/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 15:45:37,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 15:45:37,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 15:45:38,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 15:45:38,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 15:45:38,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 15:45:38,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 15:45:38,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 15:45:38,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 15:45:38,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 15:45:38,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 15:45:38,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-02-21 15:45:38,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 15:45:38,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 15:45:38,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 15:45:38,096 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-21 15:45:38,153 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 15:45:38,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 15:45:38,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 15:45:38,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 15:45:38,159 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 15:45:38,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 15:45:38,160 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 15:45:38,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 15:45:38,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 15:45:38,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 15:45:38,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 15:45:38,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 15:45:38,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 15:45:38,163 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 15:45:38,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 15:45:38,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 15:45:38,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 15:45:38,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 15:45:38,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 15:45:38,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 15:45:38,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 15:45:38,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 15:45:38,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 15:45:38,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 15:45:38,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 15:45:38,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 15:45:38,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 15:45:38,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 15:45:38,166 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 15:45:38,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 15:45:38,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 15:45:38,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 15:45:38,609 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 15:45:38,610 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 15:45:38,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float11.c [2021-02-21 15:45:38,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d352f9be2/89179673fe4e47709a25dfb925ba4c10/FLAG48bf788ea [2021-02-21 15:45:39,425 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 15:45:39,425 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c [2021-02-21 15:45:39,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d352f9be2/89179673fe4e47709a25dfb925ba4c10/FLAG48bf788ea [2021-02-21 15:45:39,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d352f9be2/89179673fe4e47709a25dfb925ba4c10 [2021-02-21 15:45:39,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 15:45:39,795 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 15:45:39,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 15:45:39,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 15:45:39,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 15:45:39,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:45:39" (1/1) ... [2021-02-21 15:45:39,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96ea498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:39, skipping insertion in model container [2021-02-21 15:45:39,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:45:39" (1/1) ... [2021-02-21 15:45:39,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 15:45:39,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 15:45:39,980 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[300,313] [2021-02-21 15:45:39,984 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[343,356] [2021-02-21 15:45:39,985 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[388,401] [2021-02-21 15:45:39,985 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[430,443] [2021-02-21 15:45:39,986 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[473,486] [2021-02-21 15:45:39,987 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[518,531] [2021-02-21 15:45:39,988 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[564,577] [2021-02-21 15:45:39,989 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[609,622] [2021-02-21 15:45:39,990 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[652,665] [2021-02-21 15:45:39,991 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[715,728] [2021-02-21 15:45:39,992 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[760,773] [2021-02-21 15:45:39,993 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[807,820] [2021-02-21 15:45:39,994 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[851,864] [2021-02-21 15:45:39,995 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[896,909] [2021-02-21 15:45:39,996 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[943,956] [2021-02-21 15:45:39,997 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[991,1004] [2021-02-21 15:45:39,998 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1038,1051] [2021-02-21 15:45:39,999 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1083,1096] [2021-02-21 15:45:40,000 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1145,1158] [2021-02-21 15:45:40,001 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1188,1201] [2021-02-21 15:45:40,002 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1232,1245] [2021-02-21 15:45:40,003 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1276,1289] [2021-02-21 15:45:40,004 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1314,1327] [2021-02-21 15:45:40,005 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1352,1365] [2021-02-21 15:45:40,006 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1391,1404] [2021-02-21 15:45:40,007 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1430,1443] [2021-02-21 15:45:40,008 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1482,1495] [2021-02-21 15:45:40,009 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1533,1546] [2021-02-21 15:45:40,010 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1583,1596] [2021-02-21 15:45:40,011 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1635,1648] [2021-02-21 15:45:40,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:45:40,025 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 15:45:40,041 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[300,313] [2021-02-21 15:45:40,042 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[343,356] [2021-02-21 15:45:40,042 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[388,401] [2021-02-21 15:45:40,043 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[430,443] [2021-02-21 15:45:40,044 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[473,486] [2021-02-21 15:45:40,045 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[518,531] [2021-02-21 15:45:40,045 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[564,577] [2021-02-21 15:45:40,046 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[609,622] [2021-02-21 15:45:40,047 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[652,665] [2021-02-21 15:45:40,048 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[715,728] [2021-02-21 15:45:40,049 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[760,773] [2021-02-21 15:45:40,049 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[807,820] [2021-02-21 15:45:40,050 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[851,864] [2021-02-21 15:45:40,051 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[896,909] [2021-02-21 15:45:40,052 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[943,956] [2021-02-21 15:45:40,053 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[991,1004] [2021-02-21 15:45:40,054 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1038,1051] [2021-02-21 15:45:40,055 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1083,1096] [2021-02-21 15:45:40,056 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1145,1158] [2021-02-21 15:45:40,057 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1188,1201] [2021-02-21 15:45:40,057 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1232,1245] [2021-02-21 15:45:40,058 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1276,1289] [2021-02-21 15:45:40,059 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1314,1327] [2021-02-21 15:45:40,060 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1352,1365] [2021-02-21 15:45:40,061 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1391,1404] [2021-02-21 15:45:40,062 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1430,1443] [2021-02-21 15:45:40,063 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1482,1495] [2021-02-21 15:45:40,064 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1533,1546] [2021-02-21 15:45:40,064 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1583,1596] [2021-02-21 15:45:40,065 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c[1635,1648] [2021-02-21 15:45:40,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:45:40,084 INFO L208 MainTranslator]: Completed translation [2021-02-21 15:45:40,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:40 WrapperNode [2021-02-21 15:45:40,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 15:45:40,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 15:45:40,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 15:45:40,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 15:45:40,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:40" (1/1) ... [2021-02-21 15:45:40,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:40" (1/1) ... [2021-02-21 15:45:40,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:40" (1/1) ... [2021-02-21 15:45:40,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:40" (1/1) ... [2021-02-21 15:45:40,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:40" (1/1) ... [2021-02-21 15:45:40,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:40" (1/1) ... [2021-02-21 15:45:40,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:40" (1/1) ... [2021-02-21 15:45:40,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 15:45:40,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 15:45:40,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 15:45:40,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 15:45:40,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 15:45:40,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 15:45:40,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 15:45:40,246 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 15:45:40,246 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 15:45:40,247 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 15:45:40,247 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 15:45:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 15:45:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 15:45:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 15:45:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 15:45:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 15:45:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 15:45:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 15:45:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 15:45:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 15:45:40,889 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 15:45:40,889 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-21 15:45:40,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:45:40 BoogieIcfgContainer [2021-02-21 15:45:40,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 15:45:40,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 15:45:40,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 15:45:40,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 15:45:40,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:45:39" (1/3) ... [2021-02-21 15:45:40,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191e1573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:45:40, skipping insertion in model container [2021-02-21 15:45:40,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:40" (2/3) ... [2021-02-21 15:45:40,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191e1573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:45:40, skipping insertion in model container [2021-02-21 15:45:40,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:45:40" (3/3) ... [2021-02-21 15:45:40,901 INFO L111 eAbstractionObserver]: Analyzing ICFG float11.c [2021-02-21 15:45:40,908 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 15:45:40,913 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2021-02-21 15:45:40,934 INFO L253 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-02-21 15:45:40,967 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 15:45:40,967 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 15:45:40,967 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 15:45:40,968 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 15:45:40,968 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 15:45:40,968 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 15:45:40,968 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 15:45:40,968 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 15:45:40,993 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states. [2021-02-21 15:45:40,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-02-21 15:45:40,998 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:45:40,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-02-21 15:45:41,000 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr29ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:45:41,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:45:41,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1426888806, now seen corresponding path program 1 times [2021-02-21 15:45:41,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:45:41,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73489261] [2021-02-21 15:45:41,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:45:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:45:41,153 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:45:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:45:41,200 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:45:41,239 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 15:45:41,241 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 15:45:41,241 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 15:45:41,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:45:41 BoogieIcfgContainer [2021-02-21 15:45:41,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 15:45:41,279 INFO L168 Benchmark]: Toolchain (without parser) took 1493.07 ms. Allocated memory is still 162.5 MB. Free memory was 137.9 MB in the beginning and 121.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 8.0 GB. [2021-02-21 15:45:41,280 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 162.5 MB. Free memory is still 134.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 15:45:41,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.79 ms. Allocated memory is still 162.5 MB. Free memory was 136.7 MB in the beginning and 122.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-21 15:45:41,284 INFO L168 Benchmark]: Boogie Preprocessor took 46.55 ms. Allocated memory is still 162.5 MB. Free memory was 122.7 MB in the beginning and 121.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 15:45:41,287 INFO L168 Benchmark]: RCFGBuilder took 757.91 ms. Allocated memory is still 162.5 MB. Free memory was 121.1 MB in the beginning and 134.8 MB in the end (delta: -13.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 8.0 GB. [2021-02-21 15:45:41,293 INFO L168 Benchmark]: TraceAbstraction took 381.01 ms. Allocated memory is still 162.5 MB. Free memory was 134.2 MB in the beginning and 121.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-21 15:45:41,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 162.5 MB. Free memory is still 134.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 288.79 ms. Allocated memory is still 162.5 MB. Free memory was 136.7 MB in the beginning and 122.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.55 ms. Allocated memory is still 162.5 MB. Free memory was 122.7 MB in the beginning and 121.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 757.91 ms. Allocated memory is still 162.5 MB. Free memory was 121.1 MB in the beginning and 134.8 MB in the end (delta: -13.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 381.01 ms. Allocated memory is still 162.5 MB. Free memory was 134.2 MB in the beginning and 121.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 7. Possible FailurePath: [L7] COND TRUE !(1.0<2.5) [L7] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 102 locations, 30 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 Received shutdown request...