./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 096883e9 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_1092c.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 10b157bbf40e5e7436c6fc32559679f4a195c114 .................................................................................................................................................................................................................................................................................................................. 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_1092c.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 10b157bbf40e5e7436c6fc32559679f4a195c114 .......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-096883e [2020-12-01 23:20:34,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:20:34,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:20:34,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:20:34,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:20:34,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:20:34,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:20:34,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:20:34,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:20:34,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:20:34,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:20:34,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:20:34,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:20:34,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:20:34,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:20:34,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:20:34,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:20:34,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:20:34,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:20:34,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:20:34,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:20:34,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:20:34,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:20:34,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:20:34,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:20:34,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:20:34,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:20:34,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:20:34,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:20:34,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:20:34,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:20:34,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:20:34,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:20:34,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:20:34,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:20:34,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:20:34,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:20:34,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:20:34,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:20:34,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:20:34,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:20:34,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 23:20:35,035 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:20:35,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:20:35,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:20:35,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:20:35,038 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:20:35,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:20:35,039 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:20:35,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 23:20:35,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:20:35,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:20:35,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:20:35,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:20:35,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:20:35,040 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:20:35,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:20:35,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:20:35,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:20:35,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:20:35,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:20:35,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:20:35,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:20:35,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:20:35,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:20:35,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:20:35,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:20:35,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 23:20:35,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 23:20:35,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:20:35,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:20:35,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10b157bbf40e5e7436c6fc32559679f4a195c114 [2020-12-01 23:20:35,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:20:35,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:20:35,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:20:35,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:20:35,458 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:20:35,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2020-12-01 23:20:35,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f40205a4/b013d277cb8740559e67c633c36b393c/FLAG52d9dccc9 [2020-12-01 23:20:36,158 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:20:36,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2020-12-01 23:20:36,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f40205a4/b013d277cb8740559e67c633c36b393c/FLAG52d9dccc9 [2020-12-01 23:20:36,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f40205a4/b013d277cb8740559e67c633c36b393c [2020-12-01 23:20:36,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:20:36,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:20:36,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:20:36,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:20:36,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:20:36,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:36,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e49dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36, skipping insertion in model container [2020-12-01 23:20:36,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:36,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:20:36,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:20:36,800 WARN L226 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_1092c.c[2414,2427] [2020-12-01 23:20:36,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:20:36,821 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:20:36,903 WARN L226 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_1092c.c[2414,2427] [2020-12-01 23:20:36,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:20:36,929 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:20:36,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36 WrapperNode [2020-12-01 23:20:36,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:20:36,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:20:36,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:20:36,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:20:36,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:36,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:37,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:20:37,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:20:37,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:20:37,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:20:37,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:37,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:37,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:37,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:37,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:37,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:37,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:37,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:20:37,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:20:37,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:20:37,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:20:37,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:20:37,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 23:20:37,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:20:37,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 23:20:37,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 23:20:37,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 23:20:37,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:20:37,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:20:37,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 23:20:37,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:20:37,659 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:20:37,659 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-01 23:20:37,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:37 BoogieIcfgContainer [2020-12-01 23:20:37,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:20:37,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:20:37,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:20:37,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:20:37,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:20:36" (1/3) ... [2020-12-01 23:20:37,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396e40cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:20:37, skipping insertion in model container [2020-12-01 23:20:37,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36" (2/3) ... [2020-12-01 23:20:37,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396e40cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:20:37, skipping insertion in model container [2020-12-01 23:20:37,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:37" (3/3) ... [2020-12-01 23:20:37,680 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c.c [2020-12-01 23:20:37,699 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:20:37,703 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:20:37,726 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:20:37,755 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:20:37,755 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:20:37,755 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:20:37,756 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:20:37,756 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:20:37,756 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:20:37,756 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:20:37,756 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:20:37,773 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-01 23:20:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 23:20:37,780 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:37,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:37,781 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:37,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:37,788 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-12-01 23:20:37,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:20:37,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564236799] [2020-12-01 23:20:37,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:20:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:20:37,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:37,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564236799] [2020-12-01 23:20:37,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:20:37,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 23:20:37,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722334979] [2020-12-01 23:20:37,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:20:37,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 23:20:37,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:20:37,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:20:37,983 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-12-01 23:20:38,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:20:38,006 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2020-12-01 23:20:38,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:20:38,007 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-01 23:20:38,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:20:38,019 INFO L225 Difference]: With dead ends: 72 [2020-12-01 23:20:38,019 INFO L226 Difference]: Without dead ends: 34 [2020-12-01 23:20:38,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:20:38,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-01 23:20:38,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-01 23:20:38,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-01 23:20:38,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-12-01 23:20:38,077 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-12-01 23:20:38,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:20:38,078 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-12-01 23:20:38,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:20:38,078 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-12-01 23:20:38,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 23:20:38,081 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:38,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:38,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 23:20:38,082 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:38,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:38,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-12-01 23:20:38,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:20:38,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162448353] [2020-12-01 23:20:38,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:20:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:20:38,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:20:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:20:38,402 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:20:38,435 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 23:20:38,436 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:20:38,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 23:20:38,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:20:38 BoogieIcfgContainer [2020-12-01 23:20:38,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:20:38,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:20:38,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:20:38,476 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:20:38,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:37" (3/4) ... [2020-12-01 23:20:38,480 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 23:20:38,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:20:38,483 INFO L168 Benchmark]: Toolchain (without parser) took 1959.51 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.4 MB in the beginning and 24.1 MB in the end (delta: -2.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:38,485 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 44.0 MB. Free memory was 31.1 MB in the beginning and 31.1 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:20:38,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.26 ms. Allocated memory is still 44.0 MB. Free memory was 21.2 MB in the beginning and 21.4 MB in the end (delta: -116.6 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:38,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.31 ms. Allocated memory is still 44.0 MB. Free memory was 21.2 MB in the beginning and 28.7 MB in the end (delta: -7.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:38,487 INFO L168 Benchmark]: Boogie Preprocessor took 48.25 ms. Allocated memory is still 44.0 MB. Free memory was 28.7 MB in the beginning and 27.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:20:38,489 INFO L168 Benchmark]: RCFGBuilder took 571.80 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 27.0 MB in the beginning and 24.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:38,489 INFO L168 Benchmark]: TraceAbstraction took 810.84 ms. Allocated memory is still 54.5 MB. Free memory was 24.0 MB in the beginning and 24.4 MB in the end (delta: -345.6 kB). Peak memory consumption was 1.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:38,490 INFO L168 Benchmark]: Witness Printer took 5.37 ms. Allocated memory is still 54.5 MB. Free memory was 24.4 MB in the beginning and 24.1 MB in the end (delta: 264.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:20:38,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 44.0 MB. Free memory was 31.1 MB in the beginning and 31.1 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 406.26 ms. Allocated memory is still 44.0 MB. Free memory was 21.2 MB in the beginning and 21.4 MB in the end (delta: -116.6 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.31 ms. Allocated memory is still 44.0 MB. Free memory was 21.2 MB in the beginning and 28.7 MB in the end (delta: -7.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.25 ms. Allocated memory is still 44.0 MB. Free memory was 28.7 MB in the beginning and 27.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 571.80 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 27.0 MB in the beginning and 24.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 810.84 ms. Allocated memory is still 54.5 MB. Free memory was 24.0 MB in the beginning and 24.4 MB in the end (delta: -345.6 kB). Peak memory consumption was 1.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.37 ms. Allocated memory is still 54.5 MB. Free memory was 24.4 MB in the beginning and 24.1 MB in the end (delta: 264.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 109]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 40, overapproximation of bitwiseOr at line 92, overapproximation of someBinaryArithmeticDOUBLEoperation at line 105, overapproximation of bitwiseAnd at line 91. Possible FailurePath: [L16] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L105] double x = 1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND FALSE !(j0 < 0) [L40] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L41] COND TRUE ((i0 & i) | i1) == 0 [L42] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L106] double res = ceil_double(x); [L84] __int32_t hx, lx; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L108] COND TRUE !isinf_double(res) [L109] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-096883e [2020-12-01 23:20:41,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:20:41,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:20:41,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:20:41,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:20:41,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:20:41,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:20:41,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:20:41,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:20:41,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:20:41,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:20:41,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:20:41,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:20:41,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:20:41,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:20:41,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:20:41,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:20:41,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:20:41,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:20:41,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:20:41,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:20:41,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:20:41,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:20:41,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:20:41,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:20:41,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:20:41,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:20:41,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:20:41,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:20:41,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:20:41,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:20:41,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:20:41,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:20:41,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:20:41,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:20:41,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:20:41,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:20:41,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:20:41,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:20:41,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:20:41,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:20:41,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 23:20:41,273 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:20:41,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:20:41,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:20:41,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:20:41,276 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:20:41,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:20:41,277 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:20:41,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:20:41,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:20:41,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:20:41,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:20:41,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:20:41,280 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 23:20:41,280 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 23:20:41,280 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:20:41,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:20:41,280 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:20:41,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:20:41,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:20:41,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:20:41,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:20:41,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:20:41,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:20:41,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:20:41,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:20:41,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:20:41,283 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 23:20:41,283 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 23:20:41,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:20:41,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:20:41,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 23:20:41,284 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10b157bbf40e5e7436c6fc32559679f4a195c114 [2020-12-01 23:20:41,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:20:41,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:20:41,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:20:41,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:20:41,810 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:20:41,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2020-12-01 23:20:41,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada19a1f5/d478e70116f148aa824d991396bfd160/FLAGa56db44bb [2020-12-01 23:20:42,554 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:20:42,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2020-12-01 23:20:42,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada19a1f5/d478e70116f148aa824d991396bfd160/FLAGa56db44bb [2020-12-01 23:20:42,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada19a1f5/d478e70116f148aa824d991396bfd160 [2020-12-01 23:20:42,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:20:42,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:20:42,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:20:42,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:20:42,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:20:42,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:20:42" (1/1) ... [2020-12-01 23:20:42,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94940f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:42, skipping insertion in model container [2020-12-01 23:20:42,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:20:42" (1/1) ... [2020-12-01 23:20:42,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:20:42,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:20:43,184 WARN L226 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_1092c.c[2414,2427] [2020-12-01 23:20:43,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:20:43,204 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:20:43,242 WARN L226 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_1092c.c[2414,2427] [2020-12-01 23:20:43,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:20:43,271 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:20:43,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43 WrapperNode [2020-12-01 23:20:43,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:20:43,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:20:43,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:20:43,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:20:43,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:20:43,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:20:43,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:20:43,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:20:43,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:20:43,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:20:43,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:20:43,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:20:43,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:20:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 23:20:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 23:20:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 23:20:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:20:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 23:20:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:20:43,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:20:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 23:20:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:20:45,686 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:20:45,687 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-01 23:20:45,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:45 BoogieIcfgContainer [2020-12-01 23:20:45,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:20:45,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:20:45,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:20:45,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:20:45,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:20:42" (1/3) ... [2020-12-01 23:20:45,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d849b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:20:45, skipping insertion in model container [2020-12-01 23:20:45,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (2/3) ... [2020-12-01 23:20:45,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d849b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:20:45, skipping insertion in model container [2020-12-01 23:20:45,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:45" (3/3) ... [2020-12-01 23:20:45,699 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c.c [2020-12-01 23:20:45,715 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:20:45,720 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:20:45,733 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:20:45,759 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:20:45,759 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:20:45,759 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:20:45,759 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:20:45,760 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:20:45,760 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:20:45,760 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:20:45,760 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:20:45,775 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-01 23:20:45,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 23:20:45,781 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:45,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:45,783 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:45,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:45,790 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-12-01 23:20:45,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:20:45,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169588794] [2020-12-01 23:20:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 23:20:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:20:46,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 23:20:46,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:20:46,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:46,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:20:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:46,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169588794] [2020-12-01 23:20:46,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:20:46,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 23:20:46,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855788796] [2020-12-01 23:20:46,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:20:46,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:20:46,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:20:46,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:20:46,201 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-12-01 23:20:46,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:20:46,231 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2020-12-01 23:20:46,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:20:46,233 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-01 23:20:46,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:20:46,248 INFO L225 Difference]: With dead ends: 72 [2020-12-01 23:20:46,249 INFO L226 Difference]: Without dead ends: 34 [2020-12-01 23:20:46,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:20:46,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-01 23:20:46,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-01 23:20:46,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-01 23:20:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-12-01 23:20:46,300 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-12-01 23:20:46,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:20:46,300 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-12-01 23:20:46,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:20:46,301 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-12-01 23:20:46,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 23:20:46,303 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:46,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:46,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 23:20:46,518 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:46,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:46,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-12-01 23:20:46,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:20:46,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116321954] [2020-12-01 23:20:46,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 23:20:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:20:46,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 23:20:46,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:20:46,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:46,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:20:47,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:47,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116321954] [2020-12-01 23:20:47,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:20:47,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-12-01 23:20:47,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896073280] [2020-12-01 23:20:47,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 23:20:47,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:20:47,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 23:20:47,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-01 23:20:47,126 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 8 states. [2020-12-01 23:20:47,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:20:47,621 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2020-12-01 23:20:47,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 23:20:47,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-12-01 23:20:47,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:20:47,625 INFO L225 Difference]: With dead ends: 42 [2020-12-01 23:20:47,626 INFO L226 Difference]: Without dead ends: 16 [2020-12-01 23:20:47,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-12-01 23:20:47,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-01 23:20:47,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-01 23:20:47,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 23:20:47,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-12-01 23:20:47,633 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-12-01 23:20:47,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:20:47,633 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-12-01 23:20:47,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 23:20:47,634 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-12-01 23:20:47,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 23:20:47,635 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:47,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:47,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 23:20:47,849 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:47,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:47,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1582346339, now seen corresponding path program 1 times [2020-12-01 23:20:47,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:20:47,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141137517] [2020-12-01 23:20:47,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 23:20:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:20:48,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:20:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:20:48,277 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:20:48,338 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 23:20:48,338 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:20:48,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 23:20:48,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:20:48 BoogieIcfgContainer [2020-12-01 23:20:48,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:20:48,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:20:48,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:20:48,592 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:20:48,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:45" (3/4) ... [2020-12-01 23:20:48,595 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 23:20:48,659 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-01 23:20:48,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:20:48,662 INFO L168 Benchmark]: Toolchain (without parser) took 5738.69 ms. Allocated memory was 46.1 MB in the beginning and 65.0 MB in the end (delta: 18.9 MB). Free memory was 22.5 MB in the beginning and 34.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,663 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 33.6 MB. Free memory was 16.1 MB in the beginning and 16.1 MB in the end (delta: 24.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:20:48,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.81 ms. Allocated memory is still 46.1 MB. Free memory was 22.3 MB in the beginning and 21.7 MB in the end (delta: 530.2 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.08 ms. Allocated memory is still 46.1 MB. Free memory was 21.7 MB in the beginning and 19.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,665 INFO L168 Benchmark]: Boogie Preprocessor took 95.63 ms. Allocated memory is still 46.1 MB. Free memory was 19.9 MB in the beginning and 29.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,666 INFO L168 Benchmark]: RCFGBuilder took 2220.50 ms. Allocated memory was 46.1 MB in the beginning and 65.0 MB in the end (delta: 18.9 MB). Free memory was 29.5 MB in the beginning and 46.9 MB in the end (delta: -17.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,667 INFO L168 Benchmark]: TraceAbstraction took 2900.24 ms. Allocated memory is still 65.0 MB. Free memory was 46.3 MB in the beginning and 37.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,668 INFO L168 Benchmark]: Witness Printer took 68.20 ms. Allocated memory is still 65.0 MB. Free memory was 37.2 MB in the beginning and 34.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 33.6 MB. Free memory was 16.1 MB in the beginning and 16.1 MB in the end (delta: 24.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 350.81 ms. Allocated memory is still 46.1 MB. Free memory was 22.3 MB in the beginning and 21.7 MB in the end (delta: 530.2 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.08 ms. Allocated memory is still 46.1 MB. Free memory was 21.7 MB in the beginning and 19.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 95.63 ms. Allocated memory is still 46.1 MB. Free memory was 19.9 MB in the beginning and 29.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2220.50 ms. Allocated memory was 46.1 MB in the beginning and 65.0 MB in the end (delta: 18.9 MB). Free memory was 29.5 MB in the beginning and 46.9 MB in the end (delta: -17.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2900.24 ms. Allocated memory is still 65.0 MB. Free memory was 46.3 MB in the beginning and 37.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Witness Printer took 68.20 ms. Allocated memory is still 65.0 MB. Free memory was 37.2 MB in the beginning and 34.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 109]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L105] double x = 1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND FALSE !(j0 < 20) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] COND TRUE j0 > 51 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L51] COND TRUE j0 == 0x400 [L52] return x + x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L106] double res = ceil_double(x); [L84] __int32_t hx, lx; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L108] COND TRUE !isinf_double(res) [L109] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 44 SDslu, 6 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 52 ConstructedInterpolants, 5 QuantifiedInterpolants, 2276 SizeOfPredicates, 8 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...