/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092c_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_1092c_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 515d13351b6efee56e7d1331680e6aaafc770d9e ................................................................................................................................................................................................................................................................................................................ 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_1092c_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 515d13351b6efee56e7d1331680e6aaafc770d9e ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:30:33,261 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:30:33,264 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:30:33,276 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:30:33,276 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:30:33,278 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:30:33,279 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:30:33,281 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:30:33,282 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:30:33,283 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:30:33,284 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:30:33,284 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:30:33,285 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:30:33,286 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:30:33,287 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:30:33,288 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:30:33,289 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:30:33,290 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:30:33,293 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:30:33,294 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:30:33,295 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:30:33,296 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:30:33,299 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:30:33,299 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:30:33,299 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:30:33,300 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:30:33,301 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:30:33,302 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:30:33,303 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:30:33,307 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:30:33,307 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:30:33,308 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:30:33,308 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:30:33,308 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:30:33,309 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:30:33,313 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:30:33,314 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:30:33,346 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:30:33,348 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:30:33,349 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:30:33,350 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:30:33,350 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:30:33,352 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:30:33,352 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:30:33,353 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:30:33,354 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:30:33,354 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:30:33,354 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:30:33,354 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:30:33,354 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:30:33,354 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:30:33,355 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:30:33,355 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:30:33,355 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:30:33,355 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:30:33,358 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:30:33,358 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:30:33,358 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:30:33,358 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:30:33,359 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:30:33,359 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:30:33,359 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:30:33,359 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:30:33,359 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:30:33,359 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:30:33,360 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:30:33,360 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 -> 515d13351b6efee56e7d1331680e6aaafc770d9e [2018-09-20 15:30:33,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:30:33,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:30:33,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:30:33,472 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:30:33,472 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:30:33,473 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092c_true-unreach-call.c [2018-09-20 15:30:33,832 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbf85be3a/bb92a1d1e2f34196ab6ad8aff4bb4774/FLAG489fa4295 [2018-09-20 15:30:34,002 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:30:34,007 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1092c_true-unreach-call.c [2018-09-20 15:30:34,020 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbf85be3a/bb92a1d1e2f34196ab6ad8aff4bb4774/FLAG489fa4295 [2018-09-20 15:30:34,048 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbf85be3a/bb92a1d1e2f34196ab6ad8aff4bb4774 [2018-09-20 15:30:34,053 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:30:34,059 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:30:34,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:34,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:30:34,070 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:30:34,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:34" (1/1) ... [2018-09-20 15:30:34,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27129d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:34, skipping insertion in model container [2018-09-20 15:30:34,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:34" (1/1) ... [2018-09-20 15:30:34,088 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:30:34,319 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:34,339 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:30:34,362 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:34,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:34 WrapperNode [2018-09-20 15:30:34,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:34,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:30:34,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:30:34,406 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:30:34,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:34" (1/1) ... [2018-09-20 15:30:34,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:34" (1/1) ... [2018-09-20 15:30:34,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:34" (1/1) ... [2018-09-20 15:30:34,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:34" (1/1) ... [2018-09-20 15:30:34,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:34" (1/1) ... [2018-09-20 15:30:34,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:34" (1/1) ... [2018-09-20 15:30:34,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:34" (1/1) ... [2018-09-20 15:30:34,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:30:34,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:30:34,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:30:34,469 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:30:34,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:34" (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 15:30:34,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:30:34,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:30:34,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-09-20 15:30:34,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-20 15:30:34,608 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:30:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:30:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-09-20 15:30:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:30:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:30:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:30:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:30:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:30:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:30:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-20 15:30:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:30:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:30:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:30:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:30:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:30:35,204 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:30:35,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:35 BoogieIcfgContainer [2018-09-20 15:30:35,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:30:35,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:30:35,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:30:35,209 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:30:35,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:30:34" (1/3) ... [2018-09-20 15:30:35,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b5730f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:35, skipping insertion in model container [2018-09-20 15:30:35,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:34" (2/3) ... [2018-09-20 15:30:35,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b5730f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:35, skipping insertion in model container [2018-09-20 15:30:35,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:35" (3/3) ... [2018-09-20 15:30:35,213 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092c_true-unreach-call.c [2018-09-20 15:30:35,221 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:30:35,231 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:30:35,279 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:30:35,279 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:30:35,280 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:30:35,280 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:30:35,280 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:30:35,280 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:30:35,280 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:30:35,280 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:30:35,281 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:30:35,303 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2018-09-20 15:30:35,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-20 15:30:35,311 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:35,312 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 15:30:35,315 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:35,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1270031414, now seen corresponding path program 1 times [2018-09-20 15:30:35,324 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:30:35,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:30:35,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:30:35,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:35,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:30:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:35,476 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 15:30:35,487 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:35,488 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:30:35,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:30:35,509 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:30:35,510 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:30:35,513 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2018-09-20 15:30:35,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:35,546 INFO L93 Difference]: Finished difference Result 124 states and 155 transitions. [2018-09-20 15:30:35,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:30:35,547 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-20 15:30:35,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:35,559 INFO L225 Difference]: With dead ends: 124 [2018-09-20 15:30:35,560 INFO L226 Difference]: Without dead ends: 62 [2018-09-20 15:30:35,564 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 15:30:35,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-09-20 15:30:35,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-09-20 15:30:35,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-20 15:30:35,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2018-09-20 15:30:35,618 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 24 [2018-09-20 15:30:35,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:35,619 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2018-09-20 15:30:35,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:30:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2018-09-20 15:30:35,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-20 15:30:35,623 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:35,623 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, 1, 1, 1, 1] [2018-09-20 15:30:35,623 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:35,624 INFO L82 PathProgramCache]: Analyzing trace with hash 756657447, now seen corresponding path program 1 times [2018-09-20 15:30:35,624 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:30:35,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:30:35,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:30:35,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:35,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:30:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:30:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:30:35,815 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:30:35,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:30:35 BoogieIcfgContainer [2018-09-20 15:30:35,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:30:35,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:30:35,854 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:30:35,855 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:30:35,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:35" (3/4) ... [2018-09-20 15:30:35,860 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:30:35,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:30:35,862 INFO L168 Benchmark]: Toolchain (without parser) took 1808.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -122.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:35,865 INFO L168 Benchmark]: CDTParser took 0.19 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 15:30:35,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.40 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:35,868 INFO L168 Benchmark]: Boogie Preprocessor took 61.63 ms. Allocated memory is still 1.0 GB. Free memory was 938.4 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:35,870 INFO L168 Benchmark]: RCFGBuilder took 737.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:35,871 INFO L168 Benchmark]: TraceAbstraction took 647.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:35,873 INFO L168 Benchmark]: Witness Printer took 5.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:30:35,881 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 344.40 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.63 ms. Allocated memory is still 1.0 GB. Free memory was 938.4 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 737.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 647.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 64. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=6442450950, huge_ceil=1000000000000000000000000000000] [L76] float x = 1.0f / 0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L77] CALL, EXPR ceil_float(x) VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, x=6442450952] [L17] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450952, gf_u={6442450945:0}, huge_ceil=1000000000000000000000000000000, x=6442450952] [L18] FCALL gf_u.value = (x) VAL [\old(x)=6442450952, gf_u={6442450945:0}, huge_ceil=1000000000000000000000000000000, x=6442450952] [L19] EXPR, FCALL gf_u.word VAL [\old(x)=6442450952, gf_u={6442450945:0}, gf_u.word=6442450944, huge_ceil=1000000000000000000000000000000, x=6442450952] [L19] (i0) = gf_u.word VAL [\old(x)=6442450952, gf_u={6442450945:0}, gf_u.word=6442450944, huge_ceil=1000000000000000000000000000000, i0=-2147483648, x=6442450952] [L19] FCALL (i0) = gf_u.word VAL [(i0) = gf_u.word=6442450948, \old(x)=6442450952, gf_u={6442450945:0}, gf_u.word=6442450944, huge_ceil=1000000000000000000000000000000, i0=-2147483648, x=6442450952] [L20] COND FALSE !(0) VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i0=-2147483648, x=6442450952] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450952] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450952] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] RET return x + x; VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450952] [L77] EXPR ceil_float(x) VAL [ceil_float(x)=6442450951, huge_ceil=1000000000000000000000000000000, x=6442450952] [L77] float res = ceil_float(x); [L80] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450951, huge_ceil=1000000000000000000000000000000] [L58] __int32_t ix; VAL [\old(x)=6442450951, huge_ceil=1000000000000000000000000000000, x=6442450951] [L60] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450951, gf_u={6442450947:0}, huge_ceil=1000000000000000000000000000000, x=6442450951] [L61] FCALL gf_u.value = (x) VAL [\old(x)=6442450951, gf_u={6442450947:0}, huge_ceil=1000000000000000000000000000000, x=6442450951] [L62] EXPR, FCALL gf_u.word VAL [\old(x)=6442450951, gf_u={6442450947:0}, gf_u.word=3, huge_ceil=1000000000000000000000000000000, x=6442450951] [L62] (ix) = gf_u.word VAL [\old(x)=6442450951, gf_u={6442450947:0}, gf_u.word=3, huge_ceil=1000000000000000000000000000000, ix=3, x=6442450951] [L62] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=6442450949, \old(x)=6442450951, gf_u={6442450947:0}, gf_u.word=3, huge_ceil=1000000000000000000000000000000, ix=3, x=6442450951] [L63] COND FALSE !(0) VAL [\old(x)=6442450951, huge_ceil=1000000000000000000000000000000, ix=3, x=6442450951] [L64] ix &= 0x7fffffff [L65] RET return ((ix) == 0x7f800000L); VAL [\old(x)=6442450951, \result=0, huge_ceil=1000000000000000000000000000000, ix=0, x=6442450951] [L80] EXPR isinf_float(res) VAL [huge_ceil=1000000000000000000000000000000, isinf_float(res)=0, res=6442450951, x=6442450952] [L80] COND TRUE !isinf_float(res) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=6442450951, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 66 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:30:38,334 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:30:38,336 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:30:38,358 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:30:38,359 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:30:38,360 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:30:38,361 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:30:38,363 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:30:38,365 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:30:38,365 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:30:38,366 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:30:38,367 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:30:38,368 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:30:38,369 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:30:38,370 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:30:38,371 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:30:38,371 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:30:38,373 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:30:38,375 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:30:38,377 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:30:38,378 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:30:38,379 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:30:38,382 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:30:38,382 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:30:38,383 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:30:38,384 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:30:38,385 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:30:38,386 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:30:38,386 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:30:38,388 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:30:38,388 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:30:38,389 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:30:38,389 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:30:38,389 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:30:38,390 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:30:38,391 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:30:38,391 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:30:38,411 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:30:38,411 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:30:38,412 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:30:38,413 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:30:38,413 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:30:38,413 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:30:38,414 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:30:38,414 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:30:38,414 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:30:38,414 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:30:38,415 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:30:38,416 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:30:38,416 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:30:38,416 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:30:38,416 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:30:38,416 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:30:38,416 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:30:38,417 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:30:38,417 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:30:38,417 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:30:38,417 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:30:38,419 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:30:38,419 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:30:38,419 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:30:38,419 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:30:38,420 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:30:38,420 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:30:38,420 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:30:38,420 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:30:38,420 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:30:38,421 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:30:38,422 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 -> 515d13351b6efee56e7d1331680e6aaafc770d9e [2018-09-20 15:30:38,491 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:30:38,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:30:38,518 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:30:38,519 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:30:38,520 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:30:38,521 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092c_true-unreach-call.c [2018-09-20 15:30:38,901 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3626d6ad5/1dd58563b74c4715862af791078b476e/FLAG8c10224d4 [2018-09-20 15:30:39,108 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:30:39,110 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1092c_true-unreach-call.c [2018-09-20 15:30:39,120 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3626d6ad5/1dd58563b74c4715862af791078b476e/FLAG8c10224d4 [2018-09-20 15:30:39,151 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3626d6ad5/1dd58563b74c4715862af791078b476e [2018-09-20 15:30:39,157 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:30:39,164 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:30:39,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:39,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:30:39,178 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:30:39,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:39" (1/1) ... [2018-09-20 15:30:39,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45f97729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:39, skipping insertion in model container [2018-09-20 15:30:39,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:39" (1/1) ... [2018-09-20 15:30:39,196 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:30:39,481 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:39,507 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:30:39,545 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:39,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:39 WrapperNode [2018-09-20 15:30:39,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:39,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:30:39,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:30:39,603 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:30:39,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:39" (1/1) ... [2018-09-20 15:30:39,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:39" (1/1) ... [2018-09-20 15:30:39,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:39" (1/1) ... [2018-09-20 15:30:39,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:39" (1/1) ... [2018-09-20 15:30:39,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:39" (1/1) ... [2018-09-20 15:30:39,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:39" (1/1) ... [2018-09-20 15:30:39,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:39" (1/1) ... [2018-09-20 15:30:39,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:30:39,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:30:39,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:30:39,690 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:30:39,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:30:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:30:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:30:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-09-20 15:30:39,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-20 15:30:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:30:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:30:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-09-20 15:30:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:30:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:30:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:30:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:30:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:30:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:30:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-20 15:30:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:30:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:30:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:30:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:30:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:30:40,314 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:40,342 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:40,782 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:40,799 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:40,830 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:30:40,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:40 BoogieIcfgContainer [2018-09-20 15:30:40,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:30:40,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:30:40,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:30:40,838 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:30:40,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:30:39" (1/3) ... [2018-09-20 15:30:40,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7376a64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:40, skipping insertion in model container [2018-09-20 15:30:40,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:39" (2/3) ... [2018-09-20 15:30:40,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7376a64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:40, skipping insertion in model container [2018-09-20 15:30:40,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:40" (3/3) ... [2018-09-20 15:30:40,842 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092c_true-unreach-call.c [2018-09-20 15:30:40,853 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:30:40,862 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:30:40,917 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:30:40,918 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:30:40,918 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:30:40,919 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:30:40,919 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:30:40,919 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:30:40,919 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:30:40,919 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:30:40,919 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:30:40,942 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-09-20 15:30:40,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-20 15:30:40,950 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:40,952 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] [2018-09-20 15:30:40,955 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:40,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1579053841, now seen corresponding path program 1 times [2018-09-20 15:30:40,967 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:40,967 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) [2018-09-20 15:30:40,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:30:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:41,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:30:41,092 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:41,108 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:41,108 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:30:41,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:30:41,124 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:30:41,125 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:30:41,127 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2018-09-20 15:30:41,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:41,157 INFO L93 Difference]: Finished difference Result 122 states and 153 transitions. [2018-09-20 15:30:41,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:30:41,158 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-20 15:30:41,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:41,170 INFO L225 Difference]: With dead ends: 122 [2018-09-20 15:30:41,170 INFO L226 Difference]: Without dead ends: 61 [2018-09-20 15:30:41,174 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 15:30:41,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-09-20 15:30:41,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-09-20 15:30:41,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-20 15:30:41,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2018-09-20 15:30:41,220 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 23 [2018-09-20 15:30:41,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:41,221 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2018-09-20 15:30:41,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:30:41,221 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2018-09-20 15:30:41,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-20 15:30:41,223 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:41,224 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, 1, 1, 1] [2018-09-20 15:30:41,224 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:41,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1192456100, now seen corresponding path program 1 times [2018-09-20 15:30:41,226 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:41,226 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 15:30:41,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:41,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:42,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:30:42,166 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:30:42,167 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:42,174 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:42,188 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:42,189 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:30:42,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:30:42,334 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:30:42,335 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:42,338 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:42,343 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:42,344 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:30:43,297 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 15:30:43,298 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:43,312 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:43,313 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-20 15:30:43,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-20 15:30:43,316 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-20 15:30:43,317 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:30:43,317 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand 13 states. [2018-09-20 15:30:44,277 WARN L178 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:30:47,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:47,076 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2018-09-20 15:30:47,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-20 15:30:47,079 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2018-09-20 15:30:47,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:47,083 INFO L225 Difference]: With dead ends: 70 [2018-09-20 15:30:47,084 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:30:47,086 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2018-09-20 15:30:47,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:30:47,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2018-09-20 15:30:47,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-20 15:30:47,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2018-09-20 15:30:47,100 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 41 [2018-09-20 15:30:47,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:47,101 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2018-09-20 15:30:47,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-20 15:30:47,101 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2018-09-20 15:30:47,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-20 15:30:47,104 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:47,104 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, 1, 1, 1] [2018-09-20 15:30:47,104 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:47,105 INFO L82 PathProgramCache]: Analyzing trace with hash -981105187, now seen corresponding path program 1 times [2018-09-20 15:30:47,106 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:47,106 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) [2018-09-20 15:30:47,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:30:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:47,183 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:47,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:30:47,244 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:30:47,245 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:47,253 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:47,264 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:47,265 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:30:47,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:30:47,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:30:47,310 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:47,319 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:47,322 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:47,323 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:30:47,471 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 15:30:47,471 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:47,483 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:47,484 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:30:47,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:30:47,485 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:30:47,485 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:30:47,486 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand 9 states. [2018-09-20 15:30:49,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:49,027 INFO L93 Difference]: Finished difference Result 111 states and 117 transitions. [2018-09-20 15:30:49,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-20 15:30:49,028 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-09-20 15:30:49,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:49,031 INFO L225 Difference]: With dead ends: 111 [2018-09-20 15:30:49,031 INFO L226 Difference]: Without dead ends: 76 [2018-09-20 15:30:49,032 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:30:49,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-20 15:30:49,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 60. [2018-09-20 15:30:49,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-20 15:30:49,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-09-20 15:30:49,057 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 41 [2018-09-20 15:30:49,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:49,058 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-09-20 15:30:49,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:30:49,058 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-09-20 15:30:49,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-20 15:30:49,060 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:49,060 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, 1, 1, 1, 1] [2018-09-20 15:30:49,064 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:49,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1790384710, now seen corresponding path program 1 times [2018-09-20 15:30:49,065 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:49,065 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 15:30:49,078 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 15:30:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:49,164 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:49,241 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:30:49,245 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:30:49,245 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:49,249 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:49,261 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:49,262 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:30:49,285 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:30:49,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:30:49,296 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:49,299 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:49,305 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:49,305 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:30:49,442 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 15:30:49,442 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:49,456 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:49,456 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:30:49,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:30:49,457 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:30:49,457 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:30:49,461 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 9 states. [2018-09-20 15:30:50,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:50,756 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2018-09-20 15:30:50,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:30:50,757 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-09-20 15:30:50,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:50,757 INFO L225 Difference]: With dead ends: 76 [2018-09-20 15:30:50,757 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:30:50,758 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:30:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:30:50,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:30:50,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:30:50,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:30:50,759 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2018-09-20 15:30:50,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:50,760 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:30:50,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:30:50,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:30:50,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:30:50,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:30:51,052 INFO L426 ceAbstractionStarter]: For program point L62(line 62) no Hoare annotation was computed. [2018-09-20 15:30:51,053 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-20 15:30:51,053 INFO L426 ceAbstractionStarter]: For program point L62-1(line 62) no Hoare annotation was computed. [2018-09-20 15:30:51,053 INFO L426 ceAbstractionStarter]: For program point L60(line 60) no Hoare annotation was computed. [2018-09-20 15:30:51,053 INFO L426 ceAbstractionStarter]: For program point L62-2(line 62) no Hoare annotation was computed. [2018-09-20 15:30:51,054 INFO L426 ceAbstractionStarter]: For program point L60-1(line 60) no Hoare annotation was computed. [2018-09-20 15:30:51,055 INFO L426 ceAbstractionStarter]: For program point L60-2(line 60) no Hoare annotation was computed. [2018-09-20 15:30:51,055 INFO L426 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-09-20 15:30:51,055 INFO L426 ceAbstractionStarter]: For program point L60-3(line 60) no Hoare annotation was computed. [2018-09-20 15:30:51,055 INFO L422 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-09-20 15:30:51,056 INFO L426 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-09-20 15:30:51,056 INFO L429 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 57 66) the Hoare annotation is: true [2018-09-20 15:30:51,056 INFO L426 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 57 66) no Hoare annotation was computed. [2018-09-20 15:30:51,056 INFO L426 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 57 66) no Hoare annotation was computed. [2018-09-20 15:30:51,056 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:30:51,056 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:30:51,057 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:30:51,057 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:30:51,057 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:30:51,057 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:30:51,057 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:30:51,060 INFO L426 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2018-09-20 15:30:51,061 INFO L422 ceAbstractionStarter]: At program point L80(line 80) the Hoare annotation is: (let ((.cse0 (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= (fp.add RNE .cse0 .cse0) main_~res~0))) [2018-09-20 15:30:51,061 INFO L426 ceAbstractionStarter]: For program point L80-1(lines 80 83) no Hoare annotation was computed. [2018-09-20 15:30:51,061 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 68 86) the Hoare annotation is: true [2018-09-20 15:30:51,061 INFO L422 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (= (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)) main_~x~0) [2018-09-20 15:30:51,062 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 68 86) no Hoare annotation was computed. [2018-09-20 15:30:51,062 INFO L426 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-09-20 15:30:51,062 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2018-09-20 15:30:51,063 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 68 86) no Hoare annotation was computed. [2018-09-20 15:30:51,063 INFO L426 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-09-20 15:30:51,063 INFO L426 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-09-20 15:30:51,063 INFO L426 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-09-20 15:30:51,063 INFO L426 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2018-09-20 15:30:51,063 INFO L426 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-09-20 15:30:51,063 INFO L426 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-09-20 15:30:51,064 INFO L426 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-09-20 15:30:51,064 INFO L426 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-09-20 15:30:51,064 INFO L429 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-09-20 15:30:51,064 INFO L426 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-09-20 15:30:51,064 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-09-20 15:30:51,064 INFO L426 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-09-20 15:30:51,074 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-20 15:30:51,074 INFO L426 ceAbstractionStarter]: For program point L49-1(line 49) no Hoare annotation was computed. [2018-09-20 15:30:51,074 INFO L426 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-09-20 15:30:51,074 INFO L426 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-09-20 15:30:51,074 INFO L426 ceAbstractionStarter]: For program point L49-3(line 49) no Hoare annotation was computed. [2018-09-20 15:30:51,075 INFO L422 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= |ceil_float_#in~x| ceil_float_~x) [2018-09-20 15:30:51,075 INFO L426 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-09-20 15:30:51,075 INFO L426 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-09-20 15:30:51,075 INFO L426 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-09-20 15:30:51,075 INFO L426 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-09-20 15:30:51,075 INFO L426 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-09-20 15:30:51,075 INFO L426 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-09-20 15:30:51,076 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-20 15:30:51,076 INFO L426 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-09-20 15:30:51,076 INFO L426 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-09-20 15:30:51,076 INFO L426 ceAbstractionStarter]: For program point L17-3(line 17) no Hoare annotation was computed. [2018-09-20 15:30:51,076 INFO L426 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-09-20 15:30:51,076 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-09-20 15:30:51,083 INFO L426 ceAbstractionStarter]: For program point L51(line 51) no Hoare annotation was computed. [2018-09-20 15:30:51,083 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-20 15:30:51,083 INFO L426 ceAbstractionStarter]: For program point L51-1(line 51) no Hoare annotation was computed. [2018-09-20 15:30:51,083 INFO L426 ceAbstractionStarter]: For program point L51-2(line 51) no Hoare annotation was computed. [2018-09-20 15:30:51,083 INFO L426 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-09-20 15:30:51,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:30:51 BoogieIcfgContainer [2018-09-20 15:30:51,105 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:30:51,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:30:51,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:30:51,107 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:30:51,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:40" (3/4) ... [2018-09-20 15:30:51,113 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:30:51,120 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:30:51,120 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-20 15:30:51,121 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:30:51,121 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-09-20 15:30:51,127 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-09-20 15:30:51,127 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 15:30:51,127 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:30:51,159 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:30:51,159 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:30:51,198 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:30:51,198 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:30:51,199 INFO L168 Benchmark]: Toolchain (without parser) took 12041.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 951.8 MB in the beginning and 794.2 MB in the end (delta: 157.7 MB). Peak memory consumption was 249.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:51,200 INFO L168 Benchmark]: CDTParser took 0.20 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 15:30:51,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.25 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 939.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:51,205 INFO L168 Benchmark]: Boogie Preprocessor took 86.38 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:51,205 INFO L168 Benchmark]: RCFGBuilder took 1141.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -118.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:51,207 INFO L168 Benchmark]: TraceAbstraction took 10273.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 794.2 MB in the end (delta: 259.0 MB). Peak memory consumption was 259.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:51,211 INFO L168 Benchmark]: Witness Printer took 91.47 ms. Allocated memory is still 1.1 GB. Free memory is still 794.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:30:51,216 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 437.25 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 939.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 86.38 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1141.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -118.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10273.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 794.2 MB in the end (delta: 259.0 MB). Peak memory consumption was 259.0 MB. Max. memory is 11.5 GB. * Witness Printer took 91.47 ms. Allocated memory is still 1.1 GB. Free memory is still 794.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 81]: 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: 59]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 65 locations, 1 error locations. SAFE Result, 10.1s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 6.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 211 SDtfs, 285 SDslu, 943 SDs, 0 SdLazy, 451 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 45 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 143 ConstructedInterpolants, 11 QuantifiedInterpolants, 28749 SizeOfPredicates, 26 NumberOfNonLiveVariables, 320 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...