./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0621a.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c46c21346fa3a14a7874ed8ff9a4a0a79ae6f208 .................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0621a.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c46c21346fa3a14a7874ed8ff9a4a0a79ae6f208 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:19:31,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:19:31,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:19:31,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:19:31,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:19:31,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:19:31,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:19:31,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:19:31,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:19:31,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:19:31,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:19:31,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:19:31,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:19:31,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:19:31,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:19:31,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:19:31,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:19:31,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:19:31,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:19:31,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:19:31,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:19:31,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:19:31,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:19:31,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:19:31,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:19:31,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:19:31,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:19:31,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:19:31,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:19:31,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:19:31,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:19:31,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:19:31,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:19:31,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:19:31,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:19:31,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:19:31,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:19:31,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:19:31,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:19:31,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:19:31,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:19:31,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:19:31,966 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:19:31,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:19:31,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:19:31,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:19:31,969 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:19:31,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:19:31,970 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:19:31,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:19:31,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:19:31,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:19:31,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:19:31,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:19:31,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:19:31,972 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:19:31,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:19:31,973 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:19:31,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:19:31,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:19:31,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:19:31,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:19:31,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:19:31,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:19:31,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:19:31,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:19:31,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:19:31,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:19:31,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:19:31,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:19:31,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:19:31,978 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46c21346fa3a14a7874ed8ff9a4a0a79ae6f208 [2020-10-24 23:19:32,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:19:32,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:19:32,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:19:32,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:19:32,435 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:19:32,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2020-10-24 23:19:32,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4049a7528/87be0e8d8def4232a5e79238bb1c8717/FLAG470c06958 [2020-10-24 23:19:33,185 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:19:33,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2020-10-24 23:19:33,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4049a7528/87be0e8d8def4232a5e79238bb1c8717/FLAG470c06958 [2020-10-24 23:19:33,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4049a7528/87be0e8d8def4232a5e79238bb1c8717 [2020-10-24 23:19:33,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:19:33,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:19:33,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:19:33,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:19:33,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:19:33,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:19:33" (1/1) ... [2020-10-24 23:19:33,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727653fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33, skipping insertion in model container [2020-10-24 23:19:33,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:19:33" (1/1) ... [2020-10-24 23:19:33,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:19:33,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:19:33,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:19:33,843 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:19:33,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:19:33,921 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:19:33,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33 WrapperNode [2020-10-24 23:19:33,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:19:33,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:19:33,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:19:33,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:19:33,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33" (1/1) ... [2020-10-24 23:19:33,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33" (1/1) ... [2020-10-24 23:19:33,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:19:33,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:19:33,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:19:33,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:19:33,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33" (1/1) ... [2020-10-24 23:19:33,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33" (1/1) ... [2020-10-24 23:19:34,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33" (1/1) ... [2020-10-24 23:19:34,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33" (1/1) ... [2020-10-24 23:19:34,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33" (1/1) ... [2020-10-24 23:19:34,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33" (1/1) ... [2020-10-24 23:19:34,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33" (1/1) ... [2020-10-24 23:19:34,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:19:34,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:19:34,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:19:34,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:19:34,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33" (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 [2020-10-24 23:19:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:19:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:19:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:19:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:19:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:19:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:19:34,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:19:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:19:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 23:19:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:19:34,682 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:19:34,682 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:19:34,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:34 BoogieIcfgContainer [2020-10-24 23:19:34,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:19:34,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:19:34,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:19:34,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:19:34,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:19:33" (1/3) ... [2020-10-24 23:19:34,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f35053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:19:34, skipping insertion in model container [2020-10-24 23:19:34,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:33" (2/3) ... [2020-10-24 23:19:34,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f35053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:19:34, skipping insertion in model container [2020-10-24 23:19:34,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:34" (3/3) ... [2020-10-24 23:19:34,693 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621a.c [2020-10-24 23:19:34,706 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:19:34,712 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:19:34,727 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:19:34,758 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:19:34,758 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:19:34,758 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:19:34,758 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:19:34,758 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:19:34,758 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:19:34,758 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:19:34,759 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:19:34,775 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-24 23:19:34,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:19:34,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:34,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:34,782 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:34,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:34,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1906423550, now seen corresponding path program 1 times [2020-10-24 23:19:34,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:19:34,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131639410] [2020-10-24 23:19:34,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:19:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:19:35,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:35,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131639410] [2020-10-24 23:19:35,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:19:35,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:19:35,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885125988] [2020-10-24 23:19:35,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:19:35,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:19:35,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:19:35,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:19:35,040 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-10-24 23:19:35,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:19:35,061 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2020-10-24 23:19:35,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:19:35,062 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 23:19:35,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:19:35,074 INFO L225 Difference]: With dead ends: 63 [2020-10-24 23:19:35,074 INFO L226 Difference]: Without dead ends: 29 [2020-10-24 23:19:35,078 INFO L677 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 [2020-10-24 23:19:35,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-24 23:19:35,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-24 23:19:35,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-24 23:19:35,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-10-24 23:19:35,120 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 9 [2020-10-24 23:19:35,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:19:35,121 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-10-24 23:19:35,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:19:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-10-24 23:19:35,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:19:35,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:35,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:35,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:19:35,122 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:35,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:35,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1481927263, now seen corresponding path program 1 times [2020-10-24 23:19:35,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:19:35,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514932715] [2020-10-24 23:19:35,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:19:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:19:35,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:19:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:19:35,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:19:35,337 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:19:35,337 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:19:35,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:19:35,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:19:35 BoogieIcfgContainer [2020-10-24 23:19:35,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:19:35,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:19:35,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:19:35,421 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:19:35,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:34" (3/4) ... [2020-10-24 23:19:35,425 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:19:35,426 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:19:35,431 INFO L168 Benchmark]: Toolchain (without parser) took 1899.60 ms. Allocated memory was 37.7 MB in the beginning and 56.6 MB in the end (delta: 18.9 MB). Free memory was 14.7 MB in the beginning and 30.2 MB in the end (delta: -15.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:35,432 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 37.7 MB. Free memory was 22.4 MB in the beginning and 22.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:19:35,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.84 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 22.9 MB in the beginning and 29.0 MB in the end (delta: -6.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:35,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.54 ms. Allocated memory is still 46.1 MB. Free memory was 28.8 MB in the beginning and 26.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:35,438 INFO L168 Benchmark]: Boogie Preprocessor took 71.15 ms. Allocated memory is still 46.1 MB. Free memory was 26.7 MB in the beginning and 24.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:35,440 INFO L168 Benchmark]: RCFGBuilder took 632.47 ms. Allocated memory is still 46.1 MB. Free memory was 24.9 MB in the beginning and 26.4 MB in the end (delta: -1.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:35,441 INFO L168 Benchmark]: TraceAbstraction took 734.04 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 25.9 MB in the beginning and 30.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:35,444 INFO L168 Benchmark]: Witness Printer took 5.27 ms. Allocated memory is still 56.6 MB. Free memory was 30.5 MB in the beginning and 30.2 MB in the end (delta: 364.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:19:35,460 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 37.7 MB. Free memory was 22.4 MB in the beginning and 22.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 370.84 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 22.9 MB in the beginning and 29.0 MB in the end (delta: -6.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.54 ms. Allocated memory is still 46.1 MB. Free memory was 28.8 MB in the beginning and 26.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.15 ms. Allocated memory is still 46.1 MB. Free memory was 26.7 MB in the beginning and 24.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 632.47 ms. Allocated memory is still 46.1 MB. Free memory was 24.9 MB in the beginning and 26.4 MB in the end (delta: -1.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 734.04 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 25.9 MB in the beginning and 30.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.27 ms. Allocated memory is still 56.6 MB. Free memory was 30.5 MB in the beginning and 30.2 MB in the end (delta: 364.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 132, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 67, overapproximation of someBinaryArithmeticFLOAToperation at line 70. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L129] float x = 1.0f / 0.0f; [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L68] COND TRUE ix >= 0x50800000 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L69] COND TRUE ((ix) > 0x7f800000L) [L70] return x + x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L130] float res = atan_float(x); [L132] COND TRUE res != pi_o_2 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L3] __assert_fail("0", "float_req_bl_0621a.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: 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 0.2.0-a4ecdab [2020-10-24 23:19:37,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:19:37,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:19:38,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:19:38,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:19:38,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:19:38,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:19:38,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:19:38,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:19:38,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:19:38,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:19:38,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:19:38,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:19:38,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:19:38,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:19:38,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:19:38,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:19:38,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:19:38,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:19:38,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:19:38,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:19:38,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:19:38,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:19:38,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:19:38,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:19:38,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:19:38,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:19:38,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:19:38,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:19:38,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:19:38,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:19:38,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:19:38,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:19:38,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:19:38,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:19:38,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:19:38,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:19:38,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:19:38,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:19:38,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:19:38,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:19:38,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:19:38,134 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:19:38,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:19:38,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:19:38,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:19:38,137 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:19:38,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:19:38,137 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:19:38,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:19:38,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:19:38,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:19:38,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:19:38,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:19:38,138 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:19:38,138 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:19:38,138 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:19:38,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:19:38,139 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:19:38,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:19:38,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:19:38,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:19:38,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:19:38,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:19:38,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:19:38,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:19:38,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:19:38,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:19:38,141 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:19:38,141 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:19:38,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:19:38,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:19:38,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:19:38,142 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46c21346fa3a14a7874ed8ff9a4a0a79ae6f208 [2020-10-24 23:19:38,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:19:38,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:19:38,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:19:38,665 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:19:38,666 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:19:38,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2020-10-24 23:19:38,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/128750f81/7341aa7a52c849c995461a96345c99ec/FLAG8a334625e [2020-10-24 23:19:39,404 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:19:39,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2020-10-24 23:19:39,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/128750f81/7341aa7a52c849c995461a96345c99ec/FLAG8a334625e [2020-10-24 23:19:39,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/128750f81/7341aa7a52c849c995461a96345c99ec [2020-10-24 23:19:39,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:19:39,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:19:39,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:19:39,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:19:39,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:19:39,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:19:39" (1/1) ... [2020-10-24 23:19:39,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41347f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:39, skipping insertion in model container [2020-10-24 23:19:39,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:19:39" (1/1) ... [2020-10-24 23:19:39,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:19:39,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:19:40,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:19:40,139 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:19:40,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:19:40,292 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:19:40,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:40 WrapperNode [2020-10-24 23:19:40,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:19:40,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:19:40,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:19:40,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:19:40,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:40" (1/1) ... [2020-10-24 23:19:40,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:40" (1/1) ... [2020-10-24 23:19:40,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:19:40,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:19:40,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:19:40,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:19:40,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:40" (1/1) ... [2020-10-24 23:19:40,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:40" (1/1) ... [2020-10-24 23:19:40,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:40" (1/1) ... [2020-10-24 23:19:40,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:40" (1/1) ... [2020-10-24 23:19:40,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:40" (1/1) ... [2020-10-24 23:19:40,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:40" (1/1) ... [2020-10-24 23:19:40,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:40" (1/1) ... [2020-10-24 23:19:40,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:19:40,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:19:40,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:19:40,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:19:40,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:40" (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 [2020-10-24 23:19:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-10-24 23:19:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:19:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:19:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:19:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:19:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:19:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:19:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:19:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:19:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:19:48,477 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:19:48,478 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:19:48,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:48 BoogieIcfgContainer [2020-10-24 23:19:48,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:19:48,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:19:48,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:19:48,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:19:48,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:19:39" (1/3) ... [2020-10-24 23:19:48,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d52e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:19:48, skipping insertion in model container [2020-10-24 23:19:48,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:40" (2/3) ... [2020-10-24 23:19:48,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d52e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:19:48, skipping insertion in model container [2020-10-24 23:19:48,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:48" (3/3) ... [2020-10-24 23:19:48,489 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621a.c [2020-10-24 23:19:48,501 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:19:48,510 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:19:48,523 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:19:48,553 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:19:48,553 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:19:48,553 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:19:48,553 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:19:48,554 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:19:48,554 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:19:48,554 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:19:48,554 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:19:48,566 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-24 23:19:48,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:19:48,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:48,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:48,572 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:48,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:48,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1906423550, now seen corresponding path program 1 times [2020-10-24 23:19:48,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:19:48,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119556584] [2020-10-24 23:19:48,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-24 23:19:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:19:49,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:19:49,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:19:49,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:49,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:19:49,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:49,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119556584] [2020-10-24 23:19:49,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:19:49,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:19:49,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105216033] [2020-10-24 23:19:49,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:19:49,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:19:49,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:19:49,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:19:49,556 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-10-24 23:19:49,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:19:49,575 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2020-10-24 23:19:49,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:19:49,577 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 23:19:49,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:19:49,587 INFO L225 Difference]: With dead ends: 63 [2020-10-24 23:19:49,588 INFO L226 Difference]: Without dead ends: 29 [2020-10-24 23:19:49,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:19:49,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-24 23:19:49,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-24 23:19:49,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-24 23:19:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-10-24 23:19:49,630 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 9 [2020-10-24 23:19:49,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:19:49,630 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-10-24 23:19:49,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:19:49,631 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-10-24 23:19:49,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:19:49,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:49,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:49,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:19:49,845 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:49,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:49,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1481927263, now seen corresponding path program 1 times [2020-10-24 23:19:49,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:19:49,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313020873] [2020-10-24 23:19:49,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-24 23:19:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:19:50,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:19:50,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:19:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:50,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:19:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:51,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313020873] [2020-10-24 23:19:51,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:19:51,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:19:51,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306478594] [2020-10-24 23:19:51,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:19:51,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:19:51,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:19:51,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:19:51,048 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand 8 states. [2020-10-24 23:19:51,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:19:51,313 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2020-10-24 23:19:51,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:19:51,318 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-10-24 23:19:51,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:19:51,319 INFO L225 Difference]: With dead ends: 33 [2020-10-24 23:19:51,319 INFO L226 Difference]: Without dead ends: 12 [2020-10-24 23:19:51,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:19:51,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-24 23:19:51,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-24 23:19:51,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-24 23:19:51,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-10-24 23:19:51,324 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-10-24 23:19:51,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:19:51,325 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-10-24 23:19:51,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:19:51,325 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-10-24 23:19:51,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:19:51,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:51,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:51,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:19:51,539 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:51,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:51,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1305404355, now seen corresponding path program 1 times [2020-10-24 23:19:51,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:19:51,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773163038] [2020-10-24 23:19:51,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-24 23:19:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:19:52,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-24 23:19:52,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:19:52,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:19:52,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:19:53,296 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 39 [2020-10-24 23:19:53,298 INFO L350 Elim1Store]: treesize reduction 339, result has 16.7 percent of original size [2020-10-24 23:19:53,299 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 738 treesize of output 752 [2020-10-24 23:19:53,305 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-10-24 23:19:53,305 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,309 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 6, 2, 2, 2, 5, 2, 3, 2, 2, 2, 3, 2, 3, 2, 3, 2, 2, 1] term [2020-10-24 23:19:53,309 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,322 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 2, 2, 3, 2, 3, 2, 3, 2, 2, 1] term [2020-10-24 23:19:53,323 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,325 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 2, 2, 3, 2, 3, 2, 3, 2, 2, 1] term [2020-10-24 23:19:53,325 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,327 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 3, 2, 3, 2, 2, 1] term [2020-10-24 23:19:53,328 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,329 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 1] term [2020-10-24 23:19:53,329 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,331 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-10-24 23:19:53,331 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,332 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-10-24 23:19:53,333 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,335 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 3, 2, 2, 1] term [2020-10-24 23:19:53,336 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,337 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 3, 2, 2, 1] term [2020-10-24 23:19:53,337 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,339 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 2, 2, 1] term [2020-10-24 23:19:53,339 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,340 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-10-24 23:19:53,341 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,342 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 5, 1] term [2020-10-24 23:19:53,342 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:53,347 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-24 23:19:54,327 WARN L193 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 110 [2020-10-24 23:19:54,330 INFO L625 ElimStorePlain]: treesize reduction 2434, result has 8.3 percent of original size [2020-10-24 23:19:54,374 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,391 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,397 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,406 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,417 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,424 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,434 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,439 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,445 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-24 23:19:54,445 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:200, output treesize:219 [2020-10-24 23:19:54,457 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,463 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,469 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,475 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,482 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,485 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,490 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,494 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,663 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-24 23:19:54,691 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,697 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,709 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,714 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,732 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,736 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,744 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:54,747 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,049 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,053 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,055 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,058 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,062 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,065 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,069 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,071 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,075 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,077 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,087 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,091 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,094 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,097 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,099 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,102 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,107 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,113 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,117 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,120 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,122 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,128 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,134 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,137 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,140 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,145 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,147 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,151 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,155 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,157 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,160 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,165 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,167 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,171 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,178 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,182 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,184 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,191 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,194 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,203 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,207 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,212 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,218 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,220 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,223 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,228 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,230 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,234 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,241 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:19:55,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:19:55,629 INFO L244 Elim1Store]: Index analysis took 295 ms [2020-10-24 23:19:55,891 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 23:19:55,892 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:19:55,892 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 43 treesize of output 179 [2020-10-24 23:19:55,901 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-24 23:19:56,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:19:56,186 INFO L244 Elim1Store]: Index analysis took 234 ms [2020-10-24 23:19:56,333 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:19:56,333 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:19:56,334 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:19:56,339 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:19:56,343 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:19:56,344 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:19:56,345 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:56,351 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-24 23:19:56,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:19:56,696 INFO L244 Elim1Store]: Index analysis took 301 ms [2020-10-24 23:19:56,879 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:19:56,880 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:19:56,881 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:19:56,883 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:19:56,885 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:19:56,887 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:19:56,888 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:56,891 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-24 23:19:56,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:19:57,183 INFO L244 Elim1Store]: Index analysis took 253 ms [2020-10-24 23:19:57,350 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:19:57,350 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:19:57,351 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:19:57,354 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-24 23:19:57,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:19:57,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:19:57,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:19:57,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:19:57,633 INFO L244 Elim1Store]: Index analysis took 229 ms [2020-10-24 23:19:57,761 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:19:57,762 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:19:57,762 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:19:57,764 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-24 23:19:57,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:19:58,109 INFO L244 Elim1Store]: Index analysis took 297 ms [2020-10-24 23:19:58,226 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:19:58,227 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:19:58,228 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:19:58,230 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-24 23:19:58,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:19:58,387 INFO L244 Elim1Store]: Index analysis took 102 ms [2020-10-24 23:19:58,547 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:19:58,548 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:19:58,548 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:19:58,555 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:19:58,556 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:19:58,557 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:19:58,558 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:58,569 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:01,161 WARN L193 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 140 DAG size of output: 124 [2020-10-24 23:20:01,163 INFO L625 ElimStorePlain]: treesize reduction 470, result has 68.0 percent of original size [2020-10-24 23:20:01,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:01,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:01,329 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-24 23:20:01,337 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:01,338 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 103 [2020-10-24 23:20:01,340 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:01,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:01,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:01,517 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-24 23:20:01,528 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:01,529 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 103 [2020-10-24 23:20:01,531 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:01,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:01,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:01,701 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-24 23:20:01,709 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:01,710 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 103 [2020-10-24 23:20:01,712 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:01,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:01,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:01,870 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-24 23:20:01,879 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:01,880 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 103 [2020-10-24 23:20:01,883 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:01,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:01,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:01,994 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-24 23:20:02,003 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:02,003 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 103 [2020-10-24 23:20:02,005 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:04,457 WARN L193 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-10-24 23:20:04,459 INFO L625 ElimStorePlain]: treesize reduction 90, result has 91.6 percent of original size [2020-10-24 23:20:04,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773163038] [2020-10-24 23:20:04,464 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-10-24 23:20:04,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [399039775] [2020-10-24 23:20:04,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-24 23:20:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:20:11,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-24 23:20:11,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:20:11,538 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 39 [2020-10-24 23:20:11,540 INFO L350 Elim1Store]: treesize reduction 355, result has 16.1 percent of original size [2020-10-24 23:20:11,541 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 982 treesize of output 964 [2020-10-24 23:20:11,543 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 23:20:11,544 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:11,545 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 5, 1] term [2020-10-24 23:20:11,545 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:11,546 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 5, 1] term [2020-10-24 23:20:11,546 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:11,547 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 5, 1] term [2020-10-24 23:20:11,547 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:11,548 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-10-24 23:20:11,548 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:11,549 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 23:20:11,550 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:11,550 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 23:20:11,551 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:11,552 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 23:20:11,552 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:11,560 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 6, 2, 2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 23:20:11,561 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:11,573 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:12,330 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 86 [2020-10-24 23:20:12,332 INFO L625 ElimStorePlain]: treesize reduction 1710, result has 8.7 percent of original size [2020-10-24 23:20:12,336 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,338 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,340 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,342 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,345 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,347 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,349 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,351 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,353 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-24 23:20:12,353 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:140, output treesize:163 [2020-10-24 23:20:12,356 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,358 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,360 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,361 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,363 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,365 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,367 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,368 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,553 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-24 23:20:12,565 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,567 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,568 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,569 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,572 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,573 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,576 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,577 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,786 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,790 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,792 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,793 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,796 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,797 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,799 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,801 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,804 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,806 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,809 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,812 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,813 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,816 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,817 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,819 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,822 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,824 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,826 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:12,827 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 4 disjuncts [2020-10-24 23:20:13,013 INFO L244 Elim1Store]: Index analysis took 139 ms [2020-10-24 23:20:13,147 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:13,148 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:13,148 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:13,149 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:13,333 INFO L244 Elim1Store]: Index analysis took 152 ms [2020-10-24 23:20:13,467 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:13,468 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:13,468 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:13,470 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:13,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:13,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:13,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:13,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:13,639 INFO L244 Elim1Store]: Index analysis took 147 ms [2020-10-24 23:20:13,778 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:13,778 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:13,779 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:13,781 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:14,031 INFO L244 Elim1Store]: Index analysis took 208 ms [2020-10-24 23:20:14,272 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 23:20:14,273 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:14,274 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 43 treesize of output 179 [2020-10-24 23:20:14,276 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:14,436 INFO L244 Elim1Store]: Index analysis took 123 ms [2020-10-24 23:20:14,578 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:14,578 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:14,579 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:14,580 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:14,739 INFO L244 Elim1Store]: Index analysis took 127 ms [2020-10-24 23:20:14,862 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:14,862 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:14,863 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:14,865 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:15,055 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 23:20:15,056 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:15,056 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 38 treesize of output 120 [2020-10-24 23:20:15,058 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:15,063 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:15,065 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:15,066 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:15,069 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:18,440 WARN L193 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-24 23:20:18,441 INFO L625 ElimStorePlain]: treesize reduction 318, result has 69.4 percent of original size [2020-10-24 23:20:18,498 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-10-24 23:20:18,499 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:18,577 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-10-24 23:20:18,578 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:18,638 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-10-24 23:20:18,639 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:18,740 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-10-24 23:20:18,741 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:18,806 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2020-10-24 23:20:18,807 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:19,847 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 96 [2020-10-24 23:20:19,848 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:19,851 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-10-24 23:20:19,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083135797] [2020-10-24 23:20:19,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-24 23:20:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:20:20,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-24 23:20:20,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:20:20,489 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 33 [2020-10-24 23:20:20,490 INFO L350 Elim1Store]: treesize reduction 355, result has 14.5 percent of original size [2020-10-24 23:20:20,491 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 400 treesize of output 424 [2020-10-24 23:20:20,495 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:21,011 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 79 [2020-10-24 23:20:21,012 INFO L625 ElimStorePlain]: treesize reduction 325, result has 31.1 percent of original size [2020-10-24 23:20:21,015 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,017 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,019 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,020 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,023 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,024 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,026 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,027 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,028 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-24 23:20:21,029 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:120, output treesize:147 [2020-10-24 23:20:21,030 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,032 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,033 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,034 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,036 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,037 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,038 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,039 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,202 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,203 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,205 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,206 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,211 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,213 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,223 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,224 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,421 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,423 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,424 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,427 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,430 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,431 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,433 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,435 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,437 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,438 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,440 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,443 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,444 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,446 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,448 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,449 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,452 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,453 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,457 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,458 INFO L603 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-10-24 23:20:21,713 INFO L244 Elim1Store]: Index analysis took 207 ms [2020-10-24 23:20:21,953 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-24 23:20:21,953 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:21,954 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 38 treesize of output 152 [2020-10-24 23:20:21,956 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:21,957 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:21,958 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:21,959 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:21,960 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:21,963 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:22,357 INFO L244 Elim1Store]: Index analysis took 352 ms [2020-10-24 23:20:22,662 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-24 23:20:22,664 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:22,664 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 43 treesize of output 211 [2020-10-24 23:20:22,667 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-24 23:20:22,668 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:22,668 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:22,669 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:22,669 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:22,679 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:22,684 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:22,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:22,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:22,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:22,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-24 23:20:22,890 INFO L244 Elim1Store]: Index analysis took 179 ms [2020-10-24 23:20:23,105 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-24 23:20:23,106 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:23,107 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 40 treesize of output 154 [2020-10-24 23:20:23,109 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:23,111 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:23,246 INFO L244 Elim1Store]: Index analysis took 117 ms [2020-10-24 23:20:23,416 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-24 23:20:23,416 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:23,417 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 38 treesize of output 152 [2020-10-24 23:20:23,419 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:23,420 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:23,424 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:23,427 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:23,428 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:23,434 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:23,594 INFO L244 Elim1Store]: Index analysis took 134 ms [2020-10-24 23:20:23,764 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-24 23:20:23,765 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:23,765 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 40 treesize of output 154 [2020-10-24 23:20:23,768 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:23,769 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:23,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:23,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:23,771 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:23,773 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:23,773 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:23,774 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:23,775 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:23,776 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:23,776 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:23,777 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-24 23:20:23,792 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:23,795 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:23,798 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:23,801 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:23,976 INFO L244 Elim1Store]: Index analysis took 151 ms [2020-10-24 23:20:24,165 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-24 23:20:24,166 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:24,166 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 38 treesize of output 152 [2020-10-24 23:20:24,168 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:24,169 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:24,169 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:24,179 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:24,180 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:24,183 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:24,459 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-24 23:20:24,460 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:24,460 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 40 treesize of output 154 [2020-10-24 23:20:24,461 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-24 23:20:24,462 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-24 23:20:24,467 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-24 23:20:24,468 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 23:20:24,469 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:20:24,471 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:26,231 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 128 DAG size of output: 91 [2020-10-24 23:20:26,234 INFO L625 ElimStorePlain]: treesize reduction 486, result has 57.0 percent of original size [2020-10-24 23:20:26,315 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:26,315 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 68 [2020-10-24 23:20:26,316 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:26,436 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:26,436 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 68 [2020-10-24 23:20:26,437 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:26,537 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:26,537 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 68 [2020-10-24 23:20:26,538 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:26,609 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:26,610 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 68 [2020-10-24 23:20:26,611 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:26,673 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:20:26,674 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 68 [2020-10-24 23:20:26,675 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-10-24 23:20:28,148 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-24 23:20:28,149 INFO L625 ElimStorePlain]: treesize reduction 140, result has 81.7 percent of original size [2020-10-24 23:20:28,151 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-10-24 23:20:28,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:20:28,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-24 23:20:28,152 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-24 23:20:28,152 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:20:28,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,5 cvc4 --incremental --print-success --lang smt --rewrite-divk,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-24 23:20:28,788 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-24 23:20:28,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:20:28 BoogieIcfgContainer [2020-10-24 23:20:28,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:20:28,789 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:20:28,789 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:20:28,789 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:20:28,790 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:48" (3/4) ... [2020-10-24 23:20:28,796 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:20:28,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:20:28,805 INFO L168 Benchmark]: Toolchain (without parser) took 49012.01 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 23.7 MB in the beginning and 19.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:28,806 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 46.1 MB. Free memory was 31.6 MB in the beginning and 31.6 MB in the end (delta: 52.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:20:28,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.69 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 21.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:28,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.02 ms. Allocated memory is still 46.1 MB. Free memory was 21.0 MB in the beginning and 30.3 MB in the end (delta: -9.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:28,809 INFO L168 Benchmark]: Boogie Preprocessor took 97.60 ms. Allocated memory is still 46.1 MB. Free memory was 30.3 MB in the beginning and 28.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:28,810 INFO L168 Benchmark]: RCFGBuilder took 7970.65 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 28.0 MB in the beginning and 38.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:28,814 INFO L168 Benchmark]: TraceAbstraction took 40307.07 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 38.0 MB in the beginning and 19.1 MB in the end (delta: 19.0 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:20:28,814 INFO L168 Benchmark]: Witness Printer took 7.28 ms. Allocated memory is still 69.2 MB. Free memory is still 19.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:20:28,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 46.1 MB. Free memory was 31.6 MB in the beginning and 31.6 MB in the end (delta: 52.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 495.69 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 21.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 115.02 ms. Allocated memory is still 46.1 MB. Free memory was 21.0 MB in the beginning and 30.3 MB in the end (delta: -9.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.60 ms. Allocated memory is still 46.1 MB. Free memory was 30.3 MB in the beginning and 28.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 7970.65 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 28.0 MB in the beginning and 38.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 40307.07 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 38.0 MB in the beginning and 19.1 MB in the end (delta: 19.0 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. * Witness Printer took 7.28 ms. Allocated memory is still 69.2 MB. Free memory is still 19.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L129] float x = 1.0f / 0.0f; [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff [L68] COND TRUE ix >= 0x50800000 [L69] COND FALSE !(((ix) > 0x7f800000L)) [L71] COND TRUE hx > 0 [L72] EXPR atanhi_atan[3] [L72] EXPR atanlo_atan[3] [L72] return atanhi_atan[3] + atanlo_atan[3]; [L130] float res = atan_float(x); [L132] COND TRUE res != pi_o_2 [L3] __assert_fail("0", "float_req_bl_0621a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 40.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 28 SDslu, 7 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 6 QuantifiedInterpolants, 1271 SizeOfPredicates, 8 NumberOfNonLiveVariables, 188 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...