/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/float6.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:29:48,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:29:48,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:29:48,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:29:48,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:29:48,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:29:48,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:29:48,933 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 01:29:48,946 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:29:48,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:29:48,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:29:48,948 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:29:48,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:29:48,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:29:48,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:29:48,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:29:48,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:29:48,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:29:48,949 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:29:48,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:29:48,949 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:29:48,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:29:48,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:29:48,950 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:29:48,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:29:48,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:29:48,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:29:48,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:29:48,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:29:48,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:29:48,951 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:29:48,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:29:49,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:29:49,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:29:49,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:29:49,331 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:29:49,332 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:29:49,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float6.c [2021-02-22 01:29:49,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62206c117/410ff12e6ee64cad8b11b86fcc0b1f3a/FLAG9917efeb0 [2021-02-22 01:29:49,967 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:29:49,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float6.c [2021-02-22 01:29:49,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62206c117/410ff12e6ee64cad8b11b86fcc0b1f3a/FLAG9917efeb0 [2021-02-22 01:29:50,333 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62206c117/410ff12e6ee64cad8b11b86fcc0b1f3a [2021-02-22 01:29:50,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:29:50,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:29:50,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:29:50,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:29:50,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:29:50,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:29:50" (1/1) ... [2021-02-22 01:29:50,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2572c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:50, skipping insertion in model container [2021-02-22 01:29:50,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:29:50" (1/1) ... [2021-02-22 01:29:50,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:29:50,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:29:50,552 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/float6.c[369,382] [2021-02-22 01:29:50,556 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/float6.c[412,425] [2021-02-22 01:29:50,557 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/float6.c[454,467] [2021-02-22 01:29:50,558 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/float6.c[501,514] [2021-02-22 01:29:50,558 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/float6.c[543,556] [2021-02-22 01:29:50,559 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/float6.c[590,603] [2021-02-22 01:29:50,560 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/float6.c[635,648] [2021-02-22 01:29:50,561 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/float6.c[682,695] [2021-02-22 01:29:50,562 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/float6.c[727,740] [2021-02-22 01:29:50,563 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/float6.c[774,787] [2021-02-22 01:29:50,563 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/float6.c[817,830] [2021-02-22 01:29:50,564 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/float6.c[862,875] [2021-02-22 01:29:50,565 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/float6.c[905,918] [2021-02-22 01:29:50,566 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/float6.c[950,963] [2021-02-22 01:29:50,566 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/float6.c[993,1006] [2021-02-22 01:29:50,567 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/float6.c[1041,1054] [2021-02-22 01:29:50,568 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/float6.c[1084,1097] [2021-02-22 01:29:50,569 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/float6.c[1132,1145] [2021-02-22 01:29:50,573 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/float6.c[1291,1304] [2021-02-22 01:29:50,574 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/float6.c[1330,1343] [2021-02-22 01:29:50,575 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/float6.c[1368,1381] [2021-02-22 01:29:50,576 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/float6.c[1411,1424] [2021-02-22 01:29:50,576 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/float6.c[1449,1462] [2021-02-22 01:29:50,577 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/float6.c[1492,1505] [2021-02-22 01:29:50,578 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/float6.c[1533,1546] [2021-02-22 01:29:50,579 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/float6.c[1576,1589] [2021-02-22 01:29:50,580 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/float6.c[1617,1630] [2021-02-22 01:29:50,581 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/float6.c[1660,1673] [2021-02-22 01:29:50,581 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/float6.c[1699,1712] [2021-02-22 01:29:50,582 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/float6.c[1740,1753] [2021-02-22 01:29:50,583 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/float6.c[1779,1792] [2021-02-22 01:29:50,584 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/float6.c[1820,1833] [2021-02-22 01:29:50,585 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/float6.c[1859,1872] [2021-02-22 01:29:50,586 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/float6.c[1903,1916] [2021-02-22 01:29:50,587 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/float6.c[1942,1955] [2021-02-22 01:29:50,590 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/float6.c[1986,1999] [2021-02-22 01:29:50,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:29:50,606 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:29:50,620 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/float6.c[369,382] [2021-02-22 01:29:50,621 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/float6.c[412,425] [2021-02-22 01:29:50,621 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/float6.c[454,467] [2021-02-22 01:29:50,622 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/float6.c[501,514] [2021-02-22 01:29:50,623 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/float6.c[543,556] [2021-02-22 01:29:50,624 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/float6.c[590,603] [2021-02-22 01:29:50,624 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/float6.c[635,648] [2021-02-22 01:29:50,625 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/float6.c[682,695] [2021-02-22 01:29:50,626 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/float6.c[727,740] [2021-02-22 01:29:50,629 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/float6.c[774,787] [2021-02-22 01:29:50,630 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/float6.c[817,830] [2021-02-22 01:29:50,634 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/float6.c[862,875] [2021-02-22 01:29:50,635 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/float6.c[905,918] [2021-02-22 01:29:50,636 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/float6.c[950,963] [2021-02-22 01:29:50,636 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/float6.c[993,1006] [2021-02-22 01:29:50,637 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/float6.c[1041,1054] [2021-02-22 01:29:50,638 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/float6.c[1084,1097] [2021-02-22 01:29:50,638 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/float6.c[1132,1145] [2021-02-22 01:29:50,643 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/float6.c[1291,1304] [2021-02-22 01:29:50,644 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/float6.c[1330,1343] [2021-02-22 01:29:50,644 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/float6.c[1368,1381] [2021-02-22 01:29:50,645 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/float6.c[1411,1424] [2021-02-22 01:29:50,646 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/float6.c[1449,1462] [2021-02-22 01:29:50,647 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/float6.c[1492,1505] [2021-02-22 01:29:50,647 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/float6.c[1533,1546] [2021-02-22 01:29:50,648 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/float6.c[1576,1589] [2021-02-22 01:29:50,649 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/float6.c[1617,1630] [2021-02-22 01:29:50,649 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/float6.c[1660,1673] [2021-02-22 01:29:50,650 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/float6.c[1699,1712] [2021-02-22 01:29:50,651 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/float6.c[1740,1753] [2021-02-22 01:29:50,651 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/float6.c[1779,1792] [2021-02-22 01:29:50,652 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/float6.c[1820,1833] [2021-02-22 01:29:50,653 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/float6.c[1859,1872] [2021-02-22 01:29:50,653 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/float6.c[1903,1916] [2021-02-22 01:29:50,654 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/float6.c[1942,1955] [2021-02-22 01:29:50,655 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/float6.c[1986,1999] [2021-02-22 01:29:50,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:29:50,673 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:29:50,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:50 WrapperNode [2021-02-22 01:29:50,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:29:50,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:29:50,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:29:50,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:29:50,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:50" (1/1) ... [2021-02-22 01:29:50,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:50" (1/1) ... [2021-02-22 01:29:50,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:50" (1/1) ... [2021-02-22 01:29:50,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:50" (1/1) ... [2021-02-22 01:29:50,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:50" (1/1) ... [2021-02-22 01:29:50,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:50" (1/1) ... [2021-02-22 01:29:50,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:50" (1/1) ... [2021-02-22 01:29:50,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:29:50,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:29:50,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:29:50,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:29:50,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:50" (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 01:29:50,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:29:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:29:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:29:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:29:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:29:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:29:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:29:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:29:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2021-02-22 01:29:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:29:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:29:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:29:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:29:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:29:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:29:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:29:51,397 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:29:51,397 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 01:29:51,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:29:51 BoogieIcfgContainer [2021-02-22 01:29:51,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:29:51,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:29:51,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:29:51,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:29:51,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:29:50" (1/3) ... [2021-02-22 01:29:51,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7708f9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:29:51, skipping insertion in model container [2021-02-22 01:29:51,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:50" (2/3) ... [2021-02-22 01:29:51,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7708f9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:29:51, skipping insertion in model container [2021-02-22 01:29:51,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:29:51" (3/3) ... [2021-02-22 01:29:51,413 INFO L111 eAbstractionObserver]: Analyzing ICFG float6.c [2021-02-22 01:29:51,421 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:29:51,426 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2021-02-22 01:29:51,447 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-02-22 01:29:51,499 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:29:51,499 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:29:51,499 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:29:51,499 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:29:51,499 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:29:51,499 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:29:51,500 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:29:51,500 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:29:51,542 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2021-02-22 01:29:51,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-22 01:29:51,555 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:29:51,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:29:51,558 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr30ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr35ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr32ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr33ASSERT_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, mainErr31ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr34ASSERT_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 01:29:51,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:29:51,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1018429387, now seen corresponding path program 1 times [2021-02-22 01:29:51,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:29:51,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706596651] [2021-02-22 01:29:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:29:51,674 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:29:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:29:51,767 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:29:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:29:51,820 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:29:51,862 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 01:29:51,862 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 01:29:51,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:29:51,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:29:51 BoogieIcfgContainer [2021-02-22 01:29:51,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:29:51,889 INFO L168 Benchmark]: Toolchain (without parser) took 1541.69 ms. Allocated memory is still 160.4 MB. Free memory was 137.8 MB in the beginning and 113.3 MB in the end (delta: 24.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:51,891 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 160.4 MB. Free memory is still 132.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:29:51,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.20 ms. Allocated memory is still 160.4 MB. Free memory was 136.6 MB in the beginning and 121.5 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:51,896 INFO L168 Benchmark]: Boogie Preprocessor took 48.06 ms. Allocated memory is still 160.4 MB. Free memory was 121.5 MB in the beginning and 119.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:51,901 INFO L168 Benchmark]: RCFGBuilder took 677.24 ms. Allocated memory is still 160.4 MB. Free memory was 119.8 MB in the beginning and 127.5 MB in the end (delta: -7.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:51,902 INFO L168 Benchmark]: TraceAbstraction took 482.94 ms. Allocated memory is still 160.4 MB. Free memory was 127.0 MB in the beginning and 113.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:51,914 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 160.4 MB. Free memory is still 132.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 311.20 ms. Allocated memory is still 160.4 MB. Free memory was 136.6 MB in the beginning and 121.5 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 48.06 ms. Allocated memory is still 160.4 MB. Free memory was 121.5 MB in the beginning and 119.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 677.24 ms. Allocated memory is still 160.4 MB. Free memory was 119.8 MB in the beginning and 127.5 MB in the end (delta: -7.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 482.94 ms. Allocated memory is still 160.4 MB. Free memory was 127.0 MB in the beginning and 113.3 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: 9]: 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 9. Possible FailurePath: [L9] COND TRUE !(1.0!=2.0) [L9] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 169 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, 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=166occurred 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...