./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e 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 /storage/repos/svcomp/c/float-benchs/nan_float_range_true-unreach-call_true-termination.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 64c6d061d6a52be18c2dbf1f223acaf24ab6149e .................................................................................................................................................................................................................................. 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 /storage/repos/svcomp/c/float-benchs/nan_float_range_true-unreach-call_true-termination.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 64c6d061d6a52be18c2dbf1f223acaf24ab6149e ............................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:43:58,927 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:43:58,929 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:43:58,942 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:43:58,942 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:43:58,943 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:43:58,945 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:43:58,947 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:43:58,949 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:43:58,950 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:43:58,951 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:43:58,951 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:43:58,952 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:43:58,954 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:43:58,955 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:43:58,956 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:43:58,957 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:43:58,959 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:43:58,962 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:43:58,964 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:43:58,965 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:43:58,966 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:43:58,969 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:43:58,970 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:43:58,970 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:43:58,971 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:43:58,973 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:43:58,974 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:43:58,975 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:43:58,976 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:43:58,977 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:43:58,978 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:43:58,978 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:43:58,978 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:43:58,980 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:43:58,981 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:43:58,982 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:43:58,998 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:43:58,998 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:43:58,999 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:43:58,999 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:43:59,000 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:43:59,001 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:43:59,001 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:43:59,001 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:43:59,001 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:43:59,002 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:43:59,002 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:43:59,002 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:43:59,003 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:43:59,003 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:43:59,003 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:43:59,003 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:43:59,003 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:43:59,004 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:43:59,004 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:43:59,004 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:43:59,004 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:43:59,004 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:43:59,006 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:43:59,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:43:59,006 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:43:59,007 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:43:59,007 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:43:59,007 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:43:59,007 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:43:59,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:43:59,008 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 -> 64c6d061d6a52be18c2dbf1f223acaf24ab6149e [2018-11-28 17:43:59,045 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:43:59,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:43:59,063 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:43:59,065 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:43:59,065 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:43:59,066 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-11-28 17:43:59,123 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20702bd5a/7f13a20e6d3243df80ec77b51c44f784/FLAGd76967000 [2018-11-28 17:43:59,549 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:43:59,550 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-11-28 17:43:59,557 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20702bd5a/7f13a20e6d3243df80ec77b51c44f784/FLAGd76967000 [2018-11-28 17:43:59,912 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20702bd5a/7f13a20e6d3243df80ec77b51c44f784 [2018-11-28 17:43:59,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:43:59,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:43:59,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:43:59,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:43:59,922 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:43:59,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:43:59" (1/1) ... [2018-11-28 17:43:59,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c146171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:43:59, skipping insertion in model container [2018-11-28 17:43:59,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:43:59" (1/1) ... [2018-11-28 17:43:59,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:43:59,962 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:44:00,144 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:44:00,149 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:44:00,166 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:44:00,182 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:44:00,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:00 WrapperNode [2018-11-28 17:44:00,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:44:00,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:44:00,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:44:00,184 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:44:00,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:00" (1/1) ... [2018-11-28 17:44:00,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:00" (1/1) ... [2018-11-28 17:44:00,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:44:00,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:44:00,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:44:00,211 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:44:00,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:00" (1/1) ... [2018-11-28 17:44:00,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:00" (1/1) ... [2018-11-28 17:44:00,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:00" (1/1) ... [2018-11-28 17:44:00,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:00" (1/1) ... [2018-11-28 17:44:00,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:00" (1/1) ... [2018-11-28 17:44:00,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:00" (1/1) ... [2018-11-28 17:44:00,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:00" (1/1) ... [2018-11-28 17:44:00,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:44:00,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:44:00,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:44:00,237 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:44:00,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:00" (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 [2018-11-28 17:44:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:44:00,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:44:00,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:44:00,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:44:00,406 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:44:00,406 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:44:00,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:44:00,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:44:00,654 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:44:00,654 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:44:00,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:44:00 BoogieIcfgContainer [2018-11-28 17:44:00,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:44:00,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:44:00,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:44:00,660 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:44:00,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:43:59" (1/3) ... [2018-11-28 17:44:00,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f99b565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:44:00, skipping insertion in model container [2018-11-28 17:44:00,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:00" (2/3) ... [2018-11-28 17:44:00,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f99b565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:44:00, skipping insertion in model container [2018-11-28 17:44:00,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:44:00" (3/3) ... [2018-11-28 17:44:00,664 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_range_true-unreach-call_true-termination.c [2018-11-28 17:44:00,672 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:44:00,679 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:44:00,695 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:44:00,726 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:44:00,726 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:44:00,726 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:44:00,727 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:44:00,727 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:44:00,727 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:44:00,727 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:44:00,727 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:44:00,727 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:44:00,747 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-28 17:44:00,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 17:44:00,755 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:44:00,756 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:44:00,759 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:44:00,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:44:00,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-28 17:44:00,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:44:00,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:44:00,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:44:00,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:44:00,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:44:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:44:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:44:00,873 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:44:00,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:44:00 BoogieIcfgContainer [2018-11-28 17:44:00,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:44:00,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:44:00,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:44:00,900 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:44:00,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:44:00" (3/4) ... [2018-11-28 17:44:00,903 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:44:00,904 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:44:00,904 INFO L168 Benchmark]: Toolchain (without parser) took 988.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:44:00,907 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:44:00,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.29 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:44:00,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.81 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:44:00,909 INFO L168 Benchmark]: Boogie Preprocessor took 25.99 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:44:00,910 INFO L168 Benchmark]: RCFGBuilder took 417.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:44:00,911 INFO L168 Benchmark]: TraceAbstraction took 243.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:44:00,913 INFO L168 Benchmark]: Witness Printer took 4.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:44:00,918 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.29 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.81 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.99 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 417.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 243.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 13, overapproximation of someBinaryFLOATComparisonOperation at line 14. Possible FailurePath: [L10] float x; [L11] x = __VERIFIER_nondet_float() [L13] COND TRUE x >= -1e10 && x <= 1e10 VAL [x=2] [L14] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 0.1.24-91b1670 [2018-11-28 17:44:03,300 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:44:03,302 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:44:03,316 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:44:03,317 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:44:03,318 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:44:03,320 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:44:03,321 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:44:03,325 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:44:03,326 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:44:03,327 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:44:03,327 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:44:03,328 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:44:03,333 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:44:03,334 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:44:03,335 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:44:03,337 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:44:03,342 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:44:03,345 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:44:03,350 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:44:03,352 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:44:03,356 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:44:03,361 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:44:03,361 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:44:03,361 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:44:03,362 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:44:03,366 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:44:03,366 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:44:03,368 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:44:03,369 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:44:03,369 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:44:03,370 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:44:03,370 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:44:03,370 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:44:03,371 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:44:03,375 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:44:03,375 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:44:03,393 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:44:03,393 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:44:03,397 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:44:03,398 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:44:03,398 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:44:03,398 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:44:03,399 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:44:03,399 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:44:03,399 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:44:03,399 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:44:03,399 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:44:03,402 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:44:03,402 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:44:03,402 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:44:03,402 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:44:03,402 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:44:03,403 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:44:03,403 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:44:03,403 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:44:03,403 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:44:03,403 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:44:03,404 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:44:03,404 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:44:03,404 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:44:03,404 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:44:03,404 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:44:03,404 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:44:03,408 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:44:03,408 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:44:03,408 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:44:03,408 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:44:03,409 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:44:03,409 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 -> 64c6d061d6a52be18c2dbf1f223acaf24ab6149e [2018-11-28 17:44:03,466 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:44:03,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:44:03,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:44:03,488 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:44:03,489 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:44:03,490 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-11-28 17:44:03,548 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb7e3ac13/c3e807dd80f4445d85c3f36c677f0c51/FLAG21a6bd8f7 [2018-11-28 17:44:03,969 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:44:03,970 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-11-28 17:44:03,977 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb7e3ac13/c3e807dd80f4445d85c3f36c677f0c51/FLAG21a6bd8f7 [2018-11-28 17:44:04,332 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb7e3ac13/c3e807dd80f4445d85c3f36c677f0c51 [2018-11-28 17:44:04,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:44:04,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:44:04,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:44:04,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:44:04,343 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:44:04,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:44:04" (1/1) ... [2018-11-28 17:44:04,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a47e369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04, skipping insertion in model container [2018-11-28 17:44:04,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:44:04" (1/1) ... [2018-11-28 17:44:04,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:44:04,375 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:44:04,589 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:44:04,596 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:44:04,613 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:44:04,632 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:44:04,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04 WrapperNode [2018-11-28 17:44:04,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:44:04,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:44:04,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:44:04,634 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:44:04,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04" (1/1) ... [2018-11-28 17:44:04,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04" (1/1) ... [2018-11-28 17:44:04,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:44:04,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:44:04,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:44:04,658 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:44:04,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04" (1/1) ... [2018-11-28 17:44:04,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04" (1/1) ... [2018-11-28 17:44:04,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04" (1/1) ... [2018-11-28 17:44:04,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04" (1/1) ... [2018-11-28 17:44:04,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04" (1/1) ... [2018-11-28 17:44:04,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04" (1/1) ... [2018-11-28 17:44:04,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04" (1/1) ... [2018-11-28 17:44:04,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:44:04,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:44:04,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:44:04,684 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:44:04,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04" (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 [2018-11-28 17:44:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:44:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:44:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:44:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:44:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:44:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:44:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:44:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:44:05,222 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:44:05,223 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:44:05,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:44:05 BoogieIcfgContainer [2018-11-28 17:44:05,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:44:05,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:44:05,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:44:05,228 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:44:05,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:44:04" (1/3) ... [2018-11-28 17:44:05,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3863386c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:44:05, skipping insertion in model container [2018-11-28 17:44:05,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:44:04" (2/3) ... [2018-11-28 17:44:05,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3863386c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:44:05, skipping insertion in model container [2018-11-28 17:44:05,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:44:05" (3/3) ... [2018-11-28 17:44:05,231 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_range_true-unreach-call_true-termination.c [2018-11-28 17:44:05,241 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:44:05,247 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:44:05,262 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:44:05,297 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:44:05,298 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:44:05,298 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:44:05,298 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:44:05,299 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:44:05,299 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:44:05,299 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:44:05,299 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:44:05,299 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:44:05,326 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-28 17:44:05,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 17:44:05,335 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:44:05,337 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:44:05,339 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:44:05,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:44:05,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-28 17:44:05,351 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:44:05,352 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 [2018-11-28 17:44:05,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:44:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:44:05,403 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:44:05,688 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-28 17:44:06,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:44:06,262 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:44:06,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:44:06,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 17:44:06,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 17:44:06,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 17:44:06,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 17:44:06,294 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2018-11-28 17:44:07,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:44:07,014 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-11-28 17:44:07,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 17:44:07,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-28 17:44:07,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:44:07,033 INFO L225 Difference]: With dead ends: 28 [2018-11-28 17:44:07,033 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:44:07,037 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 17:44:07,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:44:07,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:44:07,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:44:07,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:44:07,067 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-28 17:44:07,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:44:07,067 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:44:07,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 17:44:07,068 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:44:07,068 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:44:07,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:44:07,315 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-28 17:44:07,318 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 17:44:07,318 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:44:07,318 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:44:07,318 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:44:07,318 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:44:07,318 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:44:07,319 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven main_~x~0) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 10000000000.0))) [2018-11-28 17:44:07,319 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 8 17) the Hoare annotation is: true [2018-11-28 17:44:07,319 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2018-11-28 17:44:07,319 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 17) no Hoare annotation was computed. [2018-11-28 17:44:07,319 INFO L448 ceAbstractionStarter]: For program point L13-1(lines 13 15) no Hoare annotation was computed. [2018-11-28 17:44:07,320 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 17) no Hoare annotation was computed. [2018-11-28 17:44:07,320 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 6) the Hoare annotation is: true [2018-11-28 17:44:07,320 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-11-28 17:44:07,320 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 6) no Hoare annotation was computed. [2018-11-28 17:44:07,320 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-11-28 17:44:07,320 INFO L448 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2018-11-28 17:44:07,320 INFO L448 ceAbstractionStarter]: For program point L6-3(line 6) no Hoare annotation was computed. [2018-11-28 17:44:07,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:44:07 BoogieIcfgContainer [2018-11-28 17:44:07,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:44:07,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:44:07,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:44:07,325 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:44:07,325 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:44:05" (3/4) ... [2018-11-28 17:44:07,329 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:44:07,337 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:44:07,337 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:44:07,338 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 17:44:07,342 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 17:44:07,342 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 17:44:07,342 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:44:07,385 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:44:07,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:44:07,386 INFO L168 Benchmark]: Toolchain (without parser) took 3049.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -111.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:44:07,388 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:44:07,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.81 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:44:07,389 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.95 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:44:07,390 INFO L168 Benchmark]: Boogie Preprocessor took 25.79 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:44:07,390 INFO L168 Benchmark]: RCFGBuilder took 539.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:44:07,391 INFO L168 Benchmark]: TraceAbstraction took 2099.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:44:07,392 INFO L168 Benchmark]: Witness Printer took 61.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:44:07,396 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.81 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.95 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.79 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 539.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2099.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * Witness Printer took 61.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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 4 procedures, 18 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 7 SDslu, 40 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 13 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 2 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...