/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0670_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_0670_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 c6b275d471d235c565842a02c594b024c1203d73 --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_0670_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 c6b275d471d235c565842a02c594b024c1203d73 --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 18:23:13,828 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:23:13,830 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:23:13,842 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:23:13,842 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:23:13,843 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:23:13,844 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:23:13,846 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:23:13,848 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:23:13,848 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:23:13,849 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:23:13,850 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:23:13,850 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:23:13,851 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:23:13,853 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:23:13,853 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:23:13,854 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:23:13,859 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:23:13,863 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:23:13,868 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:23:13,870 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:23:13,874 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:23:13,877 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:23:13,877 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:23:13,877 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:23:13,881 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:23:13,882 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:23:13,883 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:23:13,883 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:23:13,888 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:23:13,889 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:23:13,891 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:23:13,891 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:23:13,891 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:23:13,892 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:23:13,894 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:23:13,896 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:23:13,925 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:23:13,926 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:23:13,927 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:23:13,928 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:23:13,929 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:23:13,929 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:23:13,929 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:23:13,931 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:23:13,931 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:23:13,931 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:23:13,931 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:23:13,932 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:23:13,932 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:23:13,932 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:23:13,932 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:23:13,933 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:23:13,933 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:23:13,933 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:23:13,934 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:23:13,934 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:23:13,934 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:23:13,934 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:23:13,934 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:23:13,937 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:23:13,937 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:23:13,937 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:23:13,939 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:23:13,939 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:23:13,939 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:23:13,939 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 -> c6b275d471d235c565842a02c594b024c1203d73 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 18:23:14,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:23:14,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:23:14,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:23:14,050 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:23:14,051 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:23:14,054 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0670_true-unreach-call.c [2018-09-21 18:23:14,420 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa622d374/b3d480e7dbef40bf9b7fd46f6b8ca766/FLAGe5b446ec5 [2018-09-21 18:23:14,629 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:23:14,630 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0670_true-unreach-call.c [2018-09-21 18:23:14,640 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa622d374/b3d480e7dbef40bf9b7fd46f6b8ca766/FLAGe5b446ec5 [2018-09-21 18:23:14,656 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa622d374/b3d480e7dbef40bf9b7fd46f6b8ca766 [2018-09-21 18:23:14,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:23:14,664 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:23:14,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:23:14,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:23:14,672 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:23:14,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:23:14" (1/1) ... [2018-09-21 18:23:14,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6adfb97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:14, skipping insertion in model container [2018-09-21 18:23:14,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:23:14" (1/1) ... [2018-09-21 18:23:14,690 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:23:14,949 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:23:14,973 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:23:15,017 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:23:15,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:15 WrapperNode [2018-09-21 18:23:15,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:23:15,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:23:15,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:23:15,091 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:23:15,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:15" (1/1) ... [2018-09-21 18:23:15,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:15" (1/1) ... [2018-09-21 18:23:15,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:15" (1/1) ... [2018-09-21 18:23:15,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:15" (1/1) ... [2018-09-21 18:23:15,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:15" (1/1) ... [2018-09-21 18:23:15,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:15" (1/1) ... [2018-09-21 18:23:15,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:15" (1/1) ... [2018-09-21 18:23:15,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:23:15,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:23:15,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:23:15,180 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:23:15,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:23:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:23:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:23:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:23:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:23:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:23:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:23:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:23:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:23:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:23:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:23:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:23:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:23:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:23:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:23:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:23:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:23:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:23:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:23:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:23:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:23:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:23:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:23:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:23:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:23:16,501 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:23:16,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:16 BoogieIcfgContainer [2018-09-21 18:23:16,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:23:16,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:23:16,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:23:16,506 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:23:16,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:23:14" (1/3) ... [2018-09-21 18:23:16,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca319fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:23:16, skipping insertion in model container [2018-09-21 18:23:16,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:15" (2/3) ... [2018-09-21 18:23:16,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca319fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:23:16, skipping insertion in model container [2018-09-21 18:23:16,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:16" (3/3) ... [2018-09-21 18:23:16,511 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670_true-unreach-call.c [2018-09-21 18:23:16,519 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:23:16,527 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:23:16,568 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:23:16,568 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:23:16,569 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:23:16,569 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:23:16,569 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:23:16,569 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:23:16,569 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:23:16,570 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:23:16,570 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:23:16,590 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2018-09-21 18:23:16,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 18:23:16,606 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:16,607 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 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 18:23:16,610 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:16,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1922002514, now seen corresponding path program 1 times [2018-09-21 18:23:16,618 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:23:16,619 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:23:16,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:23:16,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:16,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:23:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:16,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-09-21 18:23:16,818 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:16,819 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:23:16,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:23:16,840 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:23:16,841 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:23:16,844 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2018-09-21 18:23:16,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:16,877 INFO L93 Difference]: Finished difference Result 167 states and 210 transitions. [2018-09-21 18:23:16,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:23:16,878 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 30 [2018-09-21 18:23:16,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:16,894 INFO L225 Difference]: With dead ends: 167 [2018-09-21 18:23:16,894 INFO L226 Difference]: Without dead ends: 162 [2018-09-21 18:23:16,896 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 18:23:16,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-09-21 18:23:16,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2018-09-21 18:23:16,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-09-21 18:23:16,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 204 transitions. [2018-09-21 18:23:16,960 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 204 transitions. Word has length 30 [2018-09-21 18:23:16,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:16,962 INFO L480 AbstractCegarLoop]: Abstraction has 162 states and 204 transitions. [2018-09-21 18:23:16,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:23:16,962 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 204 transitions. [2018-09-21 18:23:16,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-21 18:23:16,966 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:16,966 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:23:16,966 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:16,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1515697700, now seen corresponding path program 1 times [2018-09-21 18:23:16,967 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:23:16,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:23:16,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:23:16,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:16,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:23:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:23:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:23:17,211 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:23:17,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:23:17 BoogieIcfgContainer [2018-09-21 18:23:17,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:23:17,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:23:17,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:23:17,285 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:23:17,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:16" (3/4) ... [2018-09-21 18:23:17,292 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:23:17,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:23:17,293 INFO L168 Benchmark]: Toolchain (without parser) took 2632.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 950.5 MB in the beginning and 1.0 GB in the end (delta: -92.5 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:17,296 INFO L168 Benchmark]: CDTParser took 0.24 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 18:23:17,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.97 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:17,298 INFO L168 Benchmark]: Boogie Preprocessor took 88.84 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:23:17,298 INFO L168 Benchmark]: RCFGBuilder took 1322.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -143.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:17,300 INFO L168 Benchmark]: TraceAbstraction took 781.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:23:17,301 INFO L168 Benchmark]: Witness Printer took 7.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:23:17,306 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 424.97 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.84 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1322.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -143.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 781.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. * Witness Printer took 7.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 234]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 136, overapproximation of someBinaryArithmeticFLOAToperation at line 138. Possible FailurePath: [L30-L35] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L30-L35] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L30-L35] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L30-L35] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L37-L42] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L37-L42] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L37-L42] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L37-L42] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L44-L48] 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, }; [L44-L48] 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, }; [L44-L48] 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, }; [L44-L48] 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, }; [L44-L48] 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, }; [L44-L48] 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, }; [L44-L48] 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, }; [L44-L48] 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, }; [L44-L48] 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, }; [L44-L48] 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, }; [L44-L48] 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, }; [L50-L52] 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; [L118-L119] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [\old(huge_atan)=6442450955, \old(one_atan)=6442450945, \old(pi)=6442450952, \old(pi_lo_atan2)=6442450965, \old(pi_o_2)=6442450946, \old(pi_o_4)=6442450950, \old(tiny_atan2)=6442450960, \old(zero_atan2)=6442450958, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L224] float x = __VERIFIER_nondet_float(); [L225] float y = __VERIFIER_nondet_float(); [L227] CALL, EXPR isnan_float(x) VAL [\old(x)=6442450951, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L13] RET return x != x; VAL [\old(x)=6442450951, \result=1, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, zero_atan2=0] [L227] EXPR isnan_float(x) VAL [huge_atan=1000000000000000000000000000000, isnan_float(x)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L227] isnan_float(x) || isnan_float(y) VAL [huge_atan=1000000000000000000000000000000, isnan_float(x)=1, isnan_float(x) || isnan_float(y)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L227] COND TRUE isnan_float(x) || isnan_float(y) VAL [huge_atan=1000000000000000000000000000000, isnan_float(x)=1, isnan_float(x) || isnan_float(y)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L227] COND TRUE isnan_float(x) || isnan_float(y) [L230] CALL, EXPR __ieee754_atan2f(y, x) VAL [\old(x)=6442450951, \old(y)=6442450957, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L122] float z; [L123] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=6442450951, \old(y)=6442450957, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L126] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450951, \old(y)=6442450957, gf_u={6442450961:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L127] FCALL gf_u.value = (x) VAL [\old(x)=6442450951, \old(y)=6442450957, gf_u={6442450961:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L128] EXPR, FCALL gf_u.word VAL [\old(x)=6442450951, \old(y)=6442450957, gf_u={6442450961:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L128] (hx) = gf_u.word VAL [\old(x)=6442450951, \old(y)=6442450957, gf_u={6442450961:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L128] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=6442450959, \old(x)=6442450951, \old(y)=6442450957, gf_u={6442450961:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L129] COND FALSE !(0) VAL [\old(x)=6442450951, \old(y)=6442450957, huge_atan=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L130] ix = hx & 0x7fffffff VAL [\old(x)=6442450951, \old(y)=6442450957, huge_atan=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L132] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450951, \old(y)=6442450957, gf_u={6442450966:0}, huge_atan=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L133] FCALL gf_u.value = (y) VAL [\old(x)=6442450951, \old(y)=6442450957, gf_u={6442450966:0}, huge_atan=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L134] EXPR, FCALL gf_u.word VAL [\old(x)=6442450951, \old(y)=6442450957, gf_u={6442450966:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L134] (hy) = gf_u.word VAL [\old(x)=6442450951, \old(y)=6442450957, gf_u={6442450966:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, hx=12, hy=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L134] FCALL (hy) = gf_u.word VAL [(hy) = gf_u.word=6442450947, \old(x)=6442450951, \old(y)=6442450957, gf_u={6442450966:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, hx=12, hy=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L135] COND FALSE !(0) VAL [\old(x)=6442450951, \old(y)=6442450957, huge_atan=1000000000000000000000000000000, hx=12, hy=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L136] iy = hy & 0x7fffffff VAL [\old(x)=6442450951, \old(y)=6442450957, huge_atan=1000000000000000000000000000000, hx=12, hy=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L137] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L138] RET return x + y; VAL [\old(x)=6442450951, \old(y)=6442450957, huge_atan=1000000000000000000000000000000, hx=12, hy=-2147483648, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L230] EXPR __ieee754_atan2f(y, x) VAL [__ieee754_atan2f(y, x)=6442450956, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L230] float res = __ieee754_atan2f(y, x); [L233] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450956, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L13] RET return x != x; VAL [\old(x)=6442450956, \result=0, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450956, zero_atan2=0] [L233] EXPR isnan_float(res) VAL [huge_atan=1000000000000000000000000000000, isnan_float(res)=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450956, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] [L233] COND TRUE !isnan_float(res) [L234] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450956, tiny_atan2=1/1000000000000000000000000000000, x=6442450951, y=6442450957, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 167 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 210 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=167occurred 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, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 841 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 18:23:19,698 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:23:19,700 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:23:19,712 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:23:19,713 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:23:19,714 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:23:19,715 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:23:19,717 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:23:19,719 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:23:19,720 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:23:19,721 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:23:19,721 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:23:19,722 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:23:19,724 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:23:19,725 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:23:19,726 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:23:19,727 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:23:19,729 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:23:19,731 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:23:19,733 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:23:19,735 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:23:19,736 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:23:19,739 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:23:19,739 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:23:19,740 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:23:19,741 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:23:19,742 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:23:19,743 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:23:19,744 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:23:19,746 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:23:19,746 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:23:19,747 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:23:19,747 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:23:19,747 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:23:19,749 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:23:19,749 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:23:19,750 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:23:19,778 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:23:19,778 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:23:19,779 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:23:19,779 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:23:19,780 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:23:19,780 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:23:19,781 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:23:19,782 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:23:19,782 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:23:19,782 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:23:19,782 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:23:19,782 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:23:19,783 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:23:19,783 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:23:19,784 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:23:19,784 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:23:19,784 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:23:19,784 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:23:19,784 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:23:19,785 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:23:19,785 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:23:19,785 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:23:19,785 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:23:19,785 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:23:19,788 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:23:19,788 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:23:19,789 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:23:19,789 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:23:19,789 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:23:19,789 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:23:19,789 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:23:19,790 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 -> c6b275d471d235c565842a02c594b024c1203d73 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 18:23:19,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:23:19,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:23:19,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:23:19,894 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:23:19,895 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:23:19,896 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0670_true-unreach-call.c [2018-09-21 18:23:20,143 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60674a12f/62c5cab0b03644fd92c3009e73c78854/FLAGaea541e5a [2018-09-21 18:23:20,379 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:23:20,380 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0670_true-unreach-call.c [2018-09-21 18:23:20,393 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60674a12f/62c5cab0b03644fd92c3009e73c78854/FLAGaea541e5a [2018-09-21 18:23:20,412 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60674a12f/62c5cab0b03644fd92c3009e73c78854 [2018-09-21 18:23:20,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:23:20,422 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:23:20,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:23:20,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:23:20,431 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:23:20,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:23:20" (1/1) ... [2018-09-21 18:23:20,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e07301e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:20, skipping insertion in model container [2018-09-21 18:23:20,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:23:20" (1/1) ... [2018-09-21 18:23:20,449 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:23:20,813 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:23:20,838 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:23:20,893 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:23:20,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:20 WrapperNode [2018-09-21 18:23:20,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:23:20,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:23:20,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:23:20,952 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:23:20,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:20" (1/1) ... [2018-09-21 18:23:20,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:20" (1/1) ... [2018-09-21 18:23:20,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:20" (1/1) ... [2018-09-21 18:23:20,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:20" (1/1) ... [2018-09-21 18:23:21,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:20" (1/1) ... [2018-09-21 18:23:21,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:20" (1/1) ... [2018-09-21 18:23:21,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:20" (1/1) ... [2018-09-21 18:23:21,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:23:21,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:23:21,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:23:21,027 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:23:21,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:20" (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 18:23:21,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:23:21,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:23:21,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:23:21,187 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:23:21,187 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:23:21,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:23:21,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:23:21,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:23:21,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:23:21,188 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:23:21,188 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:23:21,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:23:21,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:23:21,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:23:21,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:23:21,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:23:21,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:23:21,191 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:23:21,191 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:23:21,191 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:23:21,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:23:21,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:23:21,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:23:21,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:23:21,581 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:21,633 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:21,741 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:21,764 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:22,689 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:22,715 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:25,714 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:25,721 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:31,284 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:33,454 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:23:35,173 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:23:35,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:35 BoogieIcfgContainer [2018-09-21 18:23:35,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:23:35,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:23:35,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:23:35,178 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:23:35,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:23:20" (1/3) ... [2018-09-21 18:23:35,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7461d938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:23:35, skipping insertion in model container [2018-09-21 18:23:35,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:23:20" (2/3) ... [2018-09-21 18:23:35,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7461d938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:23:35, skipping insertion in model container [2018-09-21 18:23:35,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:35" (3/3) ... [2018-09-21 18:23:35,183 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670_true-unreach-call.c [2018-09-21 18:23:35,195 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:23:35,205 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:23:35,255 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:23:35,256 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:23:35,257 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:23:35,257 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:23:35,257 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:23:35,257 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:23:35,257 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:23:35,258 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:23:35,258 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:23:35,283 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2018-09-21 18:23:35,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-21 18:23:35,298 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:35,300 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 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 18:23:35,303 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:35,310 INFO L82 PathProgramCache]: Analyzing trace with hash 451663210, now seen corresponding path program 1 times [2018-09-21 18:23:35,317 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:35,317 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 18:23:35,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:35,509 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:35,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:23:35,535 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:35,551 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:35,551 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:23:35,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:23:35,569 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:23:35,570 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:23:35,573 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 2 states. [2018-09-21 18:23:35,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:23:35,609 INFO L93 Difference]: Finished difference Result 166 states and 209 transitions. [2018-09-21 18:23:35,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:23:35,612 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2018-09-21 18:23:35,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:23:35,627 INFO L225 Difference]: With dead ends: 166 [2018-09-21 18:23:35,627 INFO L226 Difference]: Without dead ends: 161 [2018-09-21 18:23:35,629 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 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 18:23:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-09-21 18:23:35,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2018-09-21 18:23:35,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-09-21 18:23:35,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 203 transitions. [2018-09-21 18:23:35,687 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 203 transitions. Word has length 29 [2018-09-21 18:23:35,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:23:35,689 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 203 transitions. [2018-09-21 18:23:35,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:23:35,690 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 203 transitions. [2018-09-21 18:23:35,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-21 18:23:35,695 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:23:35,696 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:23:35,696 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:23:35,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1527564420, now seen corresponding path program 1 times [2018-09-21 18:23:35,698 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:23:35,698 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 18:23:35,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:23:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:23:35,857 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:23:36,213 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:23:36,402 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-21 18:23:40,945 WARN L178 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-09-21 18:23:42,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-09-21 18:23:42,744 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:23:42,759 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:23:42,760 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:23:42,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:23:42,762 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:23:42,764 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:23:42,765 INFO L87 Difference]: Start difference. First operand 161 states and 203 transitions. Second operand 11 states. [2018-09-21 18:23:48,793 WARN L178 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 8 [2018-09-21 18:23:54,367 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-21 18:23:56,230 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:23:57,670 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:24:16,367 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:24:20,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:24:20,029 INFO L93 Difference]: Finished difference Result 173 states and 217 transitions. [2018-09-21 18:24:20,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:24:20,050 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 47 [2018-09-21 18:24:20,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:24:20,055 INFO L225 Difference]: With dead ends: 173 [2018-09-21 18:24:20,055 INFO L226 Difference]: Without dead ends: 170 [2018-09-21 18:24:20,056 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=47, Invalid=223, Unknown=2, NotChecked=0, Total=272 [2018-09-21 18:24:20,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-09-21 18:24:20,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 165. [2018-09-21 18:24:20,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-09-21 18:24:20,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 208 transitions. [2018-09-21 18:24:20,084 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 208 transitions. Word has length 47 [2018-09-21 18:24:20,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:24:20,084 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 208 transitions. [2018-09-21 18:24:20,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:24:20,084 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 208 transitions. [2018-09-21 18:24:20,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-21 18:24:20,088 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:24:20,088 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:24:20,089 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:24:20,089 INFO L82 PathProgramCache]: Analyzing trace with hash 788209589, now seen corresponding path program 1 times [2018-09-21 18:24:20,090 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:24:20,090 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 18:24:20,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:24:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:24:20,241 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:24:24,261 WARN L178 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-09-21 18:24:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-21 18:24:28,071 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:24:28,096 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:24:28,096 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:24:28,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:24:28,097 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:24:28,097 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=90, Unknown=1, NotChecked=0, Total=110 [2018-09-21 18:24:28,098 INFO L87 Difference]: Start difference. First operand 165 states and 208 transitions. Second operand 11 states. [2018-09-21 18:24:30,128 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-21 18:24:51,553 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:24:56,181 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:24:59,505 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:25:01,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:01,188 INFO L93 Difference]: Finished difference Result 175 states and 219 transitions. [2018-09-21 18:25:01,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:25:01,199 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2018-09-21 18:25:01,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:01,202 INFO L225 Difference]: With dead ends: 175 [2018-09-21 18:25:01,202 INFO L226 Difference]: Without dead ends: 170 [2018-09-21 18:25:01,203 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=41, Invalid=196, Unknown=3, NotChecked=0, Total=240 [2018-09-21 18:25:01,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-09-21 18:25:01,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 165. [2018-09-21 18:25:01,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-09-21 18:25:01,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 207 transitions. [2018-09-21 18:25:01,217 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 207 transitions. Word has length 52 [2018-09-21 18:25:01,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:01,218 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 207 transitions. [2018-09-21 18:25:01,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:25:01,218 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 207 transitions. [2018-09-21 18:25:01,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-21 18:25:01,222 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:01,222 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:01,223 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:01,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1873274995, now seen corresponding path program 1 times [2018-09-21 18:25:01,224 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:01,224 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 18:25:01,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:01,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:01,595 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 18:25:01,600 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 18:25:01,600 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:01,608 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:01,621 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 18:25:01,622 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:25:01,682 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 18:25:01,695 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 18:25:01,696 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:01,699 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:01,702 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 18:25:01,702 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:25:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:25:01,968 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:01,979 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:01,979 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-21 18:25:01,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-21 18:25:01,980 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-21 18:25:01,980 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-09-21 18:25:01,981 INFO L87 Difference]: Start difference. First operand 165 states and 207 transitions. Second operand 12 states. [2018-09-21 18:25:04,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:04,429 INFO L93 Difference]: Finished difference Result 172 states and 214 transitions. [2018-09-21 18:25:04,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:25:04,432 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2018-09-21 18:25:04,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:04,434 INFO L225 Difference]: With dead ends: 172 [2018-09-21 18:25:04,434 INFO L226 Difference]: Without dead ends: 172 [2018-09-21 18:25:04,435 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:25:04,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-09-21 18:25:04,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 167. [2018-09-21 18:25:04,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-09-21 18:25:04,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 209 transitions. [2018-09-21 18:25:04,447 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 209 transitions. Word has length 52 [2018-09-21 18:25:04,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:04,447 INFO L480 AbstractCegarLoop]: Abstraction has 167 states and 209 transitions. [2018-09-21 18:25:04,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-21 18:25:04,447 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 209 transitions. [2018-09-21 18:25:04,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-21 18:25:04,450 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:04,450 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:04,451 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:04,451 INFO L82 PathProgramCache]: Analyzing trace with hash 30156725, now seen corresponding path program 1 times [2018-09-21 18:25:04,452 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:04,452 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 18:25:04,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:04,552 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:04,779 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 18:25:04,783 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 18:25:04,784 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:04,788 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:04,798 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 18:25:04,799 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:25:04,834 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 18:25:04,837 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 18:25:04,838 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:04,842 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:04,845 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 18:25:04,846 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:25:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:25:05,114 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:05,128 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:05,129 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-21 18:25:05,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-21 18:25:05,129 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-21 18:25:05,130 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-09-21 18:25:05,130 INFO L87 Difference]: Start difference. First operand 167 states and 209 transitions. Second operand 12 states. [2018-09-21 18:25:08,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:08,675 INFO L93 Difference]: Finished difference Result 167 states and 207 transitions. [2018-09-21 18:25:08,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:25:08,676 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2018-09-21 18:25:08,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:08,678 INFO L225 Difference]: With dead ends: 167 [2018-09-21 18:25:08,678 INFO L226 Difference]: Without dead ends: 163 [2018-09-21 18:25:08,678 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:25:08,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-09-21 18:25:08,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 161. [2018-09-21 18:25:08,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-09-21 18:25:08,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 200 transitions. [2018-09-21 18:25:08,688 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 200 transitions. Word has length 52 [2018-09-21 18:25:08,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:08,688 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 200 transitions. [2018-09-21 18:25:08,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-21 18:25:08,689 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 200 transitions. [2018-09-21 18:25:08,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-09-21 18:25:08,691 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:25:08,691 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:08,692 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:25:08,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1469397978, now seen corresponding path program 1 times [2018-09-21 18:25:08,693 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:25:08,694 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 18:25:08,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:25:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:25:08,830 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:25:09,007 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 18:25:09,011 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 18:25:09,012 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:09,017 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:09,027 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 18:25:09,028 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:25:09,063 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 18:25:09,067 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 18:25:09,068 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:25:09,080 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:25:09,084 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 18:25:09,085 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:25:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-21 18:25:09,292 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:25:09,307 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:25:09,308 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-21 18:25:09,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-21 18:25:09,308 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-21 18:25:09,309 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-09-21 18:25:09,309 INFO L87 Difference]: Start difference. First operand 161 states and 200 transitions. Second operand 12 states. [2018-09-21 18:25:12,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:25:12,731 INFO L93 Difference]: Finished difference Result 156 states and 194 transitions. [2018-09-21 18:25:12,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:25:12,732 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2018-09-21 18:25:12,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:25:12,733 INFO L225 Difference]: With dead ends: 156 [2018-09-21 18:25:12,734 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:25:12,734 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2018-09-21 18:25:12,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:25:12,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:25:12,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:25:12,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:25:12,735 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2018-09-21 18:25:12,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:25:12,735 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:25:12,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-21 18:25:12,736 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:25:12,736 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:25:12,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:25:12 BoogieIcfgContainer [2018-09-21 18:25:12,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:25:12,741 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:25:12,741 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:25:12,741 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:25:12,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:23:35" (3/4) ... [2018-09-21 18:25:12,745 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:25:12,751 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-21 18:25:12,752 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:25:12,752 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:25:12,752 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_atan2f [2018-09-21 18:25:12,752 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:25:12,752 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-09-21 18:25:12,763 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2018-09-21 18:25:12,764 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-21 18:25:12,765 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 18:25:12,880 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:25:12,881 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:25:12,882 INFO L168 Benchmark]: Toolchain (without parser) took 112465.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.3 MB). Free memory was 954.5 MB in the beginning and 938.2 MB in the end (delta: 16.4 MB). Peak memory consumption was 205.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:12,883 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 18:25:12,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.18 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 933.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:12,885 INFO L168 Benchmark]: Boogie Preprocessor took 75.23 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:25:12,885 INFO L168 Benchmark]: RCFGBuilder took 14147.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -119.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:12,885 INFO L168 Benchmark]: TraceAbstraction took 97565.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 945.9 MB in the end (delta: 106.4 MB). Peak memory consumption was 174.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:12,886 INFO L168 Benchmark]: Witness Printer took 139.92 ms. Allocated memory is still 1.2 GB. Free memory was 945.9 MB in the beginning and 938.2 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:25:12,891 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 527.18 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 933.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.23 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 14147.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -119.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 97565.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 945.9 MB in the end (delta: 106.4 MB). Peak memory consumption was 174.5 MB. Max. memory is 11.5 GB. * Witness Printer took 139.92 ms. Allocated memory is still 1.2 GB. Free memory was 945.9 MB in the beginning and 938.2 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 234]: 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 7 procedures, 166 locations, 1 error locations. SAFE Result, 97.4s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 79.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1131 SDtfs, 1201 SDslu, 7423 SDs, 0 SdLazy, 1031 SolverSat, 52 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 63.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 320 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 30.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 17 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 16.4s InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 283 ConstructedInterpolants, 54 QuantifiedInterpolants, 92776 SizeOfPredicates, 47 NumberOfNonLiveVariables, 752 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 30/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...