/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211a_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_1211a_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 0186804fc9e8cef09b3a1cefd7c260de08abc9c3 --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_1211a_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 0186804fc9e8cef09b3a1cefd7c260de08abc9c3 --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 18:39:27,802 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:39:27,804 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:39:27,828 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:39:27,828 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:39:27,832 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:39:27,834 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:39:27,836 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:39:27,840 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:39:27,850 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:39:27,851 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:39:27,851 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:39:27,854 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:39:27,857 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:39:27,858 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:39:27,859 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:39:27,861 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:39:27,864 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:39:27,866 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:39:27,870 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:39:27,872 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:39:27,873 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:39:27,876 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:39:27,876 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:39:27,876 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:39:27,879 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:39:27,880 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:39:27,881 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:39:27,883 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:39:27,886 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:39:27,886 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:39:27,887 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:39:27,887 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:39:27,887 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:39:27,890 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:39:27,892 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:39:27,892 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:39:27,920 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:39:27,921 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:39:27,922 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:39:27,923 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:39:27,923 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:39:27,924 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:39:27,924 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:39:27,924 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:39:27,924 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:39:27,925 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:39:27,926 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:39:27,926 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:39:27,926 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:39:27,926 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:39:27,926 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:39:27,926 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:39:27,927 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:39:27,927 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:39:27,927 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:39:27,927 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:39:27,929 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:39:27,929 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:39:27,929 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:39:27,929 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:39:27,929 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:39:27,929 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:39:27,930 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:39:27,930 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:39:27,930 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:39:27,930 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 -> 0186804fc9e8cef09b3a1cefd7c260de08abc9c3 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 18:39:28,022 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:39:28,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:39:28,043 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:39:28,044 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:39:28,045 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:39:28,046 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211a_true-unreach-call.c [2018-09-21 18:39:28,431 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c32967751/67b74759b93c433c8efd557cd16b8104/FLAG773357224 [2018-09-21 18:39:28,622 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:39:28,622 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1211a_true-unreach-call.c [2018-09-21 18:39:28,631 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c32967751/67b74759b93c433c8efd557cd16b8104/FLAG773357224 [2018-09-21 18:39:28,648 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c32967751/67b74759b93c433c8efd557cd16b8104 [2018-09-21 18:39:28,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:39:28,656 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:39:28,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:39:28,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:39:28,665 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:39:28,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:39:28" (1/1) ... [2018-09-21 18:39:28,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a304b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:28, skipping insertion in model container [2018-09-21 18:39:28,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:39:28" (1/1) ... [2018-09-21 18:39:28,683 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:39:28,981 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:39:29,025 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:39:29,054 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:39:29,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:29 WrapperNode [2018-09-21 18:39:29,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:39:29,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:39:29,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:39:29,103 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:39:29,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:29" (1/1) ... [2018-09-21 18:39:29,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:29" (1/1) ... [2018-09-21 18:39:29,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:29" (1/1) ... [2018-09-21 18:39:29,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:29" (1/1) ... [2018-09-21 18:39:29,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:29" (1/1) ... [2018-09-21 18:39:29,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:29" (1/1) ... [2018-09-21 18:39:29,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:29" (1/1) ... [2018-09-21 18:39:29,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:39:29,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:39:29,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:39:29,160 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:39:29,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:29" (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 18:39:29,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:39:29,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:39:29,305 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2018-09-21 18:39:29,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:39:29,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:39:29,305 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:39:29,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:39:29,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:39:29,306 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2018-09-21 18:39:29,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:39:29,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:39:29,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:39:29,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:39:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:39:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:39:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:39:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:39:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:39:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:39:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:39:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:39:29,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:39:30,277 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:39:30,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:30 BoogieIcfgContainer [2018-09-21 18:39:30,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:39:30,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:39:30,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:39:30,283 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:39:30,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:39:28" (1/3) ... [2018-09-21 18:39:30,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69120cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:39:30, skipping insertion in model container [2018-09-21 18:39:30,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:29" (2/3) ... [2018-09-21 18:39:30,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69120cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:39:30, skipping insertion in model container [2018-09-21 18:39:30,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:30" (3/3) ... [2018-09-21 18:39:30,288 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211a_true-unreach-call.c [2018-09-21 18:39:30,299 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:39:30,308 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:39:30,353 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:39:30,354 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:39:30,354 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:39:30,354 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:39:30,354 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:39:30,355 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:39:30,355 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:39:30,355 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:39:30,355 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:39:30,377 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2018-09-21 18:39:30,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:39:30,394 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:30,395 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:30,398 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:30,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1897782458, now seen corresponding path program 1 times [2018-09-21 18:39:30,405 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:39:30,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:39:30,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:30,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:30,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:30,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:30,574 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:30,574 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:39:30,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:39:30,596 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:39:30,598 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:39:30,602 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2018-09-21 18:39:30,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:30,631 INFO L93 Difference]: Finished difference Result 138 states and 142 transitions. [2018-09-21 18:39:30,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:39:30,633 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2018-09-21 18:39:30,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:30,648 INFO L225 Difference]: With dead ends: 138 [2018-09-21 18:39:30,648 INFO L226 Difference]: Without dead ends: 132 [2018-09-21 18:39:30,650 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 18:39:30,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-09-21 18:39:30,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-09-21 18:39:30,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-09-21 18:39:30,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 136 transitions. [2018-09-21 18:39:30,702 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 136 transitions. Word has length 31 [2018-09-21 18:39:30,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:30,702 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 136 transitions. [2018-09-21 18:39:30,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:39:30,703 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 136 transitions. [2018-09-21 18:39:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-09-21 18:39:30,706 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:30,707 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:30,707 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:30,707 INFO L82 PathProgramCache]: Analyzing trace with hash 661835315, now seen corresponding path program 1 times [2018-09-21 18:39:30,707 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:39:30,708 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:39:30,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:30,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:30,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:30,836 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:30,836 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:39:30,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:39:30,839 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:39:30,839 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:39:30,840 INFO L87 Difference]: Start difference. First operand 132 states and 136 transitions. Second operand 3 states. [2018-09-21 18:39:30,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:30,895 INFO L93 Difference]: Finished difference Result 133 states and 136 transitions. [2018-09-21 18:39:30,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:39:30,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2018-09-21 18:39:30,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:30,899 INFO L225 Difference]: With dead ends: 133 [2018-09-21 18:39:30,899 INFO L226 Difference]: Without dead ends: 132 [2018-09-21 18:39:30,900 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:39:30,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-09-21 18:39:30,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-09-21 18:39:30,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-09-21 18:39:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 135 transitions. [2018-09-21 18:39:30,914 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 135 transitions. Word has length 57 [2018-09-21 18:39:30,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:30,914 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 135 transitions. [2018-09-21 18:39:30,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:39:30,915 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 135 transitions. [2018-09-21 18:39:30,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-21 18:39:30,918 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:30,918 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:30,919 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:30,919 INFO L82 PathProgramCache]: Analyzing trace with hash 358174954, now seen corresponding path program 1 times [2018-09-21 18:39:30,919 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:39:30,919 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:39:30,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:30,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:30,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:39:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:39:31,058 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:39:31,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:39:31 BoogieIcfgContainer [2018-09-21 18:39:31,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:39:31,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:39:31,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:39:31,123 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:39:31,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:30" (3/4) ... [2018-09-21 18:39:31,129 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:39:31,129 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:39:31,131 INFO L168 Benchmark]: Toolchain (without parser) took 2477.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 951.8 MB in the beginning and 1.0 GB in the end (delta: -95.4 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:31,133 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:39:31,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.67 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:31,134 INFO L168 Benchmark]: Boogie Preprocessor took 56.29 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:31,135 INFO L168 Benchmark]: RCFGBuilder took 1117.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:31,137 INFO L168 Benchmark]: TraceAbstraction took 844.07 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: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:31,138 INFO L168 Benchmark]: Witness Printer took 6.46 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 18:39:31,144 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 445.67 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.29 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1117.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 844.07 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: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.46 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: 110]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 109, overapproximation of someBinaryArithmeticFLOAToperation at line 104, overapproximation of bitwiseAnd at line 93. Possible FailurePath: [L12] static const float one_modf = 1.0; VAL [\old(one_modf)=6442450951, one_modf=1] [L104] float x = 1.0f / 0.0f; VAL [one_modf=1] [L105] FCALL float iptr = __VERIFIER_nondet_float(); VAL [iptr={6442450948:0}, one_modf=1] [L105] FCALL float iptr = __VERIFIER_nondet_float(); VAL [__VERIFIER_nondet_float()=6442450953, iptr={6442450948:0}, one_modf=1] [L106] CALL, EXPR modf_float(x, &iptr) VAL [\old(x)=6442450946, iptr={6442450948:0}, one_modf=1] [L15] __int32_t i0, j0; [L16] __uint32_t i; VAL [\old(x)=6442450946, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L18] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450946, gf_u={6442450949:0}, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L19] FCALL gf_u.value = (x) VAL [\old(x)=6442450946, gf_u={6442450949:0}, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L20] EXPR, FCALL gf_u.word VAL [\old(x)=6442450946, gf_u={6442450949:0}, gf_u.word=2, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L20] (i0) = gf_u.word VAL [\old(x)=6442450946, gf_u={6442450949:0}, gf_u.word=2, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L20] FCALL (i0) = gf_u.word VAL [(i0) = gf_u.word=6442450952, \old(x)=6442450946, gf_u={6442450949:0}, gf_u.word=2, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L21] COND FALSE !(0) VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L22] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L23] COND TRUE j0 < 23 VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, x=6442450946] [L24] COND TRUE j0 < 0 VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, x=6442450946] [L26] FCALL ieee_float_shape_type sf_u; VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, sf_u={6442450949:0}, x=6442450946] [L27] FCALL sf_u.word = (i0 & 0x80000000) VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, sf_u={6442450949:0}, x=6442450946] [L28] EXPR, FCALL sf_u.value VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, sf_u={6442450949:0}, sf_u.value=6442450952, x=6442450946] [L28] FCALL (*iptr) = sf_u.value VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, sf_u={6442450949:0}, sf_u.value=6442450952, x=6442450946] [L29] COND FALSE !(0) VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, x=6442450946] [L30] RET return x; VAL [\old(x)=6442450946, \result=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, x=6442450946] [L106] EXPR modf_float(x, &iptr) VAL [iptr={6442450948:0}, modf_float(x, &iptr)=6442450946, one_modf=1, x=6442450946] [L106] float res = modf_float(x, &iptr); [L109] EXPR, FCALL \read(iptr) VAL [\read(iptr)=6442450952, iptr={6442450948:0}, one_modf=1, res=6442450946, x=6442450946] [L109] CALL, EXPR isinf_float(iptr) VAL [\old(x)=6442450952, one_modf=1] [L87] __int32_t ix; VAL [\old(x)=6442450952, one_modf=1, x=6442450952] [L89] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450952, gf_u={6442450950:0}, one_modf=1, x=6442450952] [L90] FCALL gf_u.value = (x) VAL [\old(x)=6442450952, gf_u={6442450950:0}, one_modf=1, x=6442450952] [L91] EXPR, FCALL gf_u.word VAL [\old(x)=6442450952, gf_u={6442450950:0}, gf_u.word=6442450944, one_modf=1, x=6442450952] [L91] (ix) = gf_u.word VAL [\old(x)=6442450952, gf_u={6442450950:0}, gf_u.word=6442450944, ix=-2147483648, one_modf=1, x=6442450952] [L91] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=6442450947, \old(x)=6442450952, gf_u={6442450950:0}, gf_u.word=6442450944, ix=-2147483648, one_modf=1, x=6442450952] [L92] COND FALSE !(0) VAL [\old(x)=6442450952, ix=-2147483648, one_modf=1, x=6442450952] [L93] ix &= 0x7fffffff [L94] RET return ((ix) == 0x7f800000L); VAL [\old(x)=6442450952, \result=1, ix=2139095040, one_modf=1, x=6442450952] [L109] EXPR isinf_float(iptr) VAL [\read(iptr)=6442450952, iptr={6442450948:0}, isinf_float(iptr)=1, one_modf=1, res=6442450946, x=6442450946] [L109] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) VAL [\read(iptr)=6442450952, iptr={6442450948:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=6442450946, x=6442450946] [L109] COND TRUE isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) [L109] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [\read(iptr)=6442450952, iptr={6442450948:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=6442450946, res == 0.0f && __signbit_float(res) == 0=0, x=6442450946] [L109] COND FALSE, EXPR !(res == 0.0f && __signbit_float(res) == 0) VAL [\read(iptr)=6442450952, iptr={6442450948:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=6442450946, res == 0.0f && __signbit_float(res) == 0=0, x=6442450946] [L109] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) VAL [\read(iptr)=6442450952, iptr={6442450948:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=6442450946, res == 0.0f && __signbit_float(res) == 0=0, x=6442450946] [L109] COND TRUE isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) [L110] __VERIFIER_error() VAL [iptr={6442450948:0}, one_modf=1, res=6442450946, x=6442450946] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 140 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 278 SDtfs, 0 SDslu, 131 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 4092 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:39:33,656 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:39:33,657 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:39:33,677 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:39:33,679 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:39:33,681 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:39:33,682 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:39:33,685 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:39:33,689 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:39:33,690 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:39:33,691 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:39:33,692 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:39:33,695 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:39:33,696 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:39:33,704 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:39:33,704 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:39:33,705 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:39:33,710 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:39:33,714 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:39:33,716 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:39:33,720 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:39:33,722 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:39:33,727 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:39:33,730 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:39:33,731 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:39:33,732 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:39:33,733 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:39:33,734 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:39:33,735 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:39:33,738 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:39:33,739 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:39:33,742 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:39:33,743 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:39:33,743 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:39:33,744 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:39:33,745 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:39:33,745 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:39:33,773 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:39:33,773 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:39:33,775 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:39:33,775 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:39:33,775 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:39:33,776 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:39:33,776 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:39:33,776 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:39:33,776 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:39:33,777 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:39:33,778 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:39:33,778 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:39:33,778 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:39:33,778 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:39:33,778 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:39:33,778 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:39:33,779 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:39:33,779 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:39:33,779 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:39:33,779 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:39:33,780 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:39:33,781 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:39:33,781 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:39:33,781 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:39:33,781 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:39:33,782 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:39:33,782 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:39:33,782 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:39:33,783 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:39:33,783 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:39:33,783 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:39:33,783 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 -> 0186804fc9e8cef09b3a1cefd7c260de08abc9c3 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 18:39:33,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:39:33,866 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:39:33,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:39:33,873 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:39:33,873 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:39:33,874 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211a_true-unreach-call.c [2018-09-21 18:39:34,231 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878dd4acc/8d22edd2ac2f491dbe2ad28e4e49e490/FLAG1f9158b6c [2018-09-21 18:39:34,376 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:39:34,378 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1211a_true-unreach-call.c [2018-09-21 18:39:34,393 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878dd4acc/8d22edd2ac2f491dbe2ad28e4e49e490/FLAG1f9158b6c [2018-09-21 18:39:34,414 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878dd4acc/8d22edd2ac2f491dbe2ad28e4e49e490 [2018-09-21 18:39:34,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:39:34,426 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:39:34,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:39:34,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:39:34,434 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:39:34,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:39:34" (1/1) ... [2018-09-21 18:39:34,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315d9cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:34, skipping insertion in model container [2018-09-21 18:39:34,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:39:34" (1/1) ... [2018-09-21 18:39:34,453 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:39:34,713 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:39:34,743 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:39:34,781 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:39:34,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:34 WrapperNode [2018-09-21 18:39:34,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:39:34,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:39:34,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:39:34,812 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:39:34,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:34" (1/1) ... [2018-09-21 18:39:34,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:34" (1/1) ... [2018-09-21 18:39:34,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:34" (1/1) ... [2018-09-21 18:39:34,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:34" (1/1) ... [2018-09-21 18:39:34,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:34" (1/1) ... [2018-09-21 18:39:34,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:34" (1/1) ... [2018-09-21 18:39:34,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:34" (1/1) ... [2018-09-21 18:39:34,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:39:34,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:39:34,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:39:34,874 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:39:34,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:34" (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 18:39:35,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:39:35,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:39:35,022 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2018-09-21 18:39:35,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:39:35,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:39:35,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:39:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:39:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:39:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2018-09-21 18:39:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:39:35,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:39:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:39:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:39:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:39:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:39:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:39:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:39:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:39:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:39:35,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:39:35,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:39:35,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:39:35,218 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:35,487 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:35,504 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:35,580 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:35,603 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:35,614 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:35,626 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:35,748 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:35,879 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:35,896 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:35,911 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:36,118 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:36,128 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:36,184 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:36,202 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:36,257 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:39:36,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:36 BoogieIcfgContainer [2018-09-21 18:39:36,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:39:36,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:39:36,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:39:36,263 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:39:36,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:39:34" (1/3) ... [2018-09-21 18:39:36,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5402bd81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:39:36, skipping insertion in model container [2018-09-21 18:39:36,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:34" (2/3) ... [2018-09-21 18:39:36,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5402bd81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:39:36, skipping insertion in model container [2018-09-21 18:39:36,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:36" (3/3) ... [2018-09-21 18:39:36,269 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211a_true-unreach-call.c [2018-09-21 18:39:36,279 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:39:36,288 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:39:36,330 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:39:36,330 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:39:36,331 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:39:36,331 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:39:36,331 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:39:36,331 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:39:36,331 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:39:36,331 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:39:36,331 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:39:36,351 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2018-09-21 18:39:36,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:39:36,372 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:36,374 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:36,378 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:36,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1897782458, now seen corresponding path program 1 times [2018-09-21 18:39:36,391 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:36,392 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 18:39:36,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:36,479 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:36,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:36,504 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:36,521 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:36,522 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:39:36,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:39:36,544 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:39:36,545 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:39:36,548 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2018-09-21 18:39:36,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:36,586 INFO L93 Difference]: Finished difference Result 138 states and 142 transitions. [2018-09-21 18:39:36,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:39:36,587 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2018-09-21 18:39:36,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:36,600 INFO L225 Difference]: With dead ends: 138 [2018-09-21 18:39:36,600 INFO L226 Difference]: Without dead ends: 132 [2018-09-21 18:39:36,602 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 18:39:36,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-09-21 18:39:36,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-09-21 18:39:36,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-09-21 18:39:36,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 136 transitions. [2018-09-21 18:39:36,658 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 136 transitions. Word has length 31 [2018-09-21 18:39:36,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:36,659 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 136 transitions. [2018-09-21 18:39:36,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:39:36,659 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 136 transitions. [2018-09-21 18:39:36,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-09-21 18:39:36,663 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:36,663 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:36,664 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:36,664 INFO L82 PathProgramCache]: Analyzing trace with hash 661835315, now seen corresponding path program 1 times [2018-09-21 18:39:36,666 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:36,666 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 18:39:36,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:36,764 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:36,846 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 18:39:36,851 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 18:39:36,851 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:36,879 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:36,942 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 18:39:36,944 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:39:37,081 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 18:39:37,096 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 18:39:37,097 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:37,120 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:37,146 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 18:39:37,146 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:39:37,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:37,587 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:37,604 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:37,604 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:39:37,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:39:37,606 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:39:37,607 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:39:37,607 INFO L87 Difference]: Start difference. First operand 132 states and 136 transitions. Second operand 9 states. [2018-09-21 18:39:39,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:39,728 INFO L93 Difference]: Finished difference Result 136 states and 138 transitions. [2018-09-21 18:39:39,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:39:39,729 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2018-09-21 18:39:39,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:39,731 INFO L225 Difference]: With dead ends: 136 [2018-09-21 18:39:39,731 INFO L226 Difference]: Without dead ends: 87 [2018-09-21 18:39:39,733 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:39:39,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-21 18:39:39,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-09-21 18:39:39,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-21 18:39:39,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2018-09-21 18:39:39,745 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 57 [2018-09-21 18:39:39,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:39,746 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2018-09-21 18:39:39,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:39:39,747 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2018-09-21 18:39:39,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-09-21 18:39:39,749 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:39,749 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:39,750 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:39,750 INFO L82 PathProgramCache]: Analyzing trace with hash 258065525, now seen corresponding path program 1 times [2018-09-21 18:39:39,751 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:39,752 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 18:39:39,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:39,895 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:39,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:39,923 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:39,939 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:39,940 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:39:39,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:39:39,941 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:39:39,941 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:39:39,941 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand 3 states. [2018-09-21 18:39:39,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:39,977 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2018-09-21 18:39:39,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:39:39,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2018-09-21 18:39:39,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:39,979 INFO L225 Difference]: With dead ends: 88 [2018-09-21 18:39:39,979 INFO L226 Difference]: Without dead ends: 87 [2018-09-21 18:39:39,980 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:39:39,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-21 18:39:39,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-09-21 18:39:39,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-21 18:39:39,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2018-09-21 18:39:39,987 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 68 [2018-09-21 18:39:39,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:39,988 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2018-09-21 18:39:39,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:39:39,989 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2018-09-21 18:39:39,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-21 18:39:39,991 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:39,991 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:39,991 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:39,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1117536596, now seen corresponding path program 1 times [2018-09-21 18:39:39,992 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:39,992 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 18:39:39,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:40,158 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:40,203 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 18:39:40,206 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 18:39:40,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:40,212 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:40,221 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 18:39:40,221 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:39:40,242 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 18:39:40,247 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 18:39:40,247 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:40,254 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:40,260 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 18:39:40,260 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:39:40,317 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 13 treesize of output 10 [2018-09-21 18:39:40,338 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 10 treesize of output 9 [2018-09-21 18:39:40,339 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:40,365 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:40,381 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:39:40,381 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:39:40,427 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 31 treesize of output 23 [2018-09-21 18:39:40,435 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 23 treesize of output 15 [2018-09-21 18:39:40,436 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:40,440 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:40,450 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:39:40,450 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-21 18:39:40,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:40,862 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:40,873 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:40,873 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-21 18:39:40,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-21 18:39:40,874 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-21 18:39:40,874 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:39:40,874 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand 14 states. [2018-09-21 18:39:43,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:43,181 INFO L93 Difference]: Finished difference Result 87 states and 86 transitions. [2018-09-21 18:39:43,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-21 18:39:43,182 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 70 [2018-09-21 18:39:43,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:43,184 INFO L225 Difference]: With dead ends: 87 [2018-09-21 18:39:43,184 INFO L226 Difference]: Without dead ends: 87 [2018-09-21 18:39:43,185 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=107, Invalid=649, Unknown=0, NotChecked=0, Total=756 [2018-09-21 18:39:43,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-21 18:39:43,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-09-21 18:39:43,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-21 18:39:43,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 86 transitions. [2018-09-21 18:39:43,193 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 86 transitions. Word has length 70 [2018-09-21 18:39:43,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:43,194 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 86 transitions. [2018-09-21 18:39:43,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-21 18:39:43,194 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 86 transitions. [2018-09-21 18:39:43,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-09-21 18:39:43,196 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:43,197 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:43,197 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:43,197 INFO L82 PathProgramCache]: Analyzing trace with hash -422775755, now seen corresponding path program 1 times [2018-09-21 18:39:43,198 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:43,198 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 18:39:43,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:43,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:43,409 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 18:39:43,415 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 18:39:43,415 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:43,422 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:43,434 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 18:39:43,435 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:39:43,464 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 18:39:43,468 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 18:39:43,469 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:43,472 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:43,479 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 18:39:43,479 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:39:43,522 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 13 treesize of output 10 [2018-09-21 18:39:43,527 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 10 treesize of output 9 [2018-09-21 18:39:43,527 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:43,532 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:43,545 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:39:43,545 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:39:43,589 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 31 treesize of output 23 [2018-09-21 18:39:43,618 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 23 treesize of output 15 [2018-09-21 18:39:43,633 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:43,658 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:43,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:39:43,683 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-21 18:39:44,456 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 18:39:44,474 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 18:39:44,475 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,500 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,574 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 18:39:44,574 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:39:44,944 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 18:39:44,964 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 18:39:44,965 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,989 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:45,001 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 18:39:45,001 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:39:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:45,445 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:45,461 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:45,461 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-09-21 18:39:45,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-21 18:39:45,462 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-21 18:39:45,465 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:39:45,465 INFO L87 Difference]: Start difference. First operand 87 states and 86 transitions. Second operand 21 states. [2018-09-21 18:39:49,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:49,597 INFO L93 Difference]: Finished difference Result 85 states and 84 transitions. [2018-09-21 18:39:49,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-21 18:39:49,597 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 86 [2018-09-21 18:39:49,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:49,598 INFO L225 Difference]: With dead ends: 85 [2018-09-21 18:39:49,598 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:39:49,601 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=175, Invalid=1631, Unknown=0, NotChecked=0, Total=1806 [2018-09-21 18:39:49,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:39:49,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:39:49,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:39:49,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:39:49,601 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2018-09-21 18:39:49,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:49,602 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:39:49,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-21 18:39:49,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:39:49,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:39:49,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:39:49 BoogieIcfgContainer [2018-09-21 18:39:49,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:39:49,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:39:49,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:39:49,608 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:39:49,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:36" (3/4) ... [2018-09-21 18:39:49,611 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:39:49,618 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:39:49,618 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-21 18:39:49,619 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:39:49,619 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure modf_float [2018-09-21 18:39:49,619 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-21 18:39:49,627 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-09-21 18:39:49,628 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-09-21 18:39:49,628 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:39:49,707 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:39:49,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:39:49,708 INFO L168 Benchmark]: Toolchain (without parser) took 15285.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.8 MB). Free memory was 951.8 MB in the beginning and 979.1 MB in the end (delta: -27.2 MB). Peak memory consumption was 183.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:49,710 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:39:49,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:49,711 INFO L168 Benchmark]: Boogie Preprocessor took 61.51 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:39:49,712 INFO L168 Benchmark]: RCFGBuilder took 1384.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:49,713 INFO L168 Benchmark]: TraceAbstraction took 13348.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 986.5 MB in the end (delta: 122.5 MB). Peak memory consumption was 179.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:49,713 INFO L168 Benchmark]: Witness Printer took 99.59 ms. Allocated memory is still 1.2 GB. Free memory was 986.5 MB in the beginning and 979.1 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:49,717 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 384.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.51 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1384.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13348.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 986.5 MB in the end (delta: 122.5 MB). Peak memory consumption was 179.7 MB. Max. memory is 11.5 GB. * Witness Printer took 99.59 ms. Allocated memory is still 1.2 GB. Free memory was 986.5 MB in the beginning and 979.1 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 110]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 140 locations, 1 error locations. SAFE Result, 13.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 8.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 478 SDtfs, 351 SDslu, 2416 SDs, 0 SdLazy, 788 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 352 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 307 ConstructedInterpolants, 48 QuantifiedInterpolants, 145353 SizeOfPredicates, 42 NumberOfNonLiveVariables, 617 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...