/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/list-simple/sll2n_remove_all.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:01:26,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:01:26,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:01:26,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 02:01:26,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 02:01:26,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 02:01:26,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 02:01:26,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 02:01:26,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 02:01:26,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 02:01:26,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 02:01:26,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 02:01:26,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:01:26,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:01:26,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:01:26,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:01:26,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:01:26,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:01:26,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:01:26,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:01:26,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:01:26,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:01:26,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:01:26,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:01:26,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 02:01:26,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 02:01:26,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 02:01:26,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 02:01:26,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 02:01:26,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 02:01:26,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 02:01:26,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 02:01:26,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 02:01:26,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 02:01:26,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 02:01:26,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 02:01:26,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 02:01:26,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 02:01:26,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:01:26,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:01:26,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:01:26,247 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 02:01:26,259 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:01:26,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:01:26,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:01:26,261 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:01:26,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:01:26,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:01:26,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:01:26,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:01:26,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:01:26,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:01:26,263 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:01:26,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:01:26,263 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:01:26,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:01:26,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:01:26,264 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:01:26,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:01:26,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:01:26,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:01:26,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:01:26,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:01:26,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:01:26,265 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:01:26,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:01:26,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:01:26,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:01:26,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:01:26,685 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:01:26,686 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:01:26,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_remove_all.i [2021-02-22 02:01:26,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3631976a/3b28f489c38249cc99ce36dcf02495c7/FLAGd39fd4ab6 [2021-02-22 02:01:27,601 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:01:27,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_remove_all.i [2021-02-22 02:01:27,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3631976a/3b28f489c38249cc99ce36dcf02495c7/FLAGd39fd4ab6 [2021-02-22 02:01:27,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3631976a/3b28f489c38249cc99ce36dcf02495c7 [2021-02-22 02:01:27,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:01:27,851 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:01:27,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:01:27,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:01:27,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:01:27,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:01:27" (1/1) ... [2021-02-22 02:01:27,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9b8a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:01:27, skipping insertion in model container [2021-02-22 02:01:27,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:01:27" (1/1) ... [2021-02-22 02:01:27,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:01:27,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:01:28,200 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_remove_all.i[23806,23819] [2021-02-22 02:01:28,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:01:28,214 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:01:28,257 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_remove_all.i[23806,23819] [2021-02-22 02:01:28,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:01:28,332 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:01:28,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:01:28 WrapperNode [2021-02-22 02:01:28,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:01:28,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:01:28,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:01:28,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:01:28,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:01:28" (1/1) ... [2021-02-22 02:01:28,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:01:28" (1/1) ... [2021-02-22 02:01:28,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:01:28" (1/1) ... [2021-02-22 02:01:28,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:01:28" (1/1) ... [2021-02-22 02:01:28,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:01:28" (1/1) ... [2021-02-22 02:01:28,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:01:28" (1/1) ... [2021-02-22 02:01:28,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:01:28" (1/1) ... [2021-02-22 02:01:28,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:01:28,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:01:28,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:01:28,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:01:28,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:01:28" (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 02:01:28,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:01:28,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:01:28,502 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:01:28,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-02-22 02:01:28,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-02-22 02:01:28,502 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-02-22 02:01:28,503 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-02-22 02:01:28,503 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2021-02-22 02:01:28,503 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_remove_first [2021-02-22 02:01:28,503 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:01:28,503 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:01:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:01:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-22 02:01:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-22 02:01:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:01:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:01:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-02-22 02:01:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-02-22 02:01:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-22 02:01:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-22 02:01:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-22 02:01:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-22 02:01:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-22 02:01:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-22 02:01:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-22 02:01:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-22 02:01:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-22 02:01:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-22 02:01:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-22 02:01:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-22 02:01:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-22 02:01:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-22 02:01:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-22 02:01:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-22 02:01:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-22 02:01:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-22 02:01:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-22 02:01:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-22 02:01:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-22 02:01:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-22 02:01:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-22 02:01:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-22 02:01:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-22 02:01:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-22 02:01:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-22 02:01:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-22 02:01:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-22 02:01:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-22 02:01:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-22 02:01:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-22 02:01:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-22 02:01:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-22 02:01:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-22 02:01:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-22 02:01:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-22 02:01:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-22 02:01:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-22 02:01:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-22 02:01:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-22 02:01:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-22 02:01:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-22 02:01:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-22 02:01:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-22 02:01:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-22 02:01:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-22 02:01:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-22 02:01:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-22 02:01:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-22 02:01:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 02:01:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-22 02:01:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-22 02:01:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 02:01:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-22 02:01:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-22 02:01:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-22 02:01:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-22 02:01:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-22 02:01:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-22 02:01:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-22 02:01:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-22 02:01:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:01:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-22 02:01:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-22 02:01:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-22 02:01:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-22 02:01:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-22 02:01:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-22 02:01:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-22 02:01:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-22 02:01:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-22 02:01:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-22 02:01:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-22 02:01:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-22 02:01:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-22 02:01:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-22 02:01:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-22 02:01:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-22 02:01:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-22 02:01:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-22 02:01:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-22 02:01:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-22 02:01:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-22 02:01:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-22 02:01:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-22 02:01:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-22 02:01:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-22 02:01:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-22 02:01:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-22 02:01:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-22 02:01:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-22 02:01:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-22 02:01:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-22 02:01:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-22 02:01:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-22 02:01:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-22 02:01:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-22 02:01:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-22 02:01:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-22 02:01:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-22 02:01:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-22 02:01:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-02-22 02:01:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-02-22 02:01:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 02:01:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 02:01:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:01:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2021-02-22 02:01:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure sll_remove_first [2021-02-22 02:01:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 02:01:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:01:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:01:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-22 02:01:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:01:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:01:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:01:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:01:28,917 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-02-22 02:01:29,137 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:01:29,137 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-22 02:01:29,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:01:29 BoogieIcfgContainer [2021-02-22 02:01:29,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:01:29,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:01:29,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:01:29,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:01:29,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:01:27" (1/3) ... [2021-02-22 02:01:29,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3e6492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:01:29, skipping insertion in model container [2021-02-22 02:01:29,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:01:28" (2/3) ... [2021-02-22 02:01:29,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3e6492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:01:29, skipping insertion in model container [2021-02-22 02:01:29,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:01:29" (3/3) ... [2021-02-22 02:01:29,153 INFO L111 eAbstractionObserver]: Analyzing ICFG sll2n_remove_all.i [2021-02-22 02:01:29,165 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:01:29,170 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:01:29,200 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:01:29,225 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:01:29,225 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:01:29,225 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:01:29,225 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:01:29,225 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:01:29,226 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:01:29,226 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:01:29,226 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:01:29,243 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2021-02-22 02:01:29,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-22 02:01:29,253 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:01:29,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:01:29,255 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:01:29,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:01:29,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1688631558, now seen corresponding path program 1 times [2021-02-22 02:01:29,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:01:29,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462563058] [2021-02-22 02:01:29,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:01:29,362 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:01:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:01:29,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:29,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:29,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:29,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:29,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:01:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:01:29,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:29,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:29,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 02:01:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:01:29,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:29,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:29,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:29,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:29,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:01:29,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462563058] [2021-02-22 02:01:29,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:01:29,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:01:29,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706119964] [2021-02-22 02:01:29,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:01:29,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:01:29,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:01:29,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:01:29,662 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 4 states. [2021-02-22 02:01:29,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:01:29,940 INFO L93 Difference]: Finished difference Result 122 states and 132 transitions. [2021-02-22 02:01:29,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 02:01:29,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2021-02-22 02:01:29,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:01:29,972 INFO L225 Difference]: With dead ends: 122 [2021-02-22 02:01:29,973 INFO L226 Difference]: Without dead ends: 70 [2021-02-22 02:01:29,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:01:29,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-02-22 02:01:30,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2021-02-22 02:01:30,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2021-02-22 02:01:30,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2021-02-22 02:01:30,035 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 31 [2021-02-22 02:01:30,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:01:30,036 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2021-02-22 02:01:30,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:01:30,036 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2021-02-22 02:01:30,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-22 02:01:30,038 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:01:30,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:01:30,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:01:30,038 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:01:30,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:01:30,039 INFO L82 PathProgramCache]: Analyzing trace with hash 2117295844, now seen corresponding path program 1 times [2021-02-22 02:01:30,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:01:30,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915505624] [2021-02-22 02:01:30,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:01:30,047 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:01:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:01:30,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:30,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:01:30,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:30,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:01:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:01:30,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:30,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 02:01:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:01:30,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:01:30,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:01:30,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:01:30,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915505624] [2021-02-22 02:01:30,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:01:30,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 02:01:30,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957904339] [2021-02-22 02:01:30,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 02:01:30,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:01:30,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 02:01:30,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-22 02:01:30,355 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 7 states. [2021-02-22 02:01:30,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:01:30,743 INFO L93 Difference]: Finished difference Result 102 states and 105 transitions. [2021-02-22 02:01:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-22 02:01:30,744 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2021-02-22 02:01:30,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:01:30,746 INFO L225 Difference]: With dead ends: 102 [2021-02-22 02:01:30,746 INFO L226 Difference]: Without dead ends: 73 [2021-02-22 02:01:30,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-02-22 02:01:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-02-22 02:01:30,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 66. [2021-02-22 02:01:30,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-02-22 02:01:30,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2021-02-22 02:01:30,763 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 31 [2021-02-22 02:01:30,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:01:30,763 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2021-02-22 02:01:30,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 02:01:30,763 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2021-02-22 02:01:30,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-02-22 02:01:30,765 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:01:30,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:01:30,765 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:01:30,766 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:01:30,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:01:30,766 INFO L82 PathProgramCache]: Analyzing trace with hash 487225878, now seen corresponding path program 1 times [2021-02-22 02:01:30,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:01:30,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247742279] [2021-02-22 02:01:30,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:01:30,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:01:30,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:01:30,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 02:01:30,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:01:30,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:01:30,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:01:30,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 02:01:30,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:01:30,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:01:30,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:01:30,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 02:01:30,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:01:30,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:01:30,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:01:30,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:01:30,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 02:01:30,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 02:01:30,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:01:30,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:01:30,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:01:30,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:01:30,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-02-22 02:01:30,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-02-22 02:01:30,924 INFO L446 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_34|, |v_#memory_int_27|, |v_#memory_$Pointer$.base_34|], 1=[|v_#memory_int_34|]} [2021-02-22 02:01:30,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:01:30,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:30,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:30,938 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-22 02:01:30,961 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:01:30,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:30,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:30,969 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-22 02:01:30,985 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:01:30,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:30,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:30,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:30,993 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-22 02:01:31,004 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:31,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:31,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:01:31,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:31,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:31,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:31,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:01:31,011 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-22 02:01:31,020 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:31,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:31,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:01:31,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:01:31,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:01:31,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 02:01:31,026 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-22 02:01:31,027 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:84, output treesize:15 [2021-02-22 02:01:31,031 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: cannot bring into simultaneous update form, |v_#memory_$Pointer$.base_34| has neither invar nor outvar in [(= (store |v_#valid_33| v_sll_create_~new_head~0.base_4 1) |v_#valid_32|), (= (+ v_sll_create_~len_6 1) v_sll_create_~len_7), (= (store |v_#memory_$Pointer$.base_30| v_sll_create_~new_head~0.base_4 (store (store (select |v_#memory_$Pointer$.base_30| v_sll_create_~new_head~0.base_4) (+ v_sll_create_~new_head~0.offset_4 4) 0) v_sll_create_~new_head~0.offset_4 (select (select |v_#memory_$Pointer$.base_34| v_sll_create_~new_head~0.base_4) v_sll_create_~new_head~0.offset_4))) |v_#memory_$Pointer$.base_34|), (= |v_#memory_$Pointer$.base_28| (store |v_#memory_$Pointer$.base_34| v_sll_create_~new_head~0.base_4 (store (select |v_#memory_$Pointer$.base_34| v_sll_create_~new_head~0.base_4) (+ v_sll_create_~new_head~0.offset_4 4) v_sll_create_~head~0.base_6))), (= v_sll_create_~new_head~0.offset_4 v_sll_create_~head~0.offset_5), (= v_sll_create_~head~0.base_5 v_sll_create_~new_head~0.base_4), (< v_sll_create_~new_head~0.base_4 |v_#StackHeapBarrier_8|), (= (store |v_#memory_int_34| v_sll_create_~new_head~0.base_4 (let ((.cse0 (+ v_sll_create_~new_head~0.offset_4 4))) (store (store (select |v_#memory_int_34| v_sll_create_~new_head~0.base_4) v_sll_create_~new_head~0.offset_4 v_sll_create_~data_5) .cse0 (select (select |v_#memory_int_27| v_sll_create_~new_head~0.base_4) .cse0)))) |v_#memory_int_27|), (< 0 v_sll_create_~len_7), (= (store |v_#memory_$Pointer$.offset_34| v_sll_create_~new_head~0.base_4 (store (select |v_#memory_$Pointer$.offset_34| v_sll_create_~new_head~0.base_4) (+ v_sll_create_~new_head~0.offset_4 4) v_sll_create_~head~0.offset_6)) |v_#memory_$Pointer$.offset_28|), (= |v_#memory_int_34| (store |v_#memory_int_29| v_sll_create_~new_head~0.base_4 (let ((.cse0 (+ v_sll_create_~new_head~0.offset_4 4))) (store (select |v_#memory_int_29| v_sll_create_~new_head~0.base_4) .cse0 (select (select |v_#memory_int_34| v_sll_create_~new_head~0.base_4) .cse0))))), (= (store |v_#length_23| v_sll_create_~new_head~0.base_4 8) |v_#length_22|), (= (store |v_#memory_$Pointer$.offset_30| v_sll_create_~new_head~0.base_4 (store (store (select |v_#memory_$Pointer$.offset_30| v_sll_create_~new_head~0.base_4) (+ v_sll_create_~new_head~0.offset_4 4) 0) v_sll_create_~new_head~0.offset_4 (select (select |v_#memory_$Pointer$.offset_34| v_sll_create_~new_head~0.base_4) v_sll_create_~new_head~0.offset_4))) |v_#memory_$Pointer$.offset_34|), (= v_sll_create_~new_head~0.offset_4 0), (= (select |v_#valid_33| v_sll_create_~new_head~0.base_4) 0), (> v_sll_create_~new_head~0.base_4 0)] at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.computeSubstitutionMapping(SimultaneousUpdate.java:180) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.extractUpdateRhs(SimultaneousUpdate.java:154) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:104) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.werner.LoopAcceleratorLite.calculateSymbolicMemory(LoopAcceleratorLite.java:167) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.werner.LoopAcceleratorLite.summarizeLoop(LoopAcceleratorLite.java:105) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:52) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-22 02:01:31,035 INFO L168 Benchmark]: Toolchain (without parser) took 3195.63 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 135.8 MB in the beginning and 77.4 MB in the end (delta: 58.4 MB). Peak memory consumption was 91.8 MB. Max. memory is 8.0 GB. [2021-02-22 02:01:31,036 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 161.5 MB. Free memory was 140.1 MB in the beginning and 140.0 MB in the end (delta: 107.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:01:31,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.60 ms. Allocated memory is still 161.5 MB. Free memory was 134.6 MB in the beginning and 112.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-22 02:01:31,038 INFO L168 Benchmark]: Boogie Preprocessor took 63.43 ms. Allocated memory is still 161.5 MB. Free memory was 112.3 MB in the beginning and 109.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:01:31,038 INFO L168 Benchmark]: RCFGBuilder took 741.35 ms. Allocated memory is still 161.5 MB. Free memory was 109.6 MB in the beginning and 101.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 7.9 MB. Max. memory is 8.0 GB. [2021-02-22 02:01:31,039 INFO L168 Benchmark]: TraceAbstraction took 1892.88 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 101.5 MB in the beginning and 77.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 57.7 MB. Max. memory is 8.0 GB. [2021-02-22 02:01:31,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 161.5 MB. Free memory was 140.1 MB in the beginning and 140.0 MB in the end (delta: 107.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 479.60 ms. Allocated memory is still 161.5 MB. Free memory was 134.6 MB in the beginning and 112.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 63.43 ms. Allocated memory is still 161.5 MB. Free memory was 112.3 MB in the beginning and 109.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 741.35 ms. Allocated memory is still 161.5 MB. Free memory was 109.6 MB in the beginning and 101.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 7.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1892.88 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 101.5 MB in the beginning and 77.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 57.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form, |v_#memory_$Pointer$.base_34| has neither invar nor outvar in [(= (store |v_#valid_33| v_sll_create_~new_head~0.base_4 1) |v_#valid_32|), (= (+ v_sll_create_~len_6 1) v_sll_create_~len_7), (= (store |v_#memory_$Pointer$.base_30| v_sll_create_~new_head~0.base_4 (store (store (select |v_#memory_$Pointer$.base_30| v_sll_create_~new_head~0.base_4) (+ v_sll_create_~new_head~0.offset_4 4) 0) v_sll_create_~new_head~0.offset_4 (select (select |v_#memory_$Pointer$.base_34| v_sll_create_~new_head~0.base_4) v_sll_create_~new_head~0.offset_4))) |v_#memory_$Pointer$.base_34|), (= |v_#memory_$Pointer$.base_28| (store |v_#memory_$Pointer$.base_34| v_sll_create_~new_head~0.base_4 (store (select |v_#memory_$Pointer$.base_34| v_sll_create_~new_head~0.base_4) (+ v_sll_create_~new_head~0.offset_4 4) v_sll_create_~head~0.base_6))), (= v_sll_create_~new_head~0.offset_4 v_sll_create_~head~0.offset_5), (= v_sll_create_~head~0.base_5 v_sll_create_~new_head~0.base_4), (< v_sll_create_~new_head~0.base_4 |v_#StackHeapBarrier_8|), (= (store |v_#memory_int_34| v_sll_create_~new_head~0.base_4 (let ((.cse0 (+ v_sll_create_~new_head~0.offset_4 4))) (store (store (select |v_#memory_int_34| v_sll_create_~new_head~0.base_4) v_sll_create_~new_head~0.offset_4 v_sll_create_~data_5) .cse0 (select (select |v_#memory_int_27| v_sll_create_~new_head~0.base_4) .cse0)))) |v_#memory_int_27|), (< 0 v_sll_create_~len_7), (= (store |v_#memory_$Pointer$.offset_34| v_sll_create_~new_head~0.base_4 (store (select |v_#memory_$Pointer$.offset_34| v_sll_create_~new_head~0.base_4) (+ v_sll_create_~new_head~0.offset_4 4) v_sll_create_~head~0.offset_6)) |v_#memory_$Pointer$.offset_28|), (= |v_#memory_int_34| (store |v_#memory_int_29| v_sll_create_~new_head~0.base_4 (let ((.cse0 (+ v_sll_create_~new_head~0.offset_4 4))) (store (select |v_#memory_int_29| v_sll_create_~new_head~0.base_4) .cse0 (select (select |v_#memory_int_34| v_sll_create_~new_head~0.base_4) .cse0))))), (= (store |v_#length_23| v_sll_create_~new_head~0.base_4 8) |v_#length_22|), (= (store |v_#memory_$Pointer$.offset_30| v_sll_create_~new_head~0.base_4 (store (store (select |v_#memory_$Pointer$.offset_30| v_sll_create_~new_head~0.base_4) (+ v_sll_create_~new_head~0.offset_4 4) 0) v_sll_create_~new_head~0.offset_4 (select (select |v_#memory_$Pointer$.offset_34| v_sll_create_~new_head~0.base_4) v_sll_create_~new_head~0.offset_4))) |v_#memory_$Pointer$.offset_34|), (= v_sll_create_~new_head~0.offset_4 0), (= (select |v_#valid_33| v_sll_create_~new_head~0.base_4) 0), (> v_sll_create_~new_head~0.base_4 0)] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form, |v_#memory_$Pointer$.base_34| has neither invar nor outvar in [(= (store |v_#valid_33| v_sll_create_~new_head~0.base_4 1) |v_#valid_32|), (= (+ v_sll_create_~len_6 1) v_sll_create_~len_7), (= (store |v_#memory_$Pointer$.base_30| v_sll_create_~new_head~0.base_4 (store (store (select |v_#memory_$Pointer$.base_30| v_sll_create_~new_head~0.base_4) (+ v_sll_create_~new_head~0.offset_4 4) 0) v_sll_create_~new_head~0.offset_4 (select (select |v_#memory_$Pointer$.base_34| v_sll_create_~new_head~0.base_4) v_sll_create_~new_head~0.offset_4))) |v_#memory_$Pointer$.base_34|), (= |v_#memory_$Pointer$.base_28| (store |v_#memory_$Pointer$.base_34| v_sll_create_~new_head~0.base_4 (store (select |v_#memory_$Pointer$.base_34| v_sll_create_~new_head~0.base_4) (+ v_sll_create_~new_head~0.offset_4 4) v_sll_create_~head~0.base_6))), (= v_sll_create_~new_head~0.offset_4 v_sll_create_~head~0.offset_5), (= v_sll_create_~head~0.base_5 v_sll_create_~new_head~0.base_4), (< v_sll_create_~new_head~0.base_4 |v_#StackHeapBarrier_8|), (= (store |v_#memory_int_34| v_sll_create_~new_head~0.base_4 (let ((.cse0 (+ v_sll_create_~new_head~0.offset_4 4))) (store (store (select |v_#memory_int_34| v_sll_create_~new_head~0.base_4) v_sll_create_~new_head~0.offset_4 v_sll_create_~data_5) .cse0 (select (select |v_#memory_int_27| v_sll_create_~new_head~0.base_4) .cse0)))) |v_#memory_int_27|), (< 0 v_sll_create_~len_7), (= (store |v_#memory_$Pointer$.offset_34| v_sll_create_~new_head~0.base_4 (store (select |v_#memory_$Pointer$.offset_34| v_sll_create_~new_head~0.base_4) (+ v_sll_create_~new_head~0.offset_4 4) v_sll_create_~head~0.offset_6)) |v_#memory_$Pointer$.offset_28|), (= |v_#memory_int_34| (store |v_#memory_int_29| v_sll_create_~new_head~0.base_4 (let ((.cse0 (+ v_sll_create_~new_head~0.offset_4 4))) (store (select |v_#memory_int_29| v_sll_create_~new_head~0.base_4) .cse0 (select (select |v_#memory_int_34| v_sll_create_~new_head~0.base_4) .cse0))))), (= (store |v_#length_23| v_sll_create_~new_head~0.base_4 8) |v_#length_22|), (= (store |v_#memory_$Pointer$.offset_30| v_sll_create_~new_head~0.base_4 (store (store (select |v_#memory_$Pointer$.offset_30| v_sll_create_~new_head~0.base_4) (+ v_sll_create_~new_head~0.offset_4 4) 0) v_sll_create_~new_head~0.offset_4 (select (select |v_#memory_$Pointer$.offset_34| v_sll_create_~new_head~0.base_4) v_sll_create_~new_head~0.offset_4))) |v_#memory_$Pointer$.offset_34|), (= v_sll_create_~new_head~0.offset_4 0), (= (select |v_#valid_33| v_sll_create_~new_head~0.base_4) 0), (> v_sll_create_~new_head~0.base_4 0)]: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.computeSubstitutionMapping(SimultaneousUpdate.java:180) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...