/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/dll2n_remove_all.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:26:13,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:26:13,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:26:13,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:26:13,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:26:13,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:26:13,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:26:13,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:26:13,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:26:13,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:26:13,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:26:13,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:26:13,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:26:13,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:26:13,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:26:13,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:26:13,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:26:13,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:26:13,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:26:13,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:26:13,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:26:13,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:26:13,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:26:13,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:26:13,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:26:13,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:26:13,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:26:13,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:26:13,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:26:13,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:26:13,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:26:13,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:26:13,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:26:13,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:26:13,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:26:13,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:26:13,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:26:13,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:26:13,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:26:13,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:26:13,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:26:13,640 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:26:13,655 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:26:13,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:26:13,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:26:13,658 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:26:13,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:26:13,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:26:13,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:26:13,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:26:13,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:26:13,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:26:13,659 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:26:13,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:26:13,660 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:26:13,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:26:13,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:26:13,660 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:26:13,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:26:13,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:26:13,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:26:13,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:26:13,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:26:13,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:26:13,662 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:26:13,662 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:26:14,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:26:14,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:26:14,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:26:14,193 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:26:14,194 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:26:14,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_remove_all.i [2021-02-24 04:26:14,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faac7ef79/5578d73181c24e1b90846c83af93d1df/FLAGf7be0ec47 [2021-02-24 04:26:15,187 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:26:15,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_remove_all.i [2021-02-24 04:26:15,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faac7ef79/5578d73181c24e1b90846c83af93d1df/FLAGf7be0ec47 [2021-02-24 04:26:15,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faac7ef79/5578d73181c24e1b90846c83af93d1df [2021-02-24 04:26:15,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:26:15,491 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:26:15,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:26:15,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:26:15,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:26:15,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:26:15" (1/1) ... [2021-02-24 04:26:15,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5097a53c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:15, skipping insertion in model container [2021-02-24 04:26:15,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:26:15" (1/1) ... [2021-02-24 04:26:15,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:26:15,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:26:16,104 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/dll2n_remove_all.i[24090,24103] [2021-02-24 04:26:16,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:26:16,130 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:26:16,220 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/dll2n_remove_all.i[24090,24103] [2021-02-24 04:26:16,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:26:16,291 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:26:16,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:16 WrapperNode [2021-02-24 04:26:16,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:26:16,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:26:16,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:26:16,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:26:16,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:16" (1/1) ... [2021-02-24 04:26:16,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:16" (1/1) ... [2021-02-24 04:26:16,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:16" (1/1) ... [2021-02-24 04:26:16,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:16" (1/1) ... [2021-02-24 04:26:16,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:16" (1/1) ... [2021-02-24 04:26:16,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:16" (1/1) ... [2021-02-24 04:26:16,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:16" (1/1) ... [2021-02-24 04:26:16,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:26:16,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:26:16,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:26:16,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:26:16,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:16" (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 [2021-02-24 04:26:16,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:26:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:26:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:26:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-02-24 04:26:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-02-24 04:26:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-02-24 04:26:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-02-24 04:26:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2021-02-24 04:26:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_remove_first [2021-02-24 04:26:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:26:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:26:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:26:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 04:26:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 04:26:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:26:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:26:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-02-24 04:26:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-02-24 04:26:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-24 04:26:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-24 04:26:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-24 04:26:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-24 04:26:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-24 04:26:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-24 04:26:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-24 04:26:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-24 04:26:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-24 04:26:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-24 04:26:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-24 04:26:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-24 04:26:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-24 04:26:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-24 04:26:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-24 04:26:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-24 04:26:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-24 04:26:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-24 04:26:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-24 04:26:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-24 04:26:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-24 04:26:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-24 04:26:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-24 04:26:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-24 04:26:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-24 04:26:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-24 04:26:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-24 04:26:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-24 04:26:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-24 04:26:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-24 04:26:16,606 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-24 04:26:16,606 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-24 04:26:16,606 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-24 04:26:16,606 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-24 04:26:16,606 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-24 04:26:16,606 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-24 04:26:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-24 04:26:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-24 04:26:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-24 04:26:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-24 04:26:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-24 04:26:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-24 04:26:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-24 04:26:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-24 04:26:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-24 04:26:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-24 04:26:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-24 04:26:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-24 04:26:16,609 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-24 04:26:16,609 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-24 04:26:16,609 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 04:26:16,609 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-24 04:26:16,609 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-24 04:26:16,609 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 04:26:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-24 04:26:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-24 04:26:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-24 04:26:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-24 04:26:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-24 04:26:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-24 04:26:16,611 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-24 04:26:16,611 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-24 04:26:16,611 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:26:16,611 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-24 04:26:16,611 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-24 04:26:16,611 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-24 04:26:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-24 04:26:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-24 04:26:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-24 04:26:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-24 04:26:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-24 04:26:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-24 04:26:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-24 04:26:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-24 04:26:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-24 04:26:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-24 04:26:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-24 04:26:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-24 04:26:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-24 04:26:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-24 04:26:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-24 04:26:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-24 04:26:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-24 04:26:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-24 04:26:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-24 04:26:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-24 04:26:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-24 04:26:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-24 04:26:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-24 04:26:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-24 04:26:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-24 04:26:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-24 04:26:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-24 04:26:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-24 04:26:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-24 04:26:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-24 04:26:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-24 04:26:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-24 04:26:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-24 04:26:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-24 04:26:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-24 04:26:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-24 04:26:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-02-24 04:26:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-02-24 04:26:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 04:26:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 04:26:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:26:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2021-02-24 04:26:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure dll_remove_first [2021-02-24 04:26:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 04:26:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:26:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:26:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-24 04:26:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:26:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:26:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:26:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:26:16,981 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-02-24 04:26:17,315 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:26:17,315 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-24 04:26:17,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:26:17 BoogieIcfgContainer [2021-02-24 04:26:17,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:26:17,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:26:17,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:26:17,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:26:17,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:26:15" (1/3) ... [2021-02-24 04:26:17,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c44d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:26:17, skipping insertion in model container [2021-02-24 04:26:17,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:16" (2/3) ... [2021-02-24 04:26:17,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c44d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:26:17, skipping insertion in model container [2021-02-24 04:26:17,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:26:17" (3/3) ... [2021-02-24 04:26:17,332 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2n_remove_all.i [2021-02-24 04:26:17,346 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:26:17,354 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:26:17,379 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:26:17,422 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:26:17,422 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:26:17,423 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:26:17,423 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:26:17,423 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:26:17,423 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:26:17,423 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:26:17,423 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:26:17,451 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2021-02-24 04:26:17,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-24 04:26:17,463 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:17,464 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] [2021-02-24 04:26:17,464 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:17,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:17,472 INFO L82 PathProgramCache]: Analyzing trace with hash -963435451, now seen corresponding path program 1 times [2021-02-24 04:26:17,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:17,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870315970] [2021-02-24 04:26:17,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:17,602 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:17,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:17,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:17,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:17,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:26:17,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:17,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:17,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:26:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:17,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:17,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:17,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:26:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:17,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:17,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:26:17,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:17,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:26:17,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:26:17,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870315970] [2021-02-24 04:26:17,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:26:17,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 04:26:17,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62197325] [2021-02-24 04:26:17,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 04:26:17,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:26:18,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 04:26:18,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-24 04:26:18,007 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 7 states. [2021-02-24 04:26:18,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:26:18,485 INFO L93 Difference]: Finished difference Result 134 states and 148 transitions. [2021-02-24 04:26:18,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 04:26:18,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2021-02-24 04:26:18,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:26:18,498 INFO L225 Difference]: With dead ends: 134 [2021-02-24 04:26:18,498 INFO L226 Difference]: Without dead ends: 76 [2021-02-24 04:26:18,503 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 [2021-02-24 04:26:18,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-02-24 04:26:18,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 63. [2021-02-24 04:26:18,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-02-24 04:26:18,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2021-02-24 04:26:18,564 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 31 [2021-02-24 04:26:18,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:26:18,565 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2021-02-24 04:26:18,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 04:26:18,565 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2021-02-24 04:26:18,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-02-24 04:26:18,567 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:18,568 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] [2021-02-24 04:26:18,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:26:18,568 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:18,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:18,570 INFO L82 PathProgramCache]: Analyzing trace with hash 120408748, now seen corresponding path program 1 times [2021-02-24 04:26:18,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:18,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914201517] [2021-02-24 04:26:18,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:18,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:18,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-02-24 04:26:18,668 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$.base_37| has neither invar nor outvar in [(= (store |v_#length_18| |v_dll_create_#t~malloc6.base_3| 12) |v_#length_17|), (> 0 v_dll_create_~new_head~0.offset_9), (= (store |v_#memory_$Pointer$.offset_37| v_dll_create_~new_head~0.base_9 (store (store (select |v_#memory_$Pointer$.offset_37| v_dll_create_~new_head~0.base_9) (+ v_dll_create_~new_head~0.offset_9 4) v_dll_create_~head~0.offset_9) (+ v_dll_create_~new_head~0.offset_9 8) 0)) |v_#memory_$Pointer$.offset_30|), (< |v_dll_create_#t~malloc6.base_3| |v_#StackHeapBarrier_7|), (= (store |v_#memory_$Pointer$.offset_33| v_dll_create_~new_head~0.base_9 (store (select |v_#memory_$Pointer$.offset_33| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9 (select (select |v_#memory_$Pointer$.offset_37| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9))) |v_#memory_$Pointer$.offset_37|), (= v_dll_create_~new_head~0.base_9 v_dll_create_~head~0.base_8), (= (store |v_#memory_$Pointer$.base_33| v_dll_create_~new_head~0.base_9 (store (select |v_#memory_$Pointer$.base_33| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9 (select (select |v_#memory_$Pointer$.base_37| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9))) |v_#memory_$Pointer$.base_37|), (= v_dll_create_~len_7 (+ v_dll_create_~len_6 1)), (= (store |v_#memory_int_30| v_dll_create_~new_head~0.base_9 (let ((.cse0 (+ v_dll_create_~new_head~0.offset_9 4))) (store (store (select |v_#memory_int_30| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9 v_dll_create_~data_3) .cse0 (select (select |v_#memory_int_34| v_dll_create_~new_head~0.base_9) .cse0)))) |v_#memory_int_34|), (= v_dll_create_~head~0.offset_9 0), (< 0 v_dll_create_~len_7), (= |v_dll_create_#t~malloc6.base_3| v_dll_create_~new_head~0.base_9), (= v_dll_create_~head~0.offset_8 v_dll_create_~new_head~0.offset_9), (= (store |v_#memory_$Pointer$.base_37| v_dll_create_~new_head~0.base_9 (store (store (select |v_#memory_$Pointer$.base_37| v_dll_create_~new_head~0.base_9) (+ v_dll_create_~new_head~0.offset_9 4) v_dll_create_~head~0.base_9) (+ v_dll_create_~new_head~0.offset_9 8) 0)) |v_#memory_$Pointer$.base_30|), (= |v_#memory_int_27| (store |v_#memory_int_34| v_dll_create_~new_head~0.base_9 (let ((.cse0 (+ v_dll_create_~new_head~0.offset_9 8))) (store (select |v_#memory_int_34| v_dll_create_~new_head~0.base_9) .cse0 (select (select |v_#memory_int_27| v_dll_create_~new_head~0.base_9) .cse0))))), (= (select |v_#valid_28| |v_dll_create_#t~malloc6.base_3|) 0), (= (store |v_#valid_28| |v_dll_create_#t~malloc6.base_3| 1) |v_#valid_27|), (= |v_dll_create_#t~malloc6.offset_3| v_dll_create_~new_head~0.offset_9), (= v_dll_create_~head~0.base_9 0), (= |v_dll_create_#t~malloc6.offset_3| 0), (> |v_dll_create_#t~malloc6.base_3| 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) [2021-02-24 04:26:18,673 INFO L168 Benchmark]: Toolchain (without parser) took 3198.04 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 128.6 MB in the beginning and 85.5 MB in the end (delta: 43.1 MB). Peak memory consumption was 75.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:18,674 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 153.1 MB. Free memory is still 126.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:26:18,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.70 ms. Allocated memory is still 153.1 MB. Free memory was 127.5 MB in the beginning and 104.9 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:18,676 INFO L168 Benchmark]: Boogie Preprocessor took 91.27 ms. Allocated memory is still 153.1 MB. Free memory was 104.9 MB in the beginning and 102.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:18,677 INFO L168 Benchmark]: RCFGBuilder took 932.92 ms. Allocated memory is still 153.1 MB. Free memory was 102.0 MB in the beginning and 89.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:18,678 INFO L168 Benchmark]: TraceAbstraction took 1351.22 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 88.8 MB in the beginning and 85.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:18,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 153.1 MB. Free memory is still 126.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 798.70 ms. Allocated memory is still 153.1 MB. Free memory was 127.5 MB in the beginning and 104.9 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 91.27 ms. Allocated memory is still 153.1 MB. Free memory was 104.9 MB in the beginning and 102.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 932.92 ms. Allocated memory is still 153.1 MB. Free memory was 102.0 MB in the beginning and 89.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1351.22 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 88.8 MB in the beginning and 85.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form, |v_#memory_$Pointer$.base_37| has neither invar nor outvar in [(= (store |v_#length_18| |v_dll_create_#t~malloc6.base_3| 12) |v_#length_17|), (> 0 v_dll_create_~new_head~0.offset_9), (= (store |v_#memory_$Pointer$.offset_37| v_dll_create_~new_head~0.base_9 (store (store (select |v_#memory_$Pointer$.offset_37| v_dll_create_~new_head~0.base_9) (+ v_dll_create_~new_head~0.offset_9 4) v_dll_create_~head~0.offset_9) (+ v_dll_create_~new_head~0.offset_9 8) 0)) |v_#memory_$Pointer$.offset_30|), (< |v_dll_create_#t~malloc6.base_3| |v_#StackHeapBarrier_7|), (= (store |v_#memory_$Pointer$.offset_33| v_dll_create_~new_head~0.base_9 (store (select |v_#memory_$Pointer$.offset_33| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9 (select (select |v_#memory_$Pointer$.offset_37| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9))) |v_#memory_$Pointer$.offset_37|), (= v_dll_create_~new_head~0.base_9 v_dll_create_~head~0.base_8), (= (store |v_#memory_$Pointer$.base_33| v_dll_create_~new_head~0.base_9 (store (select |v_#memory_$Pointer$.base_33| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9 (select (select |v_#memory_$Pointer$.base_37| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9))) |v_#memory_$Pointer$.base_37|), (= v_dll_create_~len_7 (+ v_dll_create_~len_6 1)), (= (store |v_#memory_int_30| v_dll_create_~new_head~0.base_9 (let ((.cse0 (+ v_dll_create_~new_head~0.offset_9 4))) (store (store (select |v_#memory_int_30| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9 v_dll_create_~data_3) .cse0 (select (select |v_#memory_int_34| v_dll_create_~new_head~0.base_9) .cse0)))) |v_#memory_int_34|), (= v_dll_create_~head~0.offset_9 0), (< 0 v_dll_create_~len_7), (= |v_dll_create_#t~malloc6.base_3| v_dll_create_~new_head~0.base_9), (= v_dll_create_~head~0.offset_8 v_dll_create_~new_head~0.offset_9), (= (store |v_#memory_$Pointer$.base_37| v_dll_create_~new_head~0.base_9 (store (store (select |v_#memory_$Pointer$.base_37| v_dll_create_~new_head~0.base_9) (+ v_dll_create_~new_head~0.offset_9 4) v_dll_create_~head~0.base_9) (+ v_dll_create_~new_head~0.offset_9 8) 0)) |v_#memory_$Pointer$.base_30|), (= |v_#memory_int_27| (store |v_#memory_int_34| v_dll_create_~new_head~0.base_9 (let ((.cse0 (+ v_dll_create_~new_head~0.offset_9 8))) (store (select |v_#memory_int_34| v_dll_create_~new_head~0.base_9) .cse0 (select (select |v_#memory_int_27| v_dll_create_~new_head~0.base_9) .cse0))))), (= (select |v_#valid_28| |v_dll_create_#t~malloc6.base_3|) 0), (= (store |v_#valid_28| |v_dll_create_#t~malloc6.base_3| 1) |v_#valid_27|), (= |v_dll_create_#t~malloc6.offset_3| v_dll_create_~new_head~0.offset_9), (= v_dll_create_~head~0.base_9 0), (= |v_dll_create_#t~malloc6.offset_3| 0), (> |v_dll_create_#t~malloc6.base_3| 0)] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form, |v_#memory_$Pointer$.base_37| has neither invar nor outvar in [(= (store |v_#length_18| |v_dll_create_#t~malloc6.base_3| 12) |v_#length_17|), (> 0 v_dll_create_~new_head~0.offset_9), (= (store |v_#memory_$Pointer$.offset_37| v_dll_create_~new_head~0.base_9 (store (store (select |v_#memory_$Pointer$.offset_37| v_dll_create_~new_head~0.base_9) (+ v_dll_create_~new_head~0.offset_9 4) v_dll_create_~head~0.offset_9) (+ v_dll_create_~new_head~0.offset_9 8) 0)) |v_#memory_$Pointer$.offset_30|), (< |v_dll_create_#t~malloc6.base_3| |v_#StackHeapBarrier_7|), (= (store |v_#memory_$Pointer$.offset_33| v_dll_create_~new_head~0.base_9 (store (select |v_#memory_$Pointer$.offset_33| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9 (select (select |v_#memory_$Pointer$.offset_37| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9))) |v_#memory_$Pointer$.offset_37|), (= v_dll_create_~new_head~0.base_9 v_dll_create_~head~0.base_8), (= (store |v_#memory_$Pointer$.base_33| v_dll_create_~new_head~0.base_9 (store (select |v_#memory_$Pointer$.base_33| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9 (select (select |v_#memory_$Pointer$.base_37| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9))) |v_#memory_$Pointer$.base_37|), (= v_dll_create_~len_7 (+ v_dll_create_~len_6 1)), (= (store |v_#memory_int_30| v_dll_create_~new_head~0.base_9 (let ((.cse0 (+ v_dll_create_~new_head~0.offset_9 4))) (store (store (select |v_#memory_int_30| v_dll_create_~new_head~0.base_9) v_dll_create_~new_head~0.offset_9 v_dll_create_~data_3) .cse0 (select (select |v_#memory_int_34| v_dll_create_~new_head~0.base_9) .cse0)))) |v_#memory_int_34|), (= v_dll_create_~head~0.offset_9 0), (< 0 v_dll_create_~len_7), (= |v_dll_create_#t~malloc6.base_3| v_dll_create_~new_head~0.base_9), (= v_dll_create_~head~0.offset_8 v_dll_create_~new_head~0.offset_9), (= (store |v_#memory_$Pointer$.base_37| v_dll_create_~new_head~0.base_9 (store (store (select |v_#memory_$Pointer$.base_37| v_dll_create_~new_head~0.base_9) (+ v_dll_create_~new_head~0.offset_9 4) v_dll_create_~head~0.base_9) (+ v_dll_create_~new_head~0.offset_9 8) 0)) |v_#memory_$Pointer$.base_30|), (= |v_#memory_int_27| (store |v_#memory_int_34| v_dll_create_~new_head~0.base_9 (let ((.cse0 (+ v_dll_create_~new_head~0.offset_9 8))) (store (select |v_#memory_int_34| v_dll_create_~new_head~0.base_9) .cse0 (select (select |v_#memory_int_27| v_dll_create_~new_head~0.base_9) .cse0))))), (= (select |v_#valid_28| |v_dll_create_#t~malloc6.base_3|) 0), (= (store |v_#valid_28| |v_dll_create_#t~malloc6.base_3| 1) |v_#valid_27|), (= |v_dll_create_#t~malloc6.offset_3| v_dll_create_~new_head~0.offset_9), (= v_dll_create_~head~0.base_9 0), (= |v_dll_create_#t~malloc6.offset_3| 0), (> |v_dll_create_#t~malloc6.base_3| 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...