/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0621a_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/float_req_bl_0621a_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 cd7d022a1ff6fee6b2d925b7876c30126acc994c --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/float_req_bl_0621a_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 cd7d022a1ff6fee6b2d925b7876c30126acc994c --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 18:20:46,695 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:20:46,697 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:20:46,709 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:20:46,709 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:20:46,711 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:20:46,712 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:20:46,714 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:20:46,716 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:20:46,717 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:20:46,718 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:20:46,718 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:20:46,719 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:20:46,720 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:20:46,722 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:20:46,722 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:20:46,723 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:20:46,725 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:20:46,728 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:20:46,729 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:20:46,731 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:20:46,732 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:20:46,735 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:20:46,735 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:20:46,735 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:20:46,736 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:20:46,737 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:20:46,738 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:20:46,739 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:20:46,741 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:20:46,741 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:20:46,742 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:20:46,742 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:20:46,742 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:20:46,743 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:20:46,744 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:20:46,744 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:20:46,761 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:20:46,761 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:20:46,764 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:20:46,765 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:20:46,765 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:20:46,766 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:20:46,766 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:20:46,766 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:20:46,766 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:20:46,767 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:20:46,767 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:20:46,767 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:20:46,774 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:20:46,774 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:20:46,774 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:20:46,774 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:20:46,774 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:20:46,774 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:20:46,775 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:20:46,775 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:20:46,775 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:20:46,775 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:20:46,775 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:20:46,776 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:20:46,776 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:20:46,776 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:20:46,776 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:20:46,776 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:20:46,776 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:20:46,777 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 -> cd7d022a1ff6fee6b2d925b7876c30126acc994c 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 18:20:46,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:20:46,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:20:46,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:20:46,877 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:20:46,877 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:20:46,878 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0621a_true-unreach-call.c [2018-09-21 18:20:47,226 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bb6c8ef0/ade0d92ddd00415889eb3ce4fb351e41/FLAG2f9d76d9a [2018-09-21 18:20:47,451 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:20:47,452 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0621a_true-unreach-call.c [2018-09-21 18:20:47,468 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bb6c8ef0/ade0d92ddd00415889eb3ce4fb351e41/FLAG2f9d76d9a [2018-09-21 18:20:47,496 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bb6c8ef0/ade0d92ddd00415889eb3ce4fb351e41 [2018-09-21 18:20:47,501 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:20:47,508 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:20:47,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:20:47,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:20:47,521 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:20:47,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:20:47" (1/1) ... [2018-09-21 18:20:47,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee5304a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:47, skipping insertion in model container [2018-09-21 18:20:47,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:20:47" (1/1) ... [2018-09-21 18:20:47,540 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:20:47,792 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:20:47,827 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:20:47,856 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:20:47,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:47 WrapperNode [2018-09-21 18:20:47,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:20:47,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:20:47,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:20:47,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:20:47,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:47" (1/1) ... [2018-09-21 18:20:47,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:47" (1/1) ... [2018-09-21 18:20:47,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:47" (1/1) ... [2018-09-21 18:20:47,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:47" (1/1) ... [2018-09-21 18:20:47,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:47" (1/1) ... [2018-09-21 18:20:47,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:47" (1/1) ... [2018-09-21 18:20:47,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:47" (1/1) ... [2018-09-21 18:20:48,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:20:48,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:20:48,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:20:48,003 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:20:48,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:47" (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 18:20:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:20:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:20:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:20:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:20:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:20:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:20:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:20:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:20:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:20:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:20:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:20:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:20:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:20:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:20:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:20:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:20:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:20:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:20:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:20:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:20:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:20:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:20:48,963 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:20:48,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:20:48 BoogieIcfgContainer [2018-09-21 18:20:48,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:20:48,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:20:48,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:20:48,969 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:20:48,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:20:47" (1/3) ... [2018-09-21 18:20:48,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd50ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:20:48, skipping insertion in model container [2018-09-21 18:20:48,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:47" (2/3) ... [2018-09-21 18:20:48,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd50ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:20:48, skipping insertion in model container [2018-09-21 18:20:48,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:20:48" (3/3) ... [2018-09-21 18:20:48,973 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621a_true-unreach-call.c [2018-09-21 18:20:48,984 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:20:48,993 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:20:49,033 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:20:49,033 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:20:49,033 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:20:49,034 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:20:49,034 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:20:49,034 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:20:49,034 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:20:49,034 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:20:49,035 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:20:49,053 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-09-21 18:20:49,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-21 18:20:49,067 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:20:49,069 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:20:49,075 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:20:49,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1907182082, now seen corresponding path program 1 times [2018-09-21 18:20:49,083 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:20:49,084 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:20:49,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:20:49,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:20:49,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:20:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:20:49,286 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 18:20:49,289 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:20:49,290 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:20:49,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:20:49,309 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:20:49,310 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:20:49,313 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-09-21 18:20:49,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:20:49,334 INFO L93 Difference]: Finished difference Result 69 states and 79 transitions. [2018-09-21 18:20:49,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:20:49,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-21 18:20:49,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:20:49,348 INFO L225 Difference]: With dead ends: 69 [2018-09-21 18:20:49,349 INFO L226 Difference]: Without dead ends: 65 [2018-09-21 18:20:49,351 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 18:20:49,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-09-21 18:20:49,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-09-21 18:20:49,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-09-21 18:20:49,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2018-09-21 18:20:49,397 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 17 [2018-09-21 18:20:49,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:20:49,398 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2018-09-21 18:20:49,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:20:49,398 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2018-09-21 18:20:49,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-21 18:20:49,400 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:20:49,400 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:20:49,400 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:20:49,401 INFO L82 PathProgramCache]: Analyzing trace with hash -26949235, now seen corresponding path program 1 times [2018-09-21 18:20:49,401 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:20:49,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:20:49,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:20:49,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:20:49,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:20:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:20:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:20:49,543 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:20:49,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:20:49 BoogieIcfgContainer [2018-09-21 18:20:49,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:20:49,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:20:49,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:20:49,581 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:20:49,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:20:48" (3/4) ... [2018-09-21 18:20:49,587 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:20:49,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:20:49,589 INFO L168 Benchmark]: Toolchain (without parser) took 2087.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 954.5 MB in the beginning and 1.0 GB in the end (delta: -91.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:20:49,591 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:20:49,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.00 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:20:49,593 INFO L168 Benchmark]: Boogie Preprocessor took 88.71 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 937.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:20:49,594 INFO L168 Benchmark]: RCFGBuilder took 961.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -138.3 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:20:49,595 INFO L168 Benchmark]: TraceAbstraction took 614.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:20:49,596 INFO L168 Benchmark]: Witness Printer took 6.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:20:49,601 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 404.00 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.71 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 937.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 961.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -138.3 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 614.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. * Witness Printer took 6.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 131]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 130, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 65, overapproximation of someBinaryArithmeticFLOAToperation at line 68. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L52-L54] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [\old(huge_atan)=26, \old(huge_floor)=22, \old(one_atan)=13, \old(pi)=23, \old(pi_o_2)=14, \old(pi_o_4)=19, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L127] float x = 1.0f / 0.0f; VAL [huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L128] CALL, EXPR atan_float(x) VAL [\old(x)=21, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L57] float w, s1, s2, z; [L58] __int32_t ix, hx, id; VAL [\old(x)=21, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L61] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=21, gf_u={17:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L62] FCALL gf_u.value = (x) VAL [\old(x)=21, gf_u={17:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L63] EXPR, FCALL gf_u.word VAL [\old(x)=21, gf_u={17:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L63] (hx) = gf_u.word VAL [\old(x)=21, gf_u={17:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L63] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=20, \old(x)=21, gf_u={17:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L64] COND FALSE !(0) VAL [\old(x)=21, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L65] ix = hx & 0x7fffffff VAL [\old(x)=21, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L66] COND TRUE ix >= 0x50800000 VAL [\old(x)=21, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=12, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L67] COND TRUE ((ix) > 0x7f800000L) [L68] RET return x + x; VAL [\old(x)=21, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=12, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L128] EXPR atan_float(x) VAL [atan_float(x)=18, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L128] float res = atan_float(x); [L130] COND TRUE res != pi_o_2 VAL [huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=18, x=21] [L131] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=18, x=21] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 72 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 79 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=69occurred 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, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 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 18:20:52,067 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:20:52,069 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:20:52,085 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:20:52,086 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:20:52,087 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:20:52,089 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:20:52,090 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:20:52,092 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:20:52,093 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:20:52,094 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:20:52,095 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:20:52,096 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:20:52,097 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:20:52,098 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:20:52,099 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:20:52,100 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:20:52,103 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:20:52,105 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:20:52,107 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:20:52,108 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:20:52,110 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:20:52,112 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:20:52,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:20:52,113 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:20:52,114 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:20:52,116 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:20:52,117 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:20:52,118 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:20:52,119 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:20:52,119 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:20:52,120 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:20:52,121 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:20:52,121 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:20:52,122 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:20:52,123 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:20:52,123 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:20:52,157 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:20:52,157 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:20:52,158 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:20:52,162 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:20:52,163 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:20:52,163 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:20:52,164 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:20:52,164 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:20:52,164 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:20:52,164 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:20:52,164 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:20:52,165 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:20:52,165 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:20:52,165 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:20:52,165 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:20:52,165 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:20:52,168 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:20:52,168 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:20:52,168 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:20:52,170 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:20:52,170 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:20:52,170 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:20:52,170 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:20:52,170 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:20:52,171 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:20:52,171 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:20:52,171 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:20:52,171 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:20:52,171 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:20:52,171 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:20:52,172 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:20:52,172 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 -> cd7d022a1ff6fee6b2d925b7876c30126acc994c 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 18:20:52,229 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:20:52,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:20:52,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:20:52,249 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:20:52,249 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:20:52,250 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0621a_true-unreach-call.c [2018-09-21 18:20:52,628 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cb423b35/d8b186e68c104981b528f280d995a11a/FLAGf2175d518 [2018-09-21 18:20:52,860 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:20:52,861 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0621a_true-unreach-call.c [2018-09-21 18:20:52,872 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cb423b35/d8b186e68c104981b528f280d995a11a/FLAGf2175d518 [2018-09-21 18:20:52,889 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cb423b35/d8b186e68c104981b528f280d995a11a [2018-09-21 18:20:52,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:20:52,898 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:20:52,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:20:52,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:20:52,908 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:20:52,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:20:52" (1/1) ... [2018-09-21 18:20:52,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb51be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:52, skipping insertion in model container [2018-09-21 18:20:52,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:20:52" (1/1) ... [2018-09-21 18:20:52,930 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:20:53,250 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:20:53,276 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:20:53,338 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:20:53,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:53 WrapperNode [2018-09-21 18:20:53,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:20:53,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:20:53,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:20:53,394 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:20:53,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:53" (1/1) ... [2018-09-21 18:20:53,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:53" (1/1) ... [2018-09-21 18:20:53,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:53" (1/1) ... [2018-09-21 18:20:53,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:53" (1/1) ... [2018-09-21 18:20:53,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:53" (1/1) ... [2018-09-21 18:20:53,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:53" (1/1) ... [2018-09-21 18:20:53,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:53" (1/1) ... [2018-09-21 18:20:53,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:20:53,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:20:53,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:20:53,457 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:20:53,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:53" (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 18:20:53,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:20:53,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:20:53,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:20:53,607 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:20:53,607 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:20:53,607 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:20:53,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:20:53,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:20:53,608 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:20:53,608 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:20:53,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:20:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:20:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:20:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:20:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:20:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:20:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:20:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:20:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:20:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:20:53,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:20:53,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:20:56,008 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:20:56,052 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:20:56,549 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:20:58,750 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:21:06,979 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:21:06,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:21:06 BoogieIcfgContainer [2018-09-21 18:21:06,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:21:06,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:21:06,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:21:06,985 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:21:06,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:20:52" (1/3) ... [2018-09-21 18:21:06,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504048fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:21:06, skipping insertion in model container [2018-09-21 18:21:06,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:20:53" (2/3) ... [2018-09-21 18:21:06,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504048fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:21:06, skipping insertion in model container [2018-09-21 18:21:06,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:21:06" (3/3) ... [2018-09-21 18:21:06,990 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621a_true-unreach-call.c [2018-09-21 18:21:06,998 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:21:07,005 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:21:07,043 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:21:07,044 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:21:07,045 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:21:07,045 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:21:07,045 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:21:07,045 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:21:07,046 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:21:07,046 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:21:07,046 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:21:07,065 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-09-21 18:21:07,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-21 18:21:07,079 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:21:07,083 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:21:07,087 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:21:07,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1907182082, now seen corresponding path program 1 times [2018-09-21 18:21:07,097 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:21:07,097 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 18:21:07,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:21:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:21:07,218 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:21:07,237 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 18:21:07,240 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:21:07,254 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:21:07,254 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:21:07,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:21:07,272 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:21:07,273 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:21:07,275 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-09-21 18:21:07,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:21:07,297 INFO L93 Difference]: Finished difference Result 69 states and 79 transitions. [2018-09-21 18:21:07,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:21:07,300 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-21 18:21:07,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:21:07,313 INFO L225 Difference]: With dead ends: 69 [2018-09-21 18:21:07,313 INFO L226 Difference]: Without dead ends: 65 [2018-09-21 18:21:07,316 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 18:21:07,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-09-21 18:21:07,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-09-21 18:21:07,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-09-21 18:21:07,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2018-09-21 18:21:07,363 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 17 [2018-09-21 18:21:07,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:21:07,364 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2018-09-21 18:21:07,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:21:07,364 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2018-09-21 18:21:07,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-21 18:21:07,366 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:21:07,366 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:21:07,366 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:21:07,367 INFO L82 PathProgramCache]: Analyzing trace with hash -26949235, now seen corresponding path program 1 times [2018-09-21 18:21:07,368 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:21:07,368 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 18:21:07,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:21:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:21:07,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:21:07,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:21:07,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:21:07,605 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:21:07,629 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:21:07,710 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:21:07,711 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:21:07,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:21:07,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:21:07,835 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:21:07,863 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:21:07,886 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:21:07,887 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:21:08,231 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 18:21:08,231 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:21:08,248 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:21:08,248 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:21:08,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:21:08,250 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:21:08,253 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:21:08,253 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand 9 states. [2018-09-21 18:21:20,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:21:20,335 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2018-09-21 18:21:20,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:21:20,401 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-09-21 18:21:20,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:21:20,405 INFO L225 Difference]: With dead ends: 70 [2018-09-21 18:21:20,405 INFO L226 Difference]: Without dead ends: 68 [2018-09-21 18:21:20,410 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:21:20,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-09-21 18:21:20,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2018-09-21 18:21:20,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-09-21 18:21:20,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 74 transitions. [2018-09-21 18:21:20,420 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 74 transitions. Word has length 26 [2018-09-21 18:21:20,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:21:20,420 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 74 transitions. [2018-09-21 18:21:20,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:21:20,421 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 74 transitions. [2018-09-21 18:21:20,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-21 18:21:20,423 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:21:20,423 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] [2018-09-21 18:21:20,423 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:21:20,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1376969991, now seen corresponding path program 1 times [2018-09-21 18:21:20,424 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:21:20,424 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 18:21:20,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:21:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:21:20,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:21:20,770 INFO L303 Elim1Store]: Index analysis took 245 ms [2018-09-21 18:21:20,771 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2018-09-21 18:21:24,796 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE (/ 37748947079.0 1000000000000000000.0))) (select v_arrayElimArr_1 (_ bv0 32))) [2018-09-21 18:21:24,797 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:21:24,800 INFO L303 Elim1Store]: Index analysis took 4027 ms [2018-09-21 18:21:24,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2018-09-21 18:21:28,477 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimArr_2 (_ bv1 32)) (select v_arrayElimArr_2 (_ bv0 32))) [2018-09-21 18:21:28,478 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:21:30,533 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE (/ 3447321717.0 100000000000000000.0))) (select v_arrayElimArr_2 (_ bv1 32))) [2018-09-21 18:21:30,535 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:21:31,355 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:21:31,357 INFO L303 Elim1Store]: Index analysis took 6553 ms [2018-09-21 18:21:31,359 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 76 [2018-09-21 18:21:32,137 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:21:33,381 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:21:34,049 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:21:34,143 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:21:35,347 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:21:36,797 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:21:36,800 INFO L303 Elim1Store]: Index analysis took 5438 ms [2018-09-21 18:21:36,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 121 [2018-09-21 18:21:36,804 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-09-21 18:21:49,829 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:21:56,952 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:02,928 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:15,406 INFO L303 Elim1Store]: Index analysis took 2019 ms [2018-09-21 18:22:15,407 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2018-09-21 18:22:15,664 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:15,666 INFO L303 Elim1Store]: Index analysis took 257 ms [2018-09-21 18:22:15,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2018-09-21 18:22:15,903 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:16,112 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:16,222 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:16,224 INFO L303 Elim1Store]: Index analysis took 554 ms [2018-09-21 18:22:16,225 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 76 [2018-09-21 18:22:16,271 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:16,314 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:16,355 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:16,408 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:16,433 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:16,455 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:16,457 INFO L303 Elim1Store]: Index analysis took 228 ms [2018-09-21 18:22:16,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 121 [2018-09-21 18:22:16,461 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:16,609 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:16,684 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:16,748 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:16,887 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:16,888 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:70, output treesize:80 [2018-09-21 18:22:17,039 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-09-21 18:22:17,514 WARN L178 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-09-21 18:22:17,547 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:17,551 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:17,555 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:17,560 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:17,569 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:17,574 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:17,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 61 [2018-09-21 18:22:17,580 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:17,851 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:17,859 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:17,862 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:17,865 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:17,870 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:17,873 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:22:17,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 63 [2018-09-21 18:22:17,877 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:17,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:17,950 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:90, output treesize:22 [2018-09-21 18:22:18,079 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 18:22:18,080 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:18,090 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:18,091 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 18:22:18,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 18:22:18,093 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 18:22:18,093 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-21 18:22:18,094 INFO L87 Difference]: Start difference. First operand 65 states and 74 transitions. Second operand 6 states. [2018-09-21 18:22:25,024 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-09-21 18:22:25,291 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-09-21 18:22:28,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:28,617 INFO L93 Difference]: Finished difference Result 71 states and 79 transitions. [2018-09-21 18:22:28,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-21 18:22:28,620 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-09-21 18:22:28,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:28,622 INFO L225 Difference]: With dead ends: 71 [2018-09-21 18:22:28,622 INFO L226 Difference]: Without dead ends: 67 [2018-09-21 18:22:28,622 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:22:28,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-09-21 18:22:28,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2018-09-21 18:22:28,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-09-21 18:22:28,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2018-09-21 18:22:28,633 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 27 [2018-09-21 18:22:28,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:28,633 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2018-09-21 18:22:28,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 18:22:28,634 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2018-09-21 18:22:28,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-21 18:22:28,635 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:28,635 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] [2018-09-21 18:22:28,636 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:28,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1348340840, now seen corresponding path program 1 times [2018-09-21 18:22:28,636 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:22:28,637 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 18:22:28,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:28,742 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:22:28,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:22:28,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:22:28,807 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:28,814 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:28,826 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:28,826 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:22:28,849 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:22:28,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:22:28,868 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:28,887 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:28,896 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:28,896 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:22:28,991 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 18:22:28,992 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:29,003 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:29,003 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:22:29,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:22:29,004 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:22:29,004 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:22:29,004 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand 8 states. [2018-09-21 18:22:43,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:43,010 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2018-09-21 18:22:43,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:22:43,077 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-09-21 18:22:43,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:43,079 INFO L225 Difference]: With dead ends: 70 [2018-09-21 18:22:43,079 INFO L226 Difference]: Without dead ends: 66 [2018-09-21 18:22:43,080 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:22:43,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-09-21 18:22:43,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2018-09-21 18:22:43,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-21 18:22:43,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2018-09-21 18:22:43,087 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 27 [2018-09-21 18:22:43,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:43,088 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2018-09-21 18:22:43,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:22:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2018-09-21 18:22:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-21 18:22:43,091 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:43,091 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] [2018-09-21 18:22:43,091 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:43,091 INFO L82 PathProgramCache]: Analyzing trace with hash -370068822, now seen corresponding path program 1 times [2018-09-21 18:22:43,092 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:22:43,093 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 18:22:43,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:43,184 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:22:43,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:22:43,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:22:43,218 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:43,223 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:43,236 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:43,236 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:22:43,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:22:43,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:22:43,270 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:43,273 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:43,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:43,281 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:22:43,421 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 18:22:43,422 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:43,433 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:43,433 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:22:43,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:22:43,434 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:22:43,434 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:22:43,436 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand 9 states. [2018-09-21 18:22:54,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:54,832 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2018-09-21 18:22:54,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:22:54,909 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-09-21 18:22:54,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:54,910 INFO L225 Difference]: With dead ends: 67 [2018-09-21 18:22:54,911 INFO L226 Difference]: Without dead ends: 65 [2018-09-21 18:22:54,911 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:22:54,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-09-21 18:22:54,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2018-09-21 18:22:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-21 18:22:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2018-09-21 18:22:54,918 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 28 [2018-09-21 18:22:54,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:54,918 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2018-09-21 18:22:54,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:22:54,919 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2018-09-21 18:22:54,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 18:22:54,921 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:54,921 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] [2018-09-21 18:22:54,921 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:54,922 INFO L82 PathProgramCache]: Analyzing trace with hash 769793096, now seen corresponding path program 1 times [2018-09-21 18:22:54,922 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:22:54,922 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 18:22:54,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:56,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:22:56,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:22:56,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:22:56,055 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:56,063 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:56,075 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:56,076 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:22:56,099 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:22:56,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:22:56,103 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:56,106 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:56,109 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:56,110 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:22:56,294 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 18:22:56,295 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:56,324 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:56,325 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:22:56,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:22:56,325 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:22:56,325 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:22:56,326 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 9 states. [2018-09-21 18:23:09,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:09,853 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2018-09-21 18:23:09,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:23:09,922 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-21 18:23:09,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:09,923 INFO L225 Difference]: With dead ends: 60 [2018-09-21 18:23:09,923 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:23:09,923 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:23:09,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:23:09,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:23:09,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:23:09,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:23:09,925 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-09-21 18:23:09,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:09,925 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:23:09,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:23:09,925 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:23:09,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:23:09,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:23:09 BoogieIcfgContainer [2018-09-21 18:23:09,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:23:09,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:23:09,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:23:09,933 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:23:09,934 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:21:06" (3/4) ... [2018-09-21 18:23:09,941 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:23:09,947 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-21 18:23:09,948 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:23:09,948 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:23:09,948 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:23:09,948 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-09-21 18:23:09,955 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-09-21 18:23:09,955 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-21 18:23:09,956 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:23:10,038 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:23:10,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:23:10,039 INFO L168 Benchmark]: Toolchain (without parser) took 137144.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -130.9 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:10,040 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:23:10,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:10,041 INFO L168 Benchmark]: Boogie Preprocessor took 60.77 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:23:10,041 INFO L168 Benchmark]: RCFGBuilder took 13523.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 937.1 MB in the beginning and 1.0 GB in the end (delta: -108.8 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:10,041 INFO L168 Benchmark]: TraceAbstraction took 122951.55 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -46.2 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:10,042 INFO L168 Benchmark]: Witness Printer took 105.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:10,049 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 493.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.77 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 13523.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 937.1 MB in the beginning and 1.0 GB in the end (delta: -108.8 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 122951.55 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -46.2 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * Witness Printer took 105.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 131]: 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, 72 locations, 1 error locations. SAFE Result, 122.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 61.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 359 SDtfs, 293 SDslu, 1367 SDs, 0 SdLazy, 472 SolverSat, 22 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 57.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred 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, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 59.2s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 149 ConstructedInterpolants, 20 QuantifiedInterpolants, 69226 SizeOfPredicates, 35 NumberOfNonLiveVariables, 488 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...