/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/heap-data/quick_sort_split.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 22:08:23,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 22:08:23,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 22:08:23,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 22:08:23,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 22:08:23,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 22:08:23,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 22:08:23,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 22:08:23,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 22:08:23,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 22:08:23,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 22:08:23,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 22:08:23,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 22:08:23,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 22:08:23,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 22:08:23,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 22:08:23,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 22:08:23,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 22:08:23,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 22:08:23,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 22:08:23,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 22:08:23,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 22:08:23,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 22:08:23,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 22:08:23,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 22:08:23,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 22:08:23,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 22:08:23,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 22:08:23,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 22:08:23,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 22:08:23,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 22:08:23,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 22:08:23,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 22:08:23,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 22:08:23,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 22:08:23,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 22:08:23,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 22:08:23,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 22:08:23,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 22:08:23,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 22:08:23,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 22:08:23,535 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 22:08:23,545 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 22:08:23,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 22:08:23,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 22:08:23,547 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 22:08:23,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 22:08:23,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 22:08:23,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 22:08:23,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 22:08:23,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 22:08:23,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 22:08:23,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 22:08:23,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 22:08:23,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 22:08:23,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 22:08:23,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 22:08:23,549 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 22:08:23,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 22:08:23,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 22:08:23,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:08:23,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 22:08:23,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 22:08:23,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 22:08:23,551 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 22:08:23,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 22:08:24,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 22:08:24,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 22:08:24,010 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 22:08:24,012 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 22:08:24,014 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/quick_sort_split.i [2020-09-04 22:08:24,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09243a53c/258b639c05de4ad3b08bccaf34bae91f/FLAG9d0b83f78 [2020-09-04 22:08:24,759 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 22:08:24,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-data/quick_sort_split.i [2020-09-04 22:08:24,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09243a53c/258b639c05de4ad3b08bccaf34bae91f/FLAG9d0b83f78 [2020-09-04 22:08:24,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09243a53c/258b639c05de4ad3b08bccaf34bae91f [2020-09-04 22:08:24,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 22:08:25,000 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 22:08:25,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 22:08:25,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 22:08:25,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 22:08:25,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:08:24" (1/1) ... [2020-09-04 22:08:25,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d71150d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:25, skipping insertion in model container [2020-09-04 22:08:25,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:08:24" (1/1) ... [2020-09-04 22:08:25,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 22:08:25,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 22:08:25,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:08:25,574 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 22:08:25,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:08:25,688 INFO L208 MainTranslator]: Completed translation [2020-09-04 22:08:25,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:25 WrapperNode [2020-09-04 22:08:25,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 22:08:25,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 22:08:25,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 22:08:25,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 22:08:25,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:25" (1/1) ... [2020-09-04 22:08:25,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:25" (1/1) ... [2020-09-04 22:08:25,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:25" (1/1) ... [2020-09-04 22:08:25,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:25" (1/1) ... [2020-09-04 22:08:25,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:25" (1/1) ... [2020-09-04 22:08:25,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:25" (1/1) ... [2020-09-04 22:08:25,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:25" (1/1) ... [2020-09-04 22:08:25,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 22:08:25,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 22:08:25,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 22:08:25,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 22:08:25,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 22:08:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 22:08:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 22:08:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-04 22:08:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-04 22:08:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2020-09-04 22:08:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure create_list [2020-09-04 22:08:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 22:08:25,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 22:08:25,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 22:08:25,843 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-04 22:08:25,843 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-04 22:08:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-04 22:08:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-04 22:08:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-04 22:08:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-04 22:08:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-04 22:08:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-04 22:08:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-04 22:08:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-04 22:08:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-04 22:08:25,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-04 22:08:25,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-04 22:08:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-04 22:08:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-04 22:08:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-04 22:08:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-04 22:08:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-04 22:08:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-04 22:08:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-04 22:08:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-04 22:08:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-04 22:08:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-04 22:08:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-04 22:08:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-04 22:08:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-04 22:08:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-04 22:08:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-04 22:08:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-04 22:08:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-04 22:08:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-04 22:08:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-04 22:08:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-04 22:08:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-04 22:08:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-04 22:08:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-04 22:08:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-04 22:08:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-04 22:08:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-04 22:08:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-04 22:08:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-04 22:08:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-04 22:08:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-04 22:08:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-04 22:08:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-04 22:08:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-04 22:08:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-04 22:08:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-04 22:08:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-04 22:08:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-04 22:08:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-04 22:08:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-04 22:08:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 22:08:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-04 22:08:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-04 22:08:25,859 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 22:08:25,859 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-04 22:08:25,859 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-04 22:08:25,859 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-04 22:08:25,859 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-04 22:08:25,859 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-04 22:08:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 22:08:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-04 22:08:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-04 22:08:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-04 22:08:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 22:08:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-04 22:08:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-04 22:08:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-04 22:08:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-04 22:08:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-04 22:08:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-04 22:08:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-04 22:08:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-04 22:08:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-04 22:08:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-04 22:08:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-04 22:08:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-04 22:08:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-04 22:08:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-04 22:08:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-04 22:08:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-04 22:08:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-04 22:08:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-04 22:08:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-04 22:08:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-04 22:08:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-04 22:08:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-04 22:08:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-04 22:08:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-04 22:08:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-04 22:08:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-04 22:08:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-04 22:08:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-04 22:08:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-04 22:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-04 22:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-04 22:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-04 22:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-04 22:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-04 22:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-04 22:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-04 22:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-04 22:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-04 22:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-04 22:08:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2020-09-04 22:08:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 22:08:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 22:08:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 22:08:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 22:08:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure create_list [2020-09-04 22:08:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 22:08:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-04 22:08:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 22:08:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 22:08:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 22:08:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 22:08:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 22:08:26,441 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 22:08:26,441 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-04 22:08:26,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:08:26 BoogieIcfgContainer [2020-09-04 22:08:26,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 22:08:26,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 22:08:26,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 22:08:26,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 22:08:26,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 10:08:24" (1/3) ... [2020-09-04 22:08:26,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23574ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:08:26, skipping insertion in model container [2020-09-04 22:08:26,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:08:25" (2/3) ... [2020-09-04 22:08:26,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23574ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:08:26, skipping insertion in model container [2020-09-04 22:08:26,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:08:26" (3/3) ... [2020-09-04 22:08:26,467 INFO L109 eAbstractionObserver]: Analyzing ICFG quick_sort_split.i [2020-09-04 22:08:26,480 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 22:08:26,491 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-04 22:08:26,514 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-09-04 22:08:26,546 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 22:08:26,550 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 22:08:26,550 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 22:08:26,550 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 22:08:26,551 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 22:08:26,551 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 22:08:26,552 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 22:08:26,560 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 22:08:26,587 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-09-04 22:08:26,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-04 22:08:26,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:08:26,606 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] [2020-09-04 22:08:26,607 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:08:26,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:08:26,615 INFO L82 PathProgramCache]: Analyzing trace with hash 958208796, now seen corresponding path program 1 times [2020-09-04 22:08:26,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:08:26,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668573704] [2020-09-04 22:08:26,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:08:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:26,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:08:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:26,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-04 22:08:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:26,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 22:08:26,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668573704] [2020-09-04 22:08:26,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:08:26,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 22:08:26,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578815870] [2020-09-04 22:08:26,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 22:08:26,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:08:27,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 22:08:27,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 22:08:27,009 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 4 states. [2020-09-04 22:08:27,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:08:27,286 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2020-09-04 22:08:27,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 22:08:27,288 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-09-04 22:08:27,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:08:27,306 INFO L225 Difference]: With dead ends: 133 [2020-09-04 22:08:27,306 INFO L226 Difference]: Without dead ends: 79 [2020-09-04 22:08:27,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 22:08:27,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-04 22:08:27,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-09-04 22:08:27,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-04 22:08:27,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2020-09-04 22:08:27,376 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 29 [2020-09-04 22:08:27,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:08:27,376 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2020-09-04 22:08:27,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 22:08:27,377 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2020-09-04 22:08:27,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-04 22:08:27,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:08:27,380 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] [2020-09-04 22:08:27,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 22:08:27,380 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:08:27,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:08:27,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1823620041, now seen corresponding path program 1 times [2020-09-04 22:08:27,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:08:27,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331330358] [2020-09-04 22:08:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:08:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:27,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:08:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:27,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-04 22:08:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:27,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 22:08:27,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331330358] [2020-09-04 22:08:27,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:08:27,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 22:08:27,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994981536] [2020-09-04 22:08:27,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 22:08:27,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:08:27,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 22:08:27,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 22:08:27,543 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand 5 states. [2020-09-04 22:08:27,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:08:27,747 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2020-09-04 22:08:27,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 22:08:27,747 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-09-04 22:08:27,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:08:27,749 INFO L225 Difference]: With dead ends: 90 [2020-09-04 22:08:27,749 INFO L226 Difference]: Without dead ends: 70 [2020-09-04 22:08:27,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 22:08:27,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-04 22:08:27,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-04 22:08:27,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-04 22:08:27,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2020-09-04 22:08:27,765 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 31 [2020-09-04 22:08:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:08:27,766 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2020-09-04 22:08:27,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 22:08:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2020-09-04 22:08:27,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-04 22:08:27,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:08:27,768 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] [2020-09-04 22:08:27,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 22:08:27,768 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:08:27,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:08:27,769 INFO L82 PathProgramCache]: Analyzing trace with hash 663231917, now seen corresponding path program 1 times [2020-09-04 22:08:27,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:08:27,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354282383] [2020-09-04 22:08:27,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:08:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:27,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:08:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:27,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-04 22:08:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:08:27,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 22:08:27,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354282383] [2020-09-04 22:08:27,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:08:27,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 22:08:27,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942021588] [2020-09-04 22:08:27,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 22:08:27,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:08:27,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 22:08:27,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 22:08:27,892 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand 5 states. [2020-09-04 22:08:28,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:08:28,079 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2020-09-04 22:08:28,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 22:08:28,080 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-09-04 22:08:28,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:08:28,080 INFO L225 Difference]: With dead ends: 71 [2020-09-04 22:08:28,080 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 22:08:28,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 22:08:28,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 22:08:28,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 22:08:28,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 22:08:28,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 22:08:28,083 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-09-04 22:08:28,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:08:28,084 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 22:08:28,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 22:08:28,087 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 22:08:28,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 22:08:28,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 22:08:28,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 22:08:28,568 INFO L271 CegarLoopResult]: At program point L578-1(line 578) the Hoare annotation is: true [2020-09-04 22:08:28,568 INFO L271 CegarLoopResult]: At program point L576(line 576) the Hoare annotation is: true [2020-09-04 22:08:28,568 INFO L271 CegarLoopResult]: At program point L576-1(lines 570 577) the Hoare annotation is: true [2020-09-04 22:08:28,569 INFO L271 CegarLoopResult]: At program point L574(line 574) the Hoare annotation is: true [2020-09-04 22:08:28,569 INFO L271 CegarLoopResult]: At program point L572(line 572) the Hoare annotation is: true [2020-09-04 22:08:28,569 INFO L271 CegarLoopResult]: At program point L572-1(line 572) the Hoare annotation is: true [2020-09-04 22:08:28,569 INFO L271 CegarLoopResult]: At program point L570(line 570) the Hoare annotation is: true [2020-09-04 22:08:28,569 INFO L271 CegarLoopResult]: At program point L572-2(line 572) the Hoare annotation is: true [2020-09-04 22:08:28,569 INFO L271 CegarLoopResult]: At program point L570-2(line 570) the Hoare annotation is: true [2020-09-04 22:08:28,570 INFO L271 CegarLoopResult]: At program point L570-3(line 570) the Hoare annotation is: true [2020-09-04 22:08:28,570 INFO L271 CegarLoopResult]: At program point create_listEXIT(lines 569 579) the Hoare annotation is: true [2020-09-04 22:08:28,570 INFO L271 CegarLoopResult]: At program point L573(lines 573 576) the Hoare annotation is: true [2020-09-04 22:08:28,570 INFO L271 CegarLoopResult]: At program point L571(lines 571 577) the Hoare annotation is: true [2020-09-04 22:08:28,570 INFO L271 CegarLoopResult]: At program point L571-1(line 571) the Hoare annotation is: true [2020-09-04 22:08:28,570 INFO L271 CegarLoopResult]: At program point L571-3(line 571) the Hoare annotation is: true [2020-09-04 22:08:28,570 INFO L271 CegarLoopResult]: At program point L571-4(lines 571 577) the Hoare annotation is: true [2020-09-04 22:08:28,571 INFO L264 CegarLoopResult]: At program point create_listENTRY(lines 569 579) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-04 22:08:28,571 INFO L271 CegarLoopResult]: At program point create_listFINAL(lines 569 579) the Hoare annotation is: true [2020-09-04 22:08:28,571 INFO L271 CegarLoopResult]: At program point L578(line 578) the Hoare annotation is: true [2020-09-04 22:08:28,571 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-04 22:08:28,571 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 22:08:28,571 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 22:08:28,572 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 22:08:28,572 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 22:08:28,572 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2020-09-04 22:08:28,572 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2020-09-04 22:08:28,572 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2020-09-04 22:08:28,572 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-04 22:08:28,573 INFO L268 CegarLoopResult]: For program point L67-1(line 67) no Hoare annotation was computed. [2020-09-04 22:08:28,573 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2020-09-04 22:08:28,573 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2020-09-04 22:08:28,573 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-09-04 22:08:28,573 INFO L268 CegarLoopResult]: For program point L72-1(line 72) no Hoare annotation was computed. [2020-09-04 22:08:28,573 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2020-09-04 22:08:28,573 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 22:08:28,574 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 22:08:28,574 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 22:08:28,574 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 22:08:28,574 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 580 602) the Hoare annotation is: true [2020-09-04 22:08:28,574 INFO L264 CegarLoopResult]: At program point L597-1(lines 580 602) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,574 INFO L271 CegarLoopResult]: At program point L597-2(lines 580 602) the Hoare annotation is: true [2020-09-04 22:08:28,574 INFO L264 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: false [2020-09-04 22:08:28,575 INFO L264 CegarLoopResult]: At program point L593-1(lines 593 594) the Hoare annotation is: false [2020-09-04 22:08:28,575 INFO L264 CegarLoopResult]: At program point L593-2(line 593) the Hoare annotation is: false [2020-09-04 22:08:28,575 INFO L264 CegarLoopResult]: At program point L593-4(line 593) the Hoare annotation is: false [2020-09-04 22:08:28,575 INFO L264 CegarLoopResult]: At program point L593-5(lines 593 594) the Hoare annotation is: false [2020-09-04 22:08:28,575 INFO L264 CegarLoopResult]: At program point L585-2(lines 585 591) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,576 INFO L271 CegarLoopResult]: At program point L581(line 581) the Hoare annotation is: true [2020-09-04 22:08:28,576 INFO L271 CegarLoopResult]: At program point L581-1(line 581) the Hoare annotation is: true [2020-09-04 22:08:28,576 INFO L264 CegarLoopResult]: At program point L598(line 598) the Hoare annotation is: false [2020-09-04 22:08:28,576 INFO L264 CegarLoopResult]: At program point L598-1(lines 598 599) the Hoare annotation is: false [2020-09-04 22:08:28,576 INFO L264 CegarLoopResult]: At program point L598-2(line 598) the Hoare annotation is: false [2020-09-04 22:08:28,576 INFO L264 CegarLoopResult]: At program point L594(line 594) the Hoare annotation is: false [2020-09-04 22:08:28,576 INFO L264 CegarLoopResult]: At program point L598-4(line 598) the Hoare annotation is: false [2020-09-04 22:08:28,577 INFO L264 CegarLoopResult]: At program point L598-5(lines 598 599) the Hoare annotation is: false [2020-09-04 22:08:28,577 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,577 INFO L264 CegarLoopResult]: At program point L586(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,577 INFO L264 CegarLoopResult]: At program point L586-1(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,577 INFO L264 CegarLoopResult]: At program point L586-2(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,578 INFO L271 CegarLoopResult]: At program point L582(line 582) the Hoare annotation is: true [2020-09-04 22:08:28,578 INFO L264 CegarLoopResult]: At program point L586-4(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,578 INFO L264 CegarLoopResult]: At program point L586-5(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,578 INFO L264 CegarLoopResult]: At program point L586-6(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,578 INFO L264 CegarLoopResult]: At program point L586-7(line 586) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,579 INFO L264 CegarLoopResult]: At program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 599) the Hoare annotation is: false [2020-09-04 22:08:28,579 INFO L264 CegarLoopResult]: At program point L599(line 599) the Hoare annotation is: false [2020-09-04 22:08:28,579 INFO L264 CegarLoopResult]: At program point L595(line 595) the Hoare annotation is: false [2020-09-04 22:08:28,579 INFO L264 CegarLoopResult]: At program point L595-1(line 595) the Hoare annotation is: false [2020-09-04 22:08:28,579 INFO L264 CegarLoopResult]: At program point L587(line 587) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,580 INFO L264 CegarLoopResult]: At program point L587-1(line 587) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,580 INFO L264 CegarLoopResult]: At program point L587-2(line 587) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,580 INFO L264 CegarLoopResult]: At program point L583(line 583) the Hoare annotation is: (and (= main_~low~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,580 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 594) the Hoare annotation is: false [2020-09-04 22:08:28,580 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 580 602) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-04 22:08:28,581 INFO L264 CegarLoopResult]: At program point L600(line 600) the Hoare annotation is: false [2020-09-04 22:08:28,581 INFO L264 CegarLoopResult]: At program point L600-1(line 600) the Hoare annotation is: false [2020-09-04 22:08:28,581 INFO L264 CegarLoopResult]: At program point L592-1(lines 580 602) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,581 INFO L264 CegarLoopResult]: At program point L588(line 588) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,581 INFO L264 CegarLoopResult]: At program point L588-1(line 588) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,581 INFO L264 CegarLoopResult]: At program point L584(line 584) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2020-09-04 22:08:28,582 INFO L271 CegarLoopResult]: At program point append_to_listEXIT(lines 562 568) the Hoare annotation is: true [2020-09-04 22:08:28,582 INFO L271 CegarLoopResult]: At program point L566(line 566) the Hoare annotation is: true [2020-09-04 22:08:28,582 INFO L271 CegarLoopResult]: At program point L565(line 565) the Hoare annotation is: true [2020-09-04 22:08:28,582 INFO L264 CegarLoopResult]: At program point append_to_listENTRY(lines 562 568) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-04 22:08:28,582 INFO L271 CegarLoopResult]: At program point L564(line 564) the Hoare annotation is: true [2020-09-04 22:08:28,582 INFO L271 CegarLoopResult]: At program point L565-1(line 565) the Hoare annotation is: true [2020-09-04 22:08:28,583 INFO L264 CegarLoopResult]: At program point L563(line 563) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-04 22:08:28,583 INFO L271 CegarLoopResult]: At program point L564-1(line 564) the Hoare annotation is: true [2020-09-04 22:08:28,583 INFO L264 CegarLoopResult]: At program point L562(lines 562 568) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-04 22:08:28,583 INFO L271 CegarLoopResult]: At program point L563-1(line 563) the Hoare annotation is: true [2020-09-04 22:08:28,583 INFO L271 CegarLoopResult]: At program point L564-2(line 564) the Hoare annotation is: true [2020-09-04 22:08:28,583 INFO L264 CegarLoopResult]: At program point L562-1(lines 562 568) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-04 22:08:28,584 INFO L271 CegarLoopResult]: At program point append_to_listFINAL(lines 562 568) the Hoare annotation is: true [2020-09-04 22:08:28,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 10:08:28 BoogieIcfgContainer [2020-09-04 22:08:28,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 22:08:28,611 INFO L168 Benchmark]: Toolchain (without parser) took 3609.67 ms. Allocated memory was 146.3 MB in the beginning and 247.5 MB in the end (delta: 101.2 MB). Free memory was 102.3 MB in the beginning and 174.3 MB in the end (delta: -72.1 MB). Peak memory consumption was 112.0 MB. Max. memory is 7.1 GB. [2020-09-04 22:08:28,612 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 146.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 22:08:28,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.15 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 170.3 MB in the end (delta: -68.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-09-04 22:08:28,614 INFO L168 Benchmark]: Boogie Preprocessor took 74.78 ms. Allocated memory is still 204.5 MB. Free memory was 170.3 MB in the beginning and 167.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-04 22:08:28,615 INFO L168 Benchmark]: RCFGBuilder took 684.43 ms. Allocated memory is still 204.5 MB. Free memory was 167.5 MB in the beginning and 117.5 MB in the end (delta: 50.0 MB). Peak memory consumption was 50.0 MB. Max. memory is 7.1 GB. [2020-09-04 22:08:28,616 INFO L168 Benchmark]: TraceAbstraction took 2153.11 ms. Allocated memory was 204.5 MB in the beginning and 247.5 MB in the end (delta: 43.0 MB). Free memory was 116.8 MB in the beginning and 174.3 MB in the end (delta: -57.5 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. [2020-09-04 22:08:28,620 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 146.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.15 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 170.3 MB in the end (delta: -68.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.78 ms. Allocated memory is still 204.5 MB. Free memory was 170.3 MB in the beginning and 167.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 684.43 ms. Allocated memory is still 204.5 MB. Free memory was 167.5 MB in the beginning and 117.5 MB in the end (delta: 50.0 MB). Peak memory consumption was 50.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2153.11 ms. Allocated memory was 204.5 MB in the beginning and 247.5 MB in the end (delta: 43.0 MB). Free memory was 116.8 MB in the beginning and 174.3 MB in the end (delta: -57.5 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 594]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 599]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((0 == high && low == 0) && high == 0) && low == 0 - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 569]: Procedure Contract for create_list Derived contract for procedure create_list: 1 - ProcedureContractResult [Line: 580]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 562]: Procedure Contract for append_to_list Derived contract for procedure append_to_list: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 93 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 217 SDtfs, 62 SDslu, 236 SDs, 0 SdLazy, 274 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 83 LocationsWithAnnotation, 96 PreInvPairs, 128 NumberOfFragments, 394 HoareAnnotationTreeSize, 96 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 83 FomulaSimplificationsInter, 61 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 6245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...