/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:14:31,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:14:31,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:14:31,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 00:14:31,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 00:14:31,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 00:14:32,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 00:14:32,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 00:14:32,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 00:14:32,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 00:14:32,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 00:14:32,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 00:14:32,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 00:14:32,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 00:14:32,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 00:14:32,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 00:14:32,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 00:14:32,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 00:14:32,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 00:14:32,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 00:14:32,032 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-22 00:14:32,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:14:32,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:14:32,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:14:32,048 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:14:32,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:14:32,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:14:32,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:14:32,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:14:32,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:14:32,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:14:32,050 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:14:32,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:14:32,051 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:14:32,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:14:32,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:14:32,051 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:14:32,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:14:32,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:14:32,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:14:32,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:14:32,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:14:32,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:14:32,053 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-22 00:14:32,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:14:32,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:14:32,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:14:32,584 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:14:32,585 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:14:32,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float11.c [2021-02-22 00:14:32,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14f51a47/09844cba413b4df0af450ba189cb83ed/FLAG5a22c24e0 [2021-02-22 00:14:33,373 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:14:33,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float11.c [2021-02-22 00:14:33,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14f51a47/09844cba413b4df0af450ba189cb83ed/FLAG5a22c24e0 [2021-02-22 00:14:33,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14f51a47/09844cba413b4df0af450ba189cb83ed [2021-02-22 00:14:33,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:14:33,783 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:14:33,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:14:33,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:14:33,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:14:33,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:14:33" (1/1) ... [2021-02-22 00:14:33,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb9ac6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:14:33, skipping insertion in model container [2021-02-22 00:14:33,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:14:33" (1/1) ... [2021-02-22 00:14:33,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:14:33,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:14:34,072 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 00:14:34,078 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 00:14:34,079 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 00:14:34,081 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 00:14:34,082 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 00:14:34,084 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 00:14:34,085 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 00:14:34,086 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 00:14:34,087 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 00:14:34,088 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 00:14:34,095 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 00:14:34,097 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 00:14:34,099 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 00:14:34,102 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 00:14:34,103 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 00:14:34,103 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 00:14:34,105 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 00:14:34,113 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 00:14:34,114 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 00:14:34,116 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 00:14:34,117 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 00:14:34,119 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 00:14:34,121 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 00:14:34,122 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 00:14:34,123 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 00:14:34,123 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 00:14:34,124 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 00:14:34,127 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 00:14:34,128 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 00:14:34,132 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 00:14:34,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:14:34,154 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:14:34,173 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 00:14:34,175 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 00:14:34,178 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 00:14:34,180 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 00:14:34,181 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 00:14:34,182 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 00:14:34,185 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 00:14:34,186 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 00:14:34,187 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 00:14:34,188 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 00:14:34,192 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 00:14:34,194 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 00:14:34,195 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 00:14:34,196 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 00:14:34,199 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 00:14:34,202 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 00:14:34,203 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 00:14:34,204 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 00:14:34,205 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 00:14:34,205 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 00:14:34,206 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 00:14:34,207 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 00:14:34,208 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 00:14:34,208 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 00:14:34,209 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 00:14:34,210 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 00:14:34,210 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 00:14:34,211 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 00:14:34,212 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 00:14:34,213 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 00:14:34,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:14:34,231 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:14:34,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:14:34 WrapperNode [2021-02-22 00:14:34,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:14:34,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:14:34,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:14:34,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:14:34,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:14:34" (1/1) ... [2021-02-22 00:14:34,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:14:34" (1/1) ... [2021-02-22 00:14:34,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:14:34" (1/1) ... [2021-02-22 00:14:34,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:14:34" (1/1) ... [2021-02-22 00:14:34,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:14:34" (1/1) ... [2021-02-22 00:14:34,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:14:34" (1/1) ... [2021-02-22 00:14:34,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:14:34" (1/1) ... [2021-02-22 00:14:34,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:14:34,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:14:34,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:14:34,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:14:34,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:14:34" (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 00:14:34,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:14:34,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:14:34,385 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:14:34,385 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:14:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:14:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:14:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:14:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:14:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:14:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:14:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:14:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:14:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:14:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:14:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:14:34,913 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:14:34,913 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 00:14:34,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:14:34 BoogieIcfgContainer [2021-02-22 00:14:34,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:14:34,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:14:34,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:14:34,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:14:34,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:14:33" (1/3) ... [2021-02-22 00:14:34,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a4a4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:14:34, skipping insertion in model container [2021-02-22 00:14:34,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:14:34" (2/3) ... [2021-02-22 00:14:34,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a4a4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:14:34, skipping insertion in model container [2021-02-22 00:14:34,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:14:34" (3/3) ... [2021-02-22 00:14:34,935 INFO L111 eAbstractionObserver]: Analyzing ICFG float11.c [2021-02-22 00:14:34,942 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:14:34,947 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2021-02-22 00:14:34,967 INFO L253 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-02-22 00:14:34,993 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:14:34,993 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:14:34,994 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-22 00:14:34,994 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:14:34,994 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:14:34,994 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:14:34,994 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:14:34,994 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:14:35,020 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2021-02-22 00:14:35,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-22 00:14:35,029 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:14:35,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:14:35,031 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 00:14:35,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:14:35,038 INFO L82 PathProgramCache]: Analyzing trace with hash -481997236, now seen corresponding path program 1 times [2021-02-22 00:14:35,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:14:35,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823739245] [2021-02-22 00:14:35,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:14:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:14:35,154 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:14:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:14:35,177 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:14:35,229 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 00:14:35,230 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 00:14:35,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:14:35,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 12:14:35 BoogieIcfgContainer [2021-02-22 00:14:35,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 00:14:35,289 INFO L168 Benchmark]: Toolchain (without parser) took 1517.82 ms. Allocated memory is still 167.8 MB. Free memory was 143.7 MB in the beginning and 113.7 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.2 MB. Max. memory is 8.0 GB. [2021-02-22 00:14:35,290 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 83.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:14:35,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.00 ms. Allocated memory is still 167.8 MB. Free memory was 142.6 MB in the beginning and 129.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-22 00:14:35,294 INFO L168 Benchmark]: Boogie Preprocessor took 43.97 ms. Allocated memory is still 167.8 MB. Free memory was 129.1 MB in the beginning and 127.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 00:14:35,298 INFO L168 Benchmark]: RCFGBuilder took 639.24 ms. Allocated memory is still 167.8 MB. Free memory was 127.3 MB in the beginning and 129.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 8.3 MB. Max. memory is 8.0 GB. [2021-02-22 00:14:35,302 INFO L168 Benchmark]: TraceAbstraction took 359.03 ms. Allocated memory is still 167.8 MB. Free memory was 128.8 MB in the beginning and 113.7 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-22 00:14:35,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 83.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 444.00 ms. Allocated memory is still 167.8 MB. Free memory was 142.6 MB in the beginning and 129.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.97 ms. Allocated memory is still 167.8 MB. Free memory was 129.1 MB in the beginning and 127.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 639.24 ms. Allocated memory is still 167.8 MB. Free memory was 127.3 MB in the beginning and 129.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 8.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 359.03 ms. Allocated memory is still 167.8 MB. Free memory was 128.8 MB in the beginning and 113.7 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 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...