/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1031_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/double_req_bl_1031_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 b9e27277237c869a286fcb7699394ad2f7d80117 ..................................................................................................................................................................................................................................................................................................... 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/double_req_bl_1031_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 b9e27277237c869a286fcb7699394ad2f7d80117 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 15:01:51,270 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:01:51,273 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:01:51,286 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:01:51,286 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:01:51,287 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:01:51,288 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:01:51,290 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:01:51,292 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:01:51,293 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:01:51,294 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:01:51,294 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:01:51,295 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:01:51,296 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:01:51,297 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:01:51,298 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:01:51,299 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:01:51,301 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:01:51,303 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:01:51,304 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:01:51,305 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:01:51,306 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:01:51,313 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:01:51,313 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:01:51,313 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:01:51,318 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:01:51,319 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:01:51,320 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:01:51,321 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:01:51,322 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:01:51,322 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:01:51,322 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:01:51,323 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:01:51,323 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:01:51,325 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:01:51,326 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:01:51,328 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:01:51,355 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:01:51,355 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:01:51,356 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:01:51,359 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:01:51,360 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:01:51,360 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:01:51,360 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:01:51,361 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:01:51,361 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:01:51,361 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:01:51,361 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:01:51,363 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:01:51,363 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:01:51,364 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:01:51,364 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:01:51,364 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:01:51,365 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:01:51,365 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:01:51,365 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:01:51,365 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:01:51,365 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:01:51,365 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:01:51,366 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:01:51,366 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:01:51,366 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:01:51,366 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:01:51,366 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:01:51,368 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:01:51,368 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:01:51,368 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 -> b9e27277237c869a286fcb7699394ad2f7d80117 [2018-09-20 15:01:51,441 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:01:51,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:01:51,464 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:01:51,466 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:01:51,467 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:01:51,467 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1031_true-unreach-call.c [2018-09-20 15:01:51,820 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/431e7856d/6fc1e1a4912642d78a09cf3dfb229d94/FLAGd11a42b12 [2018-09-20 15:01:52,026 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:01:52,027 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1031_true-unreach-call.c [2018-09-20 15:01:52,038 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/431e7856d/6fc1e1a4912642d78a09cf3dfb229d94/FLAGd11a42b12 [2018-09-20 15:01:52,057 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/431e7856d/6fc1e1a4912642d78a09cf3dfb229d94 [2018-09-20 15:01:52,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:01:52,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:01:52,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:52,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:01:52,072 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:01:52,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386dc6d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52, skipping insertion in model container [2018-09-20 15:01:52,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,089 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:01:52,326 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:52,346 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:01:52,365 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:52,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52 WrapperNode [2018-09-20 15:01:52,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:52,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:01:52,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:01:52,408 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:01:52,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:01:52,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:01:52,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:01:52,465 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:01:52,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (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 15:01:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:01:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:01:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:01:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-09-20 15:01:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:01:52,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:01:52,551 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:01:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-09-20 15:01:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:01:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:01:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:01:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:01:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:01:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:01:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:01:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:01:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:01:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:01:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:01:53,237 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:01:53,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:53 BoogieIcfgContainer [2018-09-20 15:01:53,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:01:53,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:01:53,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:01:53,244 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:01:53,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:01:52" (1/3) ... [2018-09-20 15:01:53,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446f12ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:53, skipping insertion in model container [2018-09-20 15:01:53,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (2/3) ... [2018-09-20 15:01:53,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446f12ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:53, skipping insertion in model container [2018-09-20 15:01:53,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:53" (3/3) ... [2018-09-20 15:01:53,249 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031_true-unreach-call.c [2018-09-20 15:01:53,259 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:01:53,270 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:01:53,317 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:01:53,318 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:01:53,319 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:01:53,319 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:01:53,319 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:01:53,319 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:01:53,319 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:01:53,319 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:01:53,319 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:01:53,352 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-09-20 15:01:53,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-20 15:01:53,360 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:53,361 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 15:01:53,364 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:53,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1808211580, now seen corresponding path program 1 times [2018-09-20 15:01:53,372 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:01:53,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:01:53,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:53,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:53,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:01:53,512 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 15:01:53,515 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:01:53,515 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:01:53,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:01:53,535 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:01:53,535 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:01:53,538 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-09-20 15:01:53,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:01:53,565 INFO L93 Difference]: Finished difference Result 114 states and 138 transitions. [2018-09-20 15:01:53,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:01:53,568 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-20 15:01:53,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:01:53,584 INFO L225 Difference]: With dead ends: 114 [2018-09-20 15:01:53,584 INFO L226 Difference]: Without dead ends: 57 [2018-09-20 15:01:53,591 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 15:01:53,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-20 15:01:53,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-09-20 15:01:53,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-09-20 15:01:53,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2018-09-20 15:01:53,636 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 23 [2018-09-20 15:01:53,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:01:53,637 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2018-09-20 15:01:53,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:01:53,637 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2018-09-20 15:01:53,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-20 15:01:53,639 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:53,640 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:01:53,640 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:53,640 INFO L82 PathProgramCache]: Analyzing trace with hash 273977880, now seen corresponding path program 1 times [2018-09-20 15:01:53,643 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:01:53,644 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:01:53,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:53,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:53,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:01:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:01:53,779 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:01:53,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:01:53 BoogieIcfgContainer [2018-09-20 15:01:53,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:01:53,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:01:53,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:01:53,813 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:01:53,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:53" (3/4) ... [2018-09-20 15:01:53,817 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:01:53,817 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:01:53,818 INFO L168 Benchmark]: Toolchain (without parser) took 1756.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -144.0 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:53,820 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:01:53,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.85 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:53,822 INFO L168 Benchmark]: Boogie Preprocessor took 56.59 ms. Allocated memory is still 1.0 GB. Free memory is still 939.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:01:53,822 INFO L168 Benchmark]: RCFGBuilder took 773.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:53,824 INFO L168 Benchmark]: TraceAbstraction took 572.49 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:53,825 INFO L168 Benchmark]: Witness Printer took 4.71 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 15:01:53,829 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 341.85 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.59 ms. Allocated memory is still 1.0 GB. Free memory is still 939.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 773.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 572.49 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.71 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: 79]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 43, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L74] double x = 0.0 / 0.0; [L75] CALL, EXPR round_double(x) VAL [\old(x)=11] [L18] __int32_t msw, exponent_less_1023; [L19] __uint32_t lsw; VAL [\old(x)=11, x=11] [L21] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=11, ew_u={14:0}, x=11] [L22] FCALL ew_u.value = (x) VAL [\old(x)=11, ew_u={14:0}, x=11] [L23] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=11, ew_u={14:0}, ew_u.parts.msw=3, x=11] [L23] (msw) = ew_u.parts.msw VAL [\old(x)=11, ew_u={14:0}, ew_u.parts.msw=3, msw=3, x=11] [L23] FCALL (msw) = ew_u.parts.msw VAL [(msw) = ew_u.parts.msw=9, \old(x)=11, ew_u={14:0}, ew_u.parts.msw=3, msw=3, x=11] [L24] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=11, ew_u={14:0}, ew_u.parts.lsw=13, msw=3, x=11] [L24] (lsw) = ew_u.parts.lsw VAL [\old(x)=11, ew_u={14:0}, ew_u.parts.lsw=13, lsw=13, msw=3, x=11] [L24] FCALL (lsw) = ew_u.parts.lsw VAL [(lsw) = ew_u.parts.lsw=12, \old(x)=11, ew_u={14:0}, ew_u.parts.lsw=13, lsw=13, msw=3, x=11] [L25] COND FALSE !(0) VAL [\old(x)=11, lsw=13, msw=3, x=11] [L26] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=11, exponent_less_1023=1024, lsw=13, msw=3, x=11] [L27] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=11, exponent_less_1023=1024, lsw=13, msw=3, x=11] [L41] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=11, exponent_less_1023=1024, lsw=13, msw=3, x=11] [L42] COND TRUE exponent_less_1023 == 1024 [L43] RET return x + x; VAL [\old(x)=11, exponent_less_1023=1024, lsw=13, msw=3, x=11] [L75] EXPR round_double(x) VAL [round_double(x)=15, x=11] [L75] double res = round_double(x); [L78] CALL, EXPR isnan_double(res) VAL [\old(x)=15] [L15] RET return x != x; VAL [\old(x)=15, \result=0, x=15] [L78] EXPR isnan_double(res) VAL [isnan_double(res)=0, res=15, x=11] [L78] COND TRUE !isnan_double(res) [L79] __VERIFIER_error() VAL [res=15, x=11] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 61 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 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=61occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:01:56,126 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:01:56,128 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:01:56,140 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:01:56,141 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:01:56,142 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:01:56,143 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:01:56,145 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:01:56,147 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:01:56,147 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:01:56,148 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:01:56,149 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:01:56,150 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:01:56,151 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:01:56,152 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:01:56,153 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:01:56,154 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:01:56,156 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:01:56,158 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:01:56,160 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:01:56,161 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:01:56,162 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:01:56,165 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:01:56,165 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:01:56,165 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:01:56,166 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:01:56,168 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:01:56,168 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:01:56,169 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:01:56,171 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:01:56,171 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:01:56,172 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:01:56,172 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:01:56,173 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:01:56,174 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:01:56,175 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:01:56,175 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:01:56,190 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:01:56,190 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:01:56,191 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:01:56,191 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:01:56,192 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:01:56,192 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:01:56,192 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:01:56,193 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:01:56,193 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:01:56,193 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:01:56,193 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:01:56,193 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:01:56,194 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:01:56,195 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:01:56,195 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:01:56,195 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:01:56,195 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:01:56,196 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:01:56,196 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:01:56,196 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:01:56,196 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:01:56,197 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:01:56,197 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:01:56,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:01:56,197 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:01:56,197 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:01:56,198 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:01:56,198 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:01:56,198 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:01:56,198 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:01:56,198 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:01:56,200 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 -> b9e27277237c869a286fcb7699394ad2f7d80117 [2018-09-20 15:01:56,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:01:56,263 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:01:56,267 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:01:56,269 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:01:56,269 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:01:56,270 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1031_true-unreach-call.c [2018-09-20 15:01:56,669 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62d2bc02b/b05804326f9c480098a39be8f9dc3338/FLAG5860c3ab4 [2018-09-20 15:01:56,828 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:01:56,829 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1031_true-unreach-call.c [2018-09-20 15:01:56,837 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62d2bc02b/b05804326f9c480098a39be8f9dc3338/FLAG5860c3ab4 [2018-09-20 15:01:56,852 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62d2bc02b/b05804326f9c480098a39be8f9dc3338 [2018-09-20 15:01:56,857 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:01:56,860 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:01:56,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:56,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:01:56,869 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:01:56,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:56" (1/1) ... [2018-09-20 15:01:56,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@453ca601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:56, skipping insertion in model container [2018-09-20 15:01:56,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:56" (1/1) ... [2018-09-20 15:01:56,886 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:01:57,112 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:57,135 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:01:57,180 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:57,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57 WrapperNode [2018-09-20 15:01:57,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:57,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:01:57,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:01:57,246 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:01:57,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:01:57,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:01:57,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:01:57,333 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:01:57,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (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 15:01:57,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:01:57,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:01:57,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:01:57,471 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-09-20 15:01:57,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:01:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:01:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:01:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-09-20 15:01:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:01:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:01:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:01:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:01:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:01:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:01:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:01:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:01:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:01:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:01:57,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:01:57,790 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:57,837 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:57,870 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:58,116 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:01:58,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:58 BoogieIcfgContainer [2018-09-20 15:01:58,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:01:58,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:01:58,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:01:58,121 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:01:58,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:01:56" (1/3) ... [2018-09-20 15:01:58,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6892885e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:58, skipping insertion in model container [2018-09-20 15:01:58,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (2/3) ... [2018-09-20 15:01:58,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6892885e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:58, skipping insertion in model container [2018-09-20 15:01:58,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:58" (3/3) ... [2018-09-20 15:01:58,128 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031_true-unreach-call.c [2018-09-20 15:01:58,138 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:01:58,147 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:01:58,199 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:01:58,200 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:01:58,200 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:01:58,200 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:01:58,201 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:01:58,201 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:01:58,201 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:01:58,201 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:01:58,201 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:01:58,223 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-09-20 15:01:58,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:01:58,231 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:58,232 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] [2018-09-20 15:01:58,235 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:58,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1895794015, now seen corresponding path program 1 times [2018-09-20 15:01:58,246 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:01:58,246 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:01:58,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:01:58,318 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:01:58,340 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 15:01:58,340 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:01:58,357 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:01:58,357 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:01:58,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:01:58,374 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:01:58,375 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:01:58,378 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-09-20 15:01:58,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:01:58,410 INFO L93 Difference]: Finished difference Result 112 states and 136 transitions. [2018-09-20 15:01:58,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:01:58,412 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:01:58,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:01:58,429 INFO L225 Difference]: With dead ends: 112 [2018-09-20 15:01:58,430 INFO L226 Difference]: Without dead ends: 56 [2018-09-20 15:01:58,435 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:01:58,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-20 15:01:58,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-09-20 15:01:58,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-20 15:01:58,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2018-09-20 15:01:58,481 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 22 [2018-09-20 15:01:58,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:01:58,481 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2018-09-20 15:01:58,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:01:58,482 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2018-09-20 15:01:58,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-20 15:01:58,483 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:58,484 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:01:58,484 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:58,484 INFO L82 PathProgramCache]: Analyzing trace with hash -937019230, now seen corresponding path program 1 times [2018-09-20 15:01:58,485 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:01:58,485 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-20 15:01:58,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:01:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:01:58,560 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:01:59,101 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 15:01:59,101 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:01:59,113 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:01:59,113 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:01:59,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:01:59,115 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:01:59,115 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:01:59,115 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand 9 states. [2018-09-20 15:02:00,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:00,376 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2018-09-20 15:02:00,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:02:00,378 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-09-20 15:02:00,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:00,385 INFO L225 Difference]: With dead ends: 65 [2018-09-20 15:02:00,385 INFO L226 Difference]: Without dead ends: 58 [2018-09-20 15:02:00,390 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:02:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-20 15:02:00,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2018-09-20 15:02:00,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-20 15:02:00,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-09-20 15:02:00,411 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 35 [2018-09-20 15:02:00,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:00,413 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-09-20 15:02:00,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:00,413 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-09-20 15:02:00,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-20 15:02:00,414 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:00,415 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:00,415 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:00,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1239227025, now seen corresponding path program 1 times [2018-09-20 15:02:00,416 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:00,416 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:00,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:00,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:01,946 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 15:02:01,946 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:01,962 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:01,962 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:01,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:01,963 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:01,963 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:01,963 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 9 states. [2018-09-20 15:02:03,489 WARN L178 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:02:04,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:04,454 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2018-09-20 15:02:04,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:02:04,455 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-09-20 15:02:04,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:04,456 INFO L225 Difference]: With dead ends: 63 [2018-09-20 15:02:04,457 INFO L226 Difference]: Without dead ends: 55 [2018-09-20 15:02:04,457 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:02:04,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-09-20 15:02:04,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-09-20 15:02:04,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-09-20 15:02:04,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-09-20 15:02:04,465 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 35 [2018-09-20 15:02:04,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:04,465 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-09-20 15:02:04,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:04,466 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-09-20 15:02:04,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-20 15:02:04,467 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:04,467 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, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:04,468 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:04,468 INFO L82 PathProgramCache]: Analyzing trace with hash -185050370, now seen corresponding path program 1 times [2018-09-20 15:02:04,469 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:04,469 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:04,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:04,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:04,627 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 14 treesize of output 11 [2018-09-20 15:02:04,633 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 11 treesize of output 10 [2018-09-20 15:02:04,633 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:04,638 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:04,657 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:04,658 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:04,709 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 20 treesize of output 16 [2018-09-20 15:02:04,718 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 16 treesize of output 4 [2018-09-20 15:02:04,719 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:04,722 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:04,733 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:04,733 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:05,134 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 15:02:05,135 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:05,152 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:05,152 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:05,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:05,153 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:05,153 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:05,153 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 9 states. [2018-09-20 15:02:06,304 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:02:07,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:07,392 INFO L93 Difference]: Finished difference Result 94 states and 96 transitions. [2018-09-20 15:02:07,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-20 15:02:07,393 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-09-20 15:02:07,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:07,396 INFO L225 Difference]: With dead ends: 94 [2018-09-20 15:02:07,396 INFO L226 Difference]: Without dead ends: 67 [2018-09-20 15:02:07,397 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-09-20 15:02:07,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-09-20 15:02:07,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 51. [2018-09-20 15:02:07,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-20 15:02:07,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-09-20 15:02:07,407 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 48 [2018-09-20 15:02:07,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:07,408 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-09-20 15:02:07,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:07,408 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-09-20 15:02:07,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 15:02:07,410 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:07,410 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:07,410 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:07,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1838898163, now seen corresponding path program 1 times [2018-09-20 15:02:07,411 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:07,411 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:07,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:07,502 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:07,534 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 14 treesize of output 11 [2018-09-20 15:02:07,543 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 11 treesize of output 10 [2018-09-20 15:02:07,543 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:07,548 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:07,563 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:07,563 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:07,619 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 20 treesize of output 16 [2018-09-20 15:02:07,624 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 16 treesize of output 4 [2018-09-20 15:02:07,625 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:07,628 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:07,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:07,639 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:07,961 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 15:02:07,961 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:07,978 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:07,978 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-20 15:02:07,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-20 15:02:07,979 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-20 15:02:07,979 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:02:07,980 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 10 states. [2018-09-20 15:02:09,478 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-09-20 15:02:10,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:10,042 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2018-09-20 15:02:10,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-20 15:02:10,044 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2018-09-20 15:02:10,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:10,044 INFO L225 Difference]: With dead ends: 67 [2018-09-20 15:02:10,044 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:02:10,045 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:02:10,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:02:10,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:02:10,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:02:10,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:02:10,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-09-20 15:02:10,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:10,047 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:02:10,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-20 15:02:10,047 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:02:10,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:02:10,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:02:10,264 INFO L429 ceAbstractionStarter]: At program point isnan_doubleENTRY(line 15) the Hoare annotation is: true [2018-09-20 15:02:10,264 INFO L426 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 15) no Hoare annotation was computed. [2018-09-20 15:02:10,264 INFO L426 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 15) no Hoare annotation was computed. [2018-09-20 15:02:10,264 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:10,264 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:10,264 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:10,265 INFO L426 ceAbstractionStarter]: For program point L60(line 60) no Hoare annotation was computed. [2018-09-20 15:02:10,265 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 56) no Hoare annotation was computed. [2018-09-20 15:02:10,265 INFO L426 ceAbstractionStarter]: For program point round_doubleFINAL(lines 17 64) no Hoare annotation was computed. [2018-09-20 15:02:10,265 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:02:10,265 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:02:10,265 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:02:10,265 INFO L426 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2018-09-20 15:02:10,265 INFO L426 ceAbstractionStarter]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2018-09-20 15:02:10,266 INFO L429 ceAbstractionStarter]: At program point round_doubleENTRY(lines 17 64) the Hoare annotation is: true [2018-09-20 15:02:10,266 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-20 15:02:10,266 INFO L426 ceAbstractionStarter]: For program point L28(lines 28 40) no Hoare annotation was computed. [2018-09-20 15:02:10,266 INFO L426 ceAbstractionStarter]: For program point L61-1(line 61) no Hoare annotation was computed. [2018-09-20 15:02:10,266 INFO L426 ceAbstractionStarter]: For program point L61-2(line 61) no Hoare annotation was computed. [2018-09-20 15:02:10,266 INFO L426 ceAbstractionStarter]: For program point L61-3(line 61) no Hoare annotation was computed. [2018-09-20 15:02:10,266 INFO L426 ceAbstractionStarter]: For program point L57(lines 57 62) no Hoare annotation was computed. [2018-09-20 15:02:10,266 INFO L426 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-09-20 15:02:10,267 INFO L426 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-09-20 15:02:10,267 INFO L426 ceAbstractionStarter]: For program point L57-2(lines 17 64) no Hoare annotation was computed. [2018-09-20 15:02:10,267 INFO L426 ceAbstractionStarter]: For program point round_doubleEXIT(lines 17 64) no Hoare annotation was computed. [2018-09-20 15:02:10,267 INFO L426 ceAbstractionStarter]: For program point L24-2(line 24) no Hoare annotation was computed. [2018-09-20 15:02:10,267 INFO L426 ceAbstractionStarter]: For program point L57-3(lines 57 62) no Hoare annotation was computed. [2018-09-20 15:02:10,267 INFO L426 ceAbstractionStarter]: For program point L24-3(line 24) no Hoare annotation was computed. [2018-09-20 15:02:10,268 INFO L426 ceAbstractionStarter]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2018-09-20 15:02:10,269 INFO L422 ceAbstractionStarter]: At program point L20-3(lines 20 25) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-09-20 15:02:10,269 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-09-20 15:02:10,269 INFO L426 ceAbstractionStarter]: For program point L20-4(lines 20 25) no Hoare annotation was computed. [2018-09-20 15:02:10,269 INFO L426 ceAbstractionStarter]: For program point L41(lines 41 56) no Hoare annotation was computed. [2018-09-20 15:02:10,270 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-20 15:02:10,270 INFO L426 ceAbstractionStarter]: For program point L58-1(line 58) no Hoare annotation was computed. [2018-09-20 15:02:10,270 INFO L426 ceAbstractionStarter]: For program point L58-2(line 58) no Hoare annotation was computed. [2018-09-20 15:02:10,270 INFO L426 ceAbstractionStarter]: For program point L58-3(line 58) no Hoare annotation was computed. [2018-09-20 15:02:10,271 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:02:10,271 INFO L426 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-09-20 15:02:10,271 INFO L426 ceAbstractionStarter]: For program point L21-2(line 21) no Hoare annotation was computed. [2018-09-20 15:02:10,271 INFO L426 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2018-09-20 15:02:10,271 INFO L426 ceAbstractionStarter]: For program point L42(lines 42 45) no Hoare annotation was computed. [2018-09-20 15:02:10,271 INFO L426 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2018-09-20 15:02:10,271 INFO L426 ceAbstractionStarter]: For program point L30-2(lines 30 31) no Hoare annotation was computed. [2018-09-20 15:02:10,273 INFO L426 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2018-09-20 15:02:10,273 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:02:10,273 INFO L426 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-09-20 15:02:10,273 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:10,273 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:02:10,273 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:10,274 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:10,274 INFO L426 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-09-20 15:02:10,275 INFO L422 ceAbstractionStarter]: At program point L78(line 78) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 11 53) (_ +zero 11 53)))) (and (= main_~res~0 (fp.add RNE .cse0 .cse0)) (= .cse0 main_~x~0))) [2018-09-20 15:02:10,275 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 66 84) the Hoare annotation is: true [2018-09-20 15:02:10,275 INFO L426 ceAbstractionStarter]: For program point L78-1(lines 78 81) no Hoare annotation was computed. [2018-09-20 15:02:10,275 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 66 84) no Hoare annotation was computed. [2018-09-20 15:02:10,275 INFO L422 ceAbstractionStarter]: At program point L75(line 75) the Hoare annotation is: (= (fp.div RNE (_ +zero 11 53) (_ +zero 11 53)) main_~x~0) [2018-09-20 15:02:10,275 INFO L426 ceAbstractionStarter]: For program point L75-1(line 75) no Hoare annotation was computed. [2018-09-20 15:02:10,276 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 66 84) no Hoare annotation was computed. [2018-09-20 15:02:10,277 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 79) no Hoare annotation was computed. [2018-09-20 15:02:10,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:02:10 BoogieIcfgContainer [2018-09-20 15:02:10,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:02:10,289 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:02:10,289 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:02:10,289 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:02:10,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:58" (3/4) ... [2018-09-20 15:02:10,294 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:02:10,301 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-20 15:02:10,301 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:02:10,301 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-09-20 15:02:10,302 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:02:10,307 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-20 15:02:10,308 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-20 15:02:10,308 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:02:10,337 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:02:10,371 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:02:10,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:02:10,372 INFO L168 Benchmark]: Toolchain (without parser) took 13514.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.8 MB in the beginning and 827.1 MB in the end (delta: 124.7 MB). Peak memory consumption was 270.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:10,375 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 15:02:10,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:10,376 INFO L168 Benchmark]: Boogie Preprocessor took 86.01 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:10,377 INFO L168 Benchmark]: RCFGBuilder took 784.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -177.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:10,380 INFO L168 Benchmark]: TraceAbstraction took 12171.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 827.1 MB in the end (delta: 286.4 MB). Peak memory consumption was 286.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:10,381 INFO L168 Benchmark]: Witness Printer took 82.40 ms. Allocated memory is still 1.2 GB. Free memory is still 827.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:10,390 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 384.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 86.01 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 784.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -177.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12171.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 827.1 MB in the end (delta: 286.4 MB). Peak memory consumption was 286.4 MB. Max. memory is 11.5 GB. * Witness Printer took 82.40 ms. Allocated memory is still 1.2 GB. Free memory is still 827.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 79]: 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: 20]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 60 locations, 1 error locations. SAFE Result, 12.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 8.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 259 SDtfs, 263 SDslu, 1070 SDs, 0 SdLazy, 332 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 16 NumberOfFragments, 34 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 185 ConstructedInterpolants, 62 QuantifiedInterpolants, 79272 SizeOfPredicates, 24 NumberOfNonLiveVariables, 375 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...