./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0971.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/double_req_bl_0971.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 af619ca7e2648e42636a663f6d97c4f9b402f61d ......................................................................................................................................................................................................................................................................................................................... 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/double_req_bl_0971.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 af619ca7e2648e42636a663f6d97c4f9b402f61d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:38:58,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:38:58,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:38:58,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:38:58,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:38:58,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:38:58,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:38:58,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:38:58,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:38:58,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:38:58,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:38:58,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:38:58,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:38:58,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:38:58,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:38:58,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:38:58,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:38:58,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:38:58,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:38:58,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:38:58,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:38:58,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:38:58,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:38:58,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:38:58,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:38:58,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:38:58,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:38:58,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:38:58,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:38:58,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:38:58,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:38:58,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:38:58,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:38:58,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:38:58,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:38:58,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:38:58,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:38:58,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:38:58,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:38:58,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:38:58,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:38:58,897 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 01:38:58,926 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:38:58,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:38:58,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:38:58,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:38:58,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:38:58,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:38:58,929 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:38:58,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:38:58,929 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:38:58,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 01:38:58,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:38:58,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:38:58,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:38:58,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:38:58,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:38:58,931 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:38:58,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:38:58,931 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:38:58,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:38:58,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:38:58,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:38:58,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:38:58,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:38:58,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:38:58,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:38:58,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:38:58,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 01:38:58,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 01:38:58,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:38:58,933 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:38:58,933 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af619ca7e2648e42636a663f6d97c4f9b402f61d [2021-08-26 01:38:59,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:38:59,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:38:59,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:38:59,219 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:38:59,220 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:38:59,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2021-08-26 01:38:59,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c0782940/91df2141e9c24b1a92b49734cc00d07e/FLAG2d8e47314 [2021-08-26 01:38:59,613 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:38:59,614 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2021-08-26 01:38:59,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c0782940/91df2141e9c24b1a92b49734cc00d07e/FLAG2d8e47314 [2021-08-26 01:38:59,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c0782940/91df2141e9c24b1a92b49734cc00d07e [2021-08-26 01:38:59,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:38:59,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:38:59,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:38:59,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:38:59,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:38:59,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:38:59" (1/1) ... [2021-08-26 01:38:59,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f5b9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59, skipping insertion in model container [2021-08-26 01:38:59,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:38:59" (1/1) ... [2021-08-26 01:38:59,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:38:59,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:38:59,835 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0971.c[4582,4595] [2021-08-26 01:38:59,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:38:59,886 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:38:59,928 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0971.c[4582,4595] [2021-08-26 01:38:59,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:38:59,947 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:38:59,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59 WrapperNode [2021-08-26 01:38:59,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:38:59,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:38:59,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:38:59,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:38:59,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59" (1/1) ... [2021-08-26 01:38:59,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59" (1/1) ... [2021-08-26 01:38:59,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:38:59,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:39:00,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:39:00,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:39:00,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59" (1/1) ... [2021-08-26 01:39:00,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59" (1/1) ... [2021-08-26 01:39:00,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59" (1/1) ... [2021-08-26 01:39:00,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59" (1/1) ... [2021-08-26 01:39:00,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59" (1/1) ... [2021-08-26 01:39:00,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59" (1/1) ... [2021-08-26 01:39:00,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59" (1/1) ... [2021-08-26 01:39:00,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:39:00,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:39:00,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:39:00,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:39:00,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59" (1/1) ... [2021-08-26 01:39:00,048 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:39:00,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:39:00,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:39:00,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:39:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 01:39:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:39:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-26 01:39:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 01:39:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-26 01:39:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:39:00,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:39:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 01:39:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:39:00,524 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:39:00,524 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-08-26 01:39:00,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:39:00 BoogieIcfgContainer [2021-08-26 01:39:00,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:39:00,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:39:00,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:39:00,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:39:00,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:38:59" (1/3) ... [2021-08-26 01:39:00,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea5de4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:39:00, skipping insertion in model container [2021-08-26 01:39:00,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:38:59" (2/3) ... [2021-08-26 01:39:00,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea5de4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:39:00, skipping insertion in model container [2021-08-26 01:39:00,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:39:00" (3/3) ... [2021-08-26 01:39:00,532 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0971.c [2021-08-26 01:39:00,536 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:39:00,536 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:39:00,575 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:39:00,593 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:39:00,593 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:39:00,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.725) internal successors, (69), 41 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:00,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-26 01:39:00,608 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:39:00,608 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:39:00,609 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:39:00,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:39:00,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1032073611, now seen corresponding path program 1 times [2021-08-26 01:39:00,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:39:00,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968986296] [2021-08-26 01:39:00,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:39:00,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:39:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:39:00,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:39:00,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 01:39:00,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968986296] [2021-08-26 01:39:00,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968986296] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 01:39:00,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:39:00,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 01:39:00,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803490640] [2021-08-26 01:39:00,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:39:00,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 01:39:00,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:39:00,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:39:00,764 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.725) internal successors, (69), 41 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:00,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:39:00,780 INFO L93 Difference]: Finished difference Result 82 states and 136 transitions. [2021-08-26 01:39:00,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:39:00,781 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-26 01:39:00,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:39:00,787 INFO L225 Difference]: With dead ends: 82 [2021-08-26 01:39:00,787 INFO L226 Difference]: Without dead ends: 39 [2021-08-26 01:39:00,789 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:39:00,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-08-26 01:39:00,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-08-26 01:39:00,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:00,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-08-26 01:39:00,814 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 10 [2021-08-26 01:39:00,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:39:00,814 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-08-26 01:39:00,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:00,815 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2021-08-26 01:39:00,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 01:39:00,815 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:39:00,815 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:39:00,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 01:39:00,816 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:39:00,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:39:00,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1303233586, now seen corresponding path program 1 times [2021-08-26 01:39:00,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:39:00,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5819588] [2021-08-26 01:39:00,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:39:00,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:39:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:39:00,841 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 01:39:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:39:00,895 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 01:39:00,898 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 01:39:00,899 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:39:00,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 01:39:00,905 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:39:00,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:39:00 BoogieIcfgContainer [2021-08-26 01:39:00,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:39:00,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:39:00,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:39:00,951 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:39:00,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:39:00" (3/4) ... [2021-08-26 01:39:00,955 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:39:00,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:39:00,957 INFO L168 Benchmark]: Toolchain (without parser) took 1317.54 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 45.3 MB in the beginning and 40.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:39:00,957 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 65.0 MB. Free memory was 46.8 MB in the beginning and 46.7 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:39:00,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.87 ms. Allocated memory is still 65.0 MB. Free memory was 45.1 MB in the beginning and 45.9 MB in the end (delta: -868.1 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-26 01:39:00,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.58 ms. Allocated memory is still 65.0 MB. Free memory was 45.7 MB in the beginning and 43.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:39:00,958 INFO L168 Benchmark]: Boogie Preprocessor took 42.83 ms. Allocated memory is still 65.0 MB. Free memory was 43.6 MB in the beginning and 41.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:39:00,959 INFO L168 Benchmark]: RCFGBuilder took 483.18 ms. Allocated memory is still 65.0 MB. Free memory was 41.6 MB in the beginning and 32.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-08-26 01:39:00,959 INFO L168 Benchmark]: TraceAbstraction took 422.38 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 31.9 MB in the beginning and 40.9 MB in the end (delta: -9.0 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-08-26 01:39:00,960 INFO L168 Benchmark]: Witness Printer took 4.90 ms. Allocated memory is still 81.8 MB. Free memory was 40.9 MB in the beginning and 40.4 MB in the end (delta: 445.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:39:00,962 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 65.0 MB. Free memory was 46.8 MB in the beginning and 46.7 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.87 ms. Allocated memory is still 65.0 MB. Free memory was 45.1 MB in the beginning and 45.9 MB in the end (delta: -868.1 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.58 ms. Allocated memory is still 65.0 MB. Free memory was 45.7 MB in the beginning and 43.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.83 ms. Allocated memory is still 65.0 MB. Free memory was 43.6 MB in the beginning and 41.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 483.18 ms. Allocated memory is still 65.0 MB. Free memory was 41.6 MB in the beginning and 32.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 422.38 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 31.9 MB in the beginning and 40.9 MB in the end (delta: -9.0 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.90 ms. Allocated memory is still 81.8 MB. Free memory was 40.9 MB in the beginning and 40.4 MB in the end (delta: 445.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 177]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 163, overapproximation of bitwiseOr at line 134, overapproximation of someBinaryArithmeticDOUBLEoperation at line 135. Possible FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L172] double x = 0.0 / 0.0; [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L133] COND TRUE hx < 0x00100000 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L134] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L135] return -two54_log10 / zero_log10; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L173] double res = __ieee754_log10(x); [L163] return x != x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 330.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 6.2ms, AutomataDifference: 34.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 56 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 14.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.9ms SsaConstructionTime, 48.5ms SatisfiabilityAnalysisTime, 48.6ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-08-26 01:39:00,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:39:02,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:39:02,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:39:02,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:39:02,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:39:02,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:39:02,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:39:02,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:39:02,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:39:02,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:39:02,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:39:02,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:39:02,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:39:02,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:39:02,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:39:02,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:39:02,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:39:02,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:39:02,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:39:02,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:39:02,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:39:02,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:39:02,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:39:02,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:39:02,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:39:02,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:39:02,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:39:02,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:39:02,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:39:02,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:39:02,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:39:02,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:39:02,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:39:02,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:39:02,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:39:02,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:39:02,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:39:02,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:39:02,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:39:02,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:39:02,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:39:02,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 01:39:02,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:39:02,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:39:02,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:39:02,622 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:39:02,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:39:02,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:39:02,623 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:39:02,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:39:02,624 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:39:02,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:39:02,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:39:02,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:39:02,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:39:02,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:39:02,625 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 01:39:02,625 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 01:39:02,625 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:39:02,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:39:02,625 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:39:02,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:39:02,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:39:02,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:39:02,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:39:02,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:39:02,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:39:02,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:39:02,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:39:02,633 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 01:39:02,634 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 01:39:02,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:39:02,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:39:02,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 01:39:02,634 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af619ca7e2648e42636a663f6d97c4f9b402f61d [2021-08-26 01:39:02,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:39:02,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:39:02,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:39:02,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:39:02,916 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:39:02,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2021-08-26 01:39:02,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d136635ce/4ed0afd1a837499c9d2fd84a07d69c6c/FLAGefbe805aa [2021-08-26 01:39:03,288 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:39:03,289 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2021-08-26 01:39:03,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d136635ce/4ed0afd1a837499c9d2fd84a07d69c6c/FLAGefbe805aa [2021-08-26 01:39:03,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d136635ce/4ed0afd1a837499c9d2fd84a07d69c6c [2021-08-26 01:39:03,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:39:03,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:39:03,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:39:03,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:39:03,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:39:03,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:39:03" (1/1) ... [2021-08-26 01:39:03,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b467b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:03, skipping insertion in model container [2021-08-26 01:39:03,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:39:03" (1/1) ... [2021-08-26 01:39:03,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:39:03,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:39:03,910 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0971.c[4582,4595] [2021-08-26 01:39:03,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:39:03,930 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:39:03,996 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0971.c[4582,4595] [2021-08-26 01:39:04,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:39:04,027 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:39:04,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:04 WrapperNode [2021-08-26 01:39:04,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:39:04,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:39:04,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:39:04,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:39:04,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:04" (1/1) ... [2021-08-26 01:39:04,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:04" (1/1) ... [2021-08-26 01:39:04,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:39:04,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:39:04,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:39:04,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:39:04,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:04" (1/1) ... [2021-08-26 01:39:04,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:04" (1/1) ... [2021-08-26 01:39:04,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:04" (1/1) ... [2021-08-26 01:39:04,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:04" (1/1) ... [2021-08-26 01:39:04,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:04" (1/1) ... [2021-08-26 01:39:04,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:04" (1/1) ... [2021-08-26 01:39:04,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:04" (1/1) ... [2021-08-26 01:39:04,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:39:04,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:39:04,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:39:04,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:39:04,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:04" (1/1) ... [2021-08-26 01:39:04,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:39:04,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:39:04,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:39:04,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:39:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-26 01:39:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-08-26 01:39:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 01:39:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:39:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 01:39:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:39:04,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:39:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-26 01:39:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:39:37,180 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:39:37,181 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-08-26 01:39:37,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:39:37 BoogieIcfgContainer [2021-08-26 01:39:37,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:39:37,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:39:37,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:39:37,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:39:37,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:39:03" (1/3) ... [2021-08-26 01:39:37,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a833ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:39:37, skipping insertion in model container [2021-08-26 01:39:37,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:39:04" (2/3) ... [2021-08-26 01:39:37,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a833ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:39:37, skipping insertion in model container [2021-08-26 01:39:37,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:39:37" (3/3) ... [2021-08-26 01:39:37,188 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0971.c [2021-08-26 01:39:37,191 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:39:37,191 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:39:37,219 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:39:37,223 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:39:37,223 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:39:37,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.725) internal successors, (69), 41 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:37,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-26 01:39:37,237 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:39:37,237 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:39:37,238 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:39:37,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:39:37,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1032073611, now seen corresponding path program 1 times [2021-08-26 01:39:37,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:39:37,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541480756] [2021-08-26 01:39:37,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:39:37,250 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:39:37,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:39:37,261 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:39:37,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 01:39:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:39:38,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 01:39:38,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:39:38,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:39:38,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:39:38,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:39:38,541 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:39:38,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541480756] [2021-08-26 01:39:38,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541480756] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:39:38,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:39:38,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 01:39:38,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670864676] [2021-08-26 01:39:38,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:39:38,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:39:38,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:39:38,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:39:38,556 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.725) internal successors, (69), 41 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:38,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:39:38,567 INFO L93 Difference]: Finished difference Result 82 states and 136 transitions. [2021-08-26 01:39:38,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:39:38,569 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-26 01:39:38,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:39:38,574 INFO L225 Difference]: With dead ends: 82 [2021-08-26 01:39:38,574 INFO L226 Difference]: Without dead ends: 39 [2021-08-26 01:39:38,576 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:39:38,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-08-26 01:39:38,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-08-26 01:39:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:38,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-08-26 01:39:38,597 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 10 [2021-08-26 01:39:38,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:39:38,597 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-08-26 01:39:38,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:38,597 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2021-08-26 01:39:38,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 01:39:38,598 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:39:38,598 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:39:38,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 01:39:38,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:39:38,803 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:39:38,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:39:38,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1303233586, now seen corresponding path program 1 times [2021-08-26 01:39:38,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:39:38,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993988674] [2021-08-26 01:39:38,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:39:38,806 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:39:38,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:39:38,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:39:38,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 01:39:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:39:39,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-26 01:39:39,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:39:40,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:39:40,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:39:42,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:39:42,115 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:39:42,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993988674] [2021-08-26 01:39:42,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993988674] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:39:42,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:39:42,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-26 01:39:42,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515792715] [2021-08-26 01:39:42,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 01:39:42,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:39:42,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 01:39:42,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-26 01:39:42,117 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:51,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:39:51,855 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2021-08-26 01:39:51,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 01:39:51,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-26 01:39:51,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:39:51,858 INFO L225 Difference]: With dead ends: 61 [2021-08-26 01:39:51,858 INFO L226 Difference]: Without dead ends: 56 [2021-08-26 01:39:51,859 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2325.4ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-26 01:39:51,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-08-26 01:39:51,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 39. [2021-08-26 01:39:51,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.368421052631579) internal successors, (52), 38 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:51,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2021-08-26 01:39:51,863 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 11 [2021-08-26 01:39:51,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:39:51,864 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2021-08-26 01:39:51,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:51,864 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2021-08-26 01:39:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 01:39:51,865 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:39:51,865 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:39:51,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 01:39:52,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:39:52,077 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:39:52,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:39:52,078 INFO L82 PathProgramCache]: Analyzing trace with hash -593045937, now seen corresponding path program 1 times [2021-08-26 01:39:52,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:39:52,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903151768] [2021-08-26 01:39:52,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:39:52,080 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:39:52,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:39:52,081 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:39:52,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 01:39:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:39:52,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-26 01:39:52,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:39:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:39:53,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:39:57,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:39:57,685 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:39:57,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903151768] [2021-08-26 01:39:57,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903151768] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:39:57,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:39:57,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-08-26 01:39:57,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51526614] [2021-08-26 01:39:57,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-26 01:39:57,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:39:57,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-26 01:39:57,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-26 01:39:57,687 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:40:50,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:40:50,644 INFO L93 Difference]: Finished difference Result 52 states and 68 transitions. [2021-08-26 01:40:50,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 01:40:50,658 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-26 01:40:50,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:40:50,658 INFO L225 Difference]: With dead ends: 52 [2021-08-26 01:40:50,658 INFO L226 Difference]: Without dead ends: 47 [2021-08-26 01:40:50,659 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4108.0ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-08-26 01:40:50,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-26 01:40:50,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2021-08-26 01:40:50,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 38 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:40:50,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2021-08-26 01:40:50,662 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 11 [2021-08-26 01:40:50,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:40:50,662 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-08-26 01:40:50,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:40:50,663 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2021-08-26 01:40:50,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-26 01:40:50,663 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:40:50,663 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:40:50,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-08-26 01:40:50,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:40:50,874 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:40:50,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:40:50,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1811167824, now seen corresponding path program 1 times [2021-08-26 01:40:50,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:40:50,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416656939] [2021-08-26 01:40:50,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:40:50,875 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:40:50,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:40:50,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:40:50,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-26 01:40:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:40:51,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-26 01:40:51,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:40:54,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:40:54,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:41:02,611 WARN L860 $PredicateComparison]: unable to prove that (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53)) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start___ieee754_log10_~x c_ULTIMATE.start___ieee754_log10_~x) c_~zero_log10~0)) is different from true [2021-08-26 01:41:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:41:24,970 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:41:24,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416656939] [2021-08-26 01:41:24,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416656939] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:41:24,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:41:24,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-08-26 01:41:24,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603904859] [2021-08-26 01:41:24,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-26 01:41:24,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:41:24,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-26 01:41:24,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2021-08-26 01:41:24,971 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:42:14,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:42:14,001 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2021-08-26 01:42:14,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 01:42:14,183 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-26 01:42:14,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:42:14,184 INFO L225 Difference]: With dead ends: 45 [2021-08-26 01:42:14,184 INFO L226 Difference]: Without dead ends: 40 [2021-08-26 01:42:14,184 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 7077.1ms TimeCoverageRelationStatistics Valid=44, Invalid=91, Unknown=1, NotChecked=20, Total=156 [2021-08-26 01:42:14,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-08-26 01:42:14,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2021-08-26 01:42:14,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 38 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:42:14,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2021-08-26 01:42:14,187 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 12 [2021-08-26 01:42:14,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:42:14,188 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2021-08-26 01:42:14,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:42:14,188 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2021-08-26 01:42:14,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-26 01:42:14,188 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:42:14,188 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:42:14,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-26 01:42:14,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:42:14,389 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:42:14,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:42:14,390 INFO L82 PathProgramCache]: Analyzing trace with hash -197853759, now seen corresponding path program 1 times [2021-08-26 01:42:14,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:42:14,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729584250] [2021-08-26 01:42:14,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:42:14,391 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:42:14,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:42:14,391 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:42:14,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-26 01:42:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:42:15,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 01:42:15,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:42:17,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:42:17,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:42:22,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:42:22,846 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:42:22,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729584250] [2021-08-26 01:42:22,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729584250] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:42:22,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:42:22,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-26 01:42:22,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079107339] [2021-08-26 01:42:22,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 01:42:22,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:42:22,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 01:42:22,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2021-08-26 01:42:22,848 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:42:26,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:42:26,436 INFO L93 Difference]: Finished difference Result 68 states and 89 transitions. [2021-08-26 01:42:26,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 01:42:26,441 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-08-26 01:42:26,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:42:26,442 INFO L225 Difference]: With dead ends: 68 [2021-08-26 01:42:26,442 INFO L226 Difference]: Without dead ends: 39 [2021-08-26 01:42:26,442 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 5991.0ms TimeCoverageRelationStatistics Valid=34, Invalid=54, Unknown=2, NotChecked=0, Total=90 [2021-08-26 01:42:26,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-08-26 01:42:26,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-08-26 01:42:26,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:42:26,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2021-08-26 01:42:26,445 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 20 [2021-08-26 01:42:26,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:42:26,445 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-08-26 01:42:26,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:42:26,446 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2021-08-26 01:42:26,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-26 01:42:26,446 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:42:26,446 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:42:26,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-26 01:42:26,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:42:26,661 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:42:26,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:42:26,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1415968622, now seen corresponding path program 1 times [2021-08-26 01:42:26,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:42:26,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311995186] [2021-08-26 01:42:26,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:42:26,662 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:42:26,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:42:26,663 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:42:26,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-26 01:42:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:42:27,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 01:42:27,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:42:29,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:42:29,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:42:32,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:42:32,152 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:42:32,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311995186] [2021-08-26 01:42:32,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311995186] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:42:32,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:42:32,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-26 01:42:32,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828458734] [2021-08-26 01:42:32,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 01:42:32,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:42:32,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 01:42:32,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-26 01:42:32,154 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:42:32,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:42:32,927 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2021-08-26 01:42:32,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 01:42:32,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-08-26 01:42:32,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:42:32,929 INFO L225 Difference]: With dead ends: 39 [2021-08-26 01:42:32,929 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 01:42:32,929 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2339.1ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-08-26 01:42:32,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 01:42:32,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 01:42:32,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:42:32,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 01:42:32,930 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2021-08-26 01:42:32,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:42:32,930 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 01:42:32,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:42:32,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 01:42:32,930 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 01:42:32,932 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:42:32,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-26 01:42:33,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:42:33,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 01:42:33,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:42:33,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:42:33,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:42:33,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:42:33,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:42:33,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:42:33,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:42:33,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:42:33,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:42:33,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:42:35,166 INFO L853 garLoopResultBuilder]: At program point L159(lines 120 160) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___ieee754_log10_~x) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_log10_#res|) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-26 01:42:35,167 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2021-08-26 01:42:35,167 INFO L853 garLoopResultBuilder]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2021-08-26 01:42:35,167 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 179) no Hoare annotation was computed. [2021-08-26 01:42:35,168 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 01:42:35,168 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 01:42:35,168 INFO L857 garLoopResultBuilder]: For program point L152-1(lines 152 157) no Hoare annotation was computed. [2021-08-26 01:42:35,168 INFO L853 garLoopResultBuilder]: At program point L152-2(lines 152 157) the Hoare annotation is: false [2021-08-26 01:42:35,168 INFO L857 garLoopResultBuilder]: For program point L152-3(lines 152 157) no Hoare annotation was computed. [2021-08-26 01:42:35,168 INFO L857 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-08-26 01:42:35,168 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 57) no Hoare annotation was computed. [2021-08-26 01:42:35,168 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 111) no Hoare annotation was computed. [2021-08-26 01:42:35,169 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2021-08-26 01:42:35,169 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 37 42) no Hoare annotation was computed. [2021-08-26 01:42:35,169 INFO L853 garLoopResultBuilder]: At program point L37-2(lines 37 42) the Hoare annotation is: false [2021-08-26 01:42:35,169 INFO L857 garLoopResultBuilder]: For program point L37-3(lines 37 42) no Hoare annotation was computed. [2021-08-26 01:42:35,169 INFO L857 garLoopResultBuilder]: For program point L46(lines 46 47) no Hoare annotation was computed. [2021-08-26 01:42:35,170 INFO L857 garLoopResultBuilder]: For program point L71(lines 71 87) no Hoare annotation was computed. [2021-08-26 01:42:35,170 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 63 68) no Hoare annotation was computed. [2021-08-26 01:42:35,170 INFO L853 garLoopResultBuilder]: At program point L63-2(lines 63 68) the Hoare annotation is: false [2021-08-26 01:42:35,170 INFO L857 garLoopResultBuilder]: For program point L63-3(lines 63 68) no Hoare annotation was computed. [2021-08-26 01:42:35,170 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 79) no Hoare annotation was computed. [2021-08-26 01:42:35,170 INFO L853 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___ieee754_log10_~x) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_log10_#res|) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-26 01:42:35,170 INFO L857 garLoopResultBuilder]: For program point L81(lines 81 86) no Hoare annotation was computed. [2021-08-26 01:42:35,170 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 49) no Hoare annotation was computed. [2021-08-26 01:42:35,170 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 109) no Hoare annotation was computed. [2021-08-26 01:42:35,171 INFO L857 garLoopResultBuilder]: For program point L73(lines 73 78) no Hoare annotation was computed. [2021-08-26 01:42:35,171 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 110) no Hoare annotation was computed. [2021-08-26 01:42:35,171 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 01:42:35,171 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-08-26 01:42:35,171 INFO L860 garLoopResultBuilder]: At program point L181(lines 165 182) the Hoare annotation is: true [2021-08-26 01:42:35,171 INFO L857 garLoopResultBuilder]: For program point L140-1(lines 140 144) no Hoare annotation was computed. [2021-08-26 01:42:35,171 INFO L853 garLoopResultBuilder]: At program point L140-2(lines 140 144) the Hoare annotation is: false [2021-08-26 01:42:35,171 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 01:42:35,172 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 145) no Hoare annotation was computed. [2021-08-26 01:42:35,172 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 120 160) no Hoare annotation was computed. [2021-08-26 01:42:35,172 INFO L857 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2021-08-26 01:42:35,172 INFO L857 garLoopResultBuilder]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2021-08-26 01:42:35,172 INFO L853 garLoopResultBuilder]: At program point L125-2(lines 125 130) the Hoare annotation is: (and (= (_ +zero 11 53) ~zero_log10~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___ieee754_log10_~x)) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-26 01:42:35,172 INFO L857 garLoopResultBuilder]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2021-08-26 01:42:35,172 INFO L853 garLoopResultBuilder]: At program point L109(lines 32 111) the Hoare annotation is: false [2021-08-26 01:42:35,173 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 135) no Hoare annotation was computed. [2021-08-26 01:42:35,175 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:42:35,182 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,182 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,182 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,182 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,184 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,184 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,184 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,184 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,184 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,184 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,185 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,185 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,185 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,185 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,185 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,185 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,186 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:42:35,186 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,186 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:42:35,186 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:42:35 BoogieIcfgContainer [2021-08-26 01:42:35,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:42:35,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:42:35,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:42:35,187 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:42:35,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:39:37" (3/4) ... [2021-08-26 01:42:35,190 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 01:42:35,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-08-26 01:42:35,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-08-26 01:42:35,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 01:42:35,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 01:42:35,211 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == zero_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-26 01:42:35,212 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-26 01:42:35,212 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && 1bv32 == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-26 01:42:35,240 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 01:42:35,240 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:42:35,241 INFO L168 Benchmark]: Toolchain (without parser) took 211515.37 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.9 MB in the beginning and 28.9 MB in the end (delta: 6.0 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2021-08-26 01:42:35,242 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 38.1 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:42:35,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.79 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.6 MB in the beginning and 49.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:42:35,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.05 ms. Allocated memory is still 69.2 MB. Free memory was 49.0 MB in the beginning and 46.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:42:35,242 INFO L168 Benchmark]: Boogie Preprocessor took 54.24 ms. Allocated memory is still 69.2 MB. Free memory was 46.7 MB in the beginning and 44.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:42:35,243 INFO L168 Benchmark]: RCFGBuilder took 33034.05 ms. Allocated memory is still 69.2 MB. Free memory was 44.4 MB in the beginning and 45.7 MB in the end (delta: -1.3 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:42:35,243 INFO L168 Benchmark]: TraceAbstraction took 178003.56 ms. Allocated memory is still 69.2 MB. Free memory was 45.1 MB in the beginning and 35.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. [2021-08-26 01:42:35,243 INFO L168 Benchmark]: Witness Printer took 53.20 ms. Allocated memory is still 69.2 MB. Free memory was 35.2 MB in the beginning and 28.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-26 01:42:35,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 38.1 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 303.79 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.6 MB in the beginning and 49.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.05 ms. Allocated memory is still 69.2 MB. Free memory was 49.0 MB in the beginning and 46.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.24 ms. Allocated memory is still 69.2 MB. Free memory was 46.7 MB in the beginning and 44.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 33034.05 ms. Allocated memory is still 69.2 MB. Free memory was 44.4 MB in the beginning and 45.7 MB in the end (delta: -1.3 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 178003.56 ms. Allocated memory is still 69.2 MB. Free memory was 45.1 MB in the beginning and 35.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. * Witness Printer took 53.20 ms. Allocated memory is still 69.2 MB. Free memory was 35.2 MB in the beginning and 28.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 177]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 177958.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 8.3ms, AutomataDifference: 116327.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2027.5ms, InitialAbstractionConstructionTime: 7.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 213 SDtfs, 209 SDslu, 524 SDs, 0 SdLazy, 154 SolverSat, 13 SolverUnsat, 42 SolverUnknown, 0 SolverNotchecked, 105884.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 130 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 21840.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 26.7ms AutomataMinimizationTime, 6 MinimizatonAttempts, 26 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 68 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 41.4ms HoareSimplificationTime, 10 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 1980.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 87.4ms SsaConstructionTime, 3737.6ms SatisfiabilityAnalysisTime, 54039.0ms InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 164 ConstructedInterpolants, 23 QuantifiedInterpolants, 937 SizeOfPredicates, 41 NumberOfNonLiveVariables, 439 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant [2021-08-26 01:42:35,251 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,251 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,251 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,251 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,252 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,252 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,252 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,252 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && 1bv32 == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant [2021-08-26 01:42:35,253 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,253 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,253 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,253 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,253 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,253 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,253 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,253 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 125]: Loop Invariant [2021-08-26 01:42:35,254 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:42:35,254 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:42:35,254 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:42:35,254 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~Pluszero~LONGDOUBLE() == zero_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-08-26 01:42:35,470 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-08-26 01:42:35,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...