/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/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:29:12,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:29:12,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:29:12,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:29:12,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:29:12,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:29:12,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:29:12,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:29:12,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:29:12,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:29:12,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:29:12,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:29:12,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:29:12,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:29:12,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:29:12,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:29:12,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 01:29:12,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:29:12,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:29:12,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:29:12,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:29:12,298 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:29:12,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:29:12,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:29:12,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:29:12,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:29:12,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:29:12,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:29:12,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:29:12,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:29:12,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:29:12,305 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:29:12,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:29:12,306 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:29:12,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:29:12,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:29:12,307 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:29:12,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:29:12,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:29:12,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:29:12,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:29:12,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:29:12,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:29:12,309 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:29:12,309 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:29:12,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:29:12,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:29:12,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:29:12,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:29:12,701 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:29:12,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float11.c [2021-02-22 01:29:12,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b85066d4/dce6e22d656e4fecb1c398bcfb444d99/FLAGdd7a58dd6 [2021-02-22 01:29:13,437 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:29:13,438 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c [2021-02-22 01:29:13,449 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b85066d4/dce6e22d656e4fecb1c398bcfb444d99/FLAGdd7a58dd6 [2021-02-22 01:29:13,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b85066d4/dce6e22d656e4fecb1c398bcfb444d99 [2021-02-22 01:29:13,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:29:13,808 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:29:13,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:29:13,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:29:13,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:29:13,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:29:13" (1/1) ... [2021-02-22 01:29:13,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3af1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:13, skipping insertion in model container [2021-02-22 01:29:13,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:29:13" (1/1) ... [2021-02-22 01:29:13,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:29:13,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:29:13,987 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[300,313] [2021-02-22 01:29:13,990 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[343,356] [2021-02-22 01:29:13,991 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[388,401] [2021-02-22 01:29:13,992 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[430,443] [2021-02-22 01:29:13,993 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[473,486] [2021-02-22 01:29:13,993 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[518,531] [2021-02-22 01:29:13,994 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[564,577] [2021-02-22 01:29:13,995 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[609,622] [2021-02-22 01:29:13,996 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[652,665] [2021-02-22 01:29:13,997 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[715,728] [2021-02-22 01:29:13,998 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[760,773] [2021-02-22 01:29:13,998 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[807,820] [2021-02-22 01:29:13,999 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[851,864] [2021-02-22 01:29:14,000 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[896,909] [2021-02-22 01:29:14,001 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[943,956] [2021-02-22 01:29:14,002 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[991,1004] [2021-02-22 01:29:14,003 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[1038,1051] [2021-02-22 01:29:14,004 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[1083,1096] [2021-02-22 01:29:14,005 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[1145,1158] [2021-02-22 01:29:14,006 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[1188,1201] [2021-02-22 01:29:14,007 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[1232,1245] [2021-02-22 01:29:14,007 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[1276,1289] [2021-02-22 01:29:14,013 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] [2021-02-22 01:29:14,014 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] [2021-02-22 01:29:14,015 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] [2021-02-22 01:29:14,016 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] [2021-02-22 01:29:14,017 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] [2021-02-22 01:29:14,018 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] [2021-02-22 01:29:14,018 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] [2021-02-22 01:29:14,019 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] [2021-02-22 01:29:14,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:29:14,032 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:29:14,047 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[300,313] [2021-02-22 01:29:14,048 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[343,356] [2021-02-22 01:29:14,049 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[388,401] [2021-02-22 01:29:14,049 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[430,443] [2021-02-22 01:29:14,050 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[473,486] [2021-02-22 01:29:14,051 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[518,531] [2021-02-22 01:29:14,051 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[564,577] [2021-02-22 01:29:14,052 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[609,622] [2021-02-22 01:29:14,053 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[652,665] [2021-02-22 01:29:14,054 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[715,728] [2021-02-22 01:29:14,054 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[760,773] [2021-02-22 01:29:14,055 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[807,820] [2021-02-22 01:29:14,056 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[851,864] [2021-02-22 01:29:14,057 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[896,909] [2021-02-22 01:29:14,058 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[943,956] [2021-02-22 01:29:14,059 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[991,1004] [2021-02-22 01:29:14,059 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[1038,1051] [2021-02-22 01:29:14,060 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[1083,1096] [2021-02-22 01:29:14,061 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[1145,1158] [2021-02-22 01:29:14,062 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[1188,1201] [2021-02-22 01:29:14,063 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[1232,1245] [2021-02-22 01:29:14,063 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[1276,1289] [2021-02-22 01:29:14,064 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[1314,1327] [2021-02-22 01:29:14,065 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[1352,1365] [2021-02-22 01:29:14,066 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] [2021-02-22 01:29:14,066 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] [2021-02-22 01:29:14,067 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] [2021-02-22 01:29:14,068 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] [2021-02-22 01:29:14,069 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] [2021-02-22 01:29:14,070 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] [2021-02-22 01:29:14,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:29:14,087 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:29:14,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:14 WrapperNode [2021-02-22 01:29:14,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:29:14,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:29:14,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:29:14,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:29:14,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:14" (1/1) ... [2021-02-22 01:29:14,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:14" (1/1) ... [2021-02-22 01:29:14,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:14" (1/1) ... [2021-02-22 01:29:14,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:14" (1/1) ... [2021-02-22 01:29:14,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:14" (1/1) ... [2021-02-22 01:29:14,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:14" (1/1) ... [2021-02-22 01:29:14,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:14" (1/1) ... [2021-02-22 01:29:14,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:29:14,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:29:14,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:29:14,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:29:14,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:14" (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 [2021-02-22 01:29:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:29:14,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:29:14,238 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:29:14,238 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:29:14,238 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:29:14,239 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:29:14,239 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:29:14,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:29:14,239 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:29:14,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:29:14,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:29:14,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:29:14,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:29:14,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:29:14,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:29:15,006 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:29:15,006 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 01:29:15,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:29:15 BoogieIcfgContainer [2021-02-22 01:29:15,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:29:15,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:29:15,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:29:15,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:29:15,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:29:13" (1/3) ... [2021-02-22 01:29:15,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5910ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:29:15, skipping insertion in model container [2021-02-22 01:29:15,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:14" (2/3) ... [2021-02-22 01:29:15,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5910ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:29:15, skipping insertion in model container [2021-02-22 01:29:15,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:29:15" (3/3) ... [2021-02-22 01:29:15,022 INFO L111 eAbstractionObserver]: Analyzing ICFG float11.c [2021-02-22 01:29:15,029 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:29:15,034 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2021-02-22 01:29:15,053 INFO L253 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-02-22 01:29:15,079 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:29:15,079 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:29:15,079 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:29:15,080 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:29:15,080 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:29:15,080 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:29:15,080 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:29:15,080 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:29:15,100 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2021-02-22 01:29:15,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-22 01:29:15,109 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:29:15,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:29:15,110 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]=== [2021-02-22 01:29:15,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:29:15,117 INFO L82 PathProgramCache]: Analyzing trace with hash -481997236, now seen corresponding path program 1 times [2021-02-22 01:29:15,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:29:15,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870748938] [2021-02-22 01:29:15,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:29:15,206 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:29:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:29:15,264 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:29:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:29:15,289 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:29:15,317 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 01:29:15,317 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 01:29:15,318 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:29:15,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:29:15 BoogieIcfgContainer [2021-02-22 01:29:15,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:29:15,341 INFO L168 Benchmark]: Toolchain (without parser) took 1541.02 ms. Allocated memory is still 174.1 MB. Free memory was 149.9 MB in the beginning and 129.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:15,342 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 174.1 MB. Free memory is still 150.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:29:15,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.83 ms. Allocated memory is still 174.1 MB. Free memory was 148.7 MB in the beginning and 134.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:15,344 INFO L168 Benchmark]: Boogie Preprocessor took 45.59 ms. Allocated memory is still 174.1 MB. Free memory was 134.9 MB in the beginning and 133.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:15,344 INFO L168 Benchmark]: RCFGBuilder took 874.64 ms. Allocated memory is still 174.1 MB. Free memory was 133.0 MB in the beginning and 144.0 MB in the end (delta: -11.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:15,345 INFO L168 Benchmark]: TraceAbstraction took 325.70 ms. Allocated memory is still 174.1 MB. Free memory was 143.5 MB in the beginning and 129.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:15,349 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 174.1 MB. Free memory is still 150.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 277.83 ms. Allocated memory is still 174.1 MB. Free memory was 148.7 MB in the beginning and 134.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.59 ms. Allocated memory is still 174.1 MB. Free memory was 134.9 MB in the beginning and 133.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 874.64 ms. Allocated memory is still 174.1 MB. Free memory was 133.0 MB in the beginning and 144.0 MB in the end (delta: -11.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 325.70 ms. Allocated memory is still 174.1 MB. Free memory was 143.5 MB in the beginning and 129.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 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, 139 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=136occurred 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: No data available, 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...