./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float13.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/floats-cbmc-regression/float13.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 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 .................................................................................................................................................................................................................................................................................. 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/floats-cbmc-regression/float13.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 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 ............................................................................................................................................................................................................................................................................................................................................................................... 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 00:07:54,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:07:54,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:07:54,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:07:54,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:07:54,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:07:54,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:07:54,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:07:54,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:07:54,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:07:54,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:07:54,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:07:54,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:07:54,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:07:54,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:07:54,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:07:54,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:07:54,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:07:54,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:07:54,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:07:54,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:07:54,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:07:54,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:07:54,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:07:54,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:07:54,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:07:54,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:07:54,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:07:54,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:07:54,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:07:54,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:07:54,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:07:54,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:07:54,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:07:54,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:07:54,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:07:54,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:07:54,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:07:54,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:07:54,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:07:54,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:07:54,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 00:07:54,957 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:07:54,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:07:54,958 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:07:54,958 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:07:54,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:07:54,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:07:54,960 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:07:54,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:07:54,960 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:07:54,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 00:07:54,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:07:54,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:07:54,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:07:54,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:07:54,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:07:54,962 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:07:54,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:07:54,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:07:54,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:07:54,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:07:54,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:07:54,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:07:54,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:07:54,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:07:54,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:07:54,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:07:54,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 00:07:54,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 00:07:54,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:07:54,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:07:54,973 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 [2021-08-26 00:07:55,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:07:55,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:07:55,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:07:55,261 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:07:55,261 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:07:55,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float13.c [2021-08-26 00:07:55,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e4705bf/a0a20911a0424dcabd32864cfc06db86/FLAG60d86e1fb [2021-08-26 00:07:55,655 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:07:55,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float13.c [2021-08-26 00:07:55,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e4705bf/a0a20911a0424dcabd32864cfc06db86/FLAG60d86e1fb [2021-08-26 00:07:55,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e4705bf/a0a20911a0424dcabd32864cfc06db86 [2021-08-26 00:07:55,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:07:55,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:07:55,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:07:55,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:07:55,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:07:55,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:07:55" (1/1) ... [2021-08-26 00:07:55,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b1ea3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55, skipping insertion in model container [2021-08-26 00:07:55,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:07:55" (1/1) ... [2021-08-26 00:07:55,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:07:55,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:07:55,766 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/floats-cbmc-regression/float13.c[497,510] [2021-08-26 00:07:55,768 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/floats-cbmc-regression/float13.c[569,582] [2021-08-26 00:07:55,769 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/floats-cbmc-regression/float13.c[631,644] [2021-08-26 00:07:55,772 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/floats-cbmc-regression/float13.c[693,706] [2021-08-26 00:07:55,772 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/floats-cbmc-regression/float13.c[764,777] [2021-08-26 00:07:55,773 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/floats-cbmc-regression/float13.c[836,849] [2021-08-26 00:07:55,774 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/floats-cbmc-regression/float13.c[895,908] [2021-08-26 00:07:55,774 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/floats-cbmc-regression/float13.c[954,967] [2021-08-26 00:07:55,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:07:55,781 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:07:55,807 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/floats-cbmc-regression/float13.c[497,510] [2021-08-26 00:07:55,808 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/floats-cbmc-regression/float13.c[569,582] [2021-08-26 00:07:55,819 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/floats-cbmc-regression/float13.c[631,644] [2021-08-26 00:07:55,821 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/floats-cbmc-regression/float13.c[693,706] [2021-08-26 00:07:55,822 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/floats-cbmc-regression/float13.c[764,777] [2021-08-26 00:07:55,823 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/floats-cbmc-regression/float13.c[836,849] [2021-08-26 00:07:55,824 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/floats-cbmc-regression/float13.c[895,908] [2021-08-26 00:07:55,825 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/floats-cbmc-regression/float13.c[954,967] [2021-08-26 00:07:55,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:07:55,839 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:07:55,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55 WrapperNode [2021-08-26 00:07:55,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:07:55,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:07:55,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:07:55,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:07:55,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55" (1/1) ... [2021-08-26 00:07:55,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55" (1/1) ... [2021-08-26 00:07:55,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:07:55,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:07:55,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:07:55,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:07:55,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55" (1/1) ... [2021-08-26 00:07:55,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55" (1/1) ... [2021-08-26 00:07:55,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55" (1/1) ... [2021-08-26 00:07:55,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55" (1/1) ... [2021-08-26 00:07:55,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55" (1/1) ... [2021-08-26 00:07:55,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55" (1/1) ... [2021-08-26 00:07:55,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55" (1/1) ... [2021-08-26 00:07:55,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:07:55,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:07:55,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:07:55,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:07:55,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55" (1/1) ... [2021-08-26 00:07:55,908 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:07:55,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:07:55,959 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 00:07:56,012 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 00:07:56,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:07:56,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:07:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 00:07:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:07:56,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:07:56,241 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-26 00:07:56,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:07:56 BoogieIcfgContainer [2021-08-26 00:07:56,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:07:56,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:07:56,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:07:56,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:07:56,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:07:55" (1/3) ... [2021-08-26 00:07:56,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66434f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:07:56, skipping insertion in model container [2021-08-26 00:07:56,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:55" (2/3) ... [2021-08-26 00:07:56,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66434f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:07:56, skipping insertion in model container [2021-08-26 00:07:56,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:07:56" (3/3) ... [2021-08-26 00:07:56,248 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2021-08-26 00:07:56,251 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:07:56,251 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-08-26 00:07:56,281 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:07:56,285 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 00:07:56,285 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-08-26 00:07:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 36 states have internal predecessors, (44), 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 00:07:56,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-26 00:07:56,309 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:07:56,309 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-26 00:07:56,310 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-26 00:07:56,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:07:56,314 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-08-26 00:07:56,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 00:07:56,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349237277] [2021-08-26 00:07:56,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:07:56,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 00:07:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:07:56,394 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 00:07:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:07:56,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 00:07:56,426 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 00:07:56,427 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:07:56,428 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:07:56,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:07:56,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:07:56,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:07:56,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:07:56,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:07:56,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:07:56,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 00:07:56,434 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:07:56,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:07:56 BoogieIcfgContainer [2021-08-26 00:07:56,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:07:56,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:07:56,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:07:56,446 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:07:56,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:07:56" (3/4) ... [2021-08-26 00:07:56,448 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 00:07:56,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:07:56,450 INFO L168 Benchmark]: Toolchain (without parser) took 778.49 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 35.3 MB in the beginning and 42.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:56,450 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.7 MB in the beginning and 38.6 MB in the end (delta: 41.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:07:56,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.72 ms. Allocated memory is still 56.6 MB. Free memory was 35.1 MB in the beginning and 39.8 MB in the end (delta: -4.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:56,451 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.42 ms. Allocated memory is still 56.6 MB. Free memory was 39.8 MB in the beginning and 38.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:07:56,452 INFO L168 Benchmark]: Boogie Preprocessor took 32.96 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 37.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:56,452 INFO L168 Benchmark]: RCFGBuilder took 341.05 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 37.1 MB in the beginning and 57.2 MB in the end (delta: -20.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:56,453 INFO L168 Benchmark]: TraceAbstraction took 201.43 ms. Allocated memory is still 77.6 MB. Free memory was 56.9 MB in the beginning and 43.2 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:56,453 INFO L168 Benchmark]: Witness Printer took 2.92 ms. Allocated memory is still 77.6 MB. Free memory was 43.2 MB in the beginning and 42.6 MB in the end (delta: 568.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:07:56,455 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 38.7 MB in the beginning and 38.6 MB in the end (delta: 41.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 167.72 ms. Allocated memory is still 56.6 MB. Free memory was 35.1 MB in the beginning and 39.8 MB in the end (delta: -4.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.42 ms. Allocated memory is still 56.6 MB. Free memory was 39.8 MB in the beginning and 38.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.96 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 37.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 341.05 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 37.1 MB in the beginning and 57.2 MB in the end (delta: -20.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 201.43 ms. Allocated memory is still 77.6 MB. Free memory was 56.9 MB in the beginning and 43.2 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 2.92 ms. Allocated memory is still 77.6 MB. Free memory was 43.2 MB in the beginning and 42.6 MB in the end (delta: 568.7 kB). There was no memory consumed. 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: 15]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 5. Possible FailurePath: [L5] const float plus_infinity = 1.0f/0.0f; [L6] const float minus_infinity = 0.0f/-0.0f; [L7] const float NaN = 0.0f * (1.0f/0.0f); [L11] _Bool temp; [L14] temp = NaN < plus_infinity [L15] COND TRUE !(!temp) [L15] reach_error() - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 21]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 30]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 153.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 16.5ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.6ms SsaConstructionTime, 33.1ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 00:07:56,483 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 00:07:58,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:07:58,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:07:58,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:07:58,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:07:58,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:07:58,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:07:58,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:07:58,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:07:58,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:07:58,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:07:58,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:07:58,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:07:58,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:07:58,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:07:58,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:07:58,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:07:58,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:07:58,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:07:58,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:07:58,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:07:58,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:07:58,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:07:58,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:07:58,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-26 00:07:58,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:07:58,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:07:58,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:07:58,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:07:58,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:07:58,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:07:58,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:07:58,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:07:58,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:07:58,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:07:58,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:07:58,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 00:07:58,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:07:58,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:07:58,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:07:58,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:07:58,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:07:58,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:07:58,310 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:07:58,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:07:58,310 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:07:58,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:07:58,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:07:58,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:07:58,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:07:58,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:07:58,312 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 00:07:58,312 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 00:07:58,312 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:07:58,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:07:58,312 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:07:58,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:07:58,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:07:58,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:07:58,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:07:58,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:07:58,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:07:58,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:07:58,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:07:58,314 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 00:07:58,314 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 00:07:58,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:07:58,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:07:58,314 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 00:07:58,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 [2021-08-26 00:07:58,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:07:58,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:07:58,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:07:58,595 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:07:58,596 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:07:58,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float13.c [2021-08-26 00:07:58,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb451ec3/65132d256130451086be16c2a0f214c1/FLAG574685cd0 [2021-08-26 00:07:58,985 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:07:58,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float13.c [2021-08-26 00:07:58,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb451ec3/65132d256130451086be16c2a0f214c1/FLAG574685cd0 [2021-08-26 00:07:59,002 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb451ec3/65132d256130451086be16c2a0f214c1 [2021-08-26 00:07:59,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:07:59,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:07:59,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:07:59,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:07:59,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:07:59,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:07:59" (1/1) ... [2021-08-26 00:07:59,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a5d71f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59, skipping insertion in model container [2021-08-26 00:07:59,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:07:59" (1/1) ... [2021-08-26 00:07:59,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:07:59,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:07:59,155 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/floats-cbmc-regression/float13.c[497,510] [2021-08-26 00:07:59,160 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/floats-cbmc-regression/float13.c[569,582] [2021-08-26 00:07:59,162 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/floats-cbmc-regression/float13.c[631,644] [2021-08-26 00:07:59,163 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/floats-cbmc-regression/float13.c[693,706] [2021-08-26 00:07:59,164 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/floats-cbmc-regression/float13.c[764,777] [2021-08-26 00:07:59,165 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/floats-cbmc-regression/float13.c[836,849] [2021-08-26 00:07:59,167 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/floats-cbmc-regression/float13.c[895,908] [2021-08-26 00:07:59,168 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/floats-cbmc-regression/float13.c[954,967] [2021-08-26 00:07:59,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:07:59,180 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:07:59,199 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/floats-cbmc-regression/float13.c[497,510] [2021-08-26 00:07:59,201 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/floats-cbmc-regression/float13.c[569,582] [2021-08-26 00:07:59,202 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/floats-cbmc-regression/float13.c[631,644] [2021-08-26 00:07:59,203 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/floats-cbmc-regression/float13.c[693,706] [2021-08-26 00:07:59,204 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/floats-cbmc-regression/float13.c[764,777] [2021-08-26 00:07:59,205 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/floats-cbmc-regression/float13.c[836,849] [2021-08-26 00:07:59,206 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/floats-cbmc-regression/float13.c[895,908] [2021-08-26 00:07:59,207 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/floats-cbmc-regression/float13.c[954,967] [2021-08-26 00:07:59,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:07:59,232 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:07:59,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59 WrapperNode [2021-08-26 00:07:59,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:07:59,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:07:59,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:07:59,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:07:59,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59" (1/1) ... [2021-08-26 00:07:59,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59" (1/1) ... [2021-08-26 00:07:59,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:07:59,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:07:59,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:07:59,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:07:59,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59" (1/1) ... [2021-08-26 00:07:59,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59" (1/1) ... [2021-08-26 00:07:59,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59" (1/1) ... [2021-08-26 00:07:59,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59" (1/1) ... [2021-08-26 00:07:59,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59" (1/1) ... [2021-08-26 00:07:59,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59" (1/1) ... [2021-08-26 00:07:59,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59" (1/1) ... [2021-08-26 00:07:59,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:07:59,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:07:59,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:07:59,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:07:59,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59" (1/1) ... [2021-08-26 00:07:59,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:07:59,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:07:59,335 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 00:07:59,340 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 00:07:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:07:59,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:07:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 00:07:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:07:59,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:07:59,608 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-26 00:07:59,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:07:59 BoogieIcfgContainer [2021-08-26 00:07:59,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:07:59,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:07:59,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:07:59,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:07:59,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:07:59" (1/3) ... [2021-08-26 00:07:59,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ada11a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:07:59, skipping insertion in model container [2021-08-26 00:07:59,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:59" (2/3) ... [2021-08-26 00:07:59,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ada11a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:07:59, skipping insertion in model container [2021-08-26 00:07:59,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:07:59" (3/3) ... [2021-08-26 00:07:59,630 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2021-08-26 00:07:59,633 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:07:59,633 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-08-26 00:07:59,695 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:07:59,699 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 00:07:59,700 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-08-26 00:07:59,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 36 states have internal predecessors, (44), 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 00:07:59,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-26 00:07:59,713 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:07:59,713 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-26 00:07:59,714 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-26 00:07:59,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:07:59,721 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-08-26 00:07:59,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:07:59,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639404135] [2021-08-26 00:07:59,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:07:59,729 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:07:59,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:07:59,769 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 00:07:59,776 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 00:07:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 00:07:59,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-26 00:07:59,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:07:59,933 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 00:07:59,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:07:59,997 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 00:07:59,998 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:07:59,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639404135] [2021-08-26 00:07:59,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639404135] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:07:59,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:07:59,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-26 00:08:00,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352518947] [2021-08-26 00:08:00,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 00:08:00,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:08:00,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 00:08:00,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-26 00:08:00,012 INFO L87 Difference]: Start difference. First operand has 37 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 36 states have internal predecessors, (44), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 00:08:00,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:08:00,112 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2021-08-26 00:08:00,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 00:08:00,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 4 [2021-08-26 00:08:00,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:08:00,117 INFO L225 Difference]: With dead ends: 55 [2021-08-26 00:08:00,117 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 00:08:00,118 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 67.3ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:08:00,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 00:08:00,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 00:08:00,131 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 00:08:00,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 00:08:00,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-08-26 00:08:00,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:08:00,133 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 00:08:00,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 00:08:00,133 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 00:08:00,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 00:08:00,135 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:08:00,135 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:08:00,135 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:08:00,135 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:08:00,135 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:08:00,136 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:08:00,136 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:08:00,136 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:08:00,146 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 00:08:00,344 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 00:08:00,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 00:08:00,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 00:08:00,380 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2021-08-26 00:08:00,380 INFO L857 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-08-26 00:08:00,380 INFO L857 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-08-26 00:08:00,380 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-08-26 00:08:00,380 INFO L857 garLoopResultBuilder]: For program point L27-3(line 27) no Hoare annotation was computed. [2021-08-26 00:08:00,380 INFO L857 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-08-26 00:08:00,381 INFO L857 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-08-26 00:08:00,381 INFO L857 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2021-08-26 00:08:00,381 INFO L857 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-08-26 00:08:00,381 INFO L857 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-08-26 00:08:00,381 INFO L857 garLoopResultBuilder]: For program point L36-3(line 36) no Hoare annotation was computed. [2021-08-26 00:08:00,381 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 00:08:00,381 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 27) no Hoare annotation was computed. [2021-08-26 00:08:00,382 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 00:08:00,382 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 00:08:00,382 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-08-26 00:08:00,382 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-08-26 00:08:00,382 INFO L857 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-08-26 00:08:00,382 INFO L857 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2021-08-26 00:08:00,382 INFO L857 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2021-08-26 00:08:00,382 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 00:08:00,383 INFO L857 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2021-08-26 00:08:00,383 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2021-08-26 00:08:00,383 INFO L857 garLoopResultBuilder]: For program point L33-3(line 33) no Hoare annotation was computed. [2021-08-26 00:08:00,383 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2021-08-26 00:08:00,383 INFO L857 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-08-26 00:08:00,383 INFO L857 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-08-26 00:08:00,383 INFO L857 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-08-26 00:08:00,384 INFO L853 garLoopResultBuilder]: At program point L38(lines 9 39) the Hoare annotation is: (and (= ULTIMATE.start_main_~temp~0 (_ bv0 8)) (exists ((currentRoundingMode RoundingMode)) (= ~NaN~0 (fp.mul currentRoundingMode (_ +zero 8 24) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))))) [2021-08-26 00:08:00,384 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2021-08-26 00:08:00,384 INFO L857 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-08-26 00:08:00,384 INFO L857 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2021-08-26 00:08:00,384 INFO L857 garLoopResultBuilder]: For program point L30-3(line 30) no Hoare annotation was computed. [2021-08-26 00:08:00,385 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2021-08-26 00:08:00,385 INFO L857 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2021-08-26 00:08:00,385 INFO L857 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-08-26 00:08:00,385 INFO L857 garLoopResultBuilder]: For program point L18-3(line 18) no Hoare annotation was computed. [2021-08-26 00:08:00,388 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:08:00,392 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 00:08:00,392 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 00:08:00,392 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 00:08:00,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 00:08:00,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 00:08:00,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 00:08:00,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:08:00 BoogieIcfgContainer [2021-08-26 00:08:00,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:08:00,398 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:08:00,398 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:08:00,398 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:08:00,399 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:07:59" (3/4) ... [2021-08-26 00:08:00,401 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 00:08:00,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-08-26 00:08:00,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-08-26 00:08:00,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 00:08:00,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 00:08:00,422 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: temp == 0bv8 && (\exists currentRoundingMode : FloatRoundingMode :: NaN == ~fp.mul~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) [2021-08-26 00:08:00,429 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 00:08:00,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:08:00,431 INFO L168 Benchmark]: Toolchain (without parser) took 1424.39 ms. Allocated memory was 50.3 MB in the beginning and 71.3 MB in the end (delta: 21.0 MB). Free memory was 25.3 MB in the beginning and 34.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-08-26 00:08:00,431 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory is still 31.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:08:00,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.20 ms. Allocated memory was 50.3 MB in the beginning and 71.3 MB in the end (delta: 21.0 MB). Free memory was 25.1 MB in the beginning and 53.6 MB in the end (delta: -28.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:08:00,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.68 ms. Allocated memory is still 71.3 MB. Free memory was 53.6 MB in the beginning and 51.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:08:00,432 INFO L168 Benchmark]: Boogie Preprocessor took 35.79 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 50.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:08:00,432 INFO L168 Benchmark]: RCFGBuilder took 320.97 ms. Allocated memory is still 71.3 MB. Free memory was 50.7 MB in the beginning and 35.8 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-26 00:08:00,432 INFO L168 Benchmark]: TraceAbstraction took 771.79 ms. Allocated memory is still 71.3 MB. Free memory was 35.5 MB in the beginning and 37.3 MB in the end (delta: -1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:08:00,433 INFO L168 Benchmark]: Witness Printer took 31.73 ms. Allocated memory is still 71.3 MB. Free memory was 37.3 MB in the beginning and 34.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 00:08:00,434 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 50.3 MB. Free memory is still 31.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 225.20 ms. Allocated memory was 50.3 MB in the beginning and 71.3 MB in the end (delta: 21.0 MB). Free memory was 25.1 MB in the beginning and 53.6 MB in the end (delta: -28.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.68 ms. Allocated memory is still 71.3 MB. Free memory was 53.6 MB in the beginning and 51.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.79 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 50.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 320.97 ms. Allocated memory is still 71.3 MB. Free memory was 50.7 MB in the beginning and 35.8 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 771.79 ms. Allocated memory is still 71.3 MB. Free memory was 35.5 MB in the beginning and 37.3 MB in the end (delta: -1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 31.73 ms. Allocated memory is still 71.3 MB. Free memory was 37.3 MB in the beginning and 34.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 24]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 27]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 30]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 33]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 36]: 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, 37 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 695.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.0ms, AutomataDifference: 114.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 34.6ms, InitialAbstractionConstructionTime: 7.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 35 SDslu, 1 SDs, 0 SdLazy, 16 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 53.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 67.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 16 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 20.6ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 9.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 7.0ms SsaConstructionTime, 18.6ms SatisfiabilityAnalysisTime, 149.8ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 25 SizeOfPredicates, 4 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 8 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant [2021-08-26 00:08:00,439 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 00:08:00,439 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 00:08:00,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 00:08:00,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 00:08:00,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 00:08:00,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: temp == 0bv8 && (\exists currentRoundingMode : FloatRoundingMode :: NaN == ~fp.mul~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) RESULT: Ultimate proved your program to be correct! [2021-08-26 00:08:00,463 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...