java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/list-ext-properties/test-0019_1_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-408c70d-m [2018-04-13 08:20:18,832 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-13 08:20:18,834 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-13 08:20:18,846 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-13 08:20:18,846 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-13 08:20:18,847 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-13 08:20:18,848 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-13 08:20:18,850 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-13 08:20:18,851 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-13 08:20:18,852 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-13 08:20:18,852 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-13 08:20:18,853 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-13 08:20:18,853 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-13 08:20:18,854 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-13 08:20:18,855 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-13 08:20:18,856 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-13 08:20:18,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-13 08:20:18,859 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-13 08:20:18,860 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-13 08:20:18,861 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-13 08:20:18,863 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-13 08:20:18,863 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-13 08:20:18,863 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-13 08:20:18,864 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-13 08:20:18,864 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-13 08:20:18,865 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-13 08:20:18,865 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-13 08:20:18,866 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-13 08:20:18,867 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-13 08:20:18,867 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-13 08:20:18,867 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-13 08:20:18,867 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-13 08:20:18,877 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-13 08:20:18,877 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-13 08:20:18,878 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-13 08:20:18,878 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-13 08:20:18,879 INFO L133 SettingsManager]: * Use SBE=true [2018-04-13 08:20:18,879 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-13 08:20:18,879 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-13 08:20:18,879 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-13 08:20:18,879 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-13 08:20:18,879 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-13 08:20:18,880 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-13 08:20:18,880 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-13 08:20:18,880 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-13 08:20:18,880 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-13 08:20:18,880 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-13 08:20:18,880 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-13 08:20:18,880 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-13 08:20:18,881 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-13 08:20:18,881 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-13 08:20:18,881 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-13 08:20:18,881 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-13 08:20:18,881 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-13 08:20:18,881 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-13 08:20:18,882 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-13 08:20:18,909 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-13 08:20:18,919 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-13 08:20:18,922 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-13 08:20:18,924 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-13 08:20:18,924 INFO L276 PluginConnector]: CDTParser initialized [2018-04-13 08:20:18,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,294 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG4ec996943 [2018-04-13 08:20:19,424 INFO L287 CDTParser]: IsIndexed: true [2018-04-13 08:20:19,424 INFO L288 CDTParser]: Found 1 translation units. [2018-04-13 08:20:19,424 INFO L168 CDTParser]: Scanning test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,432 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-13 08:20:19,432 INFO L215 ultiparseSymbolTable]: [2018-04-13 08:20:19,432 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-13 08:20:19,432 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data ('alloc_data') in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,432 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,433 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_data ('free_data') in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,433 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-13 08:20:19,433 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____int8_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,433 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__u_short in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,433 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__off_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,433 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__gid_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,433 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____swblk_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,433 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____blkcnt64_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,433 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__ldiv_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,433 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__u_int64_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,433 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____fsblkcnt64_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,434 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__ssize_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,434 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____mode_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,434 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____timer_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,434 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____fd_mask in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,434 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__nlink_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,434 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,434 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____uid_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,434 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__fsfilcnt_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,434 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____u_short in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,434 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pid_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,435 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____uint64_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,435 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__u_int8_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,435 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__int32_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,435 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____ssize_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,435 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__timer_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,435 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__mode_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,435 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____nlink_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,435 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____sig_atomic_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,435 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__key_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,435 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__div_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,436 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____clockid_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,436 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__clockid_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,436 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_spinlock_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,436 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____suseconds_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,436 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__u_int16_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,436 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__fsblkcnt_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,436 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____int32_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,436 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____sigset_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,436 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____uint32_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,436 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__caddr_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,436 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_mutexattr_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,436 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__u_int in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,437 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____pid_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,437 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____ino_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,437 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____intptr_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,437 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_barrier_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,437 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__blksize_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,437 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_attr_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,437 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____u_char in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,437 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____off64_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,437 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__size_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,437 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_once_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,437 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____u_quad_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,438 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_cond_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,438 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__TData in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,438 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____rlim_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,438 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__wchar_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,438 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__quad_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,438 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____pthread_list_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,438 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__lldiv_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,438 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__int16_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,438 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____socklen_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,438 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__uid_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,438 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____u_long in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,438 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__u_char in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,439 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__blkcnt_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,439 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____int16_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,439 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__ulong in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,439 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,439 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____uint16_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,439 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____quad_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,439 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__sigset_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,439 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__u_long in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,439 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____ino64_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,439 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____gid_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____blksize_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____caddr_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____WAIT_STATUS in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____fsid_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____off_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____id_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__clock_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__suseconds_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__fd_mask in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__u_int32_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__fd_set in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__daddr_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,440 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____loff_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____dev_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____daddr_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____key_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____uint8_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__time_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__fsid_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__dev_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____blkcnt_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____clock_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__uint in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__int64_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_condattr_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__id_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,441 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__loff_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____qaddr_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____rlim64_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____fsfilcnt_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____time_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__int8_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_key_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__u_quad_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__ushort in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____int64_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_mutex_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__ino_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____u_int in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____useconds_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____fsfilcnt64_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_rwlock_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__pthread_barrierattr_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,442 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i__register_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,443 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest________true_valid_memsafety_true_termination_i____fsblkcnt_t in test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:19,455 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG4ec996943 [2018-04-13 08:20:19,458 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-13 08:20:19,459 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-13 08:20:19,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-13 08:20:19,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-13 08:20:19,463 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-13 08:20:19,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 08:20:19" (1/1) ... [2018-04-13 08:20:19,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7780349e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 08:20:19, skipping insertion in model container [2018-04-13 08:20:19,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 08:20:19" (1/1) ... [2018-04-13 08:20:19,475 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 08:20:19,500 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 08:20:19,633 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 08:20:19,667 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 08:20:19,672 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 114 non ball SCCs. Number of states in SCCs 114. [2018-04-13 08:20:19,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 08:20:19 WrapperNode [2018-04-13 08:20:19,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-13 08:20:19,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-13 08:20:19,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-13 08:20:19,710 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-13 08:20:19,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 08:20:19" (1/1) ... [2018-04-13 08:20:19,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 08:20:19" (1/1) ... [2018-04-13 08:20:19,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 08:20:19" (1/1) ... [2018-04-13 08:20:19,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 08:20:19" (1/1) ... [2018-04-13 08:20:19,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 08:20:19" (1/1) ... [2018-04-13 08:20:19,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 08:20:19" (1/1) ... [2018-04-13 08:20:19,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 08:20:19" (1/1) ... [2018-04-13 08:20:19,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-13 08:20:19,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-13 08:20:19,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-13 08:20:19,768 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-13 08:20:19,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 08:20:19" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-04-13 08:20:19,846 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-13 08:20:19,846 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-13 08:20:19,846 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data [2018-04-13 08:20:19,846 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_data [2018-04-13 08:20:19,846 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-13 08:20:19,846 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-13 08:20:19,846 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-13 08:20:19,846 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-13 08:20:19,846 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-13 08:20:19,846 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-13 08:20:19,846 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-13 08:20:19,846 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-13 08:20:19,846 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-13 08:20:19,846 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-13 08:20:19,847 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-13 08:20:19,847 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-13 08:20:19,847 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-13 08:20:19,847 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-13 08:20:19,847 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-13 08:20:19,847 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-13 08:20:19,847 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-13 08:20:19,847 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-13 08:20:19,847 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-13 08:20:19,848 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-13 08:20:19,848 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-13 08:20:19,848 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-13 08:20:19,848 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-13 08:20:19,848 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-13 08:20:19,848 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-13 08:20:19,848 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-13 08:20:19,848 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-13 08:20:19,848 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-13 08:20:19,849 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-13 08:20:19,849 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-13 08:20:19,849 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-13 08:20:19,849 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-13 08:20:19,849 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-13 08:20:19,849 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-13 08:20:19,849 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-13 08:20:19,849 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-13 08:20:19,849 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-13 08:20:19,849 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-13 08:20:19,850 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-13 08:20:19,850 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-13 08:20:19,850 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-13 08:20:19,850 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-13 08:20:19,850 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-13 08:20:19,850 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-13 08:20:19,850 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-13 08:20:19,850 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-13 08:20:19,850 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-13 08:20:19,851 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-13 08:20:19,851 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-13 08:20:19,851 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-13 08:20:19,851 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-13 08:20:19,851 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-13 08:20:19,851 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-13 08:20:19,851 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-13 08:20:19,851 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-13 08:20:19,851 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-13 08:20:19,852 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-13 08:20:19,852 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-13 08:20:19,852 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-13 08:20:19,852 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-13 08:20:19,852 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-13 08:20:19,852 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-13 08:20:19,852 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-13 08:20:19,852 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-13 08:20:19,852 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-13 08:20:19,852 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-13 08:20:19,852 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-13 08:20:19,853 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-13 08:20:19,853 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-13 08:20:19,853 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-13 08:20:19,853 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-13 08:20:19,853 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-13 08:20:19,853 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-13 08:20:19,853 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-13 08:20:19,853 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-13 08:20:19,853 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-13 08:20:19,853 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-13 08:20:19,854 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-13 08:20:19,854 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-13 08:20:19,854 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-13 08:20:19,854 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-13 08:20:19,854 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-13 08:20:19,854 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-13 08:20:19,854 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-13 08:20:19,854 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-13 08:20:19,854 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-13 08:20:19,854 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-13 08:20:19,854 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-13 08:20:19,855 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-13 08:20:19,855 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-13 08:20:19,855 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-13 08:20:19,855 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-13 08:20:19,855 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-13 08:20:19,855 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-13 08:20:19,855 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-13 08:20:19,855 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-13 08:20:19,855 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-13 08:20:19,855 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-13 08:20:19,856 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-13 08:20:19,856 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-13 08:20:19,856 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-13 08:20:19,856 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-13 08:20:19,856 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-13 08:20:19,856 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data [2018-04-13 08:20:19,856 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-13 08:20:19,856 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-13 08:20:19,856 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-13 08:20:19,856 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-13 08:20:19,856 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_data [2018-04-13 08:20:19,857 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-13 08:20:19,857 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-13 08:20:19,857 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-13 08:20:19,857 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-13 08:20:19,857 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-13 08:20:19,857 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-13 08:20:20,118 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-13 08:20:20,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 08:20:20 BoogieIcfgContainer [2018-04-13 08:20:20,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-13 08:20:20,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-13 08:20:20,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-13 08:20:20,121 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-13 08:20:20,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 08:20:19" (1/3) ... [2018-04-13 08:20:20,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99c34cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 08:20:20, skipping insertion in model container [2018-04-13 08:20:20,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 08:20:19" (2/3) ... [2018-04-13 08:20:20,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99c34cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 08:20:20, skipping insertion in model container [2018-04-13 08:20:20,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 08:20:20" (3/3) ... [2018-04-13 08:20:20,124 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0019_1_true-valid-memsafety_true-termination.i [2018-04-13 08:20:20,131 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-13 08:20:20,136 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 25 error locations. [2018-04-13 08:20:20,163 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-13 08:20:20,164 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-13 08:20:20,164 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-13 08:20:20,164 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-13 08:20:20,164 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-13 08:20:20,164 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-13 08:20:20,164 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-13 08:20:20,165 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-13 08:20:20,165 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-13 08:20:20,165 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-13 08:20:20,174 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2018-04-13 08:20:20,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-13 08:20:20,179 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:20,179 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 08:20:20,179 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:20,182 INFO L82 PathProgramCache]: Analyzing trace with hash 372371681, now seen corresponding path program 1 times [2018-04-13 08:20:20,183 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:20,183 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:20,210 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:20,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:20,210 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:20,246 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:20,259 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:20:20,260 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:20:20,260 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:20:20,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:20,295 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:20:20,330 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:20,331 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,335 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,336 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-13 08:20:20,367 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:20,368 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:20,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 08:20:20,369 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,379 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:20,380 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-04-13 08:20:20,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:20,406 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:20,406 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-13 08:20:20,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-13 08:20:20,418 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-13 08:20:20,418 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-13 08:20:20,419 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 6 states. [2018-04-13 08:20:20,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:20,555 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2018-04-13 08:20:20,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-13 08:20:20,557 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-04-13 08:20:20,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:20,563 INFO L225 Difference]: With dead ends: 61 [2018-04-13 08:20:20,563 INFO L226 Difference]: Without dead ends: 58 [2018-04-13 08:20:20,565 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-13 08:20:20,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-04-13 08:20:20,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-04-13 08:20:20,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-13 08:20:20,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-04-13 08:20:20,587 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 10 [2018-04-13 08:20:20,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:20,588 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-04-13 08:20:20,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-13 08:20:20,588 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-04-13 08:20:20,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-13 08:20:20,588 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:20,588 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 08:20:20,588 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:20,589 INFO L82 PathProgramCache]: Analyzing trace with hash 372371682, now seen corresponding path program 1 times [2018-04-13 08:20:20,589 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:20,589 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:20,589 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:20,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:20,590 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:20,600 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:20,605 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:20:20,606 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:20:20,606 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:20:20,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:20,629 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:20:20,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:20,638 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,643 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:20,644 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,648 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,648 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 08:20:20,671 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:20,671 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:20,672 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-04-13 08:20:20,673 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,683 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:20,683 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:20,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 08:20:20,684 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,689 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:20,689 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-04-13 08:20:20,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:20,703 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:20,703 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-13 08:20:20,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-13 08:20:20,704 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-13 08:20:20,704 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-13 08:20:20,704 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 6 states. [2018-04-13 08:20:20,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:20,819 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-04-13 08:20:20,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-13 08:20:20,819 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-04-13 08:20:20,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:20,820 INFO L225 Difference]: With dead ends: 52 [2018-04-13 08:20:20,820 INFO L226 Difference]: Without dead ends: 52 [2018-04-13 08:20:20,820 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-13 08:20:20,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-04-13 08:20:20,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-04-13 08:20:20,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-13 08:20:20,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-04-13 08:20:20,823 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 10 [2018-04-13 08:20:20,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:20,824 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-04-13 08:20:20,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-13 08:20:20,824 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-04-13 08:20:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-13 08:20:20,824 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:20,824 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 08:20:20,824 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:20,824 INFO L82 PathProgramCache]: Analyzing trace with hash -669305883, now seen corresponding path program 1 times [2018-04-13 08:20:20,824 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:20,824 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:20,825 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:20,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:20,825 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:20,839 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:20,842 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:20:20,842 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:20:20,843 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:20:20,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:20,871 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:20:20,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:20,879 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,880 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-13 08:20:20,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 08:20:20,885 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 08:20:20,886 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,887 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,889 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,890 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:9 [2018-04-13 08:20:20,895 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:20,895 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:20,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 33 [2018-04-13 08:20:20,896 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,901 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,901 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:23 [2018-04-13 08:20:20,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-04-13 08:20:20,914 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:20,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2018-04-13 08:20:20,915 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,920 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:20,927 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:35 [2018-04-13 08:20:20,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2018-04-13 08:20:20,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 21 [2018-04-13 08:20:20,958 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:20,965 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:20,968 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:20,968 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:42, output treesize:15 [2018-04-13 08:20:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:20,976 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:20,976 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-13 08:20:20,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-13 08:20:20,976 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-13 08:20:20,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-04-13 08:20:20,976 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 7 states. [2018-04-13 08:20:21,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:21,085 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-04-13 08:20:21,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-13 08:20:21,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-04-13 08:20:21,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:21,087 INFO L225 Difference]: With dead ends: 51 [2018-04-13 08:20:21,087 INFO L226 Difference]: Without dead ends: 51 [2018-04-13 08:20:21,087 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-04-13 08:20:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-13 08:20:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-13 08:20:21,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-13 08:20:21,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-04-13 08:20:21,091 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 14 [2018-04-13 08:20:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:21,091 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-04-13 08:20:21,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-13 08:20:21,091 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-04-13 08:20:21,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-13 08:20:21,091 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:21,092 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 08:20:21,092 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:21,092 INFO L82 PathProgramCache]: Analyzing trace with hash -669305882, now seen corresponding path program 1 times [2018-04-13 08:20:21,092 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:21,092 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:21,093 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:21,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:21,093 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:21,107 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:21,112 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:20:21,112 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:20:21,112 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:20:21,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:21,139 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:20:21,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:21,144 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,151 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:21,151 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,154 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,155 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 08:20:21,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 08:20:21,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 08:20:21,168 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,170 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 08:20:21,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 08:20:21,180 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,181 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,185 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,185 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:33, output treesize:26 [2018-04-13 08:20:21,197 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:21,198 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:21,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2018-04-13 08:20:21,200 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,208 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-13 08:20:21,209 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,215 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,215 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:30 [2018-04-13 08:20:21,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-04-13 08:20:21,234 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:21,234 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2018-04-13 08:20:21,234 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,239 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-04-13 08:20:21,256 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:21,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-13 08:20:21,257 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,260 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,267 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:56, output treesize:42 [2018-04-13 08:20:21,278 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2018-04-13 08:20:21,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 21 [2018-04-13 08:20:21,280 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:21,285 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:21,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-13 08:20:21,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-13 08:20:21,292 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,293 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,298 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:21,298 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:56, output treesize:18 [2018-04-13 08:20:21,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:21,307 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:21,307 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-13 08:20:21,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-13 08:20:21,307 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-13 08:20:21,307 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-13 08:20:21,308 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 7 states. [2018-04-13 08:20:21,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:21,425 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2018-04-13 08:20:21,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-13 08:20:21,425 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-04-13 08:20:21,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:21,425 INFO L225 Difference]: With dead ends: 50 [2018-04-13 08:20:21,425 INFO L226 Difference]: Without dead ends: 50 [2018-04-13 08:20:21,426 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-04-13 08:20:21,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-13 08:20:21,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-13 08:20:21,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-13 08:20:21,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-04-13 08:20:21,428 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 14 [2018-04-13 08:20:21,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:21,428 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-04-13 08:20:21,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-13 08:20:21,428 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-04-13 08:20:21,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-13 08:20:21,428 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:21,428 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 08:20:21,428 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:21,428 INFO L82 PathProgramCache]: Analyzing trace with hash -2053365435, now seen corresponding path program 1 times [2018-04-13 08:20:21,429 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:21,429 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:21,429 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:21,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:21,429 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:21,438 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:21,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:21,461 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:21,461 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-13 08:20:21,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-13 08:20:21,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-13 08:20:21,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-13 08:20:21,462 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 5 states. [2018-04-13 08:20:21,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:21,524 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-04-13 08:20:21,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-13 08:20:21,524 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-04-13 08:20:21,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:21,525 INFO L225 Difference]: With dead ends: 49 [2018-04-13 08:20:21,525 INFO L226 Difference]: Without dead ends: 49 [2018-04-13 08:20:21,525 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-13 08:20:21,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-04-13 08:20:21,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-04-13 08:20:21,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-13 08:20:21,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2018-04-13 08:20:21,527 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 17 [2018-04-13 08:20:21,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:21,527 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2018-04-13 08:20:21,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-13 08:20:21,528 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-04-13 08:20:21,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-13 08:20:21,528 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:21,528 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 08:20:21,528 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:21,528 INFO L82 PathProgramCache]: Analyzing trace with hash -2053365434, now seen corresponding path program 1 times [2018-04-13 08:20:21,528 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:21,528 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:21,529 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:21,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:21,529 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:21,534 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:21,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:21,565 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:21,565 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-13 08:20:21,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-13 08:20:21,566 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-13 08:20:21,566 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-13 08:20:21,566 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 5 states. [2018-04-13 08:20:21,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:21,610 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-04-13 08:20:21,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-13 08:20:21,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-04-13 08:20:21,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:21,611 INFO L225 Difference]: With dead ends: 48 [2018-04-13 08:20:21,611 INFO L226 Difference]: Without dead ends: 48 [2018-04-13 08:20:21,611 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-13 08:20:21,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-04-13 08:20:21,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-04-13 08:20:21,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-04-13 08:20:21,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-04-13 08:20:21,613 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 17 [2018-04-13 08:20:21,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:21,613 INFO L459 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-04-13 08:20:21,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-13 08:20:21,613 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-04-13 08:20:21,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-13 08:20:21,614 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:21,614 INFO L355 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] [2018-04-13 08:20:21,614 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:21,614 INFO L82 PathProgramCache]: Analyzing trace with hash -121749147, now seen corresponding path program 1 times [2018-04-13 08:20:21,614 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:21,614 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:21,615 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:21,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:21,615 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:21,623 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:21,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:21,683 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:21,684 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-13 08:20:21,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-13 08:20:21,684 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-13 08:20:21,684 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-04-13 08:20:21,684 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 10 states. [2018-04-13 08:20:21,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:21,779 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-04-13 08:20:21,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-13 08:20:21,779 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-04-13 08:20:21,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:21,780 INFO L225 Difference]: With dead ends: 49 [2018-04-13 08:20:21,780 INFO L226 Difference]: Without dead ends: 49 [2018-04-13 08:20:21,780 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-04-13 08:20:21,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-04-13 08:20:21,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2018-04-13 08:20:21,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-04-13 08:20:21,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-04-13 08:20:21,782 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 25 [2018-04-13 08:20:21,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:21,782 INFO L459 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-04-13 08:20:21,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-13 08:20:21,782 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-04-13 08:20:21,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-13 08:20:21,782 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:21,783 INFO L355 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] [2018-04-13 08:20:21,784 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:21,784 INFO L82 PathProgramCache]: Analyzing trace with hash -121749146, now seen corresponding path program 1 times [2018-04-13 08:20:21,784 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:21,784 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:21,785 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:21,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:21,785 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:21,793 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:21,798 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:20:21,799 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:20:21,799 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:20:21,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:21,844 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:20:21,847 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:21,847 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:21,851 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,855 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,859 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 08:20:21,893 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 08:20:21,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 08:20:21,895 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,896 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,907 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:21,907 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-13 08:20:21,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2018-04-13 08:20:21,955 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:21,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-13 08:20:21,957 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,963 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:21,978 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:21,978 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:51, output treesize:38 [2018-04-13 08:20:22,008 WARN L1033 $PredicateComparison]: unable to prove that (and (exists ((__U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_~pdata.offset Int)) (and (<= (+ __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_~pdata.offset 8) (select |c_#length| |c___U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#in~pdata.base|)) (<= 0 __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_~pdata.offset) (= (select (select |c_#memory_$Pointer$.base| |c___U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#in~pdata.base|) __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_~pdata.offset) |c___U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#t~mem2.base|) (= (select (select |c_#memory_$Pointer$.offset| |c___U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#in~pdata.base|) __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_~pdata.offset) 0) (<= __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_~pdata.offset |c___U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#in~pdata.offset|))) (exists ((|__U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#t~malloc0.base| Int) (|__U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#t~malloc1.base| Int)) (and (= (store (store |c_old(#length)| |__U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#t~malloc0.base| 4) |__U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#t~malloc1.base| 4) |c_#length|) (<= (select |c_old(#valid)| |__U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#t~malloc0.base|) 0)))) is different from true [2018-04-13 08:20:22,014 WARN L1033 $PredicateComparison]: unable to prove that (and (exists ((__U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_~pdata.offset Int)) (and (<= (+ __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_~pdata.offset 8) (select |c_#length| |c___U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#in~pdata.base|)) (<= 0 __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_~pdata.offset) (<= 4 (select |c_#length| (select (select |c_#memory_$Pointer$.base| |c___U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#in~pdata.base|) __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_~pdata.offset))) (= (select (select |c_#memory_$Pointer$.offset| |c___U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#in~pdata.base|) __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_~pdata.offset) 0) (<= __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_~pdata.offset |c___U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#in~pdata.offset|))) (exists ((|__U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#t~malloc0.base| Int) (|__U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#t~malloc1.base| Int)) (and (= (store (store |c_old(#length)| |__U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#t~malloc0.base| 4) |__U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#t~malloc1.base| 4) |c_#length|) (<= (select |c_old(#valid)| |__U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_data_#t~malloc0.base|) 0)))) is different from true [2018-04-13 08:20:22,030 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:22,033 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:22,034 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 08:20:22,034 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:22,047 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:22,047 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:22,048 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-04-13 08:20:22,051 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:22,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 30 [2018-04-13 08:20:22,052 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:22,060 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:22,068 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:22,068 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:57, output treesize:45 [2018-04-13 08:20:22,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-04-13 08:20:22,093 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:20:22,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-04-13 08:20:22,094 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:22,096 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:22,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-13 08:20:22,105 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:20:22,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-13 08:20:22,106 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:22,110 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:22,121 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:22,121 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:54, output treesize:27 [2018-04-13 08:20:22,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:22,204 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:22,204 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-04-13 08:20:22,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-13 08:20:22,204 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-13 08:20:22,204 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=153, Unknown=5, NotChecked=50, Total=240 [2018-04-13 08:20:22,204 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 16 states. [2018-04-13 08:20:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:22,655 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-04-13 08:20:22,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-13 08:20:22,655 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 25 [2018-04-13 08:20:22,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:22,655 INFO L225 Difference]: With dead ends: 48 [2018-04-13 08:20:22,655 INFO L226 Difference]: Without dead ends: 48 [2018-04-13 08:20:22,656 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=8, NotChecked=86, Total=600 [2018-04-13 08:20:22,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-04-13 08:20:22,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2018-04-13 08:20:22,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-04-13 08:20:22,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-04-13 08:20:22,659 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 25 [2018-04-13 08:20:22,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:22,659 INFO L459 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-04-13 08:20:22,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-13 08:20:22,659 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-04-13 08:20:22,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-13 08:20:22,660 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:22,660 INFO L355 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] [2018-04-13 08:20:22,660 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:22,660 INFO L82 PathProgramCache]: Analyzing trace with hash 520743713, now seen corresponding path program 1 times [2018-04-13 08:20:22,660 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:22,660 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:22,661 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:22,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:22,661 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:22,672 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:22,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:22,756 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:22,756 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-13 08:20:22,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-13 08:20:22,756 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-13 08:20:22,756 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-04-13 08:20:22,756 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 11 states. [2018-04-13 08:20:22,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:22,856 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2018-04-13 08:20:22,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-13 08:20:22,856 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-04-13 08:20:22,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:22,856 INFO L225 Difference]: With dead ends: 46 [2018-04-13 08:20:22,856 INFO L226 Difference]: Without dead ends: 46 [2018-04-13 08:20:22,857 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2018-04-13 08:20:22,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-04-13 08:20:22,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2018-04-13 08:20:22,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-04-13 08:20:22,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-04-13 08:20:22,859 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 26 [2018-04-13 08:20:22,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:22,859 INFO L459 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-04-13 08:20:22,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-13 08:20:22,859 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-04-13 08:20:22,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-13 08:20:22,859 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:22,860 INFO L355 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] [2018-04-13 08:20:22,860 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:22,860 INFO L82 PathProgramCache]: Analyzing trace with hash 520743714, now seen corresponding path program 1 times [2018-04-13 08:20:22,860 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:22,860 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:22,860 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:22,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:22,860 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:22,872 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:23,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:23,002 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:23,002 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-13 08:20:23,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-13 08:20:23,002 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-13 08:20:23,002 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-04-13 08:20:23,003 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 11 states. [2018-04-13 08:20:23,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:23,093 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-04-13 08:20:23,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-13 08:20:23,093 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-04-13 08:20:23,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:23,093 INFO L225 Difference]: With dead ends: 41 [2018-04-13 08:20:23,093 INFO L226 Difference]: Without dead ends: 41 [2018-04-13 08:20:23,094 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-04-13 08:20:23,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-13 08:20:23,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-04-13 08:20:23,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-13 08:20:23,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2018-04-13 08:20:23,096 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 26 [2018-04-13 08:20:23,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:23,096 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2018-04-13 08:20:23,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-13 08:20:23,096 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2018-04-13 08:20:23,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-13 08:20:23,097 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:23,097 INFO L355 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] [2018-04-13 08:20:23,097 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:23,097 INFO L82 PathProgramCache]: Analyzing trace with hash -80397564, now seen corresponding path program 1 times [2018-04-13 08:20:23,097 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:23,097 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:23,098 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:23,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:23,098 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:23,110 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:23,114 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:20:23,114 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:20:23,114 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:20:23,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:23,145 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:20:23,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:23,152 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:23,158 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,161 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,162 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 08:20:23,185 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 08:20:23,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 08:20:23,186 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,187 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,194 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,194 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:36 [2018-04-13 08:20:23,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 50 [2018-04-13 08:20:23,229 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:23,229 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:23,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 71 [2018-04-13 08:20:23,230 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,237 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,245 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:23,245 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:71, output treesize:76 [2018-04-13 08:20:23,331 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:23,332 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:23,333 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:23,334 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:23,335 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 93 [2018-04-13 08:20:23,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 67 [2018-04-13 08:20:23,339 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,344 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,353 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:23,354 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:23,354 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 45 [2018-04-13 08:20:23,372 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-04-13 08:20:23,372 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,374 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:23,375 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:23,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 22 [2018-04-13 08:20:23,376 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,381 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,390 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:23,390 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:86, output treesize:67 [2018-04-13 08:20:23,440 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 51 [2018-04-13 08:20:23,442 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:20:23,442 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:20:23,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2018-04-13 08:20:23,443 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,450 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,457 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:23,458 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:78, output treesize:28 [2018-04-13 08:20:23,524 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:23,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 28 [2018-04-13 08:20:23,525 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:23,531 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:23,531 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:20 [2018-04-13 08:20:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:23,555 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:23,555 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-04-13 08:20:23,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-13 08:20:23,556 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-13 08:20:23,556 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2018-04-13 08:20:23,556 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 15 states. [2018-04-13 08:20:25,935 WARN L148 SmtUtils]: Spent 2006ms on a formula simplification that was a NOOP. DAG size: 25 [2018-04-13 08:20:29,983 WARN L151 SmtUtils]: Spent 4034ms on a formula simplification. DAG size of input: 39 DAG size of output 33 [2018-04-13 08:20:30,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:30,069 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-04-13 08:20:30,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-13 08:20:30,069 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 32 [2018-04-13 08:20:30,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:30,070 INFO L225 Difference]: With dead ends: 44 [2018-04-13 08:20:30,070 INFO L226 Difference]: Without dead ends: 44 [2018-04-13 08:20:30,071 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2018-04-13 08:20:30,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-04-13 08:20:30,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2018-04-13 08:20:30,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-13 08:20:30,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-04-13 08:20:30,073 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 32 [2018-04-13 08:20:30,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:30,074 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2018-04-13 08:20:30,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-13 08:20:30,074 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-04-13 08:20:30,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-13 08:20:30,074 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:30,074 INFO L355 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] [2018-04-13 08:20:30,075 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:30,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1223963579, now seen corresponding path program 1 times [2018-04-13 08:20:30,075 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:30,075 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:30,075 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:30,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:30,076 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:30,088 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:30,092 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:20:30,092 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:20:30,092 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:20:30,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:30,128 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:20:30,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:30,139 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,144 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,145 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-04-13 08:20:30,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 08:20:30,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 08:20:30,162 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,163 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,173 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 08:20:30,175 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 08:20:30,175 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,176 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,182 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,182 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:40, output treesize:26 [2018-04-13 08:20:30,191 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:30,192 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,201 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:30,201 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:30,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2018-04-13 08:20:30,202 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,208 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,208 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:33 [2018-04-13 08:20:30,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2018-04-13 08:20:30,228 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:30,229 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-13 08:20:30,229 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,233 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,244 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2018-04-13 08:20:30,246 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:30,247 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-13 08:20:30,247 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,250 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,258 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:56, output treesize:51 [2018-04-13 08:20:30,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2018-04-13 08:20:30,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-13 08:20:30,293 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,295 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,309 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:30,309 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:80, output treesize:72 [2018-04-13 08:20:30,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2018-04-13 08:20:30,363 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,382 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:30,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 53 [2018-04-13 08:20:30,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2018-04-13 08:20:30,386 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,394 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:30,409 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:108, output treesize:63 [2018-04-13 08:20:30,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-04-13 08:20:30,473 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:20:30,473 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:30,474 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:20:30,474 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:30,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 37 [2018-04-13 08:20:30,475 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,480 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2018-04-13 08:20:30,498 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:20:30,498 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:30,499 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:20:30,499 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:20:30,500 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2018-04-13 08:20:30,500 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,507 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:30,517 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:30,518 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:91, output treesize:33 [2018-04-13 08:20:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:30,687 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:30,687 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-04-13 08:20:30,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-13 08:20:30,687 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-13 08:20:30,688 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=323, Unknown=1, NotChecked=0, Total=380 [2018-04-13 08:20:30,688 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 20 states. [2018-04-13 08:20:31,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:31,288 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2018-04-13 08:20:31,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-13 08:20:31,288 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 33 [2018-04-13 08:20:31,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:31,289 INFO L225 Difference]: With dead ends: 42 [2018-04-13 08:20:31,289 INFO L226 Difference]: Without dead ends: 40 [2018-04-13 08:20:31,290 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=176, Invalid=877, Unknown=3, NotChecked=0, Total=1056 [2018-04-13 08:20:31,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-13 08:20:31,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-13 08:20:31,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-13 08:20:31,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 39 transitions. [2018-04-13 08:20:31,291 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 39 transitions. Word has length 33 [2018-04-13 08:20:31,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:31,291 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 39 transitions. [2018-04-13 08:20:31,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-13 08:20:31,291 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 39 transitions. [2018-04-13 08:20:31,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-13 08:20:31,292 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:20:31,292 INFO L355 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] [2018-04-13 08:20:31,292 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr5AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr4AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr6AssertViolationMEMORY_FREE, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__free_dataErr7AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr3RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr1RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr9RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr7RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr2RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr8RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr4RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr0RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr6RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr10RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr11RequiresViolation, __U_MULTI_ftest________true_valid_memsafety_true_termination_i__alloc_dataErr5RequiresViolation]=== [2018-04-13 08:20:31,292 INFO L82 PathProgramCache]: Analyzing trace with hash 630436865, now seen corresponding path program 1 times [2018-04-13 08:20:31,292 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:20:31,292 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:20:31,293 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:31,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:31,293 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:20:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:31,302 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:20:31,305 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:20:31,306 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:20:31,306 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:20:31,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:20:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:20:31,331 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:20:31,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 08:20:31,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 08:20:31,364 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:31,365 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:31,372 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:31,372 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2018-04-13 08:20:31,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:20:31,384 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:31,415 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:31,415 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:54, output treesize:53 [2018-04-13 08:20:31,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 39 [2018-04-13 08:20:31,447 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:31,448 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:31,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 58 [2018-04-13 08:20:31,449 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:31,459 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:31,474 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:20:31,474 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:74 [2018-04-13 08:20:31,570 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:31,571 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:31,571 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 18 [2018-04-13 08:20:31,571 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:31,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-04-13 08:20:31,596 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:20:31,597 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:31,598 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:20:31,599 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:20:31,599 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 58 [2018-04-13 08:20:31,600 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 08:20:31,612 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:31,622 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:20:31,623 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:107, output treesize:41 [2018-04-13 08:20:31,773 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~mem6.base| Int) (|main_#t~mem7.base| Int) (|main_~#data~0.base| Int)) (let ((.cse1 (store |c_old(#valid)| |main_~#data~0.base| 1))) (let ((.cse2 (store .cse1 |main_#t~mem6.base| 1))) (let ((.cse0 (store (store .cse2 |main_#t~mem7.base| 1) |main_#t~mem6.base| 0))) (and (= 1 (select .cse0 |main_#t~mem7.base|)) (not (= 0 |main_#t~mem7.base|)) (= 0 (select .cse1 |main_#t~mem6.base|)) (= (store (store .cse0 |main_#t~mem7.base| 0) |main_~#data~0.base| 0) |c_#valid|) (= 0 (select .cse2 |main_#t~mem7.base|)) (= (select |c_old(#valid)| |main_~#data~0.base|) 0)))))) is different from true [2018-04-13 08:20:31,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:20:31,782 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 08:20:31,783 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-04-13 08:20:31,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-13 08:20:31,783 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-13 08:20:31,783 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=234, Unknown=5, NotChecked=30, Total=306 [2018-04-13 08:20:31,783 INFO L87 Difference]: Start difference. First operand 40 states and 39 transitions. Second operand 18 states. [2018-04-13 08:20:32,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:20:32,177 INFO L93 Difference]: Finished difference Result 39 states and 38 transitions. [2018-04-13 08:20:32,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-13 08:20:32,177 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 39 [2018-04-13 08:20:32,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:20:32,177 INFO L225 Difference]: With dead ends: 39 [2018-04-13 08:20:32,177 INFO L226 Difference]: Without dead ends: 0 [2018-04-13 08:20:32,178 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=403, Unknown=6, NotChecked=40, Total=506 [2018-04-13 08:20:32,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-13 08:20:32,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-13 08:20:32,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-13 08:20:32,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-13 08:20:32,178 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2018-04-13 08:20:32,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:20:32,178 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-13 08:20:32,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-13 08:20:32,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-13 08:20:32,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-13 08:20:32,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 08:20:32 BoogieIcfgContainer [2018-04-13 08:20:32,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-13 08:20:32,183 INFO L168 Benchmark]: Toolchain (without parser) took 12724.90 ms. Allocated memory was 405.8 MB in the beginning and 749.7 MB in the end (delta: 343.9 MB). Free memory was 342.1 MB in the beginning and 670.8 MB in the end (delta: -328.8 MB). Peak memory consumption was 15.2 MB. Max. memory is 5.3 GB. [2018-04-13 08:20:32,184 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 405.8 MB. Free memory is still 368.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-13 08:20:32,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.49 ms. Allocated memory is still 405.8 MB. Free memory was 342.1 MB in the beginning and 317.0 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. [2018-04-13 08:20:32,185 INFO L168 Benchmark]: Boogie Preprocessor took 57.00 ms. Allocated memory is still 405.8 MB. Free memory was 317.0 MB in the beginning and 314.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-13 08:20:32,185 INFO L168 Benchmark]: RCFGBuilder took 351.15 ms. Allocated memory was 405.8 MB in the beginning and 613.4 MB in the end (delta: 207.6 MB). Free memory was 314.3 MB in the beginning and 548.3 MB in the end (delta: -234.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 5.3 GB. [2018-04-13 08:20:32,185 INFO L168 Benchmark]: TraceAbstraction took 12063.79 ms. Allocated memory was 613.4 MB in the beginning and 749.7 MB in the end (delta: 136.3 MB). Free memory was 546.6 MB in the beginning and 670.8 MB in the end (delta: -124.2 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-04-13 08:20:32,186 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 405.8 MB. Free memory is still 368.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 250.49 ms. Allocated memory is still 405.8 MB. Free memory was 342.1 MB in the beginning and 317.0 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 57.00 ms. Allocated memory is still 405.8 MB. Free memory was 317.0 MB in the beginning and 314.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 351.15 ms. Allocated memory was 405.8 MB in the beginning and 613.4 MB in the end (delta: 207.6 MB). Free memory was 314.3 MB in the beginning and 548.3 MB in the end (delta: -234.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 12063.79 ms. Allocated memory was 613.4 MB in the beginning and 749.7 MB in the end (delta: 136.3 MB). Free memory was 546.6 MB in the beginning and 670.8 MB in the end (delta: -124.2 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 634]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 636]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 634]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 634]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 634]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 636]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 637]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 637]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 642]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 642]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 642]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 639]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 642]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 626]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 625]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 628]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 627]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 626]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 628]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 627]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 625]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 627]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 628]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 628]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 627]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 25 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 67 locations, 25 error locations. SAFE Result, 12.0s OverallTime, 13 OverallIterations, 1 TraceHistogramMax, 8.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 399 SDtfs, 521 SDslu, 1262 SDs, 0 SdLazy, 2111 SolverSat, 91 SolverUnsat, 18 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 267 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 14 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 465 NumberOfCodeBlocks, 465 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 275 ConstructedInterpolants, 69 QuantifiedInterpolants, 167338 SizeOfPredicates, 93 NumberOfNonLiveVariables, 996 ConjunctsInSsa, 249 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-13_08-20-32-192.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0019_1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-13_08-20-32-192.csv Received shutdown request...