:32" (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 [2018-09-20 15:31:32,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:31:32,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:31:32,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-09-20 15:31:32,514 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2018-09-20 15:31:32,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:31:32,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:31:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:31:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-09-20 15:31:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:31:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:31:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:31:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:31:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2018-09-20 15:31:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:31:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:31:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:31:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:31:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:31:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:31:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:31:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:31:33,199 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:31:33,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:31:33 BoogieIcfgContainer [2018-09-20 15:31:33,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:31:33,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:31:33,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:31:33,205 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:31:33,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:31:32" (1/3) ... [2018-09-20 15:31:33,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0215e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:31:33, skipping insertion in model container [2018-09-20 15:31:33,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:32" (2/3) ... [2018-09-20 15:31:33,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0215e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:31:33, skipping insertion in model container [2018-09-20 15:31:33,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:31:33" (3/3) ... [2018-09-20 15:31:33,211 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230_true-unreach-call.c [2018-09-20 15:31:33,222 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:31:33,232 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:31:33,289 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:31:33,290 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:31:33,290 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:31:33,290 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:31:33,291 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:31:33,291 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:31:33,291 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:31:33,291 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:31:33,292 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:31:33,316 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-09-20 15:31:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-20 15:31:33,325 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:33,327 INFO L376 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] [2018-09-20 15:31:33,330 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:33,337 INFO L82 PathProgramCache]: Analyzing trace with hash 972398874, now seen corresponding path program 1 times [2018-09-20 15:31:33,340 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:31:33,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:31:33,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:33,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:33,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:33,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:33,534 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:33,536 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:31:33,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:31:33,559 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:31:33,560 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:31:33,565 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-09-20 15:31:33,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:33,609 INFO L93 Difference]: Finished difference Result 87 states and 108 transitions. [2018-09-20 15:31:33,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:31:33,611 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2018-09-20 15:31:33,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:33,622 INFO L225 Difference]: With dead ends: 87 [2018-09-20 15:31:33,622 INFO L226 Difference]: Without dead ends: 44 [2018-09-20 15:31:33,627 INFO L606 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 [2018-09-20 15:31:33,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-09-20 15:31:33,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-09-20 15:31:33,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-20 15:31:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-09-20 15:31:33,685 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 26 [2018-09-20 15:31:33,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:33,685 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2018-09-20 15:31:33,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:31:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2018-09-20 15:31:33,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-20 15:31:33,688 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:33,688 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:33,689 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:33,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1488347716, now seen corresponding path program 1 times [2018-09-20 15:31:33,689 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:31:33,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:31:33,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:33,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:33,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:33,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:33,860 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:33,860 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:31:33,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:31:33,862 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:31:33,863 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:33,863 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 4 states. [2018-09-20 15:31:33,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:33,960 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2018-09-20 15:31:33,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:31:33,961 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-09-20 15:31:33,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:33,965 INFO L225 Difference]: With dead ends: 59 [2018-09-20 15:31:33,965 INFO L226 Difference]: Without dead ends: 48 [2018-09-20 15:31:33,966 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:33,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-09-20 15:31:33,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-09-20 15:31:33,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-09-20 15:31:33,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-09-20 15:31:33,980 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 35 [2018-09-20 15:31:33,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:33,980 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-09-20 15:31:33,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:31:33,980 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-09-20 15:31:33,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-20 15:31:33,983 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:33,983 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:33,983 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:33,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1403372891, now seen corresponding path program 1 times [2018-09-20 15:31:33,984 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:31:33,984 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:31:33,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:33,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:33,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:34,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:34,101 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:34,101 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:31:34,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:31:34,102 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:31:34,102 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:34,103 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 4 states. [2018-09-20 15:31:34,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:34,212 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2018-09-20 15:31:34,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:31:34,212 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2018-09-20 15:31:34,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:34,214 INFO L225 Difference]: With dead ends: 63 [2018-09-20 15:31:34,214 INFO L226 Difference]: Without dead ends: 52 [2018-09-20 15:31:34,215 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:34,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-20 15:31:34,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2018-09-20 15:31:34,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-09-20 15:31:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-09-20 15:31:34,225 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 38 [2018-09-20 15:31:34,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:34,226 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-09-20 15:31:34,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:31:34,226 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-09-20 15:31:34,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-20 15:31:34,227 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:34,228 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:34,228 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:34,228 INFO L82 PathProgramCache]: Analyzing trace with hash 104178918, now seen corresponding path program 1 times [2018-09-20 15:31:34,228 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:31:34,229 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:31:34,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:34,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:34,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:31:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:31:34,326 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:31:34,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:31:34 BoogieIcfgContainer [2018-09-20 15:31:34,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:31:34,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:31:34,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:31:34,364 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:31:34,365 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:31:33" (3/4) ... [2018-09-20 15:31:34,369 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:31:34,369 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:31:34,370 INFO L168 Benchmark]: Toolchain (without parser) took 2332.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 954.5 MB in the beginning and 1.0 GB in the end (delta: -84.0 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:34,373 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:31:34,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.76 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:34,374 INFO L168 Benchmark]: Boogie Preprocessor took 50.88 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:31:34,375 INFO L168 Benchmark]: RCFGBuilder took 769.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -138.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:34,376 INFO L168 Benchmark]: TraceAbstraction took 1161.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.5 MB). Peak memory consumption was 43.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:34,377 INFO L168 Benchmark]: Witness Printer took 6.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:31:34,381 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 333.76 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.88 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 769.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -138.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1161.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.5 MB). Peak memory consumption was 43.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 54. Possible FailurePath: [L54] float x = 0.0f / 0.0f; [L55] float y = 0.0f / 0.0f; [L56] CALL, EXPR fmin_float(x, y) VAL [\old(x)=4286578691, \old(y)=4286578692] [L35] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=4286578691] [L12] __uint32_t w; VAL [\old(x)=4286578691, x=4286578691] [L15] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=4286578691, gf_u={4286578695:0}, x=4286578691] [L16] FCALL gf_u.value = (x) VAL [\old(x)=4286578691, gf_u={4286578695:0}, x=4286578691] [L17] EXPR, FCALL gf_u.word VAL [\old(x)=4286578691, gf_u={4286578695:0}, gf_u.word=4286578689, x=4286578691] [L17] (w) = gf_u.word VAL [\old(x)=4286578691, gf_u={4286578695:0}, gf_u.word=4286578689, w=4286578689, x=4286578691] [L17] FCALL (w) = gf_u.word VAL [(w) = gf_u.word=4286578693, \old(x)=4286578691, gf_u={4286578695:0}, gf_u.word=4286578689, w=4286578689, x=4286578691] [L18] COND FALSE !(0) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L20] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L22-L23] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L25-L26] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L28] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L31] RET return 0; VAL [\old(x)=4286578691, \result=0, w=4286578689, x=4286578691] [L35] EXPR __fpclassify_float(x) VAL [\old(x)=4286578691, \old(y)=4286578692, __fpclassify_float(x)=0, x=4286578691, y=4286578692] [L35] COND TRUE __fpclassify_float(x) == 0 [L36] RET return y; VAL [\old(x)=4286578691, \old(y)=4286578692, \result=4286578692, x=4286578691, y=4286578692] [L56] EXPR fmin_float(x, y) VAL [fmin_float(x, y)=4286578692, x=4286578691, y=4286578692] [L56] float res = fmin_float(x, y); [L58] CALL, EXPR isnan_float(res) VAL [\old(x)=4286578692] [L44] RET return x != x; VAL [\old(x)=4286578692, \result=0, x=4286578692] [L58] EXPR isnan_float(res) VAL [isnan_float(res)=0, res=4286578692, x=4286578691, y=4286578692] [L58] COND TRUE !isnan_float(res) [L59] __VERIFIER_error() VAL [res=4286578692, x=4286578691, y=4286578692] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 48 locations, 1 error locations. UNSAFE Result, 1.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 158 SDtfs, 0 SDslu, 190 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 3718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 0.1.23-40ef509 [2018-09-20 15:31:37,009 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:31:37,012 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:31:37,029 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:31:37,030 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:31:37,031 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:31:37,032 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:31:37,034 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:31:37,035 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:31:37,036 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:31:37,037 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:31:37,038 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:31:37,039 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:31:37,040 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:31:37,041 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:31:37,041 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:31:37,042 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:31:37,044 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:31:37,046 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:31:37,048 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:31:37,049 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:31:37,050 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:31:37,053 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:31:37,053 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:31:37,053 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:31:37,054 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:31:37,055 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:31:37,056 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:31:37,057 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:31:37,058 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:31:37,058 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:31:37,059 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:31:37,059 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:31:37,059 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:31:37,060 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:31:37,061 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:31:37,061 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:31:37,078 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:31:37,078 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:31:37,079 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:31:37,079 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:31:37,081 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:31:37,081 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:31:37,081 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:31:37,081 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:31:37,082 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:31:37,082 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:31:37,082 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:31:37,082 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:31:37,082 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:31:37,083 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:31:37,083 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:31:37,083 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:31:37,083 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:31:37,083 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:31:37,083 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:31:37,084 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:31:37,084 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:31:37,084 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:31:37,084 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:31:37,084 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:31:37,085 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:31:37,085 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:31:37,085 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:31:37,085 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:31:37,085 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:31:37,085 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:31:37,086 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:31:37,086 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 -> 31da98a788dd1938c78053bade42bc512d4e8954 [2018-09-20 15:31:37,134 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:31:37,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:31:37,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:31:37,160 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:31:37,160 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:31:37,161 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230_true-unreach-call.c [2018-09-20 15:31:37,503 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc47d733a/1c85c21b10444f5dae8dbffd94bb07d9/FLAG92ed59e0f [2018-09-20 15:31:37,650 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:31:37,650 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1230_true-unreach-call.c [2018-09-20 15:31:37,659 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc47d733a/1c85c21b10444f5dae8dbffd94bb07d9/FLAG92ed59e0f [2018-09-20 15:31:37,675 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc47d733a/1c85c21b10444f5dae8dbffd94bb07d9 [2018-09-20 15:31:37,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:31:37,686 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:31:37,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:31:37,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:31:37,694 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:31:37,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:31:37" (1/1) ... [2018-09-20 15:31:37,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0cdfd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:37, skipping insertion in model container [2018-09-20 15:31:37,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:31:37" (1/1) ... [2018-09-20 15:31:37,711 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:31:37,943 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:31:37,970 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:31:37,994 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:31:38,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:38 WrapperNode [2018-09-20 15:31:38,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:31:38,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:31:38,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:31:38,043 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:31:38,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:38" (1/1) ... [2018-09-20 15:31:38,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:38" (1/1) ... [2018-09-20 15:31:38,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:38" (1/1) ... [2018-09-20 15:31:38,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:38" (1/1) ... [2018-09-20 15:31:38,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:38" (1/1) ... [2018-09-20 15:31:38,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:38" (1/1) ... [2018-09-20 15:31:38,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:38" (1/1) ... [2018-09-20 15:31:38,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:31:38,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:31:38,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:31:38,101 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:31:38,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:31:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:31:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:31:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-09-20 15:31:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2018-09-20 15:31:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:31:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:31:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:31:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-09-20 15:31:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2018-09-20 15:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:31:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:31:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:31:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:31:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:31:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:31:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:31:38,654 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:31:38,683 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:31:38,795 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:31:38,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:31:38 BoogieIcfgContainer [2018-09-20 15:31:38,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:31:38,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:31:38,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:31:38,800 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:31:38,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:31:37" (1/3) ... [2018-09-20 15:31:38,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645efa9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:31:38, skipping insertion in model container [2018-09-20 15:31:38,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:38" (2/3) ... [2018-09-20 15:31:38,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645efa9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:31:38, skipping insertion in model container [2018-09-20 15:31:38,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:31:38" (3/3) ... [2018-09-20 15:31:38,804 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230_true-unreach-call.c [2018-09-20 15:31:38,814 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:31:38,821 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:31:38,866 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:31:38,866 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:31:38,867 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:31:38,867 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:31:38,867 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:31:38,867 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:31:38,867 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:31:38,868 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:31:38,868 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:31:38,889 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-09-20 15:31:38,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-20 15:31:38,897 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:38,898 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:38,900 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:38,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1802458678, now seen corresponding path program 1 times [2018-09-20 15:31:38,911 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:38,912 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 [2018-09-20 15:31:38,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:39,004 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:39,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:39,025 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:39,040 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:39,041 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:31:39,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:31:39,061 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:31:39,062 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:31:39,065 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-09-20 15:31:39,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:39,095 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2018-09-20 15:31:39,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:31:39,097 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-20 15:31:39,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:39,114 INFO L225 Difference]: With dead ends: 81 [2018-09-20 15:31:39,116 INFO L226 Difference]: Without dead ends: 41 [2018-09-20 15:31:39,122 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:31:39,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-09-20 15:31:39,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-09-20 15:31:39,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-09-20 15:31:39,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2018-09-20 15:31:39,172 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 24 [2018-09-20 15:31:39,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:39,173 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2018-09-20 15:31:39,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:31:39,173 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2018-09-20 15:31:39,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-20 15:31:39,176 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:39,176 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:39,177 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:39,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1841206223, now seen corresponding path program 1 times [2018-09-20 15:31:39,178 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:39,179 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 [2018-09-20 15:31:39,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:39,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:39,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:39,321 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:39,336 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:39,336 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:31:39,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:31:39,339 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:31:39,339 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:39,339 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 4 states. [2018-09-20 15:31:39,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:39,474 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2018-09-20 15:31:39,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:31:39,475 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-09-20 15:31:39,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:39,482 INFO L225 Difference]: With dead ends: 54 [2018-09-20 15:31:39,483 INFO L226 Difference]: Without dead ends: 44 [2018-09-20 15:31:39,484 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:39,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-09-20 15:31:39,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-09-20 15:31:39,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-20 15:31:39,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-09-20 15:31:39,509 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 33 [2018-09-20 15:31:39,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:39,510 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-09-20 15:31:39,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:31:39,510 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-09-20 15:31:39,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-20 15:31:39,514 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:39,514 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:39,515 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:39,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1530245693, now seen corresponding path program 1 times [2018-09-20 15:31:39,517 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:39,518 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 [2018-09-20 15:31:39,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:39,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:39,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:39,717 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:39,733 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:39,733 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:31:39,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:31:39,734 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:31:39,734 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:39,735 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 4 states. [2018-09-20 15:31:39,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:39,879 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2018-09-20 15:31:39,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:31:39,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-09-20 15:31:39,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:39,885 INFO L225 Difference]: With dead ends: 57 [2018-09-20 15:31:39,885 INFO L226 Difference]: Without dead ends: 47 [2018-09-20 15:31:39,886 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:39,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-09-20 15:31:39,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2018-09-20 15:31:39,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-20 15:31:39,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-09-20 15:31:39,901 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 34 [2018-09-20 15:31:39,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:39,902 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-09-20 15:31:39,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:31:39,902 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-09-20 15:31:39,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-20 15:31:39,904 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:39,904 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:39,904 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:39,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1792427957, now seen corresponding path program 1 times [2018-09-20 15:31:39,905 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:39,905 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) [2018-09-20 15:31:39,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:39,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:40,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:40,040 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:40,053 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:40,054 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:31:40,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:31:40,054 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:31:40,055 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:40,055 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 4 states. [2018-09-20 15:31:40,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:40,191 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2018-09-20 15:31:40,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:31:40,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-09-20 15:31:40,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:40,194 INFO L225 Difference]: With dead ends: 57 [2018-09-20 15:31:40,194 INFO L226 Difference]: Without dead ends: 47 [2018-09-20 15:31:40,194 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:40,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-09-20 15:31:40,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2018-09-20 15:31:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-20 15:31:40,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-09-20 15:31:40,202 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 35 [2018-09-20 15:31:40,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:40,203 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-09-20 15:31:40,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:31:40,203 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-09-20 15:31:40,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-20 15:31:40,205 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:40,205 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:40,205 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:40,205 INFO L82 PathProgramCache]: Analyzing trace with hash -136871486, now seen corresponding path program 1 times [2018-09-20 15:31:40,206 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:40,206 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-20 15:31:40,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:40,269 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:40,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:40,556 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:40,571 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:40,571 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:31:40,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:31:40,573 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:31:40,573 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:31:40,573 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 9 states. [2018-09-20 15:31:40,935 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 15:31:41,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:41,238 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2018-09-20 15:31:41,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:31:41,240 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-09-20 15:31:41,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:41,242 INFO L225 Difference]: With dead ends: 51 [2018-09-20 15:31:41,242 INFO L226 Difference]: Without dead ends: 44 [2018-09-20 15:31:41,243 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:31:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-09-20 15:31:41,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2018-09-20 15:31:41,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-09-20 15:31:41,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2018-09-20 15:31:41,252 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 36 [2018-09-20 15:31:41,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:41,253 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2018-09-20 15:31:41,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:31:41,253 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2018-09-20 15:31:41,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-20 15:31:41,256 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:41,256 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:41,256 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:41,257 INFO L82 PathProgramCache]: Analyzing trace with hash -2090172777, now seen corresponding path program 1 times [2018-09-20 15:31:41,257 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:41,258 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) [2018-09-20 15:31:41,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:41,334 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:41,369 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-20 15:31:41,370 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:41,385 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:41,386 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:31:41,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:31:41,387 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:31:41,387 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:41,388 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand 4 states. [2018-09-20 15:31:41,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:41,423 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2018-09-20 15:31:41,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:31:41,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2018-09-20 15:31:41,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:41,429 INFO L225 Difference]: With dead ends: 54 [2018-09-20 15:31:41,429 INFO L226 Difference]: Without dead ends: 44 [2018-09-20 15:31:41,430 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:41,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-09-20 15:31:41,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-09-20 15:31:41,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-20 15:31:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-09-20 15:31:41,441 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 49 [2018-09-20 15:31:41,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:41,441 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2018-09-20 15:31:41,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:31:41,442 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2018-09-20 15:31:41,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 15:31:41,443 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:41,444 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-20 15:31:41,445 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:41,445 INFO L82 PathProgramCache]: Analyzing trace with hash -2037596367, now seen corresponding path program 1 times [2018-09-20 15:31:41,446 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:41,446 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 [2018-09-20 15:31:41,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:41,529 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-20 15:31:41,674 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:41,684 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:41,685 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:31:41,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:31:41,685 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:31:41,685 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:41,686 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 4 states. [2018-09-20 15:31:41,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:41,742 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-09-20 15:31:41,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:31:41,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2018-09-20 15:31:41,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:41,744 INFO L225 Difference]: With dead ends: 57 [2018-09-20 15:31:41,744 INFO L226 Difference]: Without dead ends: 47 [2018-09-20 15:31:41,744 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:41,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-09-20 15:31:41,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2018-09-20 15:31:41,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-20 15:31:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-09-20 15:31:41,751 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 50 [2018-09-20 15:31:41,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:41,752 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2018-09-20 15:31:41,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:31:41,752 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2018-09-20 15:31:41,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-20 15:31:41,753 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:41,754 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-20 15:31:41,754 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:41,754 INFO L82 PathProgramCache]: Analyzing trace with hash 191150482, now seen corresponding path program 1 times [2018-09-20 15:31:41,755 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:41,755 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 [2018-09-20 15:31:41,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:41,831 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:41,992 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-09-20 15:31:41,992 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:42,010 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:42,010 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-20 15:31:42,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-20 15:31:42,011 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-20 15:31:42,012 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-20 15:31:42,012 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 5 states. [2018-09-20 15:31:42,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:42,280 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2018-09-20 15:31:42,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-20 15:31:42,281 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2018-09-20 15:31:42,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:42,282 INFO L225 Difference]: With dead ends: 55 [2018-09-20 15:31:42,283 INFO L226 Difference]: Without dead ends: 44 [2018-09-20 15:31:42,283 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-20 15:31:42,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-09-20 15:31:42,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-09-20 15:31:42,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-20 15:31:42,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2018-09-20 15:31:42,294 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 51 [2018-09-20 15:31:42,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:42,294 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2018-09-20 15:31:42,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-20 15:31:42,294 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2018-09-20 15:31:42,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-20 15:31:42,298 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:42,298 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-20 15:31:42,299 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:42,299 INFO L82 PathProgramCache]: Analyzing trace with hash 892215060, now seen corresponding path program 1 times [2018-09-20 15:31:42,300 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:42,300 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:42,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:42,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:42,665 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-09-20 15:31:42,665 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:42,675 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:42,675 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-20 15:31:42,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-20 15:31:42,676 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-20 15:31:42,676 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:31:42,677 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand 10 states. [2018-09-20 15:31:43,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:43,051 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2018-09-20 15:31:43,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-20 15:31:43,052 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2018-09-20 15:31:43,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:43,054 INFO L225 Difference]: With dead ends: 51 [2018-09-20 15:31:43,054 INFO L226 Difference]: Without dead ends: 41 [2018-09-20 15:31:43,055 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-09-20 15:31:43,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-09-20 15:31:43,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-09-20 15:31:43,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-09-20 15:31:43,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-09-20 15:31:43,062 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 51 [2018-09-20 15:31:43,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:43,062 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-09-20 15:31:43,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-20 15:31:43,062 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-09-20 15:31:43,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-20 15:31:43,063 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:43,064 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-20 15:31:43,064 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:43,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1581339685, now seen corresponding path program 1 times [2018-09-20 15:31:43,065 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:43,065 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:43,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:43,137 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:43,178 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-20 15:31:43,178 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:43,189 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:43,189 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:31:43,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:31:43,190 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:31:43,190 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:43,190 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 4 states. [2018-09-20 15:31:43,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:43,210 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2018-09-20 15:31:43,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:31:43,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-09-20 15:31:43,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:43,212 INFO L225 Difference]: With dead ends: 54 [2018-09-20 15:31:43,212 INFO L226 Difference]: Without dead ends: 43 [2018-09-20 15:31:43,213 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:43,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-09-20 15:31:43,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-09-20 15:31:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-09-20 15:31:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-09-20 15:31:43,219 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 51 [2018-09-20 15:31:43,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:43,219 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-09-20 15:31:43,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:31:43,219 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-09-20 15:31:43,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-20 15:31:43,220 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:43,220 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-20 15:31:43,221 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:43,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1789299466, now seen corresponding path program 1 times [2018-09-20 15:31:43,221 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:43,221 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:43,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:43,279 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-09-20 15:31:43,481 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:43,492 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:43,493 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:31:43,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:31:43,493 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:31:43,494 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:31:43,494 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 9 states. [2018-09-20 15:31:43,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:43,832 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-09-20 15:31:43,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:31:43,832 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2018-09-20 15:31:43,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:43,833 INFO L225 Difference]: With dead ends: 41 [2018-09-20 15:31:43,833 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:31:43,834 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:31:43,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:31:43,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:31:43,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:31:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:31:43,836 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2018-09-20 15:31:43,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:43,836 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:31:43,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:31:43,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:31:43,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:31:43,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:31:44,231 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 44) no Hoare annotation was computed. [2018-09-20 15:31:44,231 INFO L429 ceAbstractionStarter]: At program point isnan_floatENTRY(line 44) the Hoare annotation is: true [2018-09-20 15:31:44,231 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 44) no Hoare annotation was computed. [2018-09-20 15:31:44,231 INFO L429 ceAbstractionStarter]: At program point fmin_floatENTRY(lines 34 41) the Hoare annotation is: true [2018-09-20 15:31:44,231 INFO L426 ceAbstractionStarter]: For program point fmin_floatEXIT(lines 34 41) no Hoare annotation was computed. [2018-09-20 15:31:44,232 INFO L426 ceAbstractionStarter]: For program point fmin_floatFINAL(lines 34 41) no Hoare annotation was computed. [2018-09-20 15:31:44,232 INFO L426 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-09-20 15:31:44,232 INFO L426 ceAbstractionStarter]: For program point L40-2(line 40) no Hoare annotation was computed. [2018-09-20 15:31:44,232 INFO L422 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: (and (= fmin_float_~x |fmin_float_#in~x|) (= fmin_float_~y |fmin_float_#in~y|)) [2018-09-20 15:31:44,232 INFO L426 ceAbstractionStarter]: For program point L37-1(lines 37 38) no Hoare annotation was computed. [2018-09-20 15:31:44,232 INFO L422 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (and (= fmin_float_~x |fmin_float_#in~x|) (= fmin_float_~y |fmin_float_#in~y|)) [2018-09-20 15:31:44,233 INFO L426 ceAbstractionStarter]: For program point L35-1(lines 35 36) no Hoare annotation was computed. [2018-09-20 15:31:44,233 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:31:44,233 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:31:44,233 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:31:44,233 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:31:44,233 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:31:44,233 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:31:44,233 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:31:44,234 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2018-09-20 15:31:44,234 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 46 64) the Hoare annotation is: true [2018-09-20 15:31:44,234 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 46 64) no Hoare annotation was computed. [2018-09-20 15:31:44,234 INFO L426 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2018-09-20 15:31:44,234 INFO L422 ceAbstractionStarter]: At program point L58(line 58) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 main_~res~0) (= .cse0 main_~y~0))) [2018-09-20 15:31:44,234 INFO L426 ceAbstractionStarter]: For program point L58-1(lines 58 61) no Hoare annotation was computed. [2018-09-20 15:31:44,234 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 46 64) no Hoare annotation was computed. [2018-09-20 15:31:44,235 INFO L422 ceAbstractionStarter]: At program point L56(line 56) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= .cse0 main_~y~0))) [2018-09-20 15:31:44,235 INFO L426 ceAbstractionStarter]: For program point L56-1(line 56) no Hoare annotation was computed. [2018-09-20 15:31:44,235 INFO L426 ceAbstractionStarter]: For program point __fpclassify_floatFINAL(lines 11 32) no Hoare annotation was computed. [2018-09-20 15:31:44,235 INFO L426 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-09-20 15:31:44,235 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-20 15:31:44,236 INFO L426 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-09-20 15:31:44,236 INFO L426 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-09-20 15:31:44,236 INFO L426 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-09-20 15:31:44,236 INFO L426 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-09-20 15:31:44,236 INFO L426 ceAbstractionStarter]: For program point L15-2(line 15) no Hoare annotation was computed. [2018-09-20 15:31:44,236 INFO L426 ceAbstractionStarter]: For program point L15-3(line 15) no Hoare annotation was computed. [2018-09-20 15:31:44,236 INFO L426 ceAbstractionStarter]: For program point L28(lines 28 31) no Hoare annotation was computed. [2018-09-20 15:31:44,236 INFO L426 ceAbstractionStarter]: For program point L22(lines 22 31) no Hoare annotation was computed. [2018-09-20 15:31:44,237 INFO L426 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-09-20 15:31:44,237 INFO L426 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-09-20 15:31:44,237 INFO L429 ceAbstractionStarter]: At program point __fpclassify_floatENTRY(lines 11 32) the Hoare annotation is: true [2018-09-20 15:31:44,237 INFO L429 ceAbstractionStarter]: At program point L14-3(lines 14 18) the Hoare annotation is: true [2018-09-20 15:31:44,237 INFO L426 ceAbstractionStarter]: For program point L14-4(lines 11 32) no Hoare annotation was computed. [2018-09-20 15:31:44,237 INFO L426 ceAbstractionStarter]: For program point __fpclassify_floatEXIT(lines 11 32) no Hoare annotation was computed. [2018-09-20 15:31:44,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:31:44 BoogieIcfgContainer [2018-09-20 15:31:44,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:31:44,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:31:44,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:31:44,246 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:31:44,246 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:31:38" (3/4) ... [2018-09-20 15:31:44,251 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:31:44,260 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-20 15:31:44,260 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:31:44,260 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fmin_float [2018-09-20 15:31:44,261 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:31:44,261 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __fpclassify_float [2018-09-20 15:31:44,267 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-20 15:31:44,267 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-09-20 15:31:44,268 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:31:44,334 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:31:44,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:31:44,336 INFO L168 Benchmark]: Toolchain (without parser) took 6652.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 953.2 MB in the beginning and 820.0 MB in the end (delta: 133.2 MB). Peak memory consumption was 262.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:44,337 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:31:44,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.00 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 940.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:44,338 INFO L168 Benchmark]: Boogie Preprocessor took 57.90 ms. Allocated memory is still 1.0 GB. Free memory is still 940.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:31:44,338 INFO L168 Benchmark]: RCFGBuilder took 694.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -155.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:44,339 INFO L168 Benchmark]: TraceAbstraction took 5448.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 820.0 MB in the end (delta: 276.0 MB). Peak memory consumption was 276.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:44,340 INFO L168 Benchmark]: Witness Printer took 89.29 ms. Allocated memory is still 1.2 GB. Free memory is still 820.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:31:44,343 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 355.00 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 940.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.90 ms. Allocated memory is still 1.0 GB. Free memory is still 940.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 694.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -155.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5448.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 820.0 MB in the end (delta: 276.0 MB). Peak memory consumption was 276.0 MB. Max. memory is 11.5 GB. * Witness Printer took 89.29 ms. Allocated memory is still 1.2 GB. Free memory is still 820.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: 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: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 45 locations, 1 error locations. SAFE Result, 5.3s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 505 SDtfs, 31 SDslu, 1466 SDs, 0 SdLazy, 204 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 469 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 14 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 26 PreInvPairs, 31 NumberOfFragments, 48 HoareAnnotationTreeSize, 26 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 466 NumberOfCodeBlocks, 466 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 455 ConstructedInterpolants, 3 QuantifiedInterpolants, 32455 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1014 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 84/84 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...