/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0686a_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 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_0686a_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 6325aa1d97dea13f4033dc32ee324acae8808fcc --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_0686a_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 6325aa1d97dea13f4033dc32ee324acae8808fcc --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 17:52:21,252 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:52:21,254 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:52:21,272 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:52:21,273 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:52:21,275 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:52:21,277 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:52:21,280 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:52:21,283 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:52:21,285 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:52:21,289 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:52:21,289 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:52:21,291 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:52:21,295 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:52:21,302 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:52:21,303 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:52:21,304 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:52:21,308 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:52:21,311 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:52:21,316 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:52:21,321 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:52:21,324 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:52:21,329 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:52:21,329 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:52:21,329 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:52:21,333 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:52:21,335 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:52:21,336 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:52:21,337 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:52:21,341 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:52:21,341 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:52:21,342 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:52:21,342 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:52:21,343 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:52:21,346 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:52:21,347 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:52:21,348 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 17:52:21,374 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:52:21,375 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:52:21,376 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:52:21,376 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:52:21,377 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:52:21,377 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:52:21,377 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:52:21,378 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:52:21,378 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:52:21,378 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 17:52:21,378 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:52:21,378 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:52:21,379 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:52:21,379 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:52:21,379 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:52:21,379 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:52:21,379 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:52:21,380 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:52:21,381 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:52:21,381 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:52:21,381 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:52:21,381 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:52:21,382 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:52:21,382 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:52:21,382 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:52:21,382 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:52:21,382 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 17:52:21,383 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:52:21,383 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 17:52:21,383 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 -> 6325aa1d97dea13f4033dc32ee324acae8808fcc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 17:52:21,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:52:21,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:52:21,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:52:21,471 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:52:21,472 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:52:21,473 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0686a_true-unreach-call.c [2018-09-21 17:52:21,874 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d4e4804/13b53423101846a782d70292462abe34/FLAGf76112711 [2018-09-21 17:52:22,066 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:52:22,067 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0686a_true-unreach-call.c [2018-09-21 17:52:22,077 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d4e4804/13b53423101846a782d70292462abe34/FLAGf76112711 [2018-09-21 17:52:22,093 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d4e4804/13b53423101846a782d70292462abe34 [2018-09-21 17:52:22,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:52:22,102 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:52:22,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:52:22,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:52:22,111 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:52:22,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:52:22" (1/1) ... [2018-09-21 17:52:22,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70ed60bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:22, skipping insertion in model container [2018-09-21 17:52:22,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:52:22" (1/1) ... [2018-09-21 17:52:22,128 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:52:22,408 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:52:22,434 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:52:22,487 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:52:22,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:22 WrapperNode [2018-09-21 17:52:22,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:52:22,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:52:22,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:52:22,551 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:52:22,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:22" (1/1) ... [2018-09-21 17:52:22,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:22" (1/1) ... [2018-09-21 17:52:22,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:22" (1/1) ... [2018-09-21 17:52:22,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:22" (1/1) ... [2018-09-21 17:52:22,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:22" (1/1) ... [2018-09-21 17:52:22,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:22" (1/1) ... [2018-09-21 17:52:22,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:22" (1/1) ... [2018-09-21 17:52:22,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:52:22,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:52:22,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:52:22,666 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:52:22,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:22" (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 [2018-09-21 17:52:22,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:52:22,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:52:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-21 17:52:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-09-21 17:52:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-09-21 17:52:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:52:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:52:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:52:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-21 17:52:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:52:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 17:52:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 17:52:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:52:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 17:52:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 17:52:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-09-21 17:52:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-09-21 17:52:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:52:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:52:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:52:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 17:52:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 17:52:24,035 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:52:24,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:52:24 BoogieIcfgContainer [2018-09-21 17:52:24,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:52:24,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:52:24,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:52:24,041 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:52:24,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:52:22" (1/3) ... [2018-09-21 17:52:24,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41196492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:52:24, skipping insertion in model container [2018-09-21 17:52:24,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:22" (2/3) ... [2018-09-21 17:52:24,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41196492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:52:24, skipping insertion in model container [2018-09-21 17:52:24,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:52:24" (3/3) ... [2018-09-21 17:52:24,044 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686a_true-unreach-call.c [2018-09-21 17:52:24,055 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:52:24,065 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:52:24,105 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:52:24,106 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:52:24,106 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:52:24,106 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:52:24,106 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:52:24,106 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:52:24,107 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:52:24,107 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:52:24,107 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:52:24,127 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2018-09-21 17:52:24,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 17:52:24,139 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:52:24,140 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:52:24,146 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:52:24,150 INFO L82 PathProgramCache]: Analyzing trace with hash -716527358, now seen corresponding path program 1 times [2018-09-21 17:52:24,152 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:52:24,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:52:24,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:52:24,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:52:24,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:52:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:52:24,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:52:24,356 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:52:24,356 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:52:24,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:52:24,378 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:52:24,379 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:52:24,382 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 2 states. [2018-09-21 17:52:24,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:52:24,419 INFO L93 Difference]: Finished difference Result 177 states and 216 transitions. [2018-09-21 17:52:24,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:52:24,420 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 17:52:24,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:52:24,436 INFO L225 Difference]: With dead ends: 177 [2018-09-21 17:52:24,436 INFO L226 Difference]: Without dead ends: 173 [2018-09-21 17:52:24,438 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 [2018-09-21 17:52:24,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-09-21 17:52:24,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-09-21 17:52:24,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-09-21 17:52:24,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 212 transitions. [2018-09-21 17:52:24,502 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 212 transitions. Word has length 18 [2018-09-21 17:52:24,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:52:24,503 INFO L480 AbstractCegarLoop]: Abstraction has 173 states and 212 transitions. [2018-09-21 17:52:24,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:52:24,503 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 212 transitions. [2018-09-21 17:52:24,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-21 17:52:24,509 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:52:24,509 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] [2018-09-21 17:52:24,510 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:52:24,510 INFO L82 PathProgramCache]: Analyzing trace with hash -880272872, now seen corresponding path program 1 times [2018-09-21 17:52:24,510 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:52:24,510 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:52:24,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:52:24,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:52:24,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:52:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:52:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:52:24,740 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 17:52:24,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:52:24 BoogieIcfgContainer [2018-09-21 17:52:24,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:52:24,836 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:52:24,836 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:52:24,836 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:52:24,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:52:24" (3/4) ... [2018-09-21 17:52:24,846 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 17:52:24,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:52:24,848 INFO L168 Benchmark]: Toolchain (without parser) took 2749.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -102.3 MB). Peak memory consumption was 41.8 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:24,851 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. [2018-09-21 17:52:24,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.68 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:24,852 INFO L168 Benchmark]: Boogie Preprocessor took 114.90 ms. Allocated memory is still 1.0 GB. Free memory was 935.8 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:24,854 INFO L168 Benchmark]: RCFGBuilder took 1370.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:24,856 INFO L168 Benchmark]: TraceAbstraction took 797.99 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: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:24,857 INFO L168 Benchmark]: Witness Printer took 11.15 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. [2018-09-21 17:52:24,864 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 446.68 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 114.90 ms. Allocated memory is still 1.0 GB. Free memory was 935.8 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1370.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 797.99 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: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * Witness Printer took 11.15 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: 256]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryDOUBLEComparisonOperation at line 255. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [\old(huge_atan)=6442450968, \old(one_atan)=6442450956, \old(pi)=6442450963, \old(pi_lo_atan2)=6442450955, \old(pi_o_2)=6442450945, \old(pi_o_4)=6442450959, \old(tiny_atan2)=6442450969, \old(zero_atan2)=6442450952, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L250] double x = 1.0 / 0.0; [L251] double y = 1.0 / 0.0; VAL [huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L253] CALL, EXPR __ieee754_atan2(y, x) VAL [\old(x)=6442450962, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [\old(x)=6442450962, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L148] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6442450962, \old(y)=6442450961, ew_u={6442450951:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L149] FCALL ew_u.value = (x) VAL [\old(x)=6442450962, \old(y)=6442450961, ew_u={6442450951:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L150] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6442450962, \old(y)=6442450961, ew_u={6442450951:0}, ew_u.parts.msw=12, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L150] (hx) = ew_u.parts.msw VAL [\old(x)=6442450962, \old(y)=6442450961, ew_u={6442450951:0}, ew_u.parts.msw=12, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L150] FCALL (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=6442450949, \old(x)=6442450962, \old(y)=6442450961, ew_u={6442450951:0}, ew_u.parts.msw=12, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L151] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6442450962, \old(y)=6442450961, ew_u={6442450951:0}, ew_u.parts.lsw=6442450948, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L151] (lx) = ew_u.parts.lsw VAL [\old(x)=6442450962, \old(y)=6442450961, ew_u={6442450951:0}, ew_u.parts.lsw=6442450948, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, lx=6442450948, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L151] FCALL (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=6442450954, \old(x)=6442450962, \old(y)=6442450961, ew_u={6442450951:0}, ew_u.parts.lsw=6442450948, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, lx=6442450948, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L152] COND FALSE !(0) VAL [\old(x)=6442450962, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, lx=6442450948, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L153] ix = hx & 0x7fffffff VAL [\old(x)=6442450962, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, lx=6442450948, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L155] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6442450962, \old(y)=6442450961, ew_u={6442450958:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, lx=6442450948, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L156] FCALL ew_u.value = (y) VAL [\old(x)=6442450962, \old(y)=6442450961, ew_u={6442450958:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, lx=6442450948, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L157] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6442450962, \old(y)=6442450961, ew_u={6442450958:0}, ew_u.parts.msw=6442450944, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, lx=6442450948, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L157] (hy) = ew_u.parts.msw VAL [\old(x)=6442450962, \old(y)=6442450961, ew_u={6442450958:0}, ew_u.parts.msw=6442450944, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, hy=-2147483648, lx=6442450948, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L157] FCALL (hy) = ew_u.parts.msw VAL [(hy) = ew_u.parts.msw=6442450946, \old(x)=6442450962, \old(y)=6442450961, ew_u={6442450958:0}, ew_u.parts.msw=6442450944, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, hy=-2147483648, lx=6442450948, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L158] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6442450962, \old(y)=6442450961, ew_u={6442450958:0}, ew_u.parts.lsw=6442450947, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, hy=-2147483648, lx=6442450948, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L158] (ly) = ew_u.parts.lsw VAL [\old(x)=6442450962, \old(y)=6442450961, ew_u={6442450958:0}, ew_u.parts.lsw=6442450947, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, hy=-2147483648, lx=6442450948, ly=6442450947, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L158] FCALL (ly) = ew_u.parts.lsw VAL [(ly) = ew_u.parts.lsw=6442450953, \old(x)=6442450962, \old(y)=6442450961, ew_u={6442450958:0}, ew_u.parts.lsw=6442450947, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, hy=-2147483648, lx=6442450948, ly=6442450947, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L159] COND FALSE !(0) VAL [\old(x)=6442450962, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, hy=-2147483648, lx=6442450948, ly=6442450947, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L160] iy = hy & 0x7fffffff VAL [\old(x)=6442450962, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, hy=-2147483648, lx=6442450948, ly=6442450947, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] RET return x + y; VAL [\old(x)=6442450962, \old(y)=6442450961, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=12, hy=-2147483648, lx=6442450948, ly=6442450947, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L253] EXPR __ieee754_atan2(y, x) VAL [__ieee754_atan2(y, x)=6442450970, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L253] double res = __ieee754_atan2(y, x); [L255] COND TRUE res != pi_o_4 VAL [huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=6442450970, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] [L256] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=6442450970, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450962, y=6442450961, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 177 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 216 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=177occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 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 0.1.23-5eb3fea [2018-09-21 17:52:27,259 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:52:27,261 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:52:27,277 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:52:27,278 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:52:27,279 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:52:27,280 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:52:27,282 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:52:27,283 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:52:27,284 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:52:27,285 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:52:27,285 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:52:27,286 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:52:27,287 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:52:27,289 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:52:27,291 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:52:27,293 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:52:27,297 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:52:27,304 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:52:27,308 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:52:27,309 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:52:27,313 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:52:27,317 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:52:27,322 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:52:27,322 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:52:27,323 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:52:27,324 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:52:27,325 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:52:27,327 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:52:27,330 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:52:27,332 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:52:27,332 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:52:27,332 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:52:27,333 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:52:27,334 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:52:27,334 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:52:27,335 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 17:52:27,365 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:52:27,365 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:52:27,366 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:52:27,366 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:52:27,367 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:52:27,367 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:52:27,367 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:52:27,373 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:52:27,373 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:52:27,373 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:52:27,373 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:52:27,373 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:52:27,374 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:52:27,374 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:52:27,374 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 17:52:27,374 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 17:52:27,374 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:52:27,375 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:52:27,375 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:52:27,375 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:52:27,375 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:52:27,377 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:52:27,378 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:52:27,378 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:52:27,378 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:52:27,378 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:52:27,378 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:52:27,379 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 17:52:27,379 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:52:27,379 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 17:52:27,379 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 17:52:27,379 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 -> 6325aa1d97dea13f4033dc32ee324acae8808fcc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 17:52:27,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:52:27,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:52:27,475 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:52:27,476 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:52:27,477 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:52:27,478 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0686a_true-unreach-call.c [2018-09-21 17:52:27,882 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00030fb7f/d77bd5dc743e4e26b7b90e868c029593/FLAG1acce558b [2018-09-21 17:52:28,052 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:52:28,053 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0686a_true-unreach-call.c [2018-09-21 17:52:28,062 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00030fb7f/d77bd5dc743e4e26b7b90e868c029593/FLAG1acce558b [2018-09-21 17:52:28,080 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00030fb7f/d77bd5dc743e4e26b7b90e868c029593 [2018-09-21 17:52:28,084 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:52:28,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:52:28,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:52:28,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:52:28,095 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:52:28,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:52:28" (1/1) ... [2018-09-21 17:52:28,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ac24d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:28, skipping insertion in model container [2018-09-21 17:52:28,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:52:28" (1/1) ... [2018-09-21 17:52:28,112 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:52:28,499 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:52:28,526 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:52:28,597 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:52:28,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:28 WrapperNode [2018-09-21 17:52:28,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:52:28,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:52:28,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:52:28,654 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:52:28,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:28" (1/1) ... [2018-09-21 17:52:28,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:28" (1/1) ... [2018-09-21 17:52:28,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:28" (1/1) ... [2018-09-21 17:52:28,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:28" (1/1) ... [2018-09-21 17:52:28,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:28" (1/1) ... [2018-09-21 17:52:28,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:28" (1/1) ... [2018-09-21 17:52:28,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:28" (1/1) ... [2018-09-21 17:52:28,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:52:28,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:52:28,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:52:28,731 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:52:28,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:28" (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 [2018-09-21 17:52:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:52:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:52:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-21 17:52:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-09-21 17:52:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-09-21 17:52:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:52:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:52:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:52:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-21 17:52:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:52:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 17:52:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 17:52:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:52:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 17:52:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 17:52:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-09-21 17:52:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-09-21 17:52:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:52:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:52:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:52:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 17:52:28,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 17:52:29,325 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:29,346 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:29,367 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:29,407 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:29,436 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:29,461 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:32,250 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:32,289 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:32,307 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:33,075 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:33,092 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:33,143 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:43,858 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:43,869 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:43,985 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:44,010 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:51,972 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:52:51,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:52:51 BoogieIcfgContainer [2018-09-21 17:52:51,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:52:51,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:52:51,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:52:51,978 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:52:51,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:52:28" (1/3) ... [2018-09-21 17:52:51,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52139b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:52:51, skipping insertion in model container [2018-09-21 17:52:51,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:28" (2/3) ... [2018-09-21 17:52:51,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52139b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:52:51, skipping insertion in model container [2018-09-21 17:52:51,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:52:51" (3/3) ... [2018-09-21 17:52:51,983 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686a_true-unreach-call.c [2018-09-21 17:52:51,994 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:52:52,005 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:52:52,050 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:52:52,051 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:52:52,051 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:52:52,051 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:52:52,051 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:52:52,051 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:52:52,051 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:52:52,052 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:52:52,052 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:52:52,075 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2018-09-21 17:52:52,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 17:52:52,087 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:52:52,088 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:52:52,091 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:52:52,097 INFO L82 PathProgramCache]: Analyzing trace with hash -716527358, now seen corresponding path program 1 times [2018-09-21 17:52:52,103 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:52:52,103 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 [2018-09-21 17:52:52,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:52:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:52:52,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:52:52,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:52:52,339 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:52:52,355 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:52:52,355 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:52:52,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:52:52,374 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:52:52,375 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:52:52,378 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 2 states. [2018-09-21 17:52:52,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:52:52,423 INFO L93 Difference]: Finished difference Result 177 states and 216 transitions. [2018-09-21 17:52:52,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:52:52,425 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 17:52:52,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:52:52,451 INFO L225 Difference]: With dead ends: 177 [2018-09-21 17:52:52,451 INFO L226 Difference]: Without dead ends: 173 [2018-09-21 17:52:52,455 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:52:52,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-09-21 17:52:52,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-09-21 17:52:52,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-09-21 17:52:52,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 212 transitions. [2018-09-21 17:52:52,524 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 212 transitions. Word has length 18 [2018-09-21 17:52:52,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:52:52,524 INFO L480 AbstractCegarLoop]: Abstraction has 173 states and 212 transitions. [2018-09-21 17:52:52,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:52:52,525 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 212 transitions. [2018-09-21 17:52:52,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-21 17:52:52,527 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:52:52,527 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] [2018-09-21 17:52:52,527 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:52:52,528 INFO L82 PathProgramCache]: Analyzing trace with hash -880272872, now seen corresponding path program 1 times [2018-09-21 17:52:52,529 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:52:52,529 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 17:52:52,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:52:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:52:52,923 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:52:53,128 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:52:53,130 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:52:53,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-21 17:52:53,180 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:52:53,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-21 17:52:53,213 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:53,295 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:53,396 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. [2018-09-21 17:52:53,397 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:31 [2018-09-21 17:52:53,745 WARN L178 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 17:52:53,948 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-21 17:52:54,194 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-21 17:52:54,243 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 42 treesize of output 33 [2018-09-21 17:52:54,285 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:52:54,362 INFO L303 Elim1Store]: Index analysis took 116 ms [2018-09-21 17:52:54,364 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-09-21 17:52:54,365 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:54,458 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:54,622 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:52:54,623 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:54, output treesize:35 [2018-09-21 17:52:56,758 WARN L178 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 30 [2018-09-21 17:52:56,784 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 26 treesize of output 20 [2018-09-21 17:52:56,808 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:52:56,815 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 11 [2018-09-21 17:52:56,816 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:56,849 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:56,904 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:52:56,904 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:21 [2018-09-21 17:52:57,083 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-21 17:52:57,268 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-21 17:52:57,470 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:52:57,479 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:52:57,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-21 17:52:57,519 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:52:57,569 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-21 17:52:57,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:57,592 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:57,660 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:52:57,660 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:55, output treesize:47 [2018-09-21 17:52:58,231 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:52:58,232 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:52:58,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-21 17:52:58,278 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:52:58,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-21 17:52:58,303 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:58,340 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:58,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-21 17:52:58,438 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:82, output treesize:74 [2018-09-21 17:52:58,632 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 35 treesize of output 27 [2018-09-21 17:52:58,665 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:52:58,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-21 17:52:58,674 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:58,727 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:58,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:52:58,788 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:63, output treesize:37 [2018-09-21 17:52:59,913 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 38 [2018-09-21 17:52:59,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:52:59,981 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:53:00,000 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:53:00,000 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-21 17:53:00,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-21 17:53:00,003 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-21 17:53:00,004 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2018-09-21 17:53:00,004 INFO L87 Difference]: Start difference. First operand 173 states and 212 transitions. Second operand 18 states. [2018-09-21 17:53:01,880 WARN L178 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-21 17:53:02,779 WARN L178 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 17:53:03,297 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-21 17:53:03,961 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-09-21 17:53:04,597 WARN L178 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-21 17:53:05,105 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:53:05,781 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-21 17:53:06,808 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-09-21 17:53:07,597 WARN L178 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-21 17:53:08,255 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-09-21 17:53:08,978 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-09-21 17:53:11,500 WARN L178 SmtUtils]: Spent 2.26 s on a formula simplification that was a NOOP. DAG size: 58 [2018-09-21 17:53:12,629 WARN L178 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-09-21 17:53:13,367 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-09-21 17:53:13,836 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-21 17:53:15,805 WARN L178 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-09-21 17:53:26,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:53:26,230 INFO L93 Difference]: Finished difference Result 175 states and 213 transitions. [2018-09-21 17:53:26,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-21 17:53:26,234 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 44 [2018-09-21 17:53:26,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:53:26,238 INFO L225 Difference]: With dead ends: 175 [2018-09-21 17:53:26,238 INFO L226 Difference]: Without dead ends: 173 [2018-09-21 17:53:26,240 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=219, Invalid=1113, Unknown=0, NotChecked=0, Total=1332 [2018-09-21 17:53:26,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-09-21 17:53:26,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-09-21 17:53:26,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-09-21 17:53:26,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 211 transitions. [2018-09-21 17:53:26,257 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 211 transitions. Word has length 44 [2018-09-21 17:53:26,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:53:26,257 INFO L480 AbstractCegarLoop]: Abstraction has 173 states and 211 transitions. [2018-09-21 17:53:26,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-21 17:53:26,258 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 211 transitions. [2018-09-21 17:53:26,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-21 17:53:26,261 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:53:26,261 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] [2018-09-21 17:53:26,261 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:53:26,261 INFO L82 PathProgramCache]: Analyzing trace with hash 155735109, now seen corresponding path program 1 times [2018-09-21 17:53:26,262 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:53:26,262 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 17:53:26,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 17:53:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:53:26,548 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:53:26,639 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 [2018-09-21 17:53:26,647 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 [2018-09-21 17:53:26,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:26,653 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:26,673 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. [2018-09-21 17:53:26,673 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:53:26,731 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 [2018-09-21 17:53:26,751 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 [2018-09-21 17:53:26,751 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:26,775 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:26,849 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. [2018-09-21 17:53:26,849 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:53:27,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:53:27,256 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:53:27,273 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:53:27,273 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:53:27,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:53:27,274 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:53:27,274 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:53:27,274 INFO L87 Difference]: Start difference. First operand 173 states and 211 transitions. Second operand 9 states. [2018-09-21 17:53:27,981 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 17:53:28,748 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:53:33,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:53:33,695 INFO L93 Difference]: Finished difference Result 175 states and 212 transitions. [2018-09-21 17:53:33,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:53:33,699 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-09-21 17:53:33,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:53:33,706 INFO L225 Difference]: With dead ends: 175 [2018-09-21 17:53:33,706 INFO L226 Difference]: Without dead ends: 171 [2018-09-21 17:53:33,707 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:53:33,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-09-21 17:53:33,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2018-09-21 17:53:33,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-09-21 17:53:33,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 207 transitions. [2018-09-21 17:53:33,729 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 207 transitions. Word has length 49 [2018-09-21 17:53:33,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:53:33,730 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 207 transitions. [2018-09-21 17:53:33,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:53:33,730 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 207 transitions. [2018-09-21 17:53:33,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-21 17:53:33,733 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:53:33,733 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] [2018-09-21 17:53:33,733 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:53:33,734 INFO L82 PathProgramCache]: Analyzing trace with hash -534454715, now seen corresponding path program 1 times [2018-09-21 17:53:33,734 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:53:33,735 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 [2018-09-21 17:53:33,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:53:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:53:33,877 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:53:34,043 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 [2018-09-21 17:53:34,049 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 [2018-09-21 17:53:34,050 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:34,056 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:34,075 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. [2018-09-21 17:53:34,075 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:53:34,151 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 [2018-09-21 17:53:34,165 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 [2018-09-21 17:53:34,166 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:34,169 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:34,184 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. [2018-09-21 17:53:34,185 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:53:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:53:34,532 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:53:34,549 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:53:34,549 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:53:34,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:53:34,550 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:53:34,550 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:53:34,550 INFO L87 Difference]: Start difference. First operand 171 states and 207 transitions. Second operand 9 states. [2018-09-21 17:53:35,177 WARN L178 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:53:35,818 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 17:53:36,487 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:53:46,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:53:46,167 INFO L93 Difference]: Finished difference Result 216 states and 264 transitions. [2018-09-21 17:53:46,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:53:46,170 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-09-21 17:53:46,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:53:46,171 INFO L225 Difference]: With dead ends: 216 [2018-09-21 17:53:46,171 INFO L226 Difference]: Without dead ends: 165 [2018-09-21 17:53:46,172 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:53:46,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-09-21 17:53:46,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2018-09-21 17:53:46,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-09-21 17:53:46,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 196 transitions. [2018-09-21 17:53:46,183 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 196 transitions. Word has length 49 [2018-09-21 17:53:46,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:53:46,184 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 196 transitions. [2018-09-21 17:53:46,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:53:46,184 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 196 transitions. [2018-09-21 17:53:46,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 17:53:46,187 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:53:46,187 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] [2018-09-21 17:53:46,187 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:53:46,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1864324521, now seen corresponding path program 1 times [2018-09-21 17:53:46,188 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:53:46,188 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 [2018-09-21 17:53:46,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:53:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:53:46,403 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:53:47,346 WARN L178 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-21 17:53:47,515 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 17:53:48,123 WARN L178 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 17:53:48,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:53:48,132 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:53:48,144 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:53:48,144 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 17:53:48,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 17:53:48,145 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 17:53:48,145 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-21 17:53:48,145 INFO L87 Difference]: Start difference. First operand 165 states and 196 transitions. Second operand 6 states. [2018-09-21 17:53:55,616 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-21 17:53:58,998 WARN L178 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-21 17:54:05,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:05,276 INFO L93 Difference]: Finished difference Result 169 states and 199 transitions. [2018-09-21 17:54:05,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-21 17:54:05,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2018-09-21 17:54:05,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:05,282 INFO L225 Difference]: With dead ends: 169 [2018-09-21 17:54:05,282 INFO L226 Difference]: Without dead ends: 165 [2018-09-21 17:54:05,282 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-21 17:54:05,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-09-21 17:54:05,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2018-09-21 17:54:05,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-09-21 17:54:05,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 195 transitions. [2018-09-21 17:54:05,291 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 195 transitions. Word has length 50 [2018-09-21 17:54:05,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:05,291 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 195 transitions. [2018-09-21 17:54:05,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 17:54:05,291 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 195 transitions. [2018-09-21 17:54:05,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 17:54:05,295 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:05,295 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] [2018-09-21 17:54:05,295 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:05,295 INFO L82 PathProgramCache]: Analyzing trace with hash -721537065, now seen corresponding path program 1 times [2018-09-21 17:54:05,296 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:54:05,296 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 17:54:05,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:05,489 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:54:05,571 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 [2018-09-21 17:54:05,577 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 [2018-09-21 17:54:05,577 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:05,587 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:05,604 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. [2018-09-21 17:54:05,605 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:54:05,646 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 [2018-09-21 17:54:05,651 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 [2018-09-21 17:54:05,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:05,656 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:05,667 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. [2018-09-21 17:54:05,667 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:54:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:54:05,936 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:54:05,947 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:05,948 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:54:05,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:54:05,948 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:54:05,949 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:54:05,949 INFO L87 Difference]: Start difference. First operand 165 states and 195 transitions. Second operand 9 states. [2018-09-21 17:54:06,578 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:54:07,750 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:54:14,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:14,176 INFO L93 Difference]: Finished difference Result 170 states and 201 transitions. [2018-09-21 17:54:14,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:54:14,180 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-21 17:54:14,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:14,181 INFO L225 Difference]: With dead ends: 170 [2018-09-21 17:54:14,182 INFO L226 Difference]: Without dead ends: 126 [2018-09-21 17:54:14,182 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:54:14,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-09-21 17:54:14,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-09-21 17:54:14,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-09-21 17:54:14,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 142 transitions. [2018-09-21 17:54:14,191 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 142 transitions. Word has length 50 [2018-09-21 17:54:14,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:14,191 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 142 transitions. [2018-09-21 17:54:14,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:54:14,191 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 142 transitions. [2018-09-21 17:54:14,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-21 17:54:14,195 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:14,195 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, 1] [2018-09-21 17:54:14,195 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:14,196 INFO L82 PathProgramCache]: Analyzing trace with hash -460048773, now seen corresponding path program 1 times [2018-09-21 17:54:14,196 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:54:14,196 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-21 17:54:14,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:14,456 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:54:14,673 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 [2018-09-21 17:54:14,710 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 [2018-09-21 17:54:14,710 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:14,893 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:15,008 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. [2018-09-21 17:54:15,008 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-21 17:54:15,161 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-21 17:54:15,254 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 [2018-09-21 17:54:15,358 INFO L303 Elim1Store]: Index analysis took 102 ms [2018-09-21 17:54:15,359 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 [2018-09-21 17:54:15,359 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:15,609 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:15,719 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. [2018-09-21 17:54:15,719 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-21 17:54:16,030 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 [2018-09-21 17:54:16,048 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 [2018-09-21 17:54:16,049 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:16,075 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:16,121 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:54:16,122 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:33 [2018-09-21 17:54:16,241 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 [2018-09-21 17:54:16,248 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 [2018-09-21 17:54:16,249 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:16,255 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:16,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:54:16,286 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:27 [2018-09-21 17:54:17,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:54:17,250 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:54:17,262 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:17,263 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 17:54:17,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 17:54:17,264 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 17:54:17,264 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-21 17:54:17,264 INFO L87 Difference]: Start difference. First operand 126 states and 142 transitions. Second operand 13 states. [2018-09-21 17:54:17,617 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-09-21 17:54:17,968 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-21 17:54:18,625 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-21 17:54:20,475 WARN L178 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-21 17:54:21,268 WARN L178 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-21 17:54:21,783 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-21 17:54:23,131 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-09-21 17:54:24,165 WARN L178 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-09-21 17:54:24,640 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2018-09-21 17:54:31,841 WARN L178 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2018-09-21 17:54:33,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:33,854 INFO L93 Difference]: Finished difference Result 133 states and 149 transitions. [2018-09-21 17:54:33,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-21 17:54:33,865 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2018-09-21 17:54:33,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:33,868 INFO L225 Difference]: With dead ends: 133 [2018-09-21 17:54:33,868 INFO L226 Difference]: Without dead ends: 122 [2018-09-21 17:54:33,869 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2018-09-21 17:54:33,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-09-21 17:54:33,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2018-09-21 17:54:33,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-09-21 17:54:33,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 131 transitions. [2018-09-21 17:54:33,876 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 131 transitions. Word has length 51 [2018-09-21 17:54:33,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:33,876 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 131 transitions. [2018-09-21 17:54:33,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 17:54:33,876 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 131 transitions. [2018-09-21 17:54:33,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-21 17:54:33,879 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:33,879 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, 1] [2018-09-21 17:54:33,879 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:33,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1897195387, now seen corresponding path program 1 times [2018-09-21 17:54:33,881 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:54:33,881 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-21 17:54:33,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:34,102 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:54:34,140 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 [2018-09-21 17:54:34,147 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 [2018-09-21 17:54:34,148 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:34,155 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:34,173 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. [2018-09-21 17:54:34,174 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:54:34,245 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 [2018-09-21 17:54:34,260 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 [2018-09-21 17:54:34,260 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:34,288 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:34,340 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. [2018-09-21 17:54:34,340 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:54:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:54:34,595 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:54:34,608 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:34,609 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:54:34,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:54:34,609 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:54:34,609 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:54:34,609 INFO L87 Difference]: Start difference. First operand 120 states and 131 transitions. Second operand 9 states. [2018-09-21 17:54:36,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:36,317 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2018-09-21 17:54:36,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:54:36,320 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2018-09-21 17:54:36,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:36,321 INFO L225 Difference]: With dead ends: 116 [2018-09-21 17:54:36,321 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 17:54:36,322 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:54:36,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 17:54:36,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 17:54:36,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 17:54:36,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 17:54:36,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2018-09-21 17:54:36,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:36,325 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 17:54:36,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:54:36,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 17:54:36,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 17:54:36,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:54:36 BoogieIcfgContainer [2018-09-21 17:54:36,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:54:36,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:54:36,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:54:36,331 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:54:36,333 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:52:51" (3/4) ... [2018-09-21 17:54:36,337 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 17:54:36,344 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-09-21 17:54:36,344 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 17:54:36,344 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_double [2018-09-21 17:54:36,345 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 17:54:36,345 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_atan2 [2018-09-21 17:54:36,355 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-09-21 17:54:36,356 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-09-21 17:54:36,357 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 17:54:36,482 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 17:54:36,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:54:36,487 INFO L168 Benchmark]: Toolchain (without parser) took 128402.64 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 307.2 MB). Free memory was 949.2 MB in the beginning and 1.0 GB in the end (delta: -77.5 MB). Peak memory consumption was 229.8 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:36,491 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. [2018-09-21 17:54:36,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.46 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 927.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:36,492 INFO L168 Benchmark]: Boogie Preprocessor took 77.03 ms. Allocated memory is still 1.0 GB. Free memory is still 927.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:54:36,492 INFO L168 Benchmark]: RCFGBuilder took 23242.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -143.4 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:36,493 INFO L168 Benchmark]: TraceAbstraction took 104356.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 166.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 35.5 MB). Peak memory consumption was 202.2 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:36,493 INFO L168 Benchmark]: Witness Printer took 155.10 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:36,498 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 564.46 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 927.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.03 ms. Allocated memory is still 1.0 GB. Free memory is still 927.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 23242.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -143.4 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 104356.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 166.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 35.5 MB). Peak memory consumption was 202.2 MB. Max. memory is 11.5 GB. * Witness Printer took 155.10 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 256]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 177 locations, 1 error locations. SAFE Result, 104.2s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 88.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1417 SDtfs, 1839 SDslu, 6921 SDs, 0 SdLazy, 1399 SolverSat, 122 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 63.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 417 GetRequests, 293 SyntacticMatches, 2 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 29.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=177occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 362 NumberOfCodeBlocks, 362 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 354 ConstructedInterpolants, 180 QuantifiedInterpolants, 235284 SizeOfPredicates, 72 NumberOfNonLiveVariables, 991 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...