/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0685b_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_0685b_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 201a5d6458c151e9fb4933ccfe2d7ea552ed2537 --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_0685b_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 201a5d6458c151e9fb4933ccfe2d7ea552ed2537 --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 17:52:14,403 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:52:14,405 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:52:14,418 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:52:14,418 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:52:14,419 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:52:14,421 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:52:14,431 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:52:14,433 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:52:14,434 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:52:14,435 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:52:14,435 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:52:14,436 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:52:14,437 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:52:14,439 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:52:14,440 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:52:14,441 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:52:14,443 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:52:14,445 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:52:14,446 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:52:14,447 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:52:14,449 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:52:14,451 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:52:14,452 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:52:14,452 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:52:14,453 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:52:14,454 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:52:14,455 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:52:14,456 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:52:14,457 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:52:14,458 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:52:14,458 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:52:14,459 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:52:14,459 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:52:14,460 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:52:14,461 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:52:14,461 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 17:52:14,477 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:52:14,477 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:52:14,478 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:52:14,478 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:52:14,479 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:52:14,479 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:52:14,480 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:52:14,480 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:52:14,480 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:52:14,480 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 17:52:14,480 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:52:14,481 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:52:14,481 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:52:14,481 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:52:14,482 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:52:14,482 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:52:14,482 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:52:14,483 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:52:14,483 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:52:14,483 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:52:14,483 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:52:14,484 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:52:14,484 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:52:14,485 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:52:14,485 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:52:14,485 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:52:14,485 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 17:52:14,485 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:52:14,485 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 17:52:14,486 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 -> 201a5d6458c151e9fb4933ccfe2d7ea552ed2537 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 17:52:14,536 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:52:14,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:52:14,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:52:14,555 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:52:14,555 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:52:14,556 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0685b_true-unreach-call.c [2018-09-21 17:52:14,914 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c454c1d4b/4c4ba32b7db842e381c09ad2745f6de8/FLAG02e337e16 [2018-09-21 17:52:15,124 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:52:15,126 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0685b_true-unreach-call.c [2018-09-21 17:52:15,141 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c454c1d4b/4c4ba32b7db842e381c09ad2745f6de8/FLAG02e337e16 [2018-09-21 17:52:15,159 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c454c1d4b/4c4ba32b7db842e381c09ad2745f6de8 [2018-09-21 17:52:15,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:52:15,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:52:15,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:52:15,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:52:15,176 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:52:15,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:52:15" (1/1) ... [2018-09-21 17:52:15,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294241e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:15, skipping insertion in model container [2018-09-21 17:52:15,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:52:15" (1/1) ... [2018-09-21 17:52:15,194 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:52:15,496 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:52:15,523 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:52:15,568 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:52:15,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:15 WrapperNode [2018-09-21 17:52:15,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:52:15,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:52:15,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:52:15,625 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:52:15,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:15" (1/1) ... [2018-09-21 17:52:15,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:15" (1/1) ... [2018-09-21 17:52:15,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:15" (1/1) ... [2018-09-21 17:52:15,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:15" (1/1) ... [2018-09-21 17:52:15,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:15" (1/1) ... [2018-09-21 17:52:15,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:15" (1/1) ... [2018-09-21 17:52:15,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:15" (1/1) ... [2018-09-21 17:52:15,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:52:15,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:52:15,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:52:15,719 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:52:15,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:15" (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 17:52:15,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:52:15,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:52:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-21 17:52:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-09-21 17:52:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-09-21 17:52:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:52:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:52:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:52:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-21 17:52:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:52:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 17:52:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 17:52:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:52:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 17:52:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 17:52:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-09-21 17:52:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-09-21 17:52:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:52:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:52:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:52:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 17:52:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 17:52:17,089 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:52:17,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:52:17 BoogieIcfgContainer [2018-09-21 17:52:17,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:52:17,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:52:17,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:52:17,094 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:52:17,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:52:15" (1/3) ... [2018-09-21 17:52:17,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af1e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:52:17, skipping insertion in model container [2018-09-21 17:52:17,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:15" (2/3) ... [2018-09-21 17:52:17,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af1e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:52:17, skipping insertion in model container [2018-09-21 17:52:17,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:52:17" (3/3) ... [2018-09-21 17:52:17,098 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685b_true-unreach-call.c [2018-09-21 17:52:17,110 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:52:17,124 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:52:17,181 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:52:17,182 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:52:17,183 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:52:17,183 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:52:17,183 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:52:17,183 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:52:17,185 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:52:17,185 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:52:17,185 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:52:17,213 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2018-09-21 17:52:17,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 17:52:17,226 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:52:17,227 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 17:52:17,230 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:52:17,236 INFO L82 PathProgramCache]: Analyzing trace with hash -716527358, now seen corresponding path program 1 times [2018-09-21 17:52:17,238 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:52:17,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:52:17,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:52:17,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:52:17,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:52:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:52:17,425 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 17:52:17,427 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:52:17,428 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:52:17,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:52:17,449 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:52:17,451 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:52:17,453 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 2 states. [2018-09-21 17:52:17,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:52:17,494 INFO L93 Difference]: Finished difference Result 177 states and 216 transitions. [2018-09-21 17:52:17,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:52:17,498 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 17:52:17,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:52:17,518 INFO L225 Difference]: With dead ends: 177 [2018-09-21 17:52:17,519 INFO L226 Difference]: Without dead ends: 173 [2018-09-21 17:52:17,521 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 17:52:17,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-09-21 17:52:17,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-09-21 17:52:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-09-21 17:52:17,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 212 transitions. [2018-09-21 17:52:17,589 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 212 transitions. Word has length 18 [2018-09-21 17:52:17,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:52:17,590 INFO L480 AbstractCegarLoop]: Abstraction has 173 states and 212 transitions. [2018-09-21 17:52:17,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:52:17,590 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 212 transitions. [2018-09-21 17:52:17,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-21 17:52:17,593 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:52:17,594 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 17:52:17,594 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:52:17,594 INFO L82 PathProgramCache]: Analyzing trace with hash -880272872, now seen corresponding path program 1 times [2018-09-21 17:52:17,594 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:52:17,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:52:17,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:52:17,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:52:17,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:52:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:52:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:52:17,823 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 17:52:17,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:52:17 BoogieIcfgContainer [2018-09-21 17:52:17,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:52:17,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:52:17,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:52:17,901 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:52:17,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:52:17" (3/4) ... [2018-09-21 17:52:17,906 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 17:52:17,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:52:17,908 INFO L168 Benchmark]: Toolchain (without parser) took 2743.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 949.2 MB in the beginning and 1.0 GB in the end (delta: -84.8 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:17,911 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:52:17,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.11 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:17,915 INFO L168 Benchmark]: Boogie Preprocessor took 93.24 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:17,916 INFO L168 Benchmark]: RCFGBuilder took 1371.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -141.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:17,917 INFO L168 Benchmark]: TraceAbstraction took 808.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-09-21 17:52:17,923 INFO L168 Benchmark]: Witness Printer took 6.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:52:17,931 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 456.11 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 93.24 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1371.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -141.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 808.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 6.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 258]: 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 257. 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] [L251] double x = -1.0 / 0.0; [L252] 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] [L254] 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] [L254] 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] [L254] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != -3 * 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] [L258] __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 17:52:20,378 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:52:20,383 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:52:20,401 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:52:20,403 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:52:20,404 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:52:20,406 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:52:20,409 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:52:20,421 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:52:20,422 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:52:20,423 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:52:20,424 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:52:20,425 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:52:20,426 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:52:20,427 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:52:20,428 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:52:20,429 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:52:20,431 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:52:20,433 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:52:20,435 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:52:20,436 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:52:20,437 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:52:20,440 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:52:20,440 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:52:20,440 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:52:20,441 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:52:20,445 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:52:20,446 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:52:20,447 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:52:20,448 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:52:20,449 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:52:20,449 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:52:20,449 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:52:20,450 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:52:20,451 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:52:20,452 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:52:20,453 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 17:52:20,470 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:52:20,471 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:52:20,472 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:52:20,472 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:52:20,474 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:52:20,475 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:52:20,475 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:52:20,476 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:52:20,476 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:52:20,476 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:52:20,476 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:52:20,476 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:52:20,477 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:52:20,477 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:52:20,477 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 17:52:20,477 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 17:52:20,477 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:52:20,480 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:52:20,480 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:52:20,481 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:52:20,481 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:52:20,481 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:52:20,481 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:52:20,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:52:20,482 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:52:20,482 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:52:20,482 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:52:20,482 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 17:52:20,482 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:52:20,484 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 17:52:20,484 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 17:52:20,485 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 -> 201a5d6458c151e9fb4933ccfe2d7ea552ed2537 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 17:52:20,568 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:52:20,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:52:20,585 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:52:20,587 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:52:20,587 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:52:20,588 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0685b_true-unreach-call.c [2018-09-21 17:52:20,962 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f64c61df/361c565c8c924c1880101ce895e0bf7d/FLAGe13439423 [2018-09-21 17:52:21,149 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:52:21,150 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0685b_true-unreach-call.c [2018-09-21 17:52:21,160 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f64c61df/361c565c8c924c1880101ce895e0bf7d/FLAGe13439423 [2018-09-21 17:52:21,181 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f64c61df/361c565c8c924c1880101ce895e0bf7d [2018-09-21 17:52:21,188 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:52:21,191 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:52:21,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:52:21,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:52:21,200 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:52:21,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:52:21" (1/1) ... [2018-09-21 17:52:21,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fbaf814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:21, skipping insertion in model container [2018-09-21 17:52:21,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:52:21" (1/1) ... [2018-09-21 17:52:21,223 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:52:21,531 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:52:21,565 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:52:21,625 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:52:21,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:21 WrapperNode [2018-09-21 17:52:21,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:52:21,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:52:21,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:52:21,685 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:52:21,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:21" (1/1) ... [2018-09-21 17:52:21,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:21" (1/1) ... [2018-09-21 17:52:21,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:21" (1/1) ... [2018-09-21 17:52:21,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:21" (1/1) ... [2018-09-21 17:52:21,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:21" (1/1) ... [2018-09-21 17:52:21,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:21" (1/1) ... [2018-09-21 17:52:21,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:21" (1/1) ... [2018-09-21 17:52:21,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:52:21,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:52:21,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:52:21,763 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:52:21,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:21" (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 17:52:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:52:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:52:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-21 17:52:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-09-21 17:52:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-09-21 17:52:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:52:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:52:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:52:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-21 17:52:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:52:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 17:52:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 17:52:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:52:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 17:52:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 17:52:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-09-21 17:52:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-09-21 17:52:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:52:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:52:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:52:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 17:52:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 17:52:22,925 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:22,952 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:22,974 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:23,031 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:23,048 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:23,064 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:26,355 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:26,400 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:26,426 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:27,428 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:27,442 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:27,505 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:37,845 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:37,855 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:37,879 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:37,889 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:52:45,886 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:52:45,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:52:45 BoogieIcfgContainer [2018-09-21 17:52:45,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:52:45,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:52:45,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:52:45,890 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:52:45,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:52:21" (1/3) ... [2018-09-21 17:52:45,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbdf2b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:52:45, skipping insertion in model container [2018-09-21 17:52:45,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:52:21" (2/3) ... [2018-09-21 17:52:45,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbdf2b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:52:45, skipping insertion in model container [2018-09-21 17:52:45,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:52:45" (3/3) ... [2018-09-21 17:52:45,897 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685b_true-unreach-call.c [2018-09-21 17:52:45,907 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:52:45,920 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:52:45,963 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:52:45,964 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:52:45,964 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:52:45,964 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:52:45,964 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:52:45,964 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:52:45,964 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:52:45,965 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:52:45,965 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:52:45,986 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2018-09-21 17:52:45,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 17:52:45,998 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:52:46,000 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 17:52:46,004 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:52:46,010 INFO L82 PathProgramCache]: Analyzing trace with hash -716527358, now seen corresponding path program 1 times [2018-09-21 17:52:46,018 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:52:46,019 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 17:52:46,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:52:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:52:46,295 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:52:46,314 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 17:52:46,314 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:52:46,336 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:52:46,337 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:52:46,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:52:46,353 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:52:46,354 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:52:46,356 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 2 states. [2018-09-21 17:52:46,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:52:46,393 INFO L93 Difference]: Finished difference Result 177 states and 216 transitions. [2018-09-21 17:52:46,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:52:46,395 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 17:52:46,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:52:46,410 INFO L225 Difference]: With dead ends: 177 [2018-09-21 17:52:46,410 INFO L226 Difference]: Without dead ends: 173 [2018-09-21 17:52:46,413 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 17:52:46,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-09-21 17:52:46,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-09-21 17:52:46,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-09-21 17:52:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 212 transitions. [2018-09-21 17:52:46,474 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 212 transitions. Word has length 18 [2018-09-21 17:52:46,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:52:46,474 INFO L480 AbstractCegarLoop]: Abstraction has 173 states and 212 transitions. [2018-09-21 17:52:46,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:52:46,475 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 212 transitions. [2018-09-21 17:52:46,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-21 17:52:46,477 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:52:46,477 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 17:52:46,477 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:52:46,477 INFO L82 PathProgramCache]: Analyzing trace with hash -880272872, now seen corresponding path program 1 times [2018-09-21 17:52:46,479 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:52:46,479 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 17:52:46,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:52:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:52:46,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:52:47,112 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:52:47,115 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:52:47,121 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 17:52:47,156 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:52:47,178 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 17:52:47,179 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:47,296 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:47,424 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 17:52:47,424 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:31 [2018-09-21 17:52:47,748 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-21 17:52:48,021 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 17:52:48,035 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:52:48,071 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 17:52:48,072 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:48,146 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:48,332 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 17:52:48,333 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:54, output treesize:35 [2018-09-21 17:52:50,440 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 30 [2018-09-21 17:52:50,458 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 17:52:50,469 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:52:50,477 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 17:52:50,478 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:50,506 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:50,559 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 17:52:50,559 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:21 [2018-09-21 17:52:50,955 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:52:50,956 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:52:50,957 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 17:52:50,970 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:52:50,993 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 17:52:50,994 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:51,016 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:51,081 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 17:52:51,081 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:55, output treesize:47 [2018-09-21 17:52:51,672 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:52:51,673 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:52:51,675 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 17:52:51,702 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:52:51,727 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 17:52:51,728 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:51,772 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:51,870 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 17:52:51,871 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:82, output treesize:74 [2018-09-21 17:52:52,048 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 17:52:52,081 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:52:52,086 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 17:52:52,087 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:52:52,123 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:52:52,181 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 17:52:52,181 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:63, output treesize:37 [2018-09-21 17:52:53,291 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 17:52:53,291 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:52:53,311 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:52:53,311 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-21 17:52:53,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-21 17:52:53,316 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-21 17:52:53,317 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2018-09-21 17:52:53,317 INFO L87 Difference]: Start difference. First operand 173 states and 212 transitions. Second operand 18 states. [2018-09-21 17:52:55,231 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-21 17:52:55,593 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-09-21 17:52:56,278 WARN L178 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-21 17:52:57,274 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2018-09-21 17:52:57,611 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-09-21 17:52:58,009 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-21 17:52:58,487 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-09-21 17:52:59,024 WARN L178 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-09-21 17:53:01,466 WARN L178 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 58 [2018-09-21 17:53:02,139 WARN L178 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-09-21 17:53:02,832 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-21 17:53:05,426 WARN L178 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-09-21 17:53:20,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:53:20,823 INFO L93 Difference]: Finished difference Result 175 states and 213 transitions. [2018-09-21 17:53:20,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-21 17:53:20,827 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 44 [2018-09-21 17:53:20,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:53:20,831 INFO L225 Difference]: With dead ends: 175 [2018-09-21 17:53:20,831 INFO L226 Difference]: Without dead ends: 173 [2018-09-21 17:53:20,833 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=219, Invalid=1113, Unknown=0, NotChecked=0, Total=1332 [2018-09-21 17:53:20,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-09-21 17:53:20,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-09-21 17:53:20,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-09-21 17:53:20,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 211 transitions. [2018-09-21 17:53:20,849 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 211 transitions. Word has length 44 [2018-09-21 17:53:20,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:53:20,850 INFO L480 AbstractCegarLoop]: Abstraction has 173 states and 211 transitions. [2018-09-21 17:53:20,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-21 17:53:20,850 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 211 transitions. [2018-09-21 17:53:20,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-21 17:53:20,852 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:53:20,852 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 17:53:20,854 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:53:20,854 INFO L82 PathProgramCache]: Analyzing trace with hash 155735109, now seen corresponding path program 1 times [2018-09-21 17:53:20,855 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:53:20,855 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 17:53:20,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:53:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:53:21,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:53:21,321 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 17:53:21,328 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 17:53:21,329 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:21,334 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:21,354 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 17:53:21,355 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:53:21,423 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 17:53:21,441 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 17:53:21,441 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:21,468 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:21,539 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 17:53:21,540 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:53:22,013 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 17:53:22,013 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:53:22,032 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:53:22,032 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:53:22,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:53:22,033 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:53:22,033 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:53:22,034 INFO L87 Difference]: Start difference. First operand 173 states and 211 transitions. Second operand 9 states. [2018-09-21 17:53:22,450 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:53:22,772 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 17:53:23,423 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:53:23,845 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-21 17:53:31,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:53:31,641 INFO L93 Difference]: Finished difference Result 175 states and 212 transitions. [2018-09-21 17:53:31,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:53:31,654 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-09-21 17:53:31,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:53:31,656 INFO L225 Difference]: With dead ends: 175 [2018-09-21 17:53:31,656 INFO L226 Difference]: Without dead ends: 171 [2018-09-21 17:53:31,660 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 17:53:31,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-09-21 17:53:31,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2018-09-21 17:53:31,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-09-21 17:53:31,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 207 transitions. [2018-09-21 17:53:31,679 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 207 transitions. Word has length 49 [2018-09-21 17:53:31,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:53:31,681 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 207 transitions. [2018-09-21 17:53:31,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:53:31,681 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 207 transitions. [2018-09-21 17:53:31,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-21 17:53:31,683 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:53:31,683 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 17:53:31,683 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:53:31,685 INFO L82 PathProgramCache]: Analyzing trace with hash -534454715, now seen corresponding path program 1 times [2018-09-21 17:53:31,685 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:53:31,685 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 17:53:31,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:53:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:53:31,899 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:53:31,997 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 17:53:32,017 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 17:53:32,018 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:32,044 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:32,091 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 17:53:32,091 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:53:32,135 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 17:53:32,148 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 17:53:32,148 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:32,151 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:32,165 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 17:53:32,165 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:53:32,514 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 17:53:32,515 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:53:32,531 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:53:32,532 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:53:32,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:53:32,532 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:53:32,533 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:53:32,533 INFO L87 Difference]: Start difference. First operand 171 states and 207 transitions. Second operand 9 states. [2018-09-21 17:53:44,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:53:44,185 INFO L93 Difference]: Finished difference Result 216 states and 264 transitions. [2018-09-21 17:53:44,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:53:44,189 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-09-21 17:53:44,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:53:44,190 INFO L225 Difference]: With dead ends: 216 [2018-09-21 17:53:44,191 INFO L226 Difference]: Without dead ends: 165 [2018-09-21 17:53:44,191 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:53:44,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-09-21 17:53:44,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2018-09-21 17:53:44,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-09-21 17:53:44,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 196 transitions. [2018-09-21 17:53:44,214 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 196 transitions. Word has length 49 [2018-09-21 17:53:44,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:53:44,214 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 196 transitions. [2018-09-21 17:53:44,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:53:44,214 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 196 transitions. [2018-09-21 17:53:44,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 17:53:44,217 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:53:44,217 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 17:53:44,217 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:53:44,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1864324521, now seen corresponding path program 1 times [2018-09-21 17:53:44,218 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:53:44,218 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 17:53:44,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:53:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:53:44,505 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:53:44,550 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 17:53:44,555 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 17:53:44,556 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:44,561 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:44,578 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 17:53:44,578 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:53:44,632 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 20 treesize of output 16 [2018-09-21 17:53:44,638 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 17:53:44,638 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:44,664 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:44,674 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 17:53:44,675 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:53:45,118 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 25 [2018-09-21 17:53:45,255 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 17:53:45,256 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:53:45,268 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:53:45,268 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 17:53:45,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 17:53:45,269 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 17:53:45,269 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 17:53:45,269 INFO L87 Difference]: Start difference. First operand 165 states and 196 transitions. Second operand 10 states. [2018-09-21 17:53:45,907 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 17:53:47,398 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-09-21 17:53:48,103 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-21 17:53:56,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:53:56,129 INFO L93 Difference]: Finished difference Result 169 states and 198 transitions. [2018-09-21 17:53:56,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 17:53:56,132 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2018-09-21 17:53:56,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:53:56,134 INFO L225 Difference]: With dead ends: 169 [2018-09-21 17:53:56,134 INFO L226 Difference]: Without dead ends: 163 [2018-09-21 17:53:56,135 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-21 17:53:56,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-09-21 17:53:56,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2018-09-21 17:53:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-09-21 17:53:56,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 190 transitions. [2018-09-21 17:53:56,146 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 190 transitions. Word has length 50 [2018-09-21 17:53:56,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:53:56,147 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 190 transitions. [2018-09-21 17:53:56,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 17:53:56,147 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 190 transitions. [2018-09-21 17:53:56,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 17:53:56,148 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:53:56,150 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 17:53:56,151 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:53:56,151 INFO L82 PathProgramCache]: Analyzing trace with hash -721537065, now seen corresponding path program 1 times [2018-09-21 17:53:56,151 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:53:56,152 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 17:53:56,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:53:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:53:56,406 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:53:56,451 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 17:53:56,457 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 17:53:56,458 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:56,463 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:56,478 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 17:53:56,479 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:53:56,536 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 17:53:56,555 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 17:53:56,555 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:56,563 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:56,573 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 17:53:56,574 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:53:56,821 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 17:53:56,822 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:53:56,834 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:53:56,834 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:53:56,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:53:56,835 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:53:56,835 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:53:56,835 INFO L87 Difference]: Start difference. First operand 163 states and 190 transitions. Second operand 9 states. [2018-09-21 17:54:02,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:02,846 INFO L93 Difference]: Finished difference Result 168 states and 196 transitions. [2018-09-21 17:54:02,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:54:02,848 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-21 17:54:02,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:02,849 INFO L225 Difference]: With dead ends: 168 [2018-09-21 17:54:02,849 INFO L226 Difference]: Without dead ends: 58 [2018-09-21 17:54:02,849 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:54:02,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-21 17:54:02,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-09-21 17:54:02,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-09-21 17:54:02,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2018-09-21 17:54:02,853 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 50 [2018-09-21 17:54:02,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:02,853 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2018-09-21 17:54:02,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:54:02,853 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2018-09-21 17:54:02,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-21 17:54:02,856 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:02,856 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 17:54:02,856 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:02,857 INFO L82 PathProgramCache]: Analyzing trace with hash 122188025, now seen corresponding path program 1 times [2018-09-21 17:54:02,857 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:54:02,857 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 17:54:02,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:03,186 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:54:03,225 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 17:54:03,231 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 17:54:03,231 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:03,237 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:03,256 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 17:54:03,257 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:54:03,308 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 17:54:03,323 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 17:54:03,323 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:03,330 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:03,340 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 17:54:03,341 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:54:03,748 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 17:54:03,748 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:54:03,768 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:03,769 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:54:03,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:54:03,769 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:54:03,770 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:54:03,770 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 9 states. [2018-09-21 17:54:04,237 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:54:05,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:05,380 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2018-09-21 17:54:05,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:54:05,383 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2018-09-21 17:54:05,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:05,384 INFO L225 Difference]: With dead ends: 63 [2018-09-21 17:54:05,384 INFO L226 Difference]: Without dead ends: 58 [2018-09-21 17:54:05,385 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:54:05,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-21 17:54:05,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-09-21 17:54:05,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-09-21 17:54:05,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2018-09-21 17:54:05,389 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 51 [2018-09-21 17:54:05,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:05,390 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2018-09-21 17:54:05,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:54:05,390 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2018-09-21 17:54:05,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-21 17:54:05,397 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:05,397 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, 1] [2018-09-21 17:54:05,397 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:05,397 INFO L82 PathProgramCache]: Analyzing trace with hash 237343059, now seen corresponding path program 1 times [2018-09-21 17:54:05,398 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:54:05,398 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 17:54:05,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:05,757 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:54:05,894 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 17:54:05,903 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 17:54:05,904 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:05,930 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:05,985 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 17:54:05,986 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-21 17:54:06,068 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 17:54:06,081 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 17:54:06,082 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:06,105 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:06,142 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 17:54:06,142 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-21 17:54:06,296 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 17:54:06,306 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 17:54:06,306 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:06,317 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:06,351 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 17:54:06,352 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:33 [2018-09-21 17:54:06,480 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 17:54:06,498 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 17:54:06,498 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:06,534 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:06,621 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 17:54:06,621 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:27 [2018-09-21 17:54:07,353 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-09-21 17:54:07,845 WARN L178 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2018-09-21 17:54:08,268 WARN L178 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2018-09-21 17:54:08,639 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-09-21 17:54:08,727 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 17:54:08,727 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:54:08,751 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:08,751 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-21 17:54:08,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-21 17:54:08,752 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-21 17:54:08,752 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2018-09-21 17:54:08,752 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 15 states. [2018-09-21 17:54:09,973 WARN L178 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-21 17:54:11,449 WARN L178 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-21 17:54:11,746 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-21 17:54:12,055 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-21 17:54:12,430 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-21 17:54:13,400 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-09-21 17:54:13,851 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-09-21 17:54:14,658 WARN L178 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2018-09-21 17:54:15,547 WARN L178 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2018-09-21 17:54:19,759 WARN L178 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2018-09-21 17:54:23,588 WARN L178 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-09-21 17:54:23,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:23,591 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-09-21 17:54:23,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-21 17:54:23,591 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 52 [2018-09-21 17:54:23,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:23,594 INFO L225 Difference]: With dead ends: 63 [2018-09-21 17:54:23,594 INFO L226 Difference]: Without dead ends: 58 [2018-09-21 17:54:23,595 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2018-09-21 17:54:23,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-21 17:54:23,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-09-21 17:54:23,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-09-21 17:54:23,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-09-21 17:54:23,599 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 52 [2018-09-21 17:54:23,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:23,601 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-09-21 17:54:23,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-21 17:54:23,601 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-09-21 17:54:23,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-21 17:54:23,603 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:23,603 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, 1, 1] [2018-09-21 17:54:23,604 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:23,604 INFO L82 PathProgramCache]: Analyzing trace with hash 496169975, now seen corresponding path program 1 times [2018-09-21 17:54:23,606 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:54:23,606 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 17:54:23,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-21 17:54:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:23,932 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:54:25,157 WARN L178 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 17 [2018-09-21 17:54:25,859 WARN L178 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 17:54:28,902 WARN L178 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 17:54:28,915 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 17:54:28,916 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:54:28,928 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:28,929 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 17:54:28,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 17:54:28,929 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 17:54:28,930 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-21 17:54:28,930 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 6 states. [2018-09-21 17:54:38,386 WARN L178 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 17 [2018-09-21 17:54:40,770 WARN L178 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 17 [2018-09-21 17:54:41,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:41,200 INFO L93 Difference]: Finished difference Result 62 states and 61 transitions. [2018-09-21 17:54:41,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-21 17:54:41,212 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2018-09-21 17:54:41,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:41,213 INFO L225 Difference]: With dead ends: 62 [2018-09-21 17:54:41,214 INFO L226 Difference]: Without dead ends: 58 [2018-09-21 17:54:41,214 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-21 17:54:41,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-21 17:54:41,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-09-21 17:54:41,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-09-21 17:54:41,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 57 transitions. [2018-09-21 17:54:41,219 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 57 transitions. Word has length 53 [2018-09-21 17:54:41,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:41,219 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 57 transitions. [2018-09-21 17:54:41,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 17:54:41,219 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 57 transitions. [2018-09-21 17:54:41,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-09-21 17:54:41,220 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:41,223 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, 1, 1, 1, 1, 1, 1] [2018-09-21 17:54:41,223 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:41,223 INFO L82 PathProgramCache]: Analyzing trace with hash -140233385, now seen corresponding path program 1 times [2018-09-21 17:54:41,224 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:54:41,224 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-21 17:54:41,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:41,512 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:54:41,644 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 17:54:41,653 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 17:54:41,654 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:41,663 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:41,711 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 17:54:41,712 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-21 17:54:41,796 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 17:54:41,813 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 17:54:41,814 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:41,838 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:41,880 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 17:54:41,880 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-21 17:54:42,073 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 17:54:42,082 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 17:54:42,082 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:42,093 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:42,134 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 17:54:42,134 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:33 [2018-09-21 17:54:42,281 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 17:54:42,290 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 17:54:42,290 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:42,297 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:42,329 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 17:54:42,329 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:27 [2018-09-21 17:54:43,216 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 32 [2018-09-21 17:54:43,495 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 17:54:43,496 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:54:43,513 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:43,513 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 17:54:43,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 17:54:43,514 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 17:54:43,514 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-09-21 17:54:43,514 INFO L87 Difference]: Start difference. First operand 58 states and 57 transitions. Second operand 13 states. [2018-09-21 17:54:44,103 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-21 17:54:44,395 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-21 17:54:46,014 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-21 17:54:47,057 WARN L178 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 17:54:48,114 WARN L178 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-09-21 17:54:48,482 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2018-09-21 17:54:48,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:48,990 INFO L93 Difference]: Finished difference Result 54 states and 53 transitions. [2018-09-21 17:54:49,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 17:54:49,006 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 57 [2018-09-21 17:54:49,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:49,007 INFO L225 Difference]: With dead ends: 54 [2018-09-21 17:54:49,007 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 17:54:49,007 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2018-09-21 17:54:49,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 17:54:49,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 17:54:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 17:54:49,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 17:54:49,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2018-09-21 17:54:49,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:49,008 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 17:54:49,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 17:54:49,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 17:54:49,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 17:54:49,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:54:49 BoogieIcfgContainer [2018-09-21 17:54:49,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:54:49,015 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:54:49,015 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:54:49,015 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:54:49,016 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:52:45" (3/4) ... [2018-09-21 17:54:49,021 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 17:54:49,027 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-09-21 17:54:49,027 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 17:54:49,027 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_double [2018-09-21 17:54:49,028 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 17:54:49,028 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_atan2 [2018-09-21 17:54:49,040 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-09-21 17:54:49,043 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-09-21 17:54:49,044 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 17:54:49,167 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 17:54:49,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:54:49,173 INFO L168 Benchmark]: Toolchain (without parser) took 147984.74 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 293.6 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -172.0 MB). Peak memory consumption was 121.6 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:49,174 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:54:49,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.61 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 933.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:49,176 INFO L168 Benchmark]: Boogie Preprocessor took 77.35 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:54:49,176 INFO L168 Benchmark]: RCFGBuilder took 24124.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -146.6 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:49,177 INFO L168 Benchmark]: TraceAbstraction took 123127.46 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 149.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -55.6 MB). Peak memory consumption was 94.4 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:49,177 INFO L168 Benchmark]: Witness Printer took 156.57 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:49,181 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 491.61 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 933.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.35 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 24124.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -146.6 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 123127.46 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 149.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -55.6 MB). Peak memory consumption was 94.4 MB. Max. memory is 11.5 GB. * Witness Printer took 156.57 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 258]: 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, 123.0s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 99.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1331 SDtfs, 2052 SDslu, 6543 SDs, 0 SdLazy, 1713 SolverSat, 154 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 66.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 550 GetRequests, 381 SyntacticMatches, 2 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 43.9s 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 19.7s InterpolantComputationTime, 473 NumberOfCodeBlocks, 473 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 463 ConstructedInterpolants, 260 QuantifiedInterpolants, 366565 SizeOfPredicates, 99 NumberOfNonLiveVariables, 1273 ConjunctsInSsa, 115 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...